Defra modules of Rescue 3 training courses

See also Alternatives to ‘Defra courses’ for industrial working in and near water

Using the ‘Rescue 3 accredited’ logo

What is the ‘Rescue 3 accredited’ logo?

The ‘Rescue 3 accredited’ logo shows that an organisation or individual currently holds a Rescue 3 qualification.

Rescue 3 training courses are delivered by approved Rescue 3 training providers, according to the Rescue 3 course standards. Each student completes an individually-numbered skill sheet (training log), which is logged and checked in the Rescue 3 training provider database. Certificates are then issued to those students.

Who can use the ‘Rescue 3 accredited’ logo?

Any organisation or individual who has in-date Rescue 3 students may display the ‘Rescue 3 accredited’ logo on their website.

There are currently more than 60,000 in-date Rescue 3 students worldwide, from more than 4,000 different organisations. There are more than 300 Rescue 3 training providers, delivering over 3,500 Rescue 3 courses worldwide every year.

Any of these people or their organisations may choose to use the ‘Rescue 3 accredited’ logo.

If you place it on your website, we ask that you please link the image to www.rescue3europe.com (Europe) or www.rescue3.com (rest of the world).

Where can I download the Rescue 3 accredited logo?

Here! It’s available in two colour schemes, and in JPG, PNG (transparent background and filled background) and PDF format. If you require it in another image format, please Contact Us.

Blue and red, on white

JPG
PNG (transparent)
PNG (fill)
PDF

White and red, on black

JPG
PNG (transparent)
PNG (fill)
PDF

Where can I use the ‘Rescue 3 accredited’ logo?

Anywhere that you are accurately reflecting your relationship to Rescue 3.

This includes, but is not limited to:

• Websites
• Email signatures
• Signs
• Displays
• Other marketing materials
• PPE and equipment
• Vehicles

If you wish to get a tattoo of the logo, please Contact Us first and we’ll try to talk you out of it. If there’s no discouraging you, we’ll at least try to persuade you to get a small tattoo on your upper arm, rather than a full face tattoo.

How can I check if someone is accredited by Rescue 3?

Every Rescue 3 student receives a PDF certificate by email upon completion of the course. These show their unique skill sheet number, and the qualification expiry date. They also include a QR code which can be used to check their authenticity.

A sample certificate is shown below. Certificates are available in more than 30 different languages, based upon the preferred language of the training provider and/or student, but they all follow the same format.

Students may also optionally purchase an ID card which has their photo, and a QR code that provides a live list of all their qualifications.

Use of the ‘accredited’ logo on its own doesn’t prove an in-date qualification. Always ask for a certificate or an ID card if verifying a qualification.

You can also contact the Rescue 3 head office to check the qualification details of any Rescue 3 training provider, instructor or student.

How long are Rescue 3 qualifications valid for?

All student-level Rescue 3 qualifications are valid for 3 years from the date of completion.

Rescue 3 instructors must recertify every 2 years.

How can I check if I’m receiving Rescue 3 training?

Rescue 3 training must be delivered by a Rescue 3 Training Provider using trained and in-date Rescue 3 instructors, and following the Rescue 3 course standards.

All students will fill in a Rescue 3 skill sheet, which the training provider logs in the Rescue 3 training provider database, and which is checked by Rescue 3.

At the end of the course, all students receive a PDF certificate by email.

If you haven’t received your certificate after the course, contact the training provider who delivered it to you in the first instance. If you still need help, you can contact Rescue 3 directly.

Which image formats is the ‘Rescue 3 accredited’ logo available in?

The ‘Rescue 3 accredited’ logo is available as .jpg, .png and .pdf files.

It’s available in two different colour schemes: blue and red on white, or white and red on black.

If you need it in another format, please get in touch – we may be able to help.

Can I change the ‘Rescue 3 accredited’ logo?

Basic resizing of the logo, so that it best fits the layout on your website? Sure! Please keep an eye on the aspect ratio though.

Please don’t add/remove text or images to the logo, change the colours, or make other changes to the logo.

What other Rescue 3 logos are there?

The Rescue 3 logo is used to refer to both Rescue 3 Europe and Rescue 3 International. Rescue 3 Europe is the accrediting body for all Rescue 3 training within Europe. Rescue 3 International is the accrediting body for all Rescue 3 training in the rest of the world (outside of Europe).

The above three logos must only be used with the express written permission of Rescue 3. (No written permission is needed for the ‘Rescue 3 accredited’ logo).

Only approved Rescue 3 training providers may use the ‘Rescue 3 Europe training provider’ or ‘Rescue 3 International training provider’ logo, depending on their jurisdiction. (See Become a Training Provider if you would like to become an approved training provider).

Safety courses for film, TV and media production crew

Rescue 3 Europe now offers a suite of internationally accredited safety courses designed specifically for film, TV and media production teams and crew. Open dates are offered as well as closed courses for companies at a location to suit a production team.

Designed combining Rescue 3’s over forty years of experience developing and accrediting safety and technical rescue courses with training provider Adventure Consultancy Worldwide Limited’s proven track record working with production companies on film and TV shoots as location safety advisers, consultants, film fixers, logistics experts and production trainers. Clients include the BBC, Netflix, Discovery Channel, National Geographic, Disney, Sky, Warner Bros and Amazon Prime.

These tailored courses address the varied roles of production team members from researchers, production managers, producers/directors to camera operators, instilling confidence when researching, planning and working in different and potentially challenging location environments. Critically they teach what basic safe practices need to be implemented.

Participants gain an internationally recognised qualification valid for 3 years to add to their CVs. Whilst not negating the need for specialist off-site safety advisors in the different stages of production, candidates will gain the knowledge to assess potential shoot locations at the outset, potentially saving time and money on recces to unsuitable locations, as well as ensuring better logistical and safety planning for recces and shoots.

Health and safety and insurance company requirements are increasing around the safety of shoots, and a more qualified production team and crew is a clear advantage when assessing and working in potentially hazardous locations.

The syllabus’s deliver an understanding of safe systems of work, including risk assessments and other forms of pre-planning undertaken by off-site safety advisors. They also illustrate the realities of working on location with on-site safety cover, and the capabilities of the safety teams and the equipment they’ll be working with. Practical skills for working safely in complex environments, plus basic self-rescue, and techniques for rescuing a colleague are taught.

Rescue 3’s safety courses for production crew delivered by are available across a wide range of shoot environments:

Safe Working Near Water for Production Crew (SWNWPC) is a 1-day course, for production crew who need to work safely near water.

Safe Working In Water for Production Crew (SWIWPC) is a 2-day course, with a higher capability than the SWNWPC course, including elements of working in water, and basic techniques for rescuing a colleague.

Lifejacket Use for Production Crew (LJUPC) is a half-day course, looking specifically at lifejacket use, for example if production crew have existing water awareness training.

Safe Operating in Boats for Production Crew (SOBPC) is a 1-day course for helping production crew gain confidence as a passenger in a boat on flat or moving water, whilst undertaking their tasks related to filming.

Outdoor Risk Management for Production Crew (ORMPC) is a 2-day course for production crew working in remote areas, upland terrain and/or unfamiliar terrain. The course enables them to identify hazards and give them basic skills to work safely and deal with incidents in these environments.

Safe Working at Height for Production Crew (SWAHPC) is a 1-day course that gives production crew members the knowledge and skills to recognise height-related risks, and apply appropriate safe systems of work.

Safe Working on Ice for Production Crew (SWIPC) is a 2-day course, for production crew working on or near ice, including ice testing, safe travelling on ice, and self-rescue techniques.

Techniques for rescues from vehicles in water

Introduction

In part one, I focused on the decision-making criteria that would drive tactical choice or dealing generally with rescues for vehicles in water. This time, I will focus on the actual techniques available to responders in rescuing a casualty from a vehicle in water.

There are several operational models (normally summed up with a catchy mnemonic) that are applicable to such incidents, but the generic rescue principles apply equally to vehicles in water, with perhaps a few provisos:

LAST (Locate, Access, Stabilise, Transport) is commonly used in water/flood related rescues and is equally applicable to rescues from vehicles in water. In its simplest version, it outlines a process where we locate the vehicle (and occupants), make initial access to get to the location of the vehicle and then stabilise (secure) the vehicle and/or occupants before finally transporting the  occupants to a safe location out of the water.

Given that we are dealing with vehicles it is also worth considering the application of pathways associated with road traffic collisions. The ‘Six Phases Model’ for a Road Traffic Collision is  potentially applicable to more complex rescue from vehicles in water, including where glass management may be required to create anchor points on the vehicle.

• Safety and Scene Assessment
• Stabilisation and Initial Access
• Glass Management
• Space Creation
• Full Access
• Immobilisation and Extrication

However, as identified in the TEMPOE model developed by Battalion Chief Tim Rogers of Charlotte Fire Department, with inland water incidents we need to consider that tactical choice is probably largely determined by three key factors.

• Water Energy
• Water Temperature
• Time the casualty has been in the water

Whichever technique we use to access the vehicle and transport the casualties from the vehicle, it has to be capable of coping with the energy of the water. As we saw in part one, water speed and depth are key factors for whether a car will be washed away, but equally they determine whether we could access by low energy techniques such as wading or need higher energy options like powered craft or tensioned rope solutions.

The temperature of the water and the time the casualties have been in the water are key to determining the ability of the casualty to assist in their own rescue. A number of water rescue techniques are categorised as ‘conditional rescues’ in that they only work on the condition that the casualty plays an active part in their rescue. For example, the use of a throwline deployed from the shore to a casualty on the roof of a car is only going to be successful if the casualty is able to hold onto the rope for the full duration from catching the rope to being pulled safely to the shore.

Most casualties who have been immersed in cold water and subjected to the physical and psychological stresses of being in a vehicle in moving water, cannot be relied upon to successfully  participate in their own rescue and more hand’s on ‘true’ rescue techniques where the rescuers take control of the casualty are the required norm.

Vehicle access

Initial access to the vehicle and occupants is generally required if we are to stabilise the vehicle and/or make a contact rescue of the occupants. There are several techniques open to us to achieve this initial access and we can roughly categorise these into low energy and high energy options. Those in the low energy category are only applicable to low energy water conditions.

These categories would include:

Low energy

• Shallow water wade
• Paddle boat/sled
• Tethered swimmer
• 2 & 4 point tethers

High energy

• Single-bank tethered boat
• Tensioned diagonal
• Powerboat
• Highline rope systems (with or without a boat)
• Helicopter

Consideration of the application and implementation of all of these techniques is beyond the scope of this article and is best addressed practically in a Rescue from Vehicles in Water training course. Thankfully the growth in artificial white-water courses, has seen a similar growth in the availability of realistic quality training courses on this topic.

Common to most of the above techniques is the issue of where we aim for when making initial access to the vehicle. Anecdotal evidence would suggest that many vehicles in water incidents occur in very low energy/slow flow conditions and thus there is negligible risk of the vehicle moving and wading access can be made to any point around the vehicle. Indeed, there is probably a greater risk to responders and casualties from hidden siphon features under the water such as missing drainage covers than from being trapped against or by a moving vehicle.

As soon as we are faced with higher energy water conditions the upstream side of the vehicle creates a potential hazard that could result in either entrapment against the vehicle or in the siphon-like feature that is created under the car when the vehicle is sitting on a hard surface.

The downstream side of the vehicle will normally have some sort of eddy feature (unless the vehicle is pinned against a larger object) and this is often a workable area. However, if the vehicle is free to move (and water speed/level suggest that this might be possible) then anyone operating in this downstream eddy can find the vehicle moving downstream onto them!

One of the key advantages of boat/sled-based access techniques (including tethered boat options) is that we can use the boat as a working platform next to the vehicle from which we can undertake a variety of activities including stabilising/securing the vehicle and removal of the casualties from the car into the boat. Should the vehicle begin to move it is generally less consequential for boat-based rescuers operating around the car than rescuers in the water, particularly those on the downstream side of the vehicle.

Once access to the vehicle has been made we then need to put in place the next stage of the rescue as decided in the incident size up. This may involve creating anchor points on the vehicle to prevent it from moving (stabilisation) of if the decision has been made to remove the occupants without stabilising the vehicle then we need to gain access to allow for their removal. The use of
3 or 4 wading rescuers to create a wedge can be a very useful technique at this time. In addition to providing a stable set up for shallow water crossings to/from the vehicle the wedge effectively creates a mobile eddy on its downstream side. By placing the wedge immediately upstream of a door it places the door in the eddy and thus makes opening of the door and removal of the
occupants much easier.

Stabilisation

Whether or not a tactical decision is made to secure the vehicle before removing t he occupants will be a dynamic decision made at the incident based on a number of factors including those we looked at in part one:

• Water speed
• Existing and predicted water levels
• Number and condition of vehicle occupants
• Suitable bank anchors to secure the vehicle to
• Suitable anchor points on the vehicle
• Whether the vehicle is already pinned against an object that prevents it from moving further

Whilst the temptation to secure the vehicle and prevent any potential movement is understandable this needs to be balanced against the time and difficulty to provide effective stabilisation. It  might well be possible to access the vehicle and undertake a quick ‘snatch’ rescue in a much shorter time than if stabilisation is put place, thus removing the occupants from the risk area more quickly. This is particularly applicable when water levels are stable/falling, and we have small numbers of occupants in the vehicle.

Assuming a decision has been made to secure the vehicle, we need to consider:

Single or twin bank stabilisation

Being able to secure the vehicle to both banks should provide the best solution in terms of preventing movement of the vehicle but this is often difficult or even impossible to achieve, particularly in flood situations where distance to the banks may be very large. Twin bank stabilisation will also either require anchor points on two sides of the vehicle or the availability to ‘thread’ the anchor rope through the vehicle.

Whilst single bank stabilisation will not prevent all vehicle movement it will greatly determine where the vehicle should move to should it move. Care should be taken to be aware of this movement and the arc of the anchor rope during movement when operating around the vehicle. When choosing anchor points on the vehicle for a single bank stabilisation particular attention needs to be
given to ensuring the position of the anchors is such as to reduce the possibility of the loaded tether rope inducing a ‘roll over’ force on the vehicle. This is generally done by using anchors points that are as far upstream and low as possible on the vehicle and on the same side of the vehicle as the bank the tether rope is anchored to.

Stabilisation equipment

Within the discipline of swiftwater and flood rescue we give much consideration to the risks of working in and around water with ropes. Common control measures adopted include the use of floating rope and application of a ‘clean line’ principal where we try to reduce or remove any loops, knots or unnecessary snag hazards from ropes being used in and around the water. However,
when it comes to preventing a vehicle from being moved by flowing water we can be looking at very large forces and equipment strength becomes critical. Whilst we would not want to use an 11mm non-floating EN 1891 Type A semi static rope to tether a rescuer accessing a vehicle in the water it would be much better to use this type of rope to secure the vehicle rather than an 8mm
polypropylene floating throwline rope.

Also, dependent upon where we are able to obtain anchor points on the vehicle, these could present problems such as sharp metal edges, broken glass and contamination from fluids and oils. The use of plastic coated metal (wire) anchor strops is therefore often preferential to nylon slings when making anchors on vehicles or more ‘homemade solutions’ such as pre-rigged nylon slings threaded through a protective cover of plastic hose.

Anchor choice on the vehicle

Water level and vehicle design will be central in determining which parts of the vehicle we can use to create anchor points. Wheels, axles and towing eyes etc. quickly become very difficult to anchor to once they are submerged in fast moving water. The vehicle’s A, Band C-posts are prime candidates as possible anchor points but may require glass management to make them available. We also need to ensure that in our efforts to secure the vehicle from future movement we do not reduce subsequent access to the vehicle for removal of the occupants. The classic example of this is when we anchor around the B posts to secure the vehicle only to realise that in the process we have secured both front doors from being opened! If nothing else is available internal parts of the
vehicle might be usable as anchor points including the steering column, steering wheel and seatbelts. If we are able to achieve twin bank stabilisation and can pass a rope through the vehicle, either through open windows or by opening doors on both sides of the vehicle, then there is no need to find anchor points on the vehicle as the tensioned rope passing through the vehicle creates the stabilisation.

Glass management

If we need to remove or cut through glass to secure the vehicle or create access, then care needs to be taken when choosing where this is done – particularly if the glass is being water loaded.
In moving water, the water level will be higher on the upstream side of the vehicle and if existing or potential water levels are such that the water is flowing onto the upstream facing windows then every effort should be made to maintain the integrity of this glass. There is a huge difference between sitting in a vehicle with fast, cold and potentially contaminated water washing up against the
upstream windows and one where this water is flowing into the vehicle through the upstream windows.

Casualty transportation

Early consideration needs to be given as to how we intend to transport the occupants from the vehicle to dry land and this will inform decisions on whether to stabilise the vehicle or not. It is worth  noting that the techniques needed to access the vehicle by trained rescuers in appropriate personal protective equipment are not necessarily the same as needed to subsequently transport the occupants to safety. Initial access techniques such as wading or tethered swim might be utilised to allow us to secure the vehicle and start taking care of the occupants whilst we then wait for
alternative techniques to be put in place that are suitable to the needs of the occupants. E.g. tethered boats or boat/tensioned rope combinations that allow the occupants to remain dry and out of the water during the transportation phase. The options available for casualty transport are essentially the same as for initial access as outlined earlier and can similarly be split into low energy
and high energy options. Equally individual consideration of each technique is beyond the scope of this article and is best addressed practically in a Rescue from Vehicles in Water training course.

Regardless of the technique chosen, consideration needs to be given to:

Casualty PPE

Providing suitable personal protective equipment to casualties is generally limited to a personal flotation device (PFD) e.g. buoyancy aid or lifejacket and a suitable helmet. Whilst it is tempting to fit casualties into PPE as soon as possible we need to be aware of the potential entrapment hazard created by the additional buoyancy of a PFD inside a car that has moved and then rolled. It is therefore worth ensuring the vehicle is fully stabilised and/or the occupants are out of the vehicle or partially out of the vehicle (upper body out and sitting on the bottom of the window opening) before placing into a PFD.

If the occupants have already exited the vehicle and are on the roof of the vehicle then providing appropriate PPE to them is a key priority as the roof of a vehicle in the water is slippery and an easy place to fall from. Indeed, as well as providing PPE, it’s advisable to provide some support to help prevent people from falling off the vehicle which can be as quick and easy as a length of
webbing tape clipped around the steering wheel and passed up to the roof. Given the large variety of sizes and ages of potential casualties involved in rescues from vehicles in water, organisations responding to these incidents need to look at how they can provide suitable PPE to all the occupants from infants to adults. In the case of infants there are now a number of properly manufactured, sealed, floating bags or cases which can provide a most useful transport option for a baby.

Dealing with multiple casualties

In part one I highlighted some to the considerations associated with removal of occupants from the vehicle. If we have multiple occupants, then as we start to remove them we decrease the effective mass of the vehicle, which in turn can have an influence on whether the vehicle will start to float or be moved downstream by the water flow.

The two main solutions to this are:

1. Stabilise (secure) the vehicle so that the vehicle is unable to move, even if removal of some of the occupants causes a situation where, if untethered, the vehicle would move.
2. Remove all the occupants at the same time. This is normally achieved by moving the occupants one by one from inside the vehicle to the outside of the vehicle (e.g. sitting on the roof) thus maintaining the effective mass of the vehicle and then quickly removing them all from the roof via whatever transport method has been risk assessed as being most suitable.

Matching downstream backup to the casualties

Rescues from vehicles in water have the potential to be very dynamic events with changing hydrology and multiple casualties. As well as ensuring our rescue plan can adapt to changes in conditions e.g. water levels rising, we need to ensure that relevant and effective downstream back-up is in place throughout. In particular:

• Is there enough downstream back-up in place to deal with the potential number of casualties/and rescuers in and around the vehicle.
• Is the type of downstream back-up in place suitable for the rescue needs of the vehicle occupants? A member of the public who has been involved in a vehicle in water incident and now finds themselves being washed downstream from the car is going to have little or no capability to hold onto a throwline thrown to them from shore. We need to ensure as quickly as possible that we have ‘true ‘rescue capability in place as downstream back up.
• If the incident is taking place at night, as well as considering if we can provide suitable scene lighting at the rescue site, are we also considering lighting up the downstream back-up area?

The increased risk of flooding combined with continued growth of vehicle numbers on our roads would suggest there is unlikely to be a decrease in rescues from vehicles from water and floods in the future. The development in artificial whitewater courses now allows for realistic practical training to be undertaken and I would suggest that such training should be considered essential for any swiftwater and flood responders who could be called to attend such incidents.

Paul O’Sullivan is the Managing Director of R3 Safety and Rescue – specialist rescue training and equipment supply business based in North Wales, UK. He’s been delivering swiftwater and flood rescue training for over 20 years and teaching Rescues from Vehicles in Water classes since 2004. He sits on the UK’s National Fire Chief’s Council Inland Water Technical Response Group.

This article originally appeared in Technical Rescue Magazine, and is reproduced with permission from the author.

Técnicas para rescate con vehículos en el agua

Translated from the original article in English.

Introduction

En un primer artículo, nos centramos en los criterios necesarios para la toma de decisiones que impulsan la elección táctica o el tratamiento general de los rescates de vehículos en el agua. En esta ocasión, ponemos el foco en las técnicas reales que usarán los servicios de emergencia para rescatar a un herido en un vehículo en el agua.

Hay varios modelos operativos que son aplicables a este tipo de incidentes, pero los principios genéricos de rescate se aplican también a los casos con vehículos en el agua, quizás con alguna salvedad:

El modelo LAST (Localizar, Acceder, eStabilizar, Transportar) se utiliza habitualmente en los rescates relacionados con aguas rápidas de inundación y es igualmente aplicable a los rescates con vehículos en el agua. En su versión más sencilla, describe un proceso en el que localizamos el vehículo (y sus ocupantes), realizamos el acceso inicial para llegar al lugar donde se encuentra el vehículo y, a continuación, estabilizamos (aseguramos) el vehículo y/o los ocupantes antes de transportar finalmente a los ocupantes a un lugar seguro fuera del agua.

Dado que se trata de vehículos, también vale la pena considerar la aplicación de las vías asociadas a las colisiones de tráfico. El “modelo de las seis fases” para una colisión de tráfico es potencialmente aplicable a un rescate más complejo de vehículos en el agua, incluso cuando puede ser necesaria la gestión de los cristales para crear puntos de anclaje en el vehículo:

• Seguridad y evaluación de la escena
• Estabilización y acceso inicial
• Gestión de los cristales
• Creación de espacio
• Acceso total
• Inmobilización y extracción

Sin embargo, tal y como se identifica en el modelo TEMPOE desarrollado por el Jefe de Batallón Tim Rogers del Departamento de Bomberos de Charlotte, con los incidentes en aguas interiores tenemos que considerar que la elección táctica está probablemente determinada en gran medida por tres factores clave.

• Energía del agua
• Temperatura del agua
• Tiempo que el accidentado ha estado en el agua

Cualquiera que sea la técnica que utilicemos para acceder al vehículo y transportar a los heridos desde el vehículo a tierra, tiene que poder enfrentarse a la fuerza/energía del agua. Como vimos en el primer artículo, la velocidad y la profundidad del agua son factores clave para saber si un coche será arrastrado por el agua, pero también determinan si podemos acceder mediante técnicas de baja energía, como el vadeo, o si necesitamos opciones de mayor energía, como las embarcaciones o las soluciones de linea en tensión.

La temperatura del agua y el tiempo que los accidentados han estado en el agua son claves para determinar la capacidad del accidentado para ayudar en su propio rescate. Varias técnicas de rescate acuático se clasifican como “rescates condicionales”, ya que sólo funcionan a condición de que la víctima participe activamente en su rescate. Por ejemplo, el uso de una cuerda de lanzamiento desplegada desde la orilla hacia un accidentado en el techo de un coche sólo tendrá éxito si el accidentado es capaz de sujetar la cuerda durante todo el tiempo que transcurre desde que coge la cuerda hasta que es arrastrado a la orilla.

La mayoría de las víctimas que se han sumergido en agua fría y han sido sometidas a las tensiones físicas y psicológicas de estar en un vehículo en agua en movimiento. Es por ello que no se puede confiar en que participen con éxito en su propio rescate. Por ello se requieren más técnicas de rescate “real (de contacto)” en las que los rescatadores toman el control de la víctima.

Acceso a un vehículo en el agua

El acceso inicial al vehículo y a sus ocupantes suele ser necesario si queremos estabilizar el vehículo y/o realizar un rescate por contacto de los ocupantes. Existen varias técnicas para lograr este acceso inicial y podemos clasificarlas a grandes rasgos en opciones de baja energía y de alta energía. Las que se encuentran en la categoría de baja energía sólo son aplicables a condiciones de agua de baja energía.

Baja energía

• Vadeo en aguas poco profundas
• Balsa de rafting o trineo de rescate
• Nadador atado
• Amarres a 2 y 4 puntos

Alta energía

• Balsa atada desde una sola orilla
• Diagonal tensada
• Barco a motor
• Sistemas con líneas en altura (con o sin embarcación)
• Helicóptero

El examen de la aplicación y puesta en práctica de todas estas técnicas va más allá del alcance de este artículo y se aborda mejor de forma práctica en un curso de formación de rescate con vehículos en el agua. Afortunadamente, el crecimiento de los cursos de aguas bravas, ha visto un crecimiento similar en la disponibilidad de cursos de formación de calidad realista sobre este tema.

La mayoría de las técnicas mencionadas tienen en común la cuestión de hacia dónde apuntamos cuando hacemos el acceso inicial al vehículo. Los datos anecdóticos sugieren que muchos incidentes con vehículos en el agua se producen en condiciones de energía muy baja/flujo lento y, por lo tanto, hay un riesgo insignificante de que el vehículo se mueva y se pueda acceder a cualquier punto alrededor del vehículo. De hecho, es probable que haya un mayor riesgo para los intervinientes y las víctimas derivados de los sifones ocultos bajo el agua, como la falta de tapa del alcantarillado debido a presión generada por la inundación, o la posibilidad de ser arrastrados por otro vehículo en movimiento.

En cuanto nos enfrentamos a condiciones de agua de mayor energía, la parte aguas arriba del vehículo presenta un peligro potencial de atrapamiento contra el vehículo y cuando el vehículo está asentado sobre una superficie dura crea un sifón entre las ruedas y el morro.

Aguas abajo del vehículo normalmente se generará una contracorriente siendo esta zona un área potencialmente viable. Sin embargo, si el vehículo tiene libertad para moverse (y la velocidad y el nivel del agua sugieren que esto podría pasar), cualquier persona que opere en la contracorriente aguas abajo del vehículo puede verse con el vehículo moviéndose hacia el.

Una de las principales ventajas de las técnicas de acceso basadas en embarcaciones o trineos (incluidas las opciones de embarcaciones atadas) es que podemos utilizar la embarcación como plataforma de trabajo junto al vehículo, desde la que podemos llevar a cabo diversas actividades, como estabilizar o asegurar el vehículo y sacar a los heridos del coche a la embarcación. Si el vehículo comienza a moverse, por lo general es menos grave para los rescatadores que trabajan en la embarcación alrededor del coche que para los que están en el agua, especialmente los que están aguas abajo del vehículo.

Una vez que se ha accedido al vehículo, hay que poner en marcha la siguiente fase del rescate, tal y como se decidió en la evaluación del incidente. Esto puede implicar la creación de puntos de anclaje en el vehículo para evitar que se mueva (estabilización) o, si se ha tomado la decisión de sacar a los ocupantes sin estabilizar el vehículo, entonces tenemos que acceder para permitir su extracción. El uso de 3 o 4 rescatistas de vadeo para crear una cuña puede ser una técnica muy útil para generar un espacio de trabajo para por ejemplo abrir una puerta. Además de proporcionar una configuración estable para cruzar por aguas poco profundas hacia la orilla desde el vehículo. La cuña crea una contracorriente efectiva modificable aguas abajo de si misma. Al colocar la cuña inmediatamente aguas arriba de una puerta, facilita la apertura de la puerta y la extracción de los ocupantes.

Estabilizacion de un vehículo en el agua

La decisión táctica de asegurar el vehículo antes de retirar a los ocupantes será una decisión dinámica tomada en el incidente en función de una serie de factores, entre los que se incluyen los que hemos visto en la primera parte:

• Velocidad del agua
• Niveles de agua existentes y previstos
• Número y estado de los ocupantes del vehículo
• Anclajes adecuados en la orilla para asegurar el vehículo
• Puntos de anclaje adecuados en el vehículo
• Si el vehículo ya está inmovilizado contra un objeto que le impida seguir moviéndose

Aunque es comprensible la tentación de asegurar el vehículo y evitar cualquier movimiento potencial, hay que pensar en el tiempo y la dificultad de proporcionar una estabilización efectiva. Podría ser posible acceder al vehículo y llevar a cabo un rescate rápido en mucho menos tiempo que si se estabiliza, sacando así a los ocupantes de la zona de riesgo más rápido. Esto es particularmente aplicable cuando los niveles de agua son estables o bajan, y tenemos pocos ocupantes en el vehículo.

Asumiendo que se ha tomado la decisión de estabilizar el vehículo, debemos considerar:

Estabilizacion de una o dos orillas

Poder asegurar el vehículo a ambas orillas debería ser la mejor solución para evitar el movimiento del vehículo, pero a menudo esto es difícil o incluso imposible de conseguir, especialmente en situaciones de inundación donde la distancia a las orillas puede ser muy grande. La estabilización de dos orillas también requerirá puntos de anclaje en dos lados del vehículo o la disponibilidad de “enhebrar” el vehículo con la cuerda de anclaje.

Aunque la estabilización de una sola orilla no evitará todo el movimiento del vehículo, sí determinará en gran medida hacia dónde se va a mover el vehículo en caso de hacerlo. Es muy importante tener en cuenta este movimiento y el péndulo que generará la cuerda con la que hemos hecho el anclaje, a la hora de trabajar cerca del vehículo. Al elegir los puntos de anclaje en el vehículo para la estabilización de una orilla, se debe prestar especial atención a la posición de los anclajes, para reducir la posibilidad de que la cuerda de sujeción cargada provoque una fuerza por la cual ayude al vehículo a volcar. Esto se hace generalmente utilizando puntos de anclaje lo más aguas arriba posible y lo más en la parte baja del vehículo posible y además en el mismo lado del vehículo que la orilla a la que se ancla la cuerda de sujeción.

Material de estabilización

Dentro de la disciplina de rescate en aguas rápidas e inundaciones, tenemos muy en cuenta los riesgos de trabajar con cuerdas dentro y cerca del agua. Entre las medidas de control que se adoptan habitualmente se encuentran el uso de cuerdas flotantes y la aplicación del principio de “línea limpia”, con el que intentamos reducir o eliminar cualquier lazo, nudo o riesgo de enganche innecesario de las cuerdas que se utilizan en el agua o en sus alrededores. Sin embargo, cuando se trata de evitar que un vehículo se mueva por la fuerza del agua, podemos estar buscando fuerzas muy grandes y la fuerza del material se vuelve crítica. Aunque difiera de los principios o medidas de control nombradas anteriormente, es preferible estabilizar con una cuerda no flotante EN 1891 Tipo A de 11 mm, en lugar de una cuerda flotante de 8 mm de polipropileno. No obstante nunca ataríamos a un rescatador que accede a un vehículo en el agua con este tipo de cuerda (EN1891).

Además, dependiendo de dónde podamos obtener los puntos de anclaje en el vehículo, éstos podrían presentar problemas como bordes metálicos afilados, cristales rotos y contaminación por fluidos y aceites. Por lo tanto, el uso de cabos de anclaje de metal (alambre) recubiertos de plástico suele ser lo más adecuado. También existen otras soluciones más “caseras”, como eslingas de nailon anilladas y enhebradas a través de una cubierta protectora de manguera.

Elección de anclajes en el vehículo

El nivel del agua y el diseño del vehículo serán fundamentales para determinar qué partes del vehículo podemos utilizar para crear puntos de anclaje. Las ruedas, los ejes y los ganchos de remolque, etc., se vuelven muy difíciles de anclar una vez que se sumergen en el agua. Los postes o pilares A y C del vehículo son los principales candidatos como posibles puntos de anclaje, pero puede ser necesario gestionar el vidrio para que estén disponibles.

También debemos considerar que con nuestro trabajo de estabilización reducimos el espacio para posteriormente sacar a los ocupantes. El ejemplo clásico de esto es cuando estabilizamos anclando los postes B, sin darnos cuenta de que hemos bloqueado la puerta, no pudiéndola abrir después.

Si no hay nada más disponible, las partes internas del vehículo pueden ser utilizadas como puntos de anclaje, incluyendo la columna de dirección, el volante y los cinturones de seguridad. Si podemos conseguir la estabilización de las dos orillas y podemos pasar una cuerda a través del vehículo, ya sea a través de las ventanas abiertas o abriendo las puertas de ambos lados del vehículo, entonces no hay necesidad de encontrar puntos de anclaje en el vehículo, ya que la cuerda tensada que pasa a través del vehículo crea la estabilización.

Gestión de los cristales

Si tenemos que quitar o cortar el cristal para asegurar el vehículo o crear un acceso, hay que tener cuidado con elegir dónde se hace, especialmente si el cristal está cubierto de agua.
En aguas rápidas, sucede que la parte del vehículo que quede aguas arriba sufrirá una presión del agua mayor, motivando una altura superior del agua que en el lado opuesto, debido a la presión de la corriente. En estos casos en los que la corriente llega o pueda llegar al cristal, se debe mantener el cristal intacto en la medida de los posible, para no perder el parapeto que supone el cristal a la hora de trabajar dentro del coche. Hay una gran diferencia entre sentarse en un vehículo protegido, frente a un vehículo con el agua fluyendo a través del mismo.

Transporte de los ocupantes

Hay que considerar con antelación cómo se pretende transportar a los ocupantes desde el vehículo a tierra firme, y esto nos dará claves a la hora de tomar decisiones sobre si se debe estabilizar el vehículo o no. Hay que tener en cuenta que las técnicas necesarias para el acceso al vehículo por parte de rescatadores formados y con el EPI adecuado no son necesariamente las mismas que se pueden usar para transportar posteriormente a los ocupantes a un lugar seguro. Las técnicas de acceso inicial, como el vadeo o la natación atada, podrían utilizarse para acceder para asegurar el vehículo y empezar a atender a los ocupantes mientras se ponen en marcha otras técnicas que se adapten a las necesidades de los ocupantes.

Un ejemplo de técnicas alternativas pueden ser las embarcaciones amarradas o embarcación con cuerda en altura que permitan a los ocupantes permanecer fuera del agua durante la fase de transporte. Las opciones disponibles para el transporte de víctimas son esencialmente las mismas que para el acceso inicial, como se ha indicado anteriormente, y pueden dividirse de forma similar en opciones de baja energía y de alta energía. La consideración individual de cada técnica va más allá del alcance de este artículo y se aborda mejor de forma práctica en un curso de formación de rescate con vehículos en el agua.

Independientemente de la técnica elegida, hay que tener en cuenta lo siguiente:

EPI – equipo de protección individual para los ocupantes

Proporcionar un equipo de protección individual adecuado a las víctimas se limita generalmente a un CAF (Chaleco de Ayuda a la Flotación) y un casco adecuado. Aunque es tentador poner a los heridos el EPI lo antes posible, debemos ser conscientes del riesgo potencial de atrapamiento creado por la flotabilidad adicional de un EPI dentro de un coche que se ha movido y luego ha rodado. Por lo tanto, vale la pena asegurarse de que el vehículo está totalmente estabilizado y/o que los ocupantes pueden salir con el EPI puesto. Si vemos que debido al volumen que ocupa un cuerpo la víctima no puede salir del vehículo, hay que valorar que el ocupante esté fuera o parcialmente fuera del vehículo (la parte superior del cuerpo fuera y sentado en la parte inferior de la apertura de la ventana) antes de colocarle un CAF.

Si los ocupantes ya han salido del vehículo y se encuentran en el techo del mismo, proporcionarles el EPI adecuado es una prioridad, ya que el techo de un vehículo en el agua es resbaladizo, un lugar desde el cual es fácil caer. De hecho, además de proporcionar el EPI, es aconsejable proporcionar algún tipo de apoyo para ayudar a evitar que las personas se resbalen del vehículo, por ejemplo una cinta plana (flip Line) enganchada alrededor a volante y pasada perpendicularmente por el techo.

Teniendo en cuenta la gran variedad de las edades  y por consiguiente los tamaños de las víctimas involucradas en los rescates de vehículos en el agua, las los servicios de emergencia deben estudiar cómo pueden proporcionar un EPI adecuado a todos los ocupantes, desde bebés hasta adultos. En el caso de los bebés, existen ahora una serie de bolsas estancas o y camillas flotantes debidamente fabricadas y selladas que pueden constituir una opción de transporte muy útil para un bebé.

Como hacer frente a múltiples víctimas

En la primera parte destacamos algunas de las consideraciones asociadas a la retirada de los ocupantes del vehículo. Si tenemos múltiples ocupantes, a medida que empezamos a retirarlos disminuimos la masa efectiva del vehículo, lo que a su vez puede influir en que el vehículo empiece a flotar o sea desplazado por la corriente de agua.

Las dos soluciones principales para esto son:

1. Estabilizar el vehículo para que no pueda moverse, para que la retirada de algunos de los ocupantes no provoque que el vehículo se mueva.
2. Retirar a todos los ocupantes al mismo tiempo. Esto se consigue normalmente trasladando a los ocupantes uno a uno desde el interior del vehículo hacia el exterior del mismo (por ejemplo, sentarlos en el techo), manteniendo así la masa efectiva del vehículo, y sacándolos después rápidamente a todos del techo mediante el método de transporte que se haya elegido como el más adecuado en función del riesgo y eficacia.

Adecuación de la seguridad y equipo sos aguas abajo del escenario

Los rescates de vehículos en el agua tienen el potencial de ser eventos muy dinámicos con una hidrología cambiante y las múltiples víctimas potenciales. Además de garantizar que nuestro plan de rescate se adapte a los cambios en las condiciones, por ejemplo, a la subida del nivel del agua, tenemos que asegurarnos de que el apoyo aguas abajo sea pertinente y eficaz en todo momento. En particular:

• ¿Hay suficientes refuerzos aguas abajo para hacer frente al número potencial de víctimas (ocupantes y rescatadores que potencialmente pueden convertirse en víctimas) que hay en el vehículo y sus alrededores?
• ¿El apoyo que se ha preparado está situado en el lugar adecuado para el rescate? Un ocupantes de un vehículo  involucrado en un accidente en el agua y que ahora se encuentra arrastrado por la corriente desde el coche, va a tener poca o ninguna capacidad de agarrarse a una cuerda lanzada desde la orilla. Debemos cerciorarnos de que el equipo SOS realmente tiene la capacidad de realizar un rescate ¨real¨ (de contacto) para esas víctimas con frio, y exhaustas.
• Si el incidente tiene lugar por la noche, además de considerar si podemos proporcionar una iluminación adecuada en el lugar del rescate, ¿estamos considerando la posibilidad de iluminar la zona de seguridad aguas abajo?

El aumento del riesgo de inundación combinado con el continuo crecimiento del número de vehículos en nuestras carreteras sugiere que es poco probable que haya una disminución de los rescates de vehículos en el agua y las inundaciones en el futuro. El desarrollo de los cursos de rescate con vehículos en aguas rápidas permite ahora llevar a cabo una formación práctica realista y sugeriría que dicha formación debería considerarse esencial para cualquier rescatador de aguas rápidas e inundaciones que pudiera ser llamado a asistir a tales incidentes.

Artículo fundamentado en ‘Tactical choices for rescues from vehicles in water’ originalmente adaptado por Paul O’Sullivan Director Gerente de R3 Safety and Rescue empresa especializada en la formación y el suministro de equipos de rescate con sede en el norte de Gales, Reino Unido. El artículo apareció originalmente en la revista Technical Rescue y se reproduce con permiso del autor.

This article was originally written in English, and has been translated by Fermin Perez Larrea of River Guru.

Become a Training Provider

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Training provider requirements

A Rescue 3 Training Provider can either be a commercial training provider (delivering to other organisations on a commercial basis), or an agency training provider (delivering in-house to their own employees). You can contact the Rescue 3 Europe office to discuss the options, and to request an application pack. We can help you through the application process and discuss your individual needs.

Once the application form has been completed, and all criteria have been met, we will arrange a site visit. Once the site visit has been successfully completed, and the relevant contracts have been signed, you will be a Rescue 3 training provider. You will be able to run your chosen Rescue 3 courses, using appropriately qualified instructors, and provide student course packs ordered through the training provider database. You will also have access to full training records of your staff and those you have trained.

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Tactical choices for rescues from vehicles in water

Introduction

Rescue from vehicles in water continues to be all too common during flood events and vehicles trapped in moving water can present great risks not only to their occupants but also to those undertaking the rescue.

Thankfully, the increase in the number of artificial white water courses has seen it becoming much easier to deliver realistic yet controlled training in this area. I can recall back in 2004 working with Martin Bills from Nottinghamshire Fire and Rescue Service and Tim Rogers from Charlotte Fire Department in the USA, on what was probably the UK’s first Rescues from Vehicles in Water workshop at the Tees Barrage Whitewater Course. Since then, many hundreds of responders have attended such workshops and the lessons learnt and techniques developed in these courses have been put to good use in real rescues on many occasions.

In this article, I will focus on the decision-making criteria that will drive tactical choice at these incidents. In the second article, I will look at techniques for performing rescues from vehicles in water.

Vehicle behaviour in water

There is no shortage of footage on YouTube etc showing people getting the car-versus-water equation wrong. However, these videos do confirm some of the key aspects of vehicle behaviour in
moving water, namely:

• Vehicles will naturally pivot around the heaviest point (normally the engine). Generally, this means they will tend to move to facing upstream – unless it’s a VW Beetle!
• Vehicles on hard surfaces under moving water that end up sideways to the current tend to roll over.

We can generally split rescues from vehicles in water into two categories:

1. Low energy shallow water where the vehicle has not moved – these are very common and vehicles are usually accessible using shallow water wading techniques.
2. Higher energy water where the vehicle has already moved (and possibly rolled). These can present much more complex rescue problems because of the higher energy water, potential damage to the vehicle and potential for t he vehicle to be trapped against an object restricting access to and egress from the vehicle.

Floating and/or moving?

One of the key considerations for anyone faced with undertaking a rescue from a vehicle in water is whether the vehicle is moving and/or floating and if not whether this could be the case in the
near future or during the course of the rescue?

The difference between the weight of the vehicle, its contents and occupants and the buoyancy force created by the vehicle displacing water will determine if the vehicle floats. Similarly, if the force
of any moving water acting upon the vehicle is greater than the frictional force between the vehicle and the surface it ‘s resting on then the vehicle will be moved by the flowing water.

Thus, depending upon water speed (if any) and depth of water, a vehicle could remain in situ, it could float but not be moved or it could be be moved downstream without floating.

Water level considerations

Given that water speed and water depth are two of the key factors that will determine whether a vehicle in water will move, these are priority considerations when undertaking rescues for vehicles in water. In particular, we need to consider the current water level and whether this is likely to increase/decrease. As soon as possible we need to be gauging the water level both at the rescue scene and where any upstream spotters have been located. This can be as simple as poking a stick into the riverbank to mark the current water level. Whilst we might anticipate water level rises and falls due to recent and current rainfall, snow thaw etc. by actually marking the water level as soon as possible we can quickly determine if there are any significant water level rises/falls and these in t rn will inform our decision making.

For example, faced with a car in flood water which has not yet moved, information from our on-site measurement that the water level is dropping will confirm that the vehicle is unlikely to move and may reduce the need to secure the vehicle prior to undertaking any rescue activities. Equally, faced with the same scenario but receiving confirmation from our measurement that water levels are increasing might confirm the need to secure the vehicle as a priority to prevent later movement as water levels rise. By training our first response crews on the importance of early water level
measurement we can provide critical risk information to specialist water rescue crews as they arrive on scene. There are other factors that affect a vehicle’s effective weight and buoyancy which in turn can determine if a vehicle will float and or move and these will be looked at later.

Are the occupants wet?

As we’ve seen above, having some knowledge on potential water level changes helps up determine priorities and actions. Equally information on the state of the vehicles occupants is
vitally important. Many factors such as the vehicle design and condition will determine if the occupants are still pretty much dry or whether they are sitting in cold water. If we have no vehicle movement worries and dry occupants we may have the time to apply techniques that allow for the occupants to be removed from the vehicle without getting them wet e.g. use of sled and boats. However, if the occupants are sitting in cold water and are already wet then removing them from the cooling effects of this water is time-critical especially if they are elderly or children or there are
medical considerations.

Paul O’Sullivan is the Managing Director of R3 Safety and Rescue – specialist rescue training and equipment supply business based in North Wales, UK. He’s been delivering swiftwater and flood rescue training for over 20 years and teaching Rescues from Vehicles in Water classes since 2004. He sits on the UK’s National Fire Chief’s Council Inland Water Technical Response Group.

This article originally appeared in Technical Rescue Magazine, and is reproduced with permission from the author.

Opciones tácticas para rescate con vehículos en agua

Translated from the original article in English.

Introduccion a rescate con vehículos en el agua

El rescate con vehículos en el agua es una práctica muy común durante las inundaciones y los vehículos localizados dentro de las aguas en movimiento pueden presentar grandes riesgos, no sólo para sus ocupantes sino también para los que realizan el rescate.

Afortunadamente los servicios de emergencia cada vez están más concienciados y se unen a la formación de rescate en aguas rápidas, y en muchas ocasiones en la tecnificación con vehículo en el agua que se imparte desde Rescue 3 Europe. En España recientemente se han realizado unas jornadas de Rescate en Accidentes de Trafico con una exhibición de rescate con vehículo en el agua en Granada en su 200 aniversario. También se llevan haciendo cursos prácticos más de 4 años, introducido vehículos en Murillo de Gallego y Benamejí para la formación de servicios de emergencia de toda España.

En este artículo, nos centramos en los criterios que debemos manejar para la toma de decisiones que impulsarán la elección táctica en estos incidentes. En un segundo artículo (Técnicas para rescate con vehículos en el agua), analizaremos las técnicas para realizar rescates con vehículos en el agua.

Comportamiento del vehículo en el agua

No faltan vídeos en YouTube, etc., que muestran a personas que se equivocan en la ecuación coche-agua. Sin embargo, estos vídeos confirman algunos de los aspectos clave del comportamiento de los vehículos en aguas rápidas, a saber:

• Los vehículos pivotarán naturalmente alrededor del punto más pesado (normalmente el motor). Por lo general, esto significa que tenderán a moverse hacia la corriente, ¡a menos que se trate de un VW Escarabajo o un autobús con el motor en la parte trasera!
• Los vehículos que se encuentran en superficies duras como cemento o brea, tienden a ponerse de lado a la corriente y a volcar.

En general, podemos dividir los rescates de vehículos en el agua en dos categorías:

1. Aguas poco profundas de baja energía donde el vehículo no se ha movido – son muy comunes y los vehículos suelen ser accesibles utilizando técnicas de vadeo en aguas poco profundas.
2. Aguas de mayor energía en las que el vehículo ya se ha movido (y posiblemente haya rodado). Estas pueden presentar problemas de rescate mucho más complejos debido a la mayor energía del agua, los posibles daños al vehículo y la posibilidad de que el vehículo quede atrapado contra un objeto que restrinja el acceso y la salida del vehículo.

Vehiculo flotante y/o en movimiento

Una de las consideraciones clave para cualquier persona que se enfrente a un rescate de un vehículo en el agua, es si el vehículo se está moviendo y/o flotando y, si esto no es así, si podría ocurrir en un futuro próximo o durante el transcurso de la operación.
La diferencia entre el peso del vehículo incluyendo su contenido (ocupantes), con la fuerza de flotación creada por el vehículo al desplazarse por el agua, determinará la flotabilidad del mismo. Del mismo modo, si la fuerza del agua en movimiento que actúa sobre el vehículo, es mayor que la fuerza de fricción generada por el vehículo en la superficie sobre la que descansa, el vehículo tenderá a moverse empujado por el fluir del agua.
Por lo tanto, dependiendo de la velocidad del agua (si la hay) y de la profundidad del agua, un vehículo podría permanecer in situ, podría flotar pero no moverse o podría ser movido río abajo sin flotar.

Consideraciones sobre el nivel del agua

Dado que la velocidad y la profundidad del agua son dos de los factores clave que determinan si un vehículo se puede mover, serán dos consideraciones prioritarias a la hora de realizar rescates de vehículos en el agua. En particular, debemos tener en cuenta el nivel de agua en el momento del rescate y si es probable que suba o baje. Tan pronto como sea posible, debemos medir el nivel del agua tanto en el lugar del rescate como en el lugar donde se encuentran los observadores aguas arriba. Esto puede ser tan sencillo como clavar un palo en la orilla del río para marcar el nivel de agua. Aunque podemos anticipar las subidas y bajadas de nivel mediante los Sistemas Automáticos de Información Hidrológica (SAIH) que cada cuenca dispone. Allí podemos ver el caudal en tiempo real, la acumulación de precipitación, el nivel de los embalses etc. Si conocemos el nivel del agua con antelación, podemos determinar rápidamente si hay subidas o bajadas significativas, lo que nos ayudará a tomar decisiones.
Por ejemplo, ante un coche inundado que aún no se ha movido, tener información de que el nivel del agua está bajando, confirmará que es poco probable que el vehículo se mueva y puede reducir la necesidad de estabilizar el vehículo antes de emprender cualquier actividad de rescate. Del mismo modo, si nos enfrentamos a la misma situación pero recibimos la confirmación de nuestras mediciones de que el nivel del agua está aumentando, podría confirmar la necesidad de estabilizar el vehículo como prioridad, para evitar que posteriormente se mueva cuando el nivel del agua suba. Es importante formar a los servicios de emergencia, sobre todo aquellos que vayan a llegar inicialmente al incidente de la importancia de saber las tendencias en el ascenso y descenso del caudal. Ello nos dará información crítica sobre el riesgo que tendrán los equipos de rescate acuático cuando lleguen al lugar de los hechos.

Hay otros factores que afectan al peso efectivo de un vehículo y a su flotabilidad, que a su vez pueden determinar si un vehículo flotará o se moverá.

¿Están mojados los ocupantes?

Como hemos visto anteriormente, tener algún conocimiento sobre los posibles cambios en el nivel del agua ayuda a determinar las prioridades y las acciones. Igualmente, la información sobre el estado de los ocupantes del vehículo es de vital importancia. Muchos factores, como el diseño y el estado del vehículo, determinarán si los ocupantes siguen prácticamente secos o si están sentados en agua fría. Si el vehículo tiende a no moverse y los ocupantes están secos, podemos tener tiempo para aplicar técnicas que permitan sacar a los ocupantes del vehículo sin mojarse, por ejemplo, usando trineos de rescate o rafts. Sin embargo, si los ocupantes están sentados en agua fría y ya están mojados, sacarles del frío del agua es una cuestión prioritaria, especialmente si son ancianos o niños o hay consideraciones médicas que así lo requerirán.

Artículo fundamentado en ‘Tactical choices for rescues from vehicles in water’ originalmente adaptado por Paul O’Sullivan Director Gerente de R3 Safety and Rescue empresa especializada en la formación y el suministro de equipos de rescate con sede en el norte de Gales, Reino Unido. El artículo apareció originalmente en la revista Technical Rescue y se reproduce con permiso del autor.

This article was originally written in English, and has been translated by Fermin Perez Larrea of River Guru.

Weirs and Low Head Dams – A Guide For Rescuers – Part 1

Weirs are also called low head dams and barrages. They are an artificial obstruction in a channel that results in elevated upstream water level for some if not all flow conditions. This definition is very benign so why are they of particular interest to us in the swiftwater and flood rescue community?

Whilst the definition focuses on the weir’s ability to raise the water level on the upstream side of the weir, it’s what happens on the downstream side that is normally of more concern to us.

As water flows over the face of the weir there is the potential to create a ‘re-circulation’ feature on the downstream side when surface water is pulled back into the face of the weir. Whilst we commonly have two names (weir and low head dam) to describe these structures, there are many more words used to describe this re-circulation including hydraulic, hydraulic jump, hole, stopper etc. Depending on the strength of the recirculation it can have the ability to trap floating debris, objects, equipment and potentially people.

The same re-circulation features can be found on the downstream side of natural river features and these can also provide significant risk, however being natural features there is often a point of weakness that allows trapped objects/people to be flushed out. With man-made weirs we have the potential to combine the ability to generate very strong and deep recirculation with the uniform, smooth surfaces of a man-made structure which may not have any points of weakness in the recirculation, thus making it difficult if not impossible for anyone who becomes trapped in the re-circulation to escape.

That said not every weir creates dangerous re-circulation features and even those that do, may not have these features present at all water levels. For example, consider a weir that at medium water levels has a significant re-circulation. If water levels are reduced (summer flows, after periods of low rainfall etc) then the amount of water flowing over the weir could be significantly reduced which in turn could reduce the size and strength of the re-circulation. Equally, when the river level rises, and we are in high flow/flood conditions, there is potential for water flowing over the weir to effectively ‘drown’ the structure so that it disappears under the water and the surface recirculation disappears. From this example we can see that the level of hazard and risk created by a weir can vary with water levels so if we want to risk assess a weir, we need to do this at a range of water flows to gain a complete profile. I will look at weir risk assessment in more detail in part two of this feature.

Weir hydrology

An understanding of the basic hydrology of weirs will allow us to appreciate the nature of the re-circulation hazard they can present. As water falls over the face of the weir it will create a low-pressure effect which causes the surface water on the downstream side of the weir to flow upstream towards the weir face. This is the same kind of effect that creates the upstream flow of water in an eddy as the main current flows past the obstacle creating the eddy.

This surface water flowing back upstream towards the weir face is known as ‘tow back’ and if this is of sufficient size and strength can cause floating objects to be trapped in the weir.

The main water flow over the weir face will flow to the base of the weir and whilst some will continue flowing downstream, much of this water can flow up to the surface on the downstream side of the weir creating a distinct ‘boil line’ where it reappears on the surface . Some of the water returning to the surface at the boil line will feed into the surface tow back flowing upstream to the weir face, whilst the remainder will move downstream from the boil line and is commonly called the ‘out wash’.

How powerful the recirculation hazard will be on any given weir will be a result of the relative strengths and depths of the various waterflows as described above and these will change relative to the amount of water flowing over the weir.

The design of the channel bed at the base of the weir is one of the key determining features as to whether a weir will have a significant re-circulation hazard. Many modern weir designs will have a ‘stilling basin’ on the downstream side of the weir face. This is a trough like feature which has the effect of increasing the amount of water flowing to the surface at the boil line and the size and extent of the tow back. Natural ‘Stilling basins’ can be created by the depositing of stones and boulders a short distance after the weir but man-made basins can have an artificially long apron making it possible for the boil line to be a significant distance downstream of the weir face with the surface tow back flowing upstream from the boil line to the face of the weir.

Why do we have weirs?

Weirs have been constructed for hundreds if not thousands of years and for a wide variety of reasons. The raised level of water on the upstream side of the weir are commonly used for ensuring water availability to divert flows into locks and mills etc. More recently weirs are commonly constructed for channel stabilization/erosion control, water flow measurement and aiding fish passage.

Steeper channels with increased water velocity have great ability to erode the banks and channel bed. By constructing a number of weirs, it is possible to create a series of engineered drops with low energy water between the weirs thus reducing the potential for channel erosion.

Weir risks

To the unaware, many weirs can appear very benign structures. The combination of slow-moving flat water above the weir, a smooth weir face and relatively slow-moving water downstream of the weir can cause many people to underestimate the power and retentiveness of the weir. There are unfortunately numerous examples of where people have entered weirs due to a lack of understanding of the risk they present often with tragic consequences. Particular examples I am aware of include members of the public jumping into weirs in an effort to rescue dogs which entered the weir to fetch floating debris, commercial rafts which failed to make the ‘take-out’ eddy above the weir and water rescue teams in powerboats accidentally crossing the boil line and being taken into the weir by tow back both in training exercises and rescue call outs.

As rescuers called to a person trapped in a weir, much of the weir risk assessment has been done for you by the victim. The very fact that they are trapped in the weir tells us a lot about the nature of the weir and the risks it presents to us as rescuers. We have the same set of rescue techniques available to us as for other swiftwater and flood rescues, but we need to decide if they are applicable to the weir we are faced with and if so whether we need to adapt them to this purpose.

Weir rescue options

Bank-based reach and throw options

We can separate the variety of rescue techniques available to swiftwater and flood rescuers into two categories; conditional rescues and true rescues.

• A ‘conditional rescue‘ technique is one that requires the victim to actively take part in their rescue and if they fail to do so the rescue will not work e.g. throwing a throwline to a casualty in the water is totally conditional upon their ability to hold onto the rope that has been thrown to them. If they are unable or unwilling to do this the rescue fails regard less of how good the rescuer is at throwing throwlines!

• A ‘true rescue‘ technique does not require any input from the casualty. Thus, the success of a tethered swim rescue is all about the ability and skill of the rescue team and does not rely on the casualty’s input.

All the variety of bank-based reach and throw options (eg. throwlines, reach poles, inflated fire hose) are conditional rescues and rely on the victim’s ability to hold onto the rope etc. This can be very difficult to do when trapped in a weir and therefore other ‘true’ rescue options will probably need to be utilised. That said, there are great benefits to throwing floating objects to anyone  trapped in a weir to hold onto as the added buoyancy they provide will help them stay at the surface.

Downstream backup

Even though the focus is on a person trapped in the weir we need to ensure that we are still putting in as effective downstream backup as possible. It is possible that the trapped person might be washed out of the weir and we need to be able to rescue them if this happens. Having just spent time trapped in the weir it is very unlikely that they will be able to assist in their own rescue, so we really need downstream back up to be a ‘true’ rescue option – contact swim, boat etc

Adapting tethered boat techniques to weirs

When operating around weirs we need to appreciate how the current forces and risks might have altered as compared to a normal channel-based rescue. Tethered boat rescues are a potential choice for weir rescues whether we’re using the tether lines to keep the boat downstream of the boil line or to allow us to hold the boat over the boil line and in the tow back. When tethering boats in a normal channel we look to use multiple points connected with a load distributing anchor system on the boat for each upstream tether rope as they will see the greatest load and we do not want one of the lines to fail. As the downstream tether ropes will see less loading, we will commonly just clip these to a single attachment on the boat as failure here would be less consequential. However, when working on the downstream side of a weir it is now the downstream lines that are critical in stopping the boat being moved upstream by the tow back. Consequently, we need to now rig these, so they are attached to at least two points on the boat with a load distributing anchor.

Boat on a highline systems

The ability to control boat position and deal with larger water forces that we get from boat-on-a-highline systems are ideally suited to some weirs. These systems need to be pre-planned and trained for or else they are slow to set up and complicated to operate smoothly.

Commonly, boat-on-a-highline systems are rigged with the trackline on the upstream side so that the main control rope to the boat (reeving line) is used to control/move the boat against the river flow. With weirs it is not uncommon for the force of the tow back to be greater than the river flow both upstream and downstream of the weir so consideration should be given to either positioning the track line downstream of the weir rather than on the upstream side. BOAH systems can be quite complex to set up, rescuer-intensive and requires excel lent communications between all rescuers. The main control/reeving rope can be used to control the boat from entering the weir or to hold the boat on the tow back and means it is easier to recover the boat from the weir. Downstream track lines are also of particular use on weirs with high vertical faces.

Once the distance across the weir becomes too great to effectively manage ropes then tethered boat, including boat on a highline systems are no longer suitable. Rescues using powered boat and helicopters are still potential options to consider.

Powered boat rescues

Operating around weirs in powered boats requires a high level of experience and skill from the boat operators and an understanding of the hazard the weir can present. There are numerous examples of crews crossing the boil line (both intentionally and unintentionally) from the downstream side of a weir without realising the effect this would have on their boat, only to find the boat being carried into the face of the weir by the tow back and potentially capsized. Propellers are much less effective in the aerated water of the tow back so the ability to use the engines drive to avoid the weir once over the boil line is greatly diminished.

Powerboats operating downstream of a weir to put in place effective ‘true’ downstream back up should anyone be washed out of the weir are highly beneficial if water conditions allow for their use. However, the closer we operate to the weir the greater the risk of entering the weir. There are techniques for ‘tandem’ boat operations where boats are connected by rope with the idea being that the downstream boat can prevent the upstream boat from being carried over the boil line into the weir. Such techniques require extensive levels of relevant training and as well as being highly trained in their use, if boat crews are to use these techniques, they need to ensure the potential benefits are in proportion to the operational risks.

Helicopters and cranes and hydraulic ladders

Helicopters have the most obvious potential to position a rescuer immediately above the tow back of the weir so the rescuer can make contact with the victim in the weir and either lift them from the weir or pull them through the water to the downstream of the boil line. The same might be true of a nearby construction as was seen on the Des Moines River in Iowa, USA in 2009. It may also be true of fire service hydraulic ladder/platforms used for high-rise incidents and fires. Some have the ability to operate at very low and even reverse angles but such operations require a very clear understanding of the load capabilities which diminish massively with decreased angle and greater extension. There are many photos and YouTube videos showing how easy it is to overload a boom arm, whether it be a crane or an HP/ALP so such measures will normally be a last resort. Nevertheless, as soon as a report of a person trapped in a weir is received by the emergency services, in addition to the water rescue team(s), rescue helicopter and pre-approved hydraulic ladder/platform deployment should be considered if available. If, on arrival of the rescue teams at the weir they can deal with the situation, the larger assets can then be stood down. If decisions on alternative tasking are left until arrival on scene or after failure of initial rescue attempts, then launch and travel time for the helicopter/large vehicle may mean it arrives on scene too late.

Relevant training

As seen above, the full range of swiftwater rescue techniques are potentially applicable to weir rescues, but their use needs to be determined by a process of risk/benefit assessment. Whilst there are weirs where it would be suitable to perform a contact swim rescue or place a raft over the boil line to perform a rescue, there are others where such options would result in an unacceptable level of risk to the rescuers. Weir rescue needs to be pre-planned for and through this process, we need to ensure that we have the required capability, personnel, equipment and training to carry out the rescue techniques most appropriate to that weir. The time to determine which techniques are appropriate is on a training session following a suitable risk assessment, as opposed to waiting for an incident to occur at the weir and trying to work out what to do at that point. The ability to risk assess the hazard of a weir is essential if we are to conduct training and operational rescues from weirs, and I will look at this process in part two.

Paul O’Sullivan is the Managing Director of R3 Safety and Rescue – specialist rescue training and equipment supply business based in North Wales, UK. He’s been delivering swiftwater and flood rescue training for over 20 years and teaching Rescues from Vehicles in Water classes since 2004. He sits on the UK’s National Fire Chief’s Council Inland Water Technical Response Group.

This article originally appeared in Technical Rescue Magazine, and is reproduced with permission from the author.

Who trains with Rescue 3?

Emergency services

Throughout Europe, all branches of the emergency services have taken Rescue 3 training courses in water, rope, boat, confined space and ice rescue. Fire and rescue services, police and ambulance/paramedic teams are called upon to attend at such incidents. The various branches of the military have also undertaken Rescue 3 training in order to operate safely in specialised environments.

Search and rescue teams

Rescue 3 training courses are key for a myriad of search and rescue teams, both volunteer and professional. Mountain rescue, lowland rescue, cave rescue and search dog teams are regularly called upon to operate in or near water, at height or in confined spaces. Specialist animal rescue organisations also work alongside the emergency services and rescue teams, as do civil defence organisations.

Infrastructure

Workers from utilities companies operate in a variety of complex environments – at height, near water, and in confined spaces. Rescue 3 training can enable them to work safely in these environments, rescue a co-worker in the event of an incident, or operate in exceptional circumstances such as wide area flooding. Mass transit and aviation companies also have key workers who need appropriate training to operate in such environments.

Industry

Rescue 3 has a suite of safe working and co-worker rescue courses, for a range of environments, including at height, in confined spaces and near water. All branches of industry who require safety training for their employees turn to Rescue 3, including the fields of petrochemicals, manufacturing, construction, nuclear energy, renewable energy, and more.

National, regional and local government

A growing number of national, regional and local governments are adopting the Rescue 3 training standards, as prerequisites for those working in complex environments within their jurisdiction, including for infrastructure, industry and leisure tourism.

Education

At universities and colleges, those undertaking research in and around complex environments require appropriate safety training from Rescue 3. Teachers and youth workers may also require awareness or safety training, depending on the nature of their work.

Outdoor professionals

Adventure tourism organisations and adventure activity providers must have suitably qualified staff, with appropriate safety training. The Rescue 3 whitewater rescue courses are used as default training for raft and kayak guides throughout the world. Major international extreme sports events, which require technical rescue safety cover due to the nature of the environment, make use of Rescue 3-trained staff.

Precision planning and training for working safely at height

Mitigating against falls from height figures in many industrial contexts, and training excellence is pivotal to this.

Preparedness for potential accidents, a thorough understanding of hazards and appropriate training are central to achieving workplace safety. Where it comes to working at height, a fall of just a short distance can prove fatal, or leave a worker with permanent disabilities.

It’s whey the practice of developing a risk assessment is so important. Anticipating the risks and putting plans in place to combat them is consistent with widespread legislation, which exists to keep your workforce safe and well in their working lives.

If you can’t eliminate the hazard from the required task entirely, be sure you have a plan for safe working.

Part of a thorough risk assessment is, of course, anticipating the worst case scenario and it’s in just such situations that emergency procedures should be in place.

In an emergency

The UK’s Work at Height Regulations require employers to plan for emergencies and rescue, and similar requirements exist in many other jurisdictions. The best rescue is one that doesn’t have to be performed, and so the hierarchy of rescue begins with awareness of safe operating procedures. All workers must be trained by suitably qualified instructors to operate safely at height.

Self-rescue is the next step on the hierarchy of rescue. With appropriate training and equipment, workers will be able to get themselves out of trouble in the unlikely event of a minor incident occurring.

A broader awareness of rescue procedures goes hand in hand with self-rescue. A conditional rescue is one in which the victim is able to play a part to aid rescuers. The flip side of this is a true rescue, where the victim can’t aid rescuers. By their very nature, true rescues are more complicated and can be more time consuming. Clearly, an informed and trained victim will reduce risk and impact if a rescue is needed.

Following on from self-rescue is co-worker rescue. At a minimum, everyone working at height must be able to keep themselves safe, their co-workers safe, and be able to perform basic co-worker rescue. Time can be a critical factor in rescues, so it’s ideal to have a trained rescuer already on the scene and with the necessary PPE and equipment already in place. Knowing that employees can rescue a co-worker before a situation escalates is a vital part of an employer’s plan for emergencies and rescue.

Anticipating risk

An employer’s plan for rescue must begin with a risk assessment. This must take into account the obvious factors such as nature of the work being undertaken, location of that work, environmental hazards and the skill and training levels of those undertaking the work, as well as any access issues for additional rescue teams. This risk assessment will then lead on to the pre-plan for emergencies and rescue, ensuring that everyone is suitably trained, and knows how to operate if an incident occurs.

The scope of the rescue plan is directly informed by the risk assessment. At the lowest level of requirements, safe working at height training and co-worker rescue at height training may suffice. However, employers with wider requirements, in terms of worker numbers, nature of the work/facility or perhaps access/egress issues, may need to provide a stand-by rescue team. This could be staff trained to provide such rope rescue, or buying in a contracted rescue service. Whilst the statutory emergency services will probably become involved in a major incident, it is not sufficient under the regulations to rely on them to provide your rescue capability.

A rope rescue team can wholly comprise of Rope Rescue Operators, Rope Rescue Technicians, or a combination, depending on what they are tasked to do. Rope Rescue Operator training will imbue employees with a great deal of knowledge for working safely at height and undertaking rescues. Those employees who require technician-level training will begin with operator-level training. Beyond this, specialist-level training is also available for employers with more specific requirements.

A suitably trained and qualified rope rescue team can form an important part of any employer’s rescue plan. As with everything relating to health and safety, employers should hope for the best, but plan for the worst. Having employees suitably trained as a rope rescue team, prior to any involvement by the emergency services, can ensure a swift, safe and successful response to any incident.

Responsibilities and practicalities

Employers can follow a number of training pathways. The first of these is to have employees trained wholly in-house.

Regulation 5 of the Work at Height Regulations (2005) states that:

• You must ensure that everyone involved in the work is competent (or, if being trained, is supervised by a competent person). This includes involvement in organisation, planning, supervision, and the supply and maintenance of equipment.

Whilst employees may be able to pass on knowledge of day to day operations to co-workers, there is a large leap from this to meeting the competency requirements for training for emergencies and rescues. If following the wholly in-house path, an employer would have to invest heavily in an employee or employees who were developing, in isolation, an in-house training scheme that could meet the legal requirements.  These employees would have to constantly keep abreast of all latest developments in the field and current best practice, as well as documenting the evidence of this experience, to satisfy any and all questions that may be asked of them in the worst case scenario of an incident occurring.

A simpler and more cost-effective training pathway is for employers to seek an external training provider, suitably accredited to deliver the highest standards of safe working at height and rope rescue training.

Regulations 4 and 6(1, 2) of the Work at Height Regulations (2005) say that you must:

• Ensure that no work is done at height if it is safe and reasonably practicable to do it other than at height.
• Ensure that the work is properly planned, appropriately supervised, and carried out in as safe a way as is reasonably practicable.
• Plan for emergencies and rescue.
• Take account of the risk assessment carried out under regulation 3 of the Management of Health and Safety at Work Regulations.

Furthermore, regulation 6(5)(b) states that:

• Where other precautions do not entirely eliminate the risk of a fall occurring, you must (as far as it is reasonably practicable to do so) train those who will be working at height how to avoid falling, and how to avoid or minimise injury to themselves should they fall.

By undertaking training with a suitably accredited external training provider, an employer will meet, and enable their employees to meet, these requirements. Of course, simply outsourcing training to a third party who doesn’t have suitable qualifications themselves won’t meet these requirements. It’s vital that any training is delivered by an organisation that is backed by a large accrediting body that offers international accreditation and recognition of their qualifications.

Larger employers, or those with very specific operational requirements, may look at the training pathway of becoming an externally accredited training provider in their own right. For an employer with staff externally accredited, there’s only a small leap to put them through instructor training and assessment with the accrediting body.

This will allow an employer to deliver in-house training, using staff that they can be sure meet all the legal requirements. These staff will have the support of an international accrediting body with an ever-expanding breadth of knowledge. With qualifications valid for a set period of time, before a simple update workshop needs to be undertaken, an employer ensures that its employees are always working to current best practice.

Specific training methods – case studies

Obviously, different industrial environments will present workers with different challenges – something that is illustrated in the following anonymised case studies, in which appropriate training not only led to cost savings but increased productivity.

Wind turbine context

A wind turbine company, operating three wind turbines with external ladders on a single site employed 5 wind turbine operators, including a team leader. In order to meet the requirements of the Work at Height Regulations (2005), the management and the team leader actively work on a plan for emergencies and rescue. However, they find that the team leader is increasingly being drawn away from their daily duties.

The management consider hiring another wind turbine operator, in order to free up more of the team leader’s time, but instead sought Wind Turbine Operator training from an external training provider which offered international accreditation.

The nature of the training is industry-specific and site-specific, but broadly maps to safe working at height and co-worker rescue at height training. The qualifications are valid for a period of three years, after which recertification is required.

The training was a mix of classroom-based and practical. Of particular use to the team leader are the lectures on UK regulations and legislation, risk assessment, pre-planning, developing rescue plans, incident size-up and incident management.

These lectures can be bespoke/developed specifically for a particular company and its operational area. In this way, the team leader was empowered to fully develop a plan for emergencies and rescue after the training – made significantly easier to communicate to co-workers largely due to the increased knowledge of the operators.

The practical sessions include training for different types of fall arrest equipment, use of lanyards and shock absorbers, emergency descending, and rescue of a co-worker from fall arrest systems. Participants said they experienced an increase in their  ability to work safely at height, as well as to rescue co-workers in the event of an incident occurring, which impacted positively on workplace morale.

A shipping context

A port authority responsible for more than half a million TEUs (shipping containers) per annum employs more than 500 workers throughout the authority. Work at height and using cranes takes place continuously over a large operational area. The authority has identified that there were higher than expected working days lost per annum as a result of incidents at height and sought a solution to the concurrent goals of increasing worker safety and minimising the financial losses associated with lost working days.

Analysis of operating procedures indicated that there was scope for improvement within emergency and rescue plans, and the authority decided on a two-stage process for meeting its goals.

The first stage was for the training of a dedicated rope rescue team. This was done through an external training provider to the level of Rope Rescue Technician. For operational reasons, the rope rescue team comprised members of their on-site advanced first aid team, allowing a fully coordinated response to any incidents, and the speediest delivery of stabilisation of any patients.

The training mixed classroom-based and practical sessions. The lectures include topics such as relevant legislation, size-up, pre-planning, ICS, on-scene safety briefings, site control, medical considerations, equipment care and maintenance, and system safety checks.

Practical sessions developed from the elements of safe working at height and co-worker rescue at height training. They looked at team-based solutions that are required when co-worker rescue solutions are not sufficient. In addition to team-based raising and lowering techniques, the Rope Rescue Technicians are trained in a number of personal skills vital for their work. These include key skills, such as passing knots, anchors and deviations when ascending/descending, as well as rope transfers and changeovers. The practical sessions also cover casualty access and care elements.

The second stage of this organisations action plan will involve training key staff to rope rescue instructor status, and, over the longer term, becoming an externally accredited Rescue 3 Europe training provider in their own right. This will enable them to train their rope rescue team in-house, to the highest standards, whilst ensuring their instructors remain current with industry best practice. These instructors will also be able to train the wider body of employees to work safely at height.

The impact on reducing lost working days and improving worker safety has already been seen. Because the training is internationally accredited, it has benefitted the authority when recruiting new employees: many of them already hold this qualification, and thus are operationally up to speed much more swiftly than those who don’t yet hold it.

This article originally appeared in Health and Safety International, and is reproduced here with the author’s permission.

Perishable Skills – Trained vs. Competent

You might have been trained, but are you competent? Does the adage that ‘some training is better than no training’ stand up to scrutiny?

The first question an agency should ask itself is: what are we asking our personnel to do?

Within the rescue field, teams are commonly asked to perform complicated tasks in high consequence environments, with multiple external pressures influencing their decision making. Rope and water rescues require a great deal of technical understanding from the team members involved and they will be required to pick out the most appropriate technique from the myriad options available to them. If a team has only seen a technique once, on a training course, five years ago, will they be able to remember the nuances of the technique’s application? Having experienced a technique in one given training environment, will those rescuers be able to understand the benefits and limitations of the technique?

The Rescue 3 philosophy identifies four stages of a rescuer’s development, these being: training, practice, experience, and judgement. Training is a rescuer’s foundation – the introduction of ideas and techniques; it is only by going out into the world to practise and gain experience in the use of different techniques, in different environments, that a rescuer develops judgement.

So, get some training, go out into the world?

There is another old saying that ‘practice makes perfect’. However this is not necessarily the case. What is true is that ‘practice makes permanent’. The repetition of a task will drill muscle memory and recognition; the problem occurs when a technique is performed inaccurately or if the technique is being misapplied. While regular in-house training is incredibly important for the development of a rescue team’s capability, it is also important to check that bad practice is not creeping in and being reinforced through repetition. The quality, or lack of, in-house training should also raise questions about a rescuer’s capability one week after they have completed a training course versus a rescuer who completed their training course three years ago.

Things do change…

The rescue world is changing constantly, both in terms of techniques and equipment. This means that our rescue training should be in a state of constant evolution. What may have been current best practice when students took their initial course can easily be supplanted by new techniques or models. The most obvious example is the use of designated main and designated belay (DMDB) for rope rescue operations. Transporting a rescue load with a designated main line seeing the load, while backing it up with a hand tight belay, was widely considered best practice and has been ubiquitous in the rope rescue world for a very long time. Over the past few years, there has been a paradigm shift towards Dual Capable Twin Tensioned Rope Systems (DCTTRS), where the load is shared between the two ropes. This means that teams who undertook training a couple of years before would be unaware of the substantive change in thinking, based on anecdotal evidence and more up-to-date research.

Check, consolidate, and evolve.

The need for ongoing professional input into technical rescue training is essential. The idea that a single training course produces competent rescuers in perpetuity does not stand up to scrutiny. The constant evolution of techniques, the likelihood of skill fade, and potential for technique creep – where a technique is warped and misapplied – is enormous. For these reasons, regular externally accredited updates for both students and instructors are vital. So when we ask the question: what are we asking our personnel to do? We should also be asking: does the frequency and quality of our training genuinely prepare our teams for their operational reality?

Strainer Drills

Strainers are some of the most common hazards that people working in a moving water environment are likely to encounter. In urban floods, a strainer can be formed from anything and everything: signage, debris, vehicles, fences, even buildings themselves. In a whitewater environment fallen trees and badly placed fences create serious hazards.

As part of practical in-water Rescue 3 courses (including SFR, SRT, WRT-PRO or SWIW), students are required to perform a strainer drill. This raises the question: why get students to practise something that should never happen?

Avoidance

Operationally, technicians and responders should be able to identify strainers and perform a risk assessment based on where the strainer is positioned in the flow: the severity and likelihood of being swept into the strainer is based on its position relative to the current vector. Once the rescuers have assessed the risk that the strainer presents, they will then need to identify any appropriate control measures. It may be that the team still chooses to work upstream of the strainer, but with enough time and space, eddies and downstream cover, that the risk can be mitigated. Possibly the risk of operating upstream of the strainer is too great and they choose to avoid it completely by working downstream of it, or even remove it. It may be that strainers are identified in a channel, but the space around the hazards seems adequate for the swimmers or boat handlers to avoid them. There are infinite variations on how and where a strainer might present itself, but the important message is that they should be identified, and they should be avoided.

The drill

If the take-away message about strainers is to identify and avoid them, then why perform a practical session where students swim onto and over the strainers?

There are two main reasons:

1. Stuff doesn’t always go to plan… avoidance is one layer of safety; but often factors such as casualties, tasks, and changes to the environment can mean that a rescuer may need to deal reactively to a hazard in front of them. For a hazard as ubiquitous as a strainer, a rescuer should be given as many layers of safety as possible. An aggressive swim over, or up onto a strainer is a rescuer’s best chance of not getting swept underneath it.
2. Experiential: there is a strong argument for running a strainer drill session in reasonably benign water – the same place or similar to where a wading session would be run. If a strainer drill is run in high energy, turbulent water, there is an increased likelihood of causing injury to students, but also the message is not particularly useful: it is terrifying; the student could tell you that without having to do the drill… Running the drill in slow moving water, that appears fairly benign, can give a much stronger and more surprising message. Encouraging students to drop onto the strainer defensively, allowing their feet to go underneath and then try to get themselves back over the top can provide a valuable lesson about the perceived and the real power of relatively benign water. If taught correctly, with the appropriate message, this session can add greatly to a student’s understanding and experience of a moving water environment: strainers within wadeable water can present a real hazard to rescuers.

It should be made clear that, if a rescuer finds themselves on the upstream side of a strainer, there have been multiple failings in their planning and decision making. A strainer drill should have two distinct elements: the experiential and the survival technique. It is the job of the instructor to clarify what the purpose of each part of the session is, and to clarify the message behind it. Students should be in no doubt that they do not want to go under a strainer due to the potential blockages and entrapments that may exist under the water. Students should prioritise the thorough inspection and risk assessment of a site, but also know that in a bad situation they should invest all of their energy into getting over or as high up a strainer as possible by swimming aggressively towards it, because if they allow any part of their body to go underneath, it is near impossible to pull themselves back out.

Summary

• Identify and avoid strainers.
• Ensure control measures are robust and realistic if working upstream of strainers.
• Run strainer drills in lower energy environments to give a stronger message. NB there should be enough movement in the water to ensure that students get an appreciation of the force and consequence of washing onto a strainer.
• Experiential: go part way under then try to get back over.
• Survival mode: go aggressive, get over or high up on the strainer.