In the risk vs. frequency assessment, trench rescues certainly are high-risk events that, thankfully, don’t happen frequently. However, when these incidents occur, the imperative for the first-arriving companies and the technicians who respond to be on the same page never is greater. If that isn’t the case before incidents, incidents have the potential to spiral out of control as trained and untrained personnel, who might never have met each other, attempt to work together in a high-stress environment. When technical rescue teams include firefighters in trainings, informational sessions and equipment familiarization, gaps can be bridged before incidents occur, and the two groups can go all in at a response.
Informational sessions
Fire department training officers always are looking for out-of-the-box training ideas. Just because a department doesn’t have trench rescue capabilities doesn’t mean that its members never should be exposed to the concepts of trench rescue response. This can be as simple as the technical rescue team sending a representative to a department to provide a quick awareness-level program to cover the fundamentals. This can be a great way to get buy-in from stakeholders as to what the technical rescue team would like first-arriving companies to do and, more importantly, not do. Among the former: Explaining the importance of first-arriving companies positioning ground padding and placing ladders before the technical rescue team arrives. Further, if the first-arriving companies have the capability, they should perform basic air monitoring and ventilation as soon as possible.
Among what they shouldn’t do: Never enter an unsupported trench.
The technical rescue team also can push the size-up criteria that they desire. Is it an intersecting trench? What work was being done before the collapse? Are some shoring components installed?
Providing firefighters with a checklist also ensures a more efficient response. Items in the checklist can include eliminating vibrations; setting up scene lighting; safely moving the spoil pile; evaluating weather conditions; requesting a vacuum-type truck; and determining the collapse type and scope.
Smart devices make information-sharing easier. By laying out the important size-up considerations that are important to the technical rescue team, first-arriving companies can take photographs and videos that highlight those considerations. For example, if the first-arriving companies are made aware of how important the location of the spoil pile is and the location and/or status of heavy equipment, photos can be taken and sent to the technical rescue team while its en route. Even simple guidance on leaving space near the scene for the team’s specialized equipment saves crucial time. We never met a technical rescue team member who wants to move trench panels farther than necessary.
Training & equipment
Trench rescues are staffing-intensive and can last for several hours. Very few teams can operate in a total vacuum; more often than not, they need support from the first-arriving companies. With some basic equipment and operations-level familiarization, the first-arriving companies can become an asset to assist the technical rescue team.