TRENCH RESCUE - LESSONS LEARNED

Following the completion of Wednesday's successful Trench Rescue (see post below) members who participated in the incident reviewed their operations in an effort to identify and discuss a number of strategic and tactical concerns. Both Operational and Command concerns were addressed.

Following is a list of "Lessons Learned" compiled from the incident review:

1. Only the minimum number of personnel should be allowed in close vicinity of the trench. Members allowed near the trench should be limited to USAR members directly involved in the rescue, EMS personnel critical to patient care, and support personnel critical to logistical support functions. It may also be important for a limited number of Command personnel to be near the trench however they should not be directly involved in the rescue operation.

2. Support personnel are critical in the initial stages of the rescue. Logistical support, including the procurement, transport and delivery of shoring material, basic and specialized equipment, medical supplies and other materials and equipment necessary for the rescue should be considered a priority by the Incident Commander. Consider assigning on scene companies to these duties or requesting additional resources to accomplish these tasks if necessary and designating an officer to supervise.

3. Assign Medical, Rescue and Scene Safety responsibilities ASAP. 99% of our on scene responsibilities fall into these three areas in this type of incident and by covering these three areas early an Incident Commander can better organize the incident and build toward a successful outcome.

4. Edge protection is a priority and should be implemented by the first units on scene whenever possible. After initial placement the edge protection should be continually monitored by the Safety Officer. Additional protection should be added when necessary depending on changing conditions.

5. An RIC component should always be established. Although there may be sufficient personnel on scene to accomplish this task it is a requirement in this type of incident to designate the RIC companies and place them in an area for rapid deployment.

6. First companies on scene should spot apparatus away from the incident in order to provide direct access to the rescue site for any specialized apparatus.
Example: A Heavy Rescue may need to be placedin close proximity to the trench in order to utilize their boom as a "high point" or provide support to the rescue effort. Open space near the trench may also be needed to provide access for a Vacuum Truck when necessary.

Comments:
Lots of things to think about in Trench Rescues and great lessons....nice job guys!

Here's a couple I learned over the years.

1. Consider the use of a sewer/vacuum truck during the rescue. The IC has to consider the risk( noise/vibration) vs the benefit ( the ability to remove large amounts of water) from an excavation. It can however reduce digging time in loose soil by half.
2.After shoring, set and lock an Aerial device over the trench to be used as an anchor for a vertical hauling system to remove the victim. It works well with spinal immobilization and the EMS component of the operation.
3. Have one of the USAR/TRT guys be crosstrained as a paramedic. He can be in the trench helping to stabilize the victim along with assisting in the shoring and digging. It minimizes the number of personnel in close proximity to the operation, while essentially doing the job of two people...hey we never said being on the USAR/TRT team was easy...lol.
Jorge Carvajal
Miami-Dade
 
Jorge,

Thanks for your comments and Lessons Learned. We requested a Vacuum Truck enroute but completed the rescue before it arrived on scene. You are right, they can be an invaluable tool for removing loose/sandy soil.

We did have our Heavy Rescue on scene which has an articulating boom and decent reach. If necessary we could have utilized the boom for a "High Point" but it was not needed at this incident. I was very hapy that our members left the front/street access clear for the specialized esources as this point was made during the post incident critique.

We were very fortunate to have USAR/Trench certified Paramedics as part of the initial response and they were designated for EMS ops in the trench.

I can't tell you how rewarding it is to watch so many people work as a team to achieve a goal. The expertise displayed by our USAR members was outstanding and as I told them during the critique "Your operations gave the patient the very best chance for survival".
 
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