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Public Works and Environmental Services

  1. Home
  2. Public Works and Environmental Services
  3. Stormwater Management
  4. Watershed Improvement Plans, Projects and Restorations
  5. Tripps Run at Barrett Road Flood Mitigation Project

Public Works and Environmental Services Alert:

CONTACT INFORMATION: Our offices are open 8 a.m. – 4:30 p.m., Mon - Fri
703-324-5500 TTY 711
swpdmail@fairfaxcounty.gov
12000 Government Center Parkway
Suite 449, Fairfax, Va 22035
@ffxPublicWorks
Joni Calmbacher
Director, Stormwater Planning

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Tripps Run at Barrett Road Flood Mitigation Project

Project Number: SD-000032-069

Project Update: August 5, 2026

The project is entering the 65% design phase.  Project updates will be provided after this phase has been completed.  Please reach out to the project manager, Jacob Green, by phone at 571-407-6723, or by e-mail at jacob.green@fairfaxcounty.gov.


Training Opportunities

The Fairfax Fire and Rescue Department utilizes acquired structures for realistic training in task and scenario-based evolutions. The following is an overview of the SCENARIO training we would endeavor to accomplish while having the use of the acquired structures:

The largest and primary training scenario would be a full box alarm. This would be a practiced coordination that would emulate both the response and tasks of a house on fire.

  • First arriving engine communicating a water supply report that would include laying down large diameter hose from the closest hydrant to the home.
  • Positioning of the engine and first arriving ladder truck at the front of the home.
    • Other later arriving units would position either as needed to complete water supply or out of the way to not hinder movement of vehicles or personnel.
  • First arriving command officer positioning to run the scene.
    • Can be a Battalion Chief, Deputy Chief, or second arriving engine officer.
  • The first engine is deploying a hose line while the officer walks a lap of the structure.
    • Looks for basement access, fire location, possible victims, number of floors and possible hazards.
    • Second lap done by truck or rescue officer.
  • Taking the hose line through the entrances to the home to the location of the fire.
  • Ladders from the first engine are placed at the windows and roof by the truck for quick access or evacuation.
  • Searching the home at all levels to find victims.
  • Positioning a unit for Rapid Intervention Team operations
    • May go in to retrieve a downed firefighter.
  • Lighting the home on all sides for visibility.
  • Controlling utilities to the home.
  • Additional ladders or hose lines may be deployed.
  • All interior tasks would be done while breathing air via Self Contained Breathing Apparatus, or SCBA.
  • May include a rescue component that encompasses packaging and removing a downed firefighter.
  • All of these could also be done as individual skill stations done by smaller companies or single unit drills

The Fairfax Fire and Rescue Department utilizes acquired structures for realistic training in task and scenario-based evolutions. The following list is an overview of the NON-DESTRUCTIVE training we would work to accomplish while having the use of the acquired structures:

  • Radio communications, to include identification of the closest hydrant and an appropriate water supply report by the engine arriving first on scene. This may include laying out several hundred feet of large diameter hose so that another engine can connect to it and then the hydrant, with the intent of supplying water for extended operations.
  • Deployment of a hose line to the home.
    • The hose line typically varies in length from 200 ft to 400 ft and is deployed either from the shoulder or flaked out across the ground
    • It is laid out in such a way as to easily be moved into the structure with minimal entanglement. I.E. large loops that are in line with the opening to the structure.
    • Typically deployed by two firefighters but can be done by one.
  • Taking ladders from the apparatus and placing them at all windows and roof lines.
    • The mounted aerial ladder may be deployed to the roof as well.
  • Charging a hose line in the front yard and taking it through the home.
    • Depending on allowed practice, water would be flowed inside the home for simulated fire attack.
  • Searching of the home for victims.
    • Victims may be removed via the ladders or other means.
  • Deploying additional hoses and ladders as needed.
  • Emulating medical care given to victims removed from the structure
    • Typically, a stretcher and medical equipment is staged as close as safely possible to the fire as to administer care immediately
    • May encounter burns, trauma, or cardiac arrest

This covers a large portion of the intended training that would be done in these homes. The best way to hone our skills and make sure we are best able to respond to emergencies is to do so in an environment as realistic as possible. We practice as much in line with our emergency responses as we can. However, all training is done with the surrounding area in mind and would be amended based on the availability of space, the understanding of the local population, and the express permission of the owners of the homes.

The Fairfax Fire and Rescue Department utilizes acquired structures for realistic training in task and scenario-based evolutions. The following list is an overview of the DESTRUCTIVE training we would work to accomplish while having the use of the acquired structures:

  • All non-destructive training practices and skills.
  • Cutting ventilation holes in the roof for smoke removal.
  • Cutting garage doors with powered saws.
  • Opening gables with hand tools and saws to gain lateral access to the attic spaces.
  • Breaking windows to allow for searches from the exterior via ladder.
  • Forcible entry into the home by breaking through the door locks.
    • Typically done with forcible entry tools such as a Halligan and Axe (married pair).
    • Can be done utilizing a hydraulic ram, should metal doors be found.
  • Taking out portions of the interior or exterior walls to make a nontraditional entry or exit.
    • May be used for firefighter survival training.
  • Ceiling drywall removal.
  • Cutting down parts of the foundation to practice firefighter removal from the basement.
  • Taking out portions of the floor to practice victim removal and fire attack.
  • All live fire scenarios would fall under destructive training.
  • Special operations training, including confined space entry and simulated building collapse

This covers a large portion of the intended training that would be done in these homes. The best way to hone our skills and make sure we are best able to respond to emergencies is to do so in an environment as realistic as possible. We practice as much in line with our emergency responses as we can. However, all training is done with the surrounding area in mind and would be amended based on the availability of space, the understanding of the local population, and the express permission of the owners of the homes.

Project Background

The project is the result of a study completed in December 2020. The study involved the investigation of potential flood mitigation measures in an area of historic flooding along Tripps Run near Barrett Road. The study assessed and evaluated four flood mitigation project scenarios. These scenarios included grading and stream enhancements within county properties and easements as well as acquiring properties for additional grading opportunities. After the study was completed, the first public meeting was held on February 18, 2021, to present the findings to the community. The selected scenario moved forward for design in summer 2023.

The Final Report can be found here: Final Report | Appendix A | Appendix B | Appendix C | Appendix D

Project Description and Location

The project area is located along Tripps Run between Annandale Road and Sleepy Hollow Road.

Map - Tripps Run at Barrett Road Flood Mitigation project
The project area is shown in the red outline.

Benefits

The following benefits may be realized:

  • Reduction in property flooding
  • Reduction in residential structure flooding
  • Creation of an environmental corridor
  • Improved floodplain connectivity
  • Stream stability, flow diversity and possibly water quality improvements

Presentations to the Community

  • Tripp’s Run at Barrett Road Flood Mitigation Project Community Meeting - July 23, 2026
  • Tripps Run at Barrett Road Flood Mitigation Project – Project Updates - September 3, 2025
  • Tripps Run at Barrett Road Flood Mitigation Project – Fire Safety and Live Burn Training
  • Tripps Run at Barrett Road – 35% Design Public Meeting
  • Tripps Run at Barrett Road – Project Updates

Timeline

The project is in design, which is expected to be complete in 2027.  The construction timeline of the project is still to be determined.

Project Cost and Funding Source

Funding through the Department of Conservation and Recreation (DCR) Community Flood Preparedness Fund (CFPF) in the amount of $8,985,200 has been awarded. A Grant Agreement from the Virginia Resources Authority (VRA) was authorized in April 2023 for the design and construction of the Tripps Run at Barrett Road Flood Mitigation Project.

Contact

For more information, please email Jacob Green, Stormwater Planning Division, Department of Public Works and Environmental Services, or call 571-407-6723.

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