Case study
British Embassy Infrastructure Rehabilitation
Surveying 3,200 feet of piping and replacing a failed liner with trenchless CIPP lining in Washington, DC.
Outcomes
$2M+saved compared to an excavation-based approach
- 823 ftof failed liner removed
- 1,120 ftof new CIPP lining installed
- 240 hrssaved through trenchless rehabilitation
- Client
- British Embassy
- Location
- Washington, DC
- Scope
- 3,200 ft surveyed, 1,120 ft of CIPP lining installed
- Duration
- 2024 to 2026
01/ 04
Client Context
The British Embassy in Washington, DC is a government facility where Dynamic Drain has completed infrastructure rehabilitation work. Aging or failing below-grade piping at a facility of this kind carries operational and security considerations well beyond a typical commercial building, making early, accurate diagnosis and minimally disruptive rehabilitation especially valuable.
02/ 04
The Problem
- 01
A failed prior liner
A prior liner within the Embassy’s piping system had failed.
- 02
An unknown extent
The full extent of the failure had to be established before any rehabilitation work began.
- 03
A sensitive facility
Below-grade piping at a government facility carries operational and security considerations beyond a typical commercial building.
03/ 04
Strategic Approach
- 01
Diagnostic evaluation
Surveyed 3,200 feet of piping to assess its condition and locate areas of concern.
- 02
Defect identification and grading
The survey identified 823 feet of failed liner that needed to be removed.
- 03
Trenchless rehabilitation
Crews removed the 823 feet of failed liner and installed 1,120 feet of new CIPP lining, without the excavation a conventional dig-and-replace approach would have required.
- 04
Verification and reporting
Dynamic Drain verified the completed rehabilitation and documented the results, including the time and cost avoided compared to conventional excavation.
04/ 04
Execution
Using trenchless CIPP rehabilitation, Dynamic Drain’s crew addressed the Embassy’s failed piping without the disruption, site restoration, and extended timeline a conventional open-cut approach would have required.
The survey came first, so the rehabilitation was scoped to the 823 feet of failed liner it found.
What happens next
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- 01Evaluation studyThe system is mapped, inspected by camera, and every section is condition-graded.
- 02Prioritized findingsGrades are weighted by system risk and turned into a plan, most critical sections first.
- 03RehabilitationTrenchless CIPP lining of the sections that matter most, without full pipe replacement. Access requirements are confirmed during the evaluation.