Retaining Wall Inspection and Monitoring
Project Overview:
Assessment of a 12-inch reinforced concrete retaining wall along a garage ramp in White Plains, NY. The wall is approximately 72 feet long, up to about 9 feet 7 inches tall, and retains soil and parked vehicles on the neighboring property.
Project Highlights:
- Three site inspections between January and August 2026 tracking the wall's condition over time
- Vertical cracks found running through the full thickness of the wall
- No drainage provisions observed, with water pooling on the retained side
- About two inches of lateral displacement measured across the taller section of the wall in August
- Report recommending test pits, geotechnical investigation, survey, instrumentation and repair
Project Experience:
Each visit was compared against the last. Between January and June the cracks deepened and the lean increased; by August the upper portion of the wall had moved roughly one-sixth of its thickness. Without drainage, hydrostatic pressure, earth pressure and vehicle surcharge were all acting on the wall at once.
Documenting the progression, rather than a single snapshot, made the case for prompt investigation and repair.
Project Outcome:
A signed report was issued in August 2026 documenting the progression and recommending investigation, monitoring and repair.
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