Case Studies

Commercial Foundations Case Studies: Bowing Retaining Wall Repair in Mercer Island, WA

Wednesday, June 7th, 2017 by rose bishop

Challenge

Matvey Construction’s design technician was on site to evaluate this homeowner’s concerns of a bowing retaining wall located on a hillside home on Mercer Island, WA. It was determined that drainage issues contributed to the retaining walls settlement issues. 

Solution

Geofoam was used behind the retaining wall to reduce lateral pressure. This lightweight fill material takes the load off the wall because Geofoam is only 4 lbs per cubic foot compared to the soil on-site that was 80 lbs per foot. By using this material, it will help maintain the wall repair and extend the life of the repair. Traditional earth materials are heavy and can cause settlement, instability or lateral pressures. The homeowner was very happy that were able to take care of the issue and finish the work on time.

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Matvey Foundation Repair
1912 S 146th St
Seattle, WA 98168
1-206-538-6142