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How to Build a Long-Lasting Block Retaining Wall

Size the trench so there's enough room for the retaining wall block and at least 8 in. of space behind it. Excavate deep ...
Oregonian

Columbia River Gorge bridge reopens 5 months after retaining wall collapsed

Multnomah County crews have wrapped up repairs on the Stark Street Bridge in the Columbia River Gorge, which closed five months ago after a retaining wall collapsed. The bridge reopened Thursday, ...