Mill Creek Levee Rehab

Scope of work: Forty-seven damage sites located along the left and right levee banks of Mill Creek in Walla Walla County, Washington, in or near the City of Walla Walla, WA. Damages are consolidated into four categories to include: wirebound revetment damage, riprap failure/displacement, gabion damage, and erosion/scour. Many of the sites identified contain damages from multiple categories and/or multiple instances from a single categor Repair includes reestablishing the riverside slopes and revetments where visible damage exists. Removal and disposal of all woody vegetation from the repair sites to facilitate the repair work. Prohibited to remove vegetation outside of the repair areas unless it is necessary to facilitate the repairs. Repair consists of replacing riprap that failed or displaced, re-construction of the fascine and the wirebound slope revetments, and repair of vertical gabion baskets by replacing wire, filling of wire with cobbles or other suitable material, and closure of the wire to contain the revetment materials.