The city of Snoqualmie and King County Flood Control District will be repairing an existing revetment (retaining wall) along the Snoqualmie River.
The repaired revetment will protect properties and structures along the roadway and stabilize a city water main as well as buried utility infrastructure. Without the repair, erosion from the river would likely cause the road to fail entirely.
During 2015, post-flood inspections found damage to two sections of an existing river revetment along the Snoqualmie River at the corner of SE River Street and Park Avenue SE in downtown Snoqualmie. A revetment is an engineered riverbank protection extending from the roadway into the river.
The damage was from high river flows, which caused erosion of riverbank armor rocks and exposed underlying soils.
The repair project will include installing wood piling, armor rock, and native vegetation to protect against erosion. It will also remove invasive plant species growing on this section of the existing revetment.
Construction is expected to begin in mid-July and stretch through December. SE River Street from Falls Avenue SE to Park Avenue SE, and Park Avenue SE to SE River Street to SE Newton Street will be closed around the clock in both directions through most of the project’s duration.
Residents of Park Avenue SE will be able to access their homes from the rear alley. Parking will be available on side streets. Partial access may be available at times during the project, with advance notice.
Noise will include pile driving, construction activities, equipment operation and truck traffic.