In mid-December, City of Bellevue contractors were preparing to replace a failed storm pipe that had caused a small sinkhole near 2442 West Lake Sammamish Parkway SE. Since then, severe rainfall and flooding in the area have caused significant soil erosion, increasing the size of the sinkhole and displacing the gravel from the pedestrian trail between the street and the beach.
How are we protecting the area?
Immediately following the severe rain event, the City of Bellevue contracted Road Construction Northwest to provide additional measures to protect the area, which included installing more fencing and weather protection, reinforcing utility poles, and adding several tons of rocks to contain the sinkhole and prevent further erosion of the hillside. The contractor also installed an extra temporary stormwater bypass pumping system to better manage high stormwater flows. The sinkhole and hillside erosion have now been contained. We are closely monitoring conditions as we work toward a permanent resolution.
Upcoming work and timeline:
The City of Bellevue’s contractor is scheduled to begin work to repair the stormwater pipe and restore the hillside as early as Monday, January 20, 2020, and take approximately four to six weeks. We anticipate final restoration of the area will be completed by late spring or early summer.
What you can expect during construction:
Work will be performed within standard construction hours: 7 a.m. to 6 p.m. on weekdays and 9 a.m. to 6 p.m. on Saturdays.
Please anticipate traffic delays along West Lake Sammamish Pkwy SE between 10 a.m. and 3 p.m. During those hours, traffic will be restricted to one lane in the work zone and may be stopped intermittently to allow trucks in and out of the job site. Flaggers will be provided for traffic control. Parking restrictions will be in place around the work zone. You may experience increased noise and truck activity during construction hours.
This work is being closely coordinated with other nearby construction projects along West Lake Sammamish Parkway SE.
Potential property impacts:
When crews require access to portions of private property to facilitate repairs, we will work directly with individual owners to ensure properties are maintained or restored if needed.
Sammamish Beach Trail restoration:
The pedestrian underpass and trail from West Lake Sammamish Parkway to the beach will remain closed while we make repairs, install a new stormwater pipe and restore the impacted slope. We will be contacting Sammamish Beach Club leadership to make plans regarding restoration of the pedestrian pathway, landscaping and beach areas.