Echo Cove Bypass and Echo Lake Trunk Replacement under construction

Ronald Wastewater District currently has the Echo Cove Bypass and Echo Lake Trunk Replacement under construction between Aurora Ave and the west shoreline of Echo Lake. Buno Construction, LLC is the contractor for both projects.

Photo courtesy Ronald Wastewater. Workers from Buno Construction install the 18” ductile iron sewer main approximately 25 feet deep along North 195th St next to Echo Cove Condominiums as part of the Echo Cove Bypass project.

The Echo Cove Bypass project consists of installing approximately 900 feet 18” sewer mains around the perimeter of the Echo Cove Condominiums by open trench excavation to connect 2 existing sewer mains and reduce flows in the sewer main located directly below the Echo Cove Condominiums. When completed, the project will connect the sewer mains in Aurora Ave to the Echo Lake Trunk and reduce the flows under the Echo Lake Condominiums by over 90%. Once flows are reduced in the sewer mains under the buildings, the existing pipe under the buildings will be slip lined with 12” high density polyethylene (HDPE) pipe. This project will include work within Aurora Ave.

Photo courtesy Ronald Wastewater.  Silt fence is installed prior to beginning construction on the Echo Lake Trunk Replacement in front of the Echo Shores Condominiums. To date, no silt plumes from construction have been found in Echo Lake.

The Echo Lake Trunk Replacement project consists of replacing over 2,000 feet of existing 14” and 15” sewer mains around and downstream of Echo Lake with 20” HDPE pipe installed by pipebursting. Additionally, work will include replacing up to 14 side sewer stubs and 19 side sewers at no additional cost to the property owners. Pipe will be replaced along the west and north shorelines of Echo Lake, between North 204th Place and North 205th Street and immediately south of North 205th Street at the King County Wastewater Ballinger Pump Station.

--Ronald Wastewater Blog