On Monday, crews working for Puget Sound Energy will begin digging up downtown arterials to make way for a new natural gas pipeline needed to accommodate growth in the area. Over the next four months, parts of Northeast 10th Street, 110th Avenue Northeast and Northeast Second Street will be closed to traffic for the installation.
The first section of roadway that will be affected is in and around the intersection of 110th Avenue and 10th Street. Workers will dig a roughly 6-foot-wide trench in the street, then lay 12-inch, welded steel pipe and a second 8-inch pipe before filling the ditch and repaving the road.
Starting at 5 a.m. Wednesday, Aug. 6, 110th Avenue will be closed to southbound traffic between 10th and Eighth streets. However, all residences and businesses will remain accessible via Eighth Street. The southbound lanes on this stretch are scheduled to reopen around Aug. 16.
Using heavy machinery, workers will trench their way south on 110th Avenue Northeast at the rate of approximately 100 feet per day, crossing busy intersections at Northeast Eighth and Northeast Fourth streets along the way. Most of the work will be done from 7 a.m. to 7 p.m. weekdays, although some night and weekend work will be necessary to help minimize roadway disruptions.
Later in August, PSE’s contractor for the work, Alaska Continental Pipeline, will add a second crew, which will start at Northeast Second Street at 112th Avenue Northeast. From there, the line will go south on 112th Avenue, east on Southeast Sixth Street where it widens to 16-inch diameter pipe, south again on 114th Avenue Southeast to 118th Avenue Southeast, then east on Southeast Eighth Street and Lake Hills Connector to 140th Avenue Southeast.
The work is part of PSE's Bellevue Braids-Lake Hills Connector natural gas pipeline project. PSE is adding a total of 3.5 miles of new pipeline in Bellevue, to provide backup for an existing line in addition to accommodating growth.
PSE offers detailed information about the project. Bellevue's Traffic Advisories offer the latest information about lane closures and traffic impacts.
All downtown work is scheduled for completion by Nov. 15. Installation of the rest of the pipeline will wrap up by the end of 2008; repaving work will be finished in spring of 2009.
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