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SE 43rd Roundabout Forcemain Revisions
See Capital Improvement Projects Figure
Update January 2008
Background Sewage from the District's sewer service area (most of the Sammamish Plateau)
flows through a 20-inch diameter sewer interceptor constructed 20 years ago along SE 43rd Way
and southward on East Lake Sammamish Parkway. Since 1991, sewage collected along the Lake
Sammamish lakefront has been pumped through a forcemain along East Lake Sammamish Parkway that
connects to the interceptor at SE 43rd Way.
Due to the rapid growth on the Sammamish Plateau over the past 20 years, a
parallel sewer interceptor was installed in 2005 on East Lake Sammamish Parkway to help carry
the sewage from the District's growing urban area. However, connection of the forcemain along
East Lake Sammamish Parkway to the new interceptor could not be completed until the design and
construction of the SE 43rd Way intersection improvements by the City of Issaquah were completed.
Construction of these intersection improvements are scheduled for Summer 2008.
The District has prepared the design of the forcemain/interceptor connection, and will be advertising
the project for public bids. The project will include realignment of a portion of the forcemain from
the Mallard Bay Lift Station to East Lake Sammamish Parkway to preserve the nearby wetland. Construction
of the forcemain connection is expected to begin in Summer 2008.
Questions and Comments
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