Skip to main content
King County logo

View current construction activity on project home page

Revised January 20, 2023

Construction status along the alignment of the North Mercer/Enatai sewer upgrade project.

Construction photos

An excavator is fitted with a hook attachment with cables attached to a huge yellow box. Two crew members are standing beside the large yellow box.During open cut construction, construction crews use steel boxes called trench boxes to strengthen excavation walls while they install pipe deep underground. View more construction photos .