Construction resumes October 28, 2026 near SR 104 Lyon Creek fish passage site

Construction will resume Wednesday, October 28, 2026 near the SR 104 Lyon Creek fish passage site for removal of a buried storage tank. Construction will happen from 7am to 3:30pm for about five weekdays. Work will not happen overnight or during weekends.

During working hours, one lane of NE 185th Street will close at the intersection of SR 104. Signed detours will guide people around the closure.

Underground tank removal

During this project, our contractor found a buried fuel storage tank on site that was not previously identified in plans. The tank was discovered midway through construction, after known fuel tanks had already been safely removed.

In recent months, we have worked with the property owner and developed a plan to remove the tank, which is located near the intersection of NE 185th Street and 35th Avenue NE. This storage tank, which is believed to be empty, must be removed.

Our contractor will use industry best practices to remove this final tank and any potentially contaminated soils nearby. Contaminated soils removed from the work zone during tank removal will be disposed of at authorized facilities. Crews will fill around the tank with clean soils and add landscaping before finalizing construction.