Project updates
Learn about where and when construction is happening throughout the ST district.
East Link Extension Mercer Island Station

Concrete trucks delivering on Thursday, Dec. 28

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On Thursday, Dec. 28, crews will pour approximately 400 cubic yards of concrete for the station's foundation slab. To do so, concrete trucks will exit westbound I-90 at Island Crest Way, travel along North Mercer Way and turn at 77th Avenue Southeast to access the closed 77th Avenue ramp. See map for more information:

Map showing concrete truck route.

What you can expect:

  • Concrete trucks arriving on site from 8 a.m. to 12 p.m.
  • Increased truck traffic along North Mercer Way and 77th Avenue Southeast.
  • Flaggers may be on site to help direct truck traffic. Please follow the direction of signage and flaggers to safely reach your destination.

Looking ahead

No closures for the I-90 on- and off-ramps are planned around Christmas Day and New Year's Day. Closures will not occur between 12 p.m. Friday, Dec. 22 through 12 p.m. Tuesday, Dec. 26 (Christmas Day) and between 12 p.m. Friday, Dec. 29 through 12 p.m. Tuesday Jan. 2 (New Year's Day).