I-90 over East Channel-lk Wash

Fair Condition38 years old66,975 vehicles/day

Location

StateWashington
CountyKing
Location5.9 E Jct I-5
CarriesI-90
CrossesEast Channel-lk Wash
Coordinates47.57782, -122.20466

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure6 (Satisfactory)
Substructure6 (Satisfactory)
Channel/Waterway8 (Very Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialSteel Continuous
DesignBox Beam - Multiple
Total Length2224.1 ft (677.9 m)
Max Span299.9 ft (91.4 m)
Deck Width113.5 ft (34.6 m)
Deck Area23455.3 sq m
Main Spans9
Year Built1988

Traffic

Avg Daily Traffic66,975 (2023)
Truck Traffic3%
Lanes On Bridge5
Lanes Under Bridge4

Inspection & Ownership

Last Inspection924
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is eligible for the National Register
Structure Number0012912A0000000

Nearby Bridges

I-90 over East Channel-lk Wash 0.0 mi Fair East Mercer Way over I-90 0.1 mi Good North Mercer Way over I-90 0.4 mi Good E-e Ramp over I-90 Ramps Mercer Sl 0.6 mi Good I-90 over Mercer Slough 0.7 mi Poor I-90 over Mercer Sl 0.7 mi Poor Shorewood Drive over I-90 0.7 mi Fair I-90 S-e Ramp over I-90 Mercer Slough 0.7 mi Fair Skagit Key over Coal Creek 0.8 mi Good I-90 over Mercer Slough 0.9 mi Fair