I-90 over S Fk Snoqualmie River

Good Condition51 years old24,954 vehicles/day

Location

StateWashington
CountyKing
Location1.3 E Jct SR 202
CarriesI-90
CrossesS Fk Snoqualmie River
Coordinates47.47427, -121.78047

Condition Ratings

Overall ConditionGood
Deck7 (Good)
Superstructure7 (Good)
Substructure7 (Good)
Channel/Waterway8 (Very Good)
Scour Critical4 — Foundations need monitoring

Physical Characteristics

MaterialConcrete Continuous
DesignBox Beam - Multiple
Total Length486.9 ft (148.4 m)
Max Span142.1 ft (43.3 m)
Deck Width55.1 ft (16.8 m)
Deck Area2493.1 sq m
Main Spans4
Year Built1975

Traffic

Avg Daily Traffic24,954 (2023)
Truck Traffic18%
Lanes On Bridge3

Inspection & Ownership

Last Inspection723
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number0009814B0000000

Nearby Bridges

I-90 over S Fk Snoqualmie River 0.1 mi Good I-90 over 424th AVE SE 0.3 mi Fair I-90 over 424th AVE SE 0.3 mi Fair 436th AVE SE over I-90 1.0 mi Fair SW Mt Si BLVD over Ribary Creek 1.1 mi Fair 436th AVE SE over S Fk Snoqualmie 1.2 mi Fair I-90 over SR 202 1.2 mi Fair I-90 over SR 202 1.2 mi Fair SE Mt. Si RD over Mf Snoqualmie R 1.3 mi Good SR 202 over S Fk Snoqualmie River 1.3 mi Good