I-90 over Big CR

Good Condition64 years old16,832 vehicles/day

Location

StateWashington
CountyKittitas
Location20.6 E Jct SR 906
CarriesI-90
CrossesBig CR
Coordinates47.21239, -121.10364

Condition Ratings

Overall ConditionGood
Deck7 (Good)
Superstructure7 (Good)
Substructure7 (Good)
Channel/Waterway8 (Very Good)
Scour Critical5 — Stable for scour

Physical Characteristics

MaterialConcrete
DesignSlab
Total Length55.1 ft (16.8 m)
Max Span49.9 ft (15.2 m)
Deck Width42.0 ft (12.8 m)
Deck Area215.0 sq m
Main Spans1
Year Built1962

Traffic

Avg Daily Traffic16,832 (2023)
Truck Traffic23%
Lanes On Bridge2

Inspection & Ownership

Last Inspection524
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number0007016A0000000

Nearby Bridges

I-90 over Big CR 0.0 mi Fair I-90 WB over Drainage Ditch 0.4 mi Good Nelson Siding Road over Big Creek 0.7 mi Good Storie Lane over Little Creek 1.2 mi Good I-90 over Little Creek 1.2 mi Fair Nelson Siding Road over Little Creek 1.2 mi Good Hundley Road over Little Creek 1.2 mi Fair I-90 over Little Creek 1.2 mi Good I-90 over W Nelson Siding RD 1.3 mi Fair I-90 over W Nelson Siding RD 1.3 mi Fair