I-90 WB over Drainage Ditch

Good Condition54 years old16,832 vehicles/day

Location

StateWashington
CountyKittitas
Location20.2 E Jct SR 906
CarriesI-90 WB
CrossesDrainage Ditch
Coordinates47.21436, -121.11236

Condition Ratings

Overall ConditionGood
Channel/Waterway8 (Very Good)
Culvert7 (Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialConcrete Continuous
DesignCulvert
Total Length21.0 ft (6.4 m)
Max Span9.8 ft (3 m)
Deck Area70.4 sq m
Main Spans2
Year Built1972

Traffic

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

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Structure Number002000190000000

Nearby Bridges

I-90 over Big CR 0.4 mi Fair I-90 over Big CR 0.4 mi Good Nelson Siding Road over Big Creek 0.7 mi Good I-90 over W Nelson Siding RD 0.9 mi Fair I-90 over W Nelson Siding RD 0.9 mi Fair Storie Lane over Little Creek 1.5 mi Good Nelson Siding Road over Little Creek 1.6 mi Good I-90 over Little Creek 1.6 mi Fair Hundley Road over Little Creek 1.7 mi Fair I-90 over Little Creek 1.7 mi Good