SR 203 over Slough

Good Condition42 years old10,445 vehicles/day

Location

StateWashington
CountyKing
Location16.4 N Jct SR 202
CarriesSR 203
CrossesSlough
Coordinates47.75833, -121.97167

Condition Ratings

Overall ConditionGood
Deck8 (Very Good)
Superstructure7 (Good)
Substructure7 (Good)
Channel/Waterway8 (Very Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length64.0 ft (19.5 m)
Max Span58.1 ft (17.7 m)
Deck Width35.1 ft (10.7 m)
Deck Area208.7 sq m
Main Spans1
Year Built1984

Traffic

Avg Daily Traffic10,445 (2023)
Truck Traffic9%
Lanes On Bridge2

Inspection & Ownership

Last Inspection721
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number0012644A0000000

Nearby Bridges

SR 203 over Slough 0.2 mi Good SR 203 over Slough 0.3 mi Fair SR 203 over Slough 0.7 mi Fair SR 203 over Slough 0.7 mi Good SR 203 over Cherry Creek 0.9 mi Poor Woodinville-duvall over Snoqualmie River 1.3 mi Fair Woodinville Duvall over Duvall Slough 1.5 mi Fair Woodinville Duvall over Duvall Slough 1.5 mi Fair Woodinville Duvall over Duvall Slough 1.6 mi Fair SR 203 over Clemons Creek 1.7 mi Good