SR 203 over Slough

Poor Condition81 years old7,813 vehicles/day

Location

StateWashington
CountyKing
Location0.5 N Jct SR 202
CarriesSR 203
CrossesSlough
Coordinates47.57550, -121.89044

Condition Ratings

Overall ConditionPoor
Deck4 (Poor)
Superstructure7 (Good)
Substructure5 (Fair)
Channel/Waterway8 (Very Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length51.8 ft (15.8 m)
Max Span17.1 ft (5.2 m)
Deck Width38.7 ft (11.8 m)
Deck Area186.4 sq m
Main Spans3
Year Built1945

Traffic

Avg Daily Traffic7,813 (2023)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last Inspection723
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number0002999B0000000

Nearby Bridges