SR 20 over Unnamed Tributary

Good Condition2 years old2,598 vehicles/day

Location

StateWashington
CountySkagit
Location28.7 E Jct SR 9
CarriesSR 20
CrossesUnnamed Tributary
Coordinates48.49871, -121.64637

Condition Ratings

Overall ConditionGood
Deck8 (Very Good)
Superstructure8 (Very Good)
Substructure8 (Very Good)
Channel/Waterway8 (Very Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialPrestressed Concrete
DesignSlab
Total Length41.7 ft (12.7 m)
Max Span37.7 ft (11.5 m)
Deck Width43.3 ft (13.2 m)
Deck Area167.6 sq m
Main Spans1
Year Built2024

Traffic

Avg Daily Traffic2,598 (2023)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last Inspection824
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Structure Number0019764A0000000

Nearby Bridges

Concrete-sauk Vly over Miller Creek 1.1 mi Good SR 20 over Gulch 1.6 mi Fair SR 530 over Skagit River 2.6 mi Fair SR 530 over Bohs Slough 2.7 mi Good Finney Creek Road over Finney Creek 3.2 mi Good SR 20 over Jackman Creek 3.6 mi Good Conrad Road over Swift Creek 4.3 mi Fair SR 20 over Debris Channel 4.4 mi Good SR 20 over Swift Creek 4.4 mi Good Conrad Road over Sutter Creek 4.5 mi Good