SR 20 over Methow River

Fair Condition42 years old1,478 vehicles/day

Location

StateWashington
CountyOkanogan
Location22.1 E Chelan Co
CarriesSR 20
CrossesMethow River
Coordinates48.54431, -120.32419

Condition Ratings

Overall ConditionFair
Deck7 (Good)
Superstructure6 (Satisfactory)
Substructure6 (Satisfactory)
Channel/Waterway7 (Good)
Scour Critical3 — Scour critical

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length409.1 ft (124.7 m)
Max Span123.7 ft (37.7 m)
Deck Width43.0 ft (13.1 m)
Deck Area1633.6 sq m
Main Spans4
Year Built1984

Traffic

Avg Daily Traffic1,478 (2023)
Truck Traffic9%
Lanes On Bridge2

Inspection & Ownership

Last Inspection723
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number0012559A0000000

Nearby Bridges