US 12 over Cowlitz River

Good Condition65 years old6,690 vehicles/day

Location

StateWashington
CountyLewis
Location1.8 E Jct SR 122
CarriesUS 12
CrossesCowlitz River
Coordinates46.51544, -122.56781

Condition Ratings

Overall ConditionGood
Deck7 (Good)
Superstructure7 (Good)
Substructure7 (Good)
Channel/Waterway8 (Very Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1069.9 ft (326.1 m)
Max Span185.0 ft (56.4 m)
Deck Width33.5 ft (10.2 m)
Deck Area3326.2 sq m
Main Spans3
Year Built1961

Traffic

Avg Daily Traffic6,690 (2023)
Truck Traffic23%
Lanes On Bridge2

Inspection & Ownership

Last Inspection224
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Structure Number0006542A0000000

Nearby Bridges

US 12 over Silver Creek 0.6 mi Good Hadaller Road over Winston Creek 1.3 mi Good US 12 over Klickitat Creek 1.9 mi Good Wilson Road over Klickitat Creek 1.9 mi Fair US 12 over Mill Creek 2.7 mi Fair SR 122 over Tilton River 3.1 mi Good Salmon Creek RD over Winston Cr. 3.2 mi Good Stowell Road over Mill Creek 3.2 mi Good Stowell Road over Mill Creek 3.7 mi Good Godfrey over Klickitat Creek 4.2 mi Good