Nav Lock Bridge over Nav Lock Channel

Fair Condition60 years old50 vehicles/day

Location

StateWashington
CountyWalla Walla
LocationLower Monumental Dam
CarriesNav Lock Bridge
CrossesNav Lock Channel
Coordinates46.56005, -118.53891

Condition Ratings

Overall ConditionFair
Deck7 (Good)
Superstructure6 (Satisfactory)
Substructure7 (Good)
Channel/Waterway9 (Excellent)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialConcrete
DesignBox Beam - Single/Spread
Total Length93.2 ft (28.4 m)
Max Span93.2 ft (28.4 m)
Deck Width26.9 ft (8.2 m)
Deck Area232.9 sq m
Main Spans1
Year Built1966

Traffic

Avg Daily Traffic50 (2022)
Lanes On Bridge2

Inspection & Ownership

Last Inspection924
Inspection FrequencyEvery 24 months
OwnerCorps of Engineers
Historical SignificanceBridge is not eligible for the National Register
Structure NumberCEPNWWWA0LMANAV

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