Constr. Fac. Br. over Powerhouse Forebay Water

Fair Condition53 years old50 vehicles/day

Location

StateWashington
CountyGarfield
LocationLower Granite Dam
CarriesConstr. Fac. Br.
CrossesPowerhouse Forebay Water
Coordinates46.65677, -117.43154

Condition Ratings

Overall ConditionFair
Deck7 (Good)
Superstructure6 (Satisfactory)
Substructure6 (Satisfactory)
Channel/Waterway9 (Excellent)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length163.7 ft (49.9 m)
Max Span81.7 ft (24.9 m)
Deck Width29.2 ft (8.9 m)
Deck Area444.1 sq m
Main Spans2
Year Built1973

Traffic

Avg Daily Traffic50 (2019)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last Inspection824
Inspection FrequencyEvery 24 months
OwnerCorps of Engineers
Historical SignificanceBridge is not eligible for the National Register
Structure NumberCEPNPWWA0LGRCON

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