Gibson RD over Rock Creek 029

Fair Condition47 years old31 vehicles/day

Location

StateMontana
CountyCarbon
Location1m E Rockvale
CarriesGibson RD
CrossesRock Creek 029
Coordinates45.52092, -108.83685

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure7 (Good)
Substructure6 (Satisfactory)
Channel/Waterway6 (Satisfactory)
Scour Critical5 — Stable for scour

Physical Characteristics

MaterialPrestressed Concrete
DesignTee Beam
Total Length139.1 ft (42.4 m)
Max Span67.9 ft (20.7 m)
Deck Width25.9 ft (7.9 m)
Deck Area335.0 sq m
Main Spans2
Year Built1979

Traffic

Avg Daily Traffic31 (2023)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last Inspection923
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure NumberL05304001+07001

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