S 556-thompson R R over Big Rock Creek

Good Condition17 years old56 vehicles/day

Location

StateMontana
CountySanders
Location35m SW Marion
CarriesS 556-thompson R R
CrossesBig Rock Creek
Coordinates47.87225, -114.99794

Condition Ratings

Overall ConditionGood
Deck7 (Good)
Superstructure8 (Very Good)
Substructure7 (Good)
Channel/Waterway9 (Excellent)
Scour Critical5 — Stable for scour

Physical Characteristics

MaterialPrestressed Concrete
DesignTee Beam
Total Length49.2 ft (15 m)
Max Span49.2 ft (15 m)
Deck Width19.4 ft (5.9 m)
Deck Area88.5 sq m
Main Spans1
Year Built2009

Traffic

Avg Daily Traffic56 (2023)
Lanes On Bridge2

Inspection & Ownership

Last Inspection824
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure NumberS00556028+01001

Nearby Bridges

Bend RD over Thompson River 040 3.0 mi Fair S 556-thompson R R over Thompson River 3.6 mi Good RD 7593 over Fishtrap Creek 3.7 mi Fair RD 7593 over Radio CR 4.7 mi Fair S 556-thompson R R over Thompson River 4.9 mi Fair