RD 431 over Twomile Creek

Fair Condition67 years old40 vehicles/day

Location

StateMontana
CountyMineral
LocationTwomile CR
CarriesRD 431
CrossesTwomile Creek
Coordinates47.29487, -115.17342

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure7 (Good)
Substructure7 (Good)
Channel/Waterway6 (Satisfactory)
Scour Critical4 — Foundations need monitoring

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length24.3 ft (7.4 m)
Max Span23.0 ft (7 m)
Deck Width15.4 ft (4.7 m)
Deck Area34.8 sq m
Main Spans1
Year Built1959

Traffic

Avg Daily Traffic40
Lanes On Bridge1

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerU.S. Forest Service
Historical SignificanceHistorical significance is not determined
Structure Number011607000000087

Nearby Bridges

RD 431 over ST Regis River 0.2 mi Fair I 90 over Int Two Mile-st Regis R 0.4 mi Fair I 90 over St. Regis River 0.4 mi Fair I 90 over St. Regis River 0.4 mi Fair I 90 over Int Two Mile-st Regis R 0.4 mi Fair I 90 over St. Regis Rvr-int Ramp 0.5 mi Fair I 90 over St. Regis River 0.6 mi Fair I 90 over St. Regis River 0.6 mi Fair I 90 over St. Regis River 0.8 mi Good I 90 EB over St. Regis River 1.6 mi Fair