I 15 over Birch Creek

Fair Condition53 years old3,852 vehicles/day

Location

StateMontana
CountyBeaverhead
Location13m N Dillon
CarriesI 15
CrossesBirch Creek
Coordinates45.41176, -112.70824

Condition Ratings

Overall ConditionFair
Channel/Waterway6 (Satisfactory)
Culvert6 (Satisfactory)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialSteel
DesignCulvert
Total Length25.6 ft (7.8 m)
Max Span10.2 ft (3.1 m)
Deck Area188.8 sq m
Main Spans2
Year Built1973

Traffic

Avg Daily Traffic3,852 (2023)
Truck Traffic24%
Lanes On Bridge4

Inspection & Ownership

Last Inspection424
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure NumberI00015077+02001

Nearby Bridges

I 15 over Sep County RD 203 1.7 mi Fair I 15 over Sep County RD 203 1.7 mi Good I 15 over Int Apex-birch CR RD 2.3 mi Fair I 15 over Int Apex-birch CR RD 2.3 mi Fair Birch Creek RD over Birch Creek 3.6 mi Good Burma RD over Big Hole River 073 4.4 mi Fair Burma RD over Big Hole River Over 062 4.5 mi Good