I 15 over Dog Creek
Fair Condition59 years old4,290 vehicles/day
Location
| State | Montana |
| County | Lewis and Clark |
| Location | 1m S Craig |
| Carries | I 15 |
| Crosses | Dog Creek |
| Coordinates | 47.06834, -111.97357 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 6 (Satisfactory) |
| Culvert | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Culvert |
| Total Length | 23.0 ft (7 m) |
| Max Span | 9.5 ft (2.9 m) |
| Deck Width | 82.0 ft (25 m) |
| Deck Area | 175 sq m |
| Main Spans | 2 |
| Year Built | 1967 |
Traffic
| Avg Daily Traffic | 4,290 (2023) |
| Truck Traffic | 17% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 424 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | I00015233+06001 |