Carlson RD over Flat Creek 034
Fair Condition88 years old100 vehicles/day
Location
| State | Montana |
| County | Cascade |
| Location | 12m E Cascade |
| Carries | Carlson RD |
| Crosses | Flat Creek 034 |
| Coordinates | 47.26206, -111.48503 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 8 (Very Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 24.0 ft (7.3 m) |
| Max Span | 23.0 ft (7 m) |
| Deck Width | 26.2 ft (8 m) |
| Deck Area | 58.4 sq m |
| Main Spans | 1 |
| Year Built | 1938 (reconstructed 1970) |
Traffic
| Avg Daily Traffic | 100 (2025) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2024 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | L07417001+09001 |