Kerr Dam RD over Irrigation Canal
Good Condition31 years old2,737 vehicles/day
Location
| State | Montana |
| County | Lake |
| Location | 2m SW Polson |
| Carries | Kerr Dam RD |
| Crosses | Irrigation Canal |
| Coordinates | 47.66495, -114.18564 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 37.1 ft (11.3 m) |
| Max Span | 35.1 ft (10.7 m) |
| Deck Width | 36.1 ft (11 m) |
| Deck Area | 124.3 sq m |
| Main Spans | 1 |
| Year Built | 1995 |
Traffic
| Avg Daily Traffic | 2,737 (2023) |
| Truck Traffic | 1% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 324 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | S00354002+09501 |