Canal Rd over Deadman Supply Canal
Wheatland County, Montana · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Canal Rd over Deadman Supply Canal in Wheatland County, Montana, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1997, making it 28 years old at the 2025 inventory.
- It carries about 100 vehicles a day (traffic count year 2025).
- Its listed owner is the county highway agency.
- It is one of 4 of the 27 inventoried bridges in Wheatland County rated poor (14.8%); 4 (14.8%) are rated poor.
- Its traffic status in the 2025 inventory is open, posting recommended but not legally implemented (NBI item 41).
- It does not appear under this structure number in the 2024 inventory (a new or renumbered structure).
- Its most recent inspection on record is dated August 2024, on a 24-month routine inspection cycle.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (46.34442, -109.48871)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 4 | Poor condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 40 ft |
| Location | 1.5M E Shawmut |
| NBI structure number | 000000202408098 |
| Condition class | Poor |
| Traffic status (item 41) | Open, posting recommended but not legally implemented |
| Last inspection (item 90) | August 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Montana department of transportation.
Busiest bridges in Wheatland County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 191 over RR | 2009 | 2,316 | Good |
| Third St NE over Abandoned Rr-antelope CR | 1939 | 2,063 | Poor |
| US 191 over Musselshell River | 1969 | 805 | Good |
| US 191 over Abandoned RR | 1969 | 805 | Good |
| US 191 over Drainage | 1942 | 706 | Fair |
| US 191 over S Fork American Fork | 1941 | 706 | Poor |
All bridges nearby: Wheatland County, MT bridge conditions · every bridge in Wheatland County · Montana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.