Mt 200 over Dog Creek
Garfield County, Montana · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Mt 200 over Dog Creek in Garfield County, Montana, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1985, making it 40 years old at the 2025 inventory.
- It carries about 483 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 14 of the 26 inventoried bridges in Garfield County rated fair (53.8%); 2 (7.7%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated April 2024, on a 24-month routine inspection cycle.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (46.99438, -107.81941)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Steel culvert |
| Length | about 27 ft |
| Location | 4M E Mosby |
| NBI structure number | P00057162+00001 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | April 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 4: foundations stable, field review says exposed foundations need protection |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Montana department of transportation.
Busiest bridges in Garfield County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| S 200-jordan Ave over Big Dry Creek | 1993 | 1,078 | Good |
| S 200 over Dugout Coulee | 1973 | 551 | Good |
| S 200 over Little Dry Creek | 2022 | 537 | Good |
| S 200 over Drainage | 1938 | 537 | Fair |
| S 200 over Vail Creek-stockpass | 2004 | 520 | Good |
| S 200 over Oliver Coulee | 2004 | 520 | Good |
All bridges nearby: Garfield County, MT bridge conditions · every bridge in Garfield County · Montana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.