S 16 over N Fork 1ST Hay Creek
Richland County, Montana · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- S 16 over N Fork 1ST Hay Creek in Richland County, Montana, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 5 (fair condition) on the 0-9 scale.
- It was built in 2003, making it 22 years old at the 2025 inventory.
- It carries about 1,131 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 66 of the 97 inventoried bridges in Richland County rated fair (68.0%); 4 (4.1%) 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 January 2025, 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 → (47.88006, -104.29944)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 5 | 5 | Fair condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 28 ft |
| Location | 13M NW Sidney |
| NBI structure number | P00062024+00271 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | January 2025 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Montana department of transportation.
Busiest bridges in Richland County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| S 16-holly St over Usrs Canal | 1999 | 5,874 | Fair |
| S 200 over First Hay Creek | 1986 | 4,499 | Fair |
| S 200 over Second Hay Creek | 1986 | 4,499 | Good |
| S 16-s Central Ave over Lone Tree Creek | 1974 | 3,968 | Fair |
| 14TH St SE over Lone Tree Creek | 1973 | 3,099 | Fair |
| S 16 over Usbr Main Canal | 1984 | 2,821 | Fair |
All bridges nearby: Richland County, MT bridge conditions · every bridge in Richland County · Montana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.