County Road over Bn Railroad
Pierce County, North Dakota · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- County Road over Bn Railroad in Pierce County, North Dakota, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1955, making it 70 years old at the 2025 inventory.
- It carries about 5 vehicles a day (traffic count year 2018).
- It is one of 2 of the 5 inventoried bridges in Pierce County rated fair (40.0%); 1 (20.0%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its class is unchanged from 2024 (fair), but component ratings moved: deck 7 to 6, superstructure 7 to 6.
- 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 → (47.87946, -100.00534)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 6 | Satisfactory condition |
| Superstructure | 7 | 6 | Satisfactory condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Timber stringer or multi-beam girder |
| Length | about 123 ft |
| Location | 4 South 8 East of Alymer |
| NBI structure number | 000000035113460 |
| Condition class | Fair |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | April 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | N: not over a waterway |
Source: FHWA National Bridge Inventory, 2025 data as reported by the North Dakota department of transportation.
Busiest bridges in Pierce County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Nd Highway 3 over Bnrr | 1937 | 570 | Good |
| Nd Highway 3 over Branch of Sheyenne River | 1953 | 530 | Good |
| Nd Highway 60 over Creek | 1964 | 400 | Fair |
| 53rd Ave NE over Creek | 1970 | 20 | Poor |
All bridges nearby: Pierce County, ND bridge conditions · every bridge in Pierce County · North Dakota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.