159th Ave SW over Knutson Creek
Golden Valley County, North Dakota · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- 159th Ave SW over Knutson Creek in Golden Valley County, North Dakota, 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 1984, making it 41 years old at the 2025 inventory.
- It carries about 15 vehicles a day (traffic count year 2017).
- Its listed owner is the county highway agency.
- It is one of 20 of the 34 inventoried bridges in Golden Valley County rated fair (58.8%); 0 (0.0%) 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 May 2023, 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 → (46.99779, -103.78929)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 24 ft |
| Location | 6 N. 2 E. Sentinel Butte |
| NBI structure number | 000000017113231 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | May 2023 |
| 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 North Dakota department of transportation.
Busiest bridges in Golden Valley County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Interstate 94 over Little Beaver Creek | 2024 | 4,034 | Good |
| Interstate 94 over Creek | 1967 | 2,850 | Good |
| Nd Highway 16 over I-94/BEACH Interchange | 1968 | 2,200 | Fair |
| Interstate 94 over Co. Hwy/boys Ranch Int. | 1968 | 1,425 | Fair |
| Interstate 94 over Co. Hwy/boys Ranch Int. | 1968 | 1,425 | Fair |
| Interstate 94 over Co.hwy/camel Hump Sep. | 1968 | 1,425 | Good |
All bridges nearby: Golden Valley County, ND bridge conditions · every bridge in Golden Valley County · North Dakota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.