Nd Highway 1806 over Tobacco Garden Creek
McKenzie County, North Dakota · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Nd Highway 1806 over Tobacco Garden Creek in McKenzie County, North Dakota, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1981, making it 44 years old at the 2025 inventory.
- It carries about 80 vehicles a day (traffic count year 2019).
- Its listed owner is the state highway agency.
- It is one of 47 of the 136 inventoried bridges in McKenzie County rated fair (34.6%); 1 (0.7%) 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 November 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 → (48.08187, -103.1278)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous prestressed concrete single box beam |
| Length | about 98 ft |
| Location | 22 North Nd 23 |
| NBI structure number | 1806288840 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | November 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 McKenzie County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US Highway 85 over Creek | 2014 | 12,880 | Fair |
| US Highway 85 over Creek | 2014 | 12,880 | Fair |
| US Highway 85 over Creek | 2014 | 12,880 | Fair |
| US Highway 85 over Creek | 2014 | 12,880 | Good |
| US Highway 85 over Drain | 2016 | 10,545 | Good |
| US Highway 85 over Wildlife Crossing | 2017 | 10,545 | Good |
All bridges nearby: McKenzie County, ND bridge conditions · every bridge in McKenzie County · North Dakota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.