Nd Highway 18 over Goose River
Traill County, North Dakota · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Nd Highway 18 over Goose River in Traill County, North Dakota, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1966 and reconstructed in 1983, making it 59 years old at the 2025 inventory.
- It carries about 4,800 vehicles a day (traffic count year 2019).
- Its listed owner is the state highway agency.
- It is one of 75 of the 147 inventoried bridges in Traill County rated fair (51.0%); 26 (17.7%) 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 September 2023, on a 24-month routine inspection cycle.
- It is coded scour critical (NBI item 113 = 3): scour critical: foundations unstable for the assessed or calculated scour.
- 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 → (47.49797, -97.33824)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 174 ft |
| Location | City of Mayville |
| NBI structure number | 0018122478 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | September 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 3: scour critical: foundations unstable for the assessed or calculated scour |
Source: FHWA National Bridge Inventory, 2025 data as reported by the North Dakota department of transportation.
Busiest bridges in Traill County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Interstate 29 over North Branch Elm River | 2021 | 11,635 | Good |
| Interstate 29 over Buffalo Coulee | 1969 | 9,400 | Good |
| Interstate 29 over Branch of Buffalo Coulee | 1969 | 9,100 | Good |
| Interstate 29 over Branch of Buffalo Coulee | 1969 | 9,100 | Good |
| Interstate 29 over Goose River | 1970 | 4,550 | Poor |
| Interstate 29 over Goose River | 1970 | 4,550 | Poor |
All bridges nearby: Traill County, ND bridge conditions · every bridge in Traill County · North Dakota bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.