US158 over Duke Swamp
Gates County, North Carolina · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US158 over Duke Swamp in Gates County, North Carolina, 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 1967, making it 58 years old at the 2025 inventory.
- It carries about 3,700 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 22 of the 41 inventoried bridges in Gates County rated fair (53.7%); 1 (2.4%) 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 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 → (36.44451, -76.62433)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 135 ft |
| Location | 0.7 Mi. W. of Jct. NC32 |
| NBI structure number | 000000000730021 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | January 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the North Carolina department of transportation.
Busiest bridges in Gates County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US13N over Buckhorn Creek | 2013 | 3,650 | Good |
| US13S US158S over Buckhorn Creek | 2015 | 3,650 | Good |
| US158 over Jones Pond Creek | 1960 | 3,100 | Fair |
| NC37 over Bennetts Creek | 1993 | 3,000 | Fair |
| US158 over Raynor Swamp | 1967 | 3,000 | Good |
| NC32 over Trotman Creek | 1952 | 2,500 | Fair |
All bridges nearby: Gates County, NC bridge conditions · every bridge in Gates County · North Carolina bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.