US1NBL over Seaboard RR
Wake County, North Carolina · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US1NBL over Seaboard RR in Wake County, North Carolina, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1941, making it 84 years old at the 2025 inventory.
- It carries about 45,500 vehicles a day (traffic count year 2021).
- Its listed owner is the state highway agency.
- It is one of 42 of the 800 inventoried bridges in Wake County rated poor (5.2%); 42 (5.2%) are rated poor.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (35.9256, -78.54281)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 5 | Fair condition |
| Superstructure | 4 | Poor condition |
| Substructure | 4 | Poor condition |
Bridge details
| Structure | Concrete tee beam |
| Length | about 208 ft |
| Location | 1.3MI S Jct US1A |
| NBI structure number | 000000001830312 |
| Condition class | Poor |
Source: FHWA National Bridge Inventory, 2025 data as reported by the North Carolina department of transportation.
Busiest bridges in Wake County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I40 Wbl over Crabtree Creek | 1969 | 133,000 | Fair |
| I40 Wbl over SR1728 | 1981 | 133,000 | Good |
| I440 over SR1676(LAKE Boone Trail) | 1960 | 120,000 | Fair |
| I440 over US70 | 1960 | 120,000 | Fair |
| I-40 over Stirrup Iron Creek | 1969 | 120,000 | Fair |
| I40 over Big Branch Creek | 1986 | 119,000 | Fair |
All bridges nearby: Wake County, NC bridge conditions · every bridge in Wake County · North Carolina bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.