SR1517 over I40
Johnston County, North Carolina · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SR1517 over I40 in Johnston 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 1987, making it 38 years old at the 2025 inventory.
- It carries about 2,350 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 163 of the 322 inventoried bridges in Johnston County rated fair (50.6%); 12 (3.7%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its class is unchanged from 2024 (fair), but component ratings moved: substructure 6 to 5.
- Its most recent inspection on record is dated September 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 → (35.55261, -78.57938)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 6 | 5 | Fair condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 205 ft |
| Location | 1.0 MI.S.NC50 |
| NBI structure number | 000000001010496 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | September 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | N: not over a waterway |
Source: FHWA National Bridge Inventory, 2025 data as reported by the North Carolina department of transportation.
Busiest bridges in Johnston County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I95 over Hannah Creek | 1970 | 65,000 | Fair |
| I95 over Mingo Swamp | 1970 | 59,000 | Fair |
| I40 over Pole Branch | 1988 | 48,000 | Fair |
| I95N over Neuse River | 1957 | 42,000 | Fair |
| I95 Sbl over Neuse River | 1955 | 42,000 | Fair |
| I40 over Pole Branch | 1987 | 41,500 | Good |
All bridges nearby: Johnston County, NC bridge conditions · every bridge in Johnston County · North Carolina bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.