SR1159 over Ross Swamp
Martin County, North Carolina · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SR1159 over Ross Swamp in Martin County, North Carolina, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 2009, making it 16 years old at the 2025 inventory.
- It carries about 450 vehicles a day (traffic count year 2021).
- Its listed owner is the state highway agency.
- It is one of 62 of the 124 inventoried bridges in Martin County rated fair (50.0%); 4 (3.2%) are rated poor.
- 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 → (35.83802, -77.21189)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 8 | Very good condition |
| Superstructure | 8 | Very good condition |
| Substructure | 6 | Satisfactory condition |
Bridge details
| Structure | Prestressed concrete slab |
| Length | about 91 ft |
| Location | 0.8 Mi. N. of Jct SR1401 |
| NBI structure number | 000000001170075 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the North Carolina department of transportation.
Busiest bridges in Martin County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US13 US64 over Back Swamp Branch | 1999 | 10,000 | Fair |
| US13 US64E over Fork of Collie Creek | 1999 | 9,800 | Good |
| US13 US64E over US64ALT | 1999 | 9,000 | Good |
| US13 US64 over Flat Swamp | 1999 | 9,000 | Good |
| US13/64E over NC903 | 1999 | 8,200 | Fair |
| US13 US64E over Ross Swamp | 1999 | 8,200 | Fair |
All bridges nearby: Martin County, NC bridge conditions · every bridge in Martin County · North Carolina bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.