US13 US64 over Flat Swamp
Martin County, North Carolina · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US13 US64 over Flat Swamp in Martin County, North Carolina, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
- It was built in 1999, making it 26 years old at the 2025 inventory.
- It carries about 9,000 vehicles a day (traffic count year 2018).
- Its listed owner is the state highway agency.
- It is one of 58 of the 124 inventoried bridges in Martin County rated good (46.8%); 4 (3.2%) are rated poor.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (35.83262, -77.28346)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 7 | Good condition |
Bridge details
| Structure | Continuous concrete culvert |
| Length | about 39 ft |
| Location | 0.8 Mi. E. of Jct. SR130 |
| NBI structure number | 000000001170264 |
| Condition class | Good |
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 |
| US13/64E over NC903 | 1999 | 8,200 | Fair |
| US13 US64E over Ross Swamp | 1999 | 8,200 | Fair |
| US13W US64W over Flat Swamp | 1998 | 7,800 | Good |
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.