SR3109 over Little Brier Creek
Wake County, North Carolina · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SR3109 over Little Brier Creek in Wake County, North Carolina, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1994, making it 31 years old at the 2025 inventory.
- It carries about 25,500 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 300 of the 800 inventoried bridges in Wake County rated fair (37.5%); 42 (5.2%) 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 → (35.90247, -78.78987)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous concrete culvert |
| Length | about 58 ft |
| Location | 0.1MI. E. SR1645 |
| NBI structure number | 000000001831011 |
| Condition class | Fair |
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.