Rotary Drive over Boulding Branch
Guilford County, North Carolina · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Rotary Drive over Boulding Branch in Guilford County, North Carolina, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1920, making it 105 years old at the 2025 inventory.
- It carries about 2,200 vehicles a day (traffic count year 2021).
- Its listed owner is a city or municipal highway agency.
- It is one of 284 of the 744 inventoried bridges in Guilford County rated fair (38.2%); 33 (4.4%) 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 → (35.96382, -80.02537)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 5 | Fair condition |
| Superstructure | 5 | Fair condition |
| Substructure | 5 | Fair condition |
Bridge details
| Structure | Continuous concrete slab |
| Length | about 25 ft |
| Location | 0.05 Mi.s.jct.fairway Dr |
| NBI structure number | 000000000810415 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the North Carolina department of transportation.
Busiest bridges in Guilford County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I40 85 US29 70 220 over South Buffalo Creek | 1955 | 120,000 | Fair |
| I40 US421 over NC68 | 1981 | 120,000 | Fair |
| I40 & I85 SR3143 over North Alamance Creek | 1954 | 119,000 | Fair |
| I40 I85 over Rock Creek | 1954 | 119,000 | Fair |
| I40 I85 Bus US29 over Branch South Buffalo Crk | 1954 | 118,000 | Fair |
| I40 over SR4121 | 1976 | 115,000 | Fair |
All bridges nearby: Guilford County, NC bridge conditions · every bridge in Guilford County · North Carolina bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.