Stone Mtn.rd. over Stone Mountain Creek
Alleghany County, North Carolina · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Stone Mtn.rd. over Stone Mountain Creek in Alleghany County, North Carolina, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1960, making it 65 years old at the 2025 inventory.
- It carries about 100 vehicles a day (traffic count year 2000).
- It is one of 17 of the 117 inventoried bridges in Alleghany County rated poor (14.5%); 17 (14.5%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated October 2023, on a 12-month routine inspection cycle.
- It is coded scour critical (NBI item 113 = 3): scour critical: foundations unstable for the assessed or calculated scour.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (36.39144, -81.02905)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 4 | 4 | Poor condition |
| Substructure | 4 | 4 | Poor condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 25 ft |
| Location | 2.6 MI.N.JCT.SR1100 |
| NBI structure number | 000000000050304 |
| Condition class | Poor |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | October 2023 |
| Inspection interval (item 91) | 12 months |
| Scour (item 113) | 3: scour critical: foundations unstable for the assessed or calculated scour |
Source: FHWA National Bridge Inventory, 2025 data as reported by the North Carolina department of transportation.
Busiest bridges in Alleghany County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US21 over Little River | 1920 | 7,200 | Fair |
| US21 over Brush Creek | 1997 | 3,700 | Good |
| US21 over Glade Creek | 2016 | 3,700 | Good |
| US21 over Laurel Branch | 2016 | 3,300 | Good |
| SR1206 over Bledsoe Creek | 1997 | 3,100 | Good |
| SR1206 over Bledsoe Creek | 1997 | 3,100 | Good |
All bridges nearby: Alleghany County, NC bridge conditions · every bridge in Alleghany County · North Carolina bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.