Bonsack Rd./Rte603 over Cooks Creek
Roanoke County, Virginia · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Bonsack Rd./Rte603 over Cooks Creek in Roanoke County, Virginia, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1921, making it 104 years old at the 2025 inventory.
- It carries about 606 vehicles a day (traffic count year 2019).
- Its listed owner is the state highway agency.
- It is one of 124 of the 207 inventoried bridges in Roanoke County rated fair (59.9%); 1 (0.5%) 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 August 2023, on a 24-month routine inspection cycle.
- 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 → (37.32183, -79.87067)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous concrete slab |
| Length | about 43 ft |
| Location | 0.00-Rte606; 0.10-Rte631 |
| NBI structure number | 000000000014974 |
| Condition class | Fair |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | August 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Virginia department of transportation.
Busiest bridges in Roanoke County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Route 0581 over Walker Avenue | 1966 | 73,663 | Fair |
| Route 581 over Routes 11; 116 & 221 | 1968 | 73,663 | Fair |
| Routes 581 & 220 over RTEs 11; 116 & 460 | 1965 | 73,429 | Fair |
| Route 0581 over Tazewell Avenue | 1968 | 67,101 | Fair |
| Route 0581 over Kimball Avenue | 1968 | 67,101 | Fair |
| Roy Webber EXP/220 over Wonju Steet | 1977 | 62,286 | Fair |
All bridges nearby: Roanoke County, VA bridge conditions · every bridge in Roanoke County · Virginia bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.