SBL ColsonChRd/620 over Rte I -77
Carroll County, Virginia · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SBL ColsonChRd/620 over Rte I -77 in Carroll County, Virginia, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1977, making it 48 years old at the 2025 inventory.
- It carries about 1,361 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 92 of the 161 inventoried bridges in Carroll County rated fair (57.1%); 2 (1.2%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (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 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 → (36.78293, -80.8308)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous steel frame |
| Length | about 319 ft |
| Location | 0.38-Rte743; 0.82-Rte932 |
| NBI structure number | 000000000004632 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | October 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | N: not over a waterway |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Virginia department of transportation.
Busiest bridges in Carroll County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Route I-77 over Handy Creek | 1977 | 39,786 | Fair |
| Route I-77 over E Frk Little Reed Isl Cr | 1977 | 33,278 | Fair |
| NBL Rte. I-77 over Rt58&221/Carrollton Pike | 1978 | 22,023 | Fair |
| Nbl Route 0077 over Pleasant View Rd/Rt 743 | 1977 | 21,693 | Fair |
| Sbl Route 0077 over Rte 148_CHANCES Creek Rd | 1976 | 20,539 | Fair |
| SBL Route I-77 over Lambsburg Rd./Rte. 620 | 1976 | 20,539 | Fair |
All bridges nearby: Carroll County, VA bridge conditions · every bridge in Carroll County · Virginia bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.