I-66 over Molly Booth Run
Warren County, Virginia · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I-66 over Molly Booth Run in Warren County, Virginia, 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 1970, making it 55 years old at the 2025 inventory.
- It carries about 34,901 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 50 of the 84 inventoried bridges in Warren County rated fair (59.5%); 1 (1.2%) 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 → (38.99713, -78.26762)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 6 | Satisfactory condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 23 ft |
| Location | 1.75 Fred Co- 4.77 to 340 |
| NBI structure number | 000000000018709 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Virginia department of transportation.
Busiest bridges in Warren County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| N Shenandoah Ave over N F Shen River & NS Rwy | 1941 | 31,222 | Good |
| Winchester Rd over Crooked Run | 1941 | 31,222 | Fair |
| I-81 Nbl over Water Plant Rd (rt 840) | 1965 | 30,782 | Fair |
| N Shen Ave-340/522 over S F Shen River & NS Rwy | 2016 | 29,273 | Good |
| I-81 Sbl over Water Plant Rd (rt 840) | 2023 | 25,185 | Good |
| Route 66 Ebl over Manassas Run & Rte. 647 | 1979 | 19,264 | Fair |
All bridges nearby: Warren County, VA bridge conditions · every bridge in Warren County · Virginia bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.