Tilthammer Mill Rd over Spout Run
Clarke County, Virginia · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Tilthammer Mill Rd over Spout Run in Clarke County, Virginia, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1957, making it 68 years old at the 2025 inventory.
- It carries about 218 vehicles a day (traffic count year 2018).
- Its listed owner is the state highway agency.
- It is one of 26 of the 38 inventoried bridges in Clarke County rated fair (68.4%); 1 (2.6%) 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 April 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 → (39.06579, -78.00326)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 5 | 5 | Fair condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Concrete tee beam |
| Length | about 97 ft |
| Location | 1.40 to 723 - 0.80 to 651 |
| NBI structure number | 000000000005431 |
| Condition class | Fair |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | April 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 Clarke County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Harry Byrd Hwy over Buck Marsh Run | 1973 | 23,921 | Good |
| Harry Byrd Hwy-wbl over NS Railway | 1975 | 23,226 | Fair |
| Harry Byrd Hwy-ebl over Shenandoah River | 1989 | 17,702 | Fair |
| Harry Byrd Hwy-ebl over NS Railway | 1975 | 17,702 | Poor |
| Harry Byrd Hwy-wbl over Shenandoah River | 1973 | 17,701 | Fair |
| Harry Byrd Hwy-ebl over Route 340 | 1975 | 16,971 | Fair |
All bridges nearby: Clarke County, VA bridge conditions · every bridge in Clarke County · Virginia bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.