C3024 over Mill Brook
Franklin County, Vermont · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- C3024 over Mill Brook in Franklin County, Vermont, 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 1978, making it 47 years old at the 2025 inventory.
- It carries about 200 vehicles a day (traffic count year 2019).
- Its listed owner is a town or township highway agency.
- It is one of 65 of the 149 inventoried bridges in Franklin County rated fair (43.6%); 6 (4.0%) 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 August 2024, 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 → (44.66812, -73.00757)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Concrete slab |
| Length | about 24 ft |
| Location | 0.1 Mi to Jct C3 Th 2 |
| NBI structure number | 100604002306041 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | August 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Vermont department of transportation.
Busiest bridges in Franklin County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 00089 Ml over I 89 over Th No 6 | 1967 | 23,400 | Good |
| I 00089 Ml over I 89 over Th No 6 | 1967 | 23,400 | Good |
| I 00089 Ml over I 89 over Necrr | 1967 | 22,000 | Fair |
| I 00089 Ml over I 89 over Necrr | 1967 | 22,000 | Fair |
| I 00089 Ml over I 89 over Vt 104 | 2002 | 22,000 | Good |
| I 00089 Ml over I 89 over Vt 104 | 2002 | 22,000 | Good |
All bridges nearby: Franklin County, VT bridge conditions · every bridge in Franklin County · Vermont bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.