C3009 over Mill Brook
Orleans County, Vermont · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- C3009 over Mill Brook in Orleans County, Vermont, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
- It was built in 1998, making it 27 years old at the 2025 inventory.
- It carries about 90 vehicles a day (traffic count year 2019).
- Its listed owner is a town or township highway agency.
- It is one of 88 of the 182 inventoried bridges in Orleans County rated good (48.4%); 6 (3.3%) 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 2023, on a 24-month routine inspection cycle.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (44.89063, -72.43271)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 8 | Very good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 8 | 8 | Very good condition |
Bridge details
| Structure | Concrete slab |
| Length | about 36 ft |
| Location | 0.50 Mi West of Jct TH1 |
| NBI structure number | 101018001410181 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | August 2023 |
| 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 Orleans County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 00005 Ml over Lake Memphremagog | 1927 | 9,400 | Fair |
| US 00005 Ml over I 91 Under US 5 | 1970 | 9,300 | Fair |
| I 00091 Ml over I 91 over US 5 | 1971 | 7,900 | Fair |
| I 00091 Ml over I 91 over US 5 | 1971 | 7,900 | Fair |
| I 00091 Ml over TH38 & Crlrr & Barton Rv | 1971 | 7,900 | Fair |
| I 00091 Ml over TH38 & Crlrr & Barton Rv | 1971 | 7,900 | Fair |
All bridges nearby: Orleans County, VT bridge conditions · every bridge in Orleans County · Vermont bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.