C3045 over Calendar Brook
Caledonia County, Vermont · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- C3045 over Calendar Brook in Caledonia County, Vermont, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 2 (critical condition) on the 0-9 scale.
- It was built in 1926, making it 99 years old at the 2025 inventory.
- It carries about 150 vehicles a day (traffic count year 2019).
- Its listed owner is a town or township highway agency.
- It is one of 15 of the 248 inventoried bridges in Caledonia County rated poor (6.0%); 15 (6.0%) are rated poor.
- Its traffic status in the 2025 inventory is closed to all traffic (NBI item 41).
- It was rated fair in the 2024 inventory and is now poor (substructure 6 to 2).
- Status change: newly closed since 2024.
- Its most recent inspection on record is dated September 2024, on a 24-month routine inspection cycle.
- It is coded scour critical (NBI item 113 = 3): scour critical: foundations unstable for the assessed or calculated scour.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (44.61811, -72.01551)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 6 | 2 | Critical condition |
Bridge details
| Structure | Concrete tee beam |
| Length | about 43 ft |
| Location | 0.1 Mi Jct Th 45 + Th 1 |
| NBI structure number | 100314000403141 |
| Condition class | Poor |
| Traffic status (item 41) | Closed to all traffic |
| Last inspection (item 90) | September 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 3: scour critical: foundations unstable for the assessed or calculated scour |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Vermont department of transportation.
Busiest bridges in Caledonia County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 00005 Ml over Passumpsic River | 1972 | 12,200 | Good |
| I 00091 Ml over I 91 over Th 10 Brk | 1975 | 11,900 | Good |
| I 00091 Ml over I 91 over Th 10 Brk | 1975 | 11,900 | Good |
| I 00091 Ml over I 91 over US 5 | 1974 | 11,900 | Fair |
| I 00091 Ml over I 91 over US 5 | 1974 | 11,900 | Good |
| I 00091 Ml over I 91 over US 5 | 1974 | 11,900 | Fair |
All bridges nearby: Caledonia County, VT bridge conditions · every bridge in Caledonia County · Vermont bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.