Nh 25A over Connecticut River
Orange County, Vermont · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Nh 25A over Connecticut River in Orange County, Vermont, 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 1937 and reconstructed in 2002, making it 88 years old at the 2025 inventory.
- It carries about 3,547 vehicles a day (traffic count year 2020).
- Its listed owner is the state highway agency.
- It is one of 106 of the 209 inventoried bridges in Orange County rated fair (50.7%); 4 (1.9%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its class is unchanged from 2024 (fair), but component ratings moved: superstructure 6 to 5.
- Its most recent inspection on record is dated June 2024, on a 24-month routine inspection cycle.
- It has fracture-critical members (NBI item 92A): steel tension members without a redundant load path, which get their own scheduled inspections.
- 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 → (43.90717, -72.13952)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 6 | 5 | Fair condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Steel through arch |
| Length | about 433 ft |
| Location | Vermont State Line |
| NBI structure number | 200040B00109012 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | June 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
| Fracture critical (item 92A) | Yes |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Vermont department of transportation.
Busiest bridges in Orange County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 00089 Ml over I 89 over Vt 64 | 1970 | 20,400 | Fair |
| I 00089 Ml over I 89 over Vt 64 | 1970 | 20,400 | Fair |
| I 00089 Ml over I 89 over Th No 6 | 1968 | 16,700 | Good |
| I 00089 Ml over I 89 over Th No 1 | 1970 | 16,700 | Poor |
| I 00089 Ml over I 89 over Th No 1 | 1970 | 16,700 | Fair |
| I 00091 Ml over I 91 over Th No 14 | 1971 | 10,200 | Good |
All bridges nearby: Orange County, VT bridge conditions · every bridge in Orange County · Vermont bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.