Vermont bridge conditions
2,866 inventoried bridges · 114 rated poor · county by county
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- 114 of Vermont's 2,866 inventoried bridges are rated in poor condition (4.0%) in the 2025 National Bridge Inventory, as of .
- 1,348 bridges (47.0%) are rated good and 1,404 (49.0%) fair.
- The national poor rate is about 6.7%; Vermont is at or below it (see all states ranked).
- The busiest poor-rated bridge in the state is I 00091 Ml over US 4 Vt 14 Necr Whtr in Windsor County, carrying about 21,000 vehicles a day.
By the measure that matters most - the most traffic on a poor rating - it is I 00091 Ml over US 4 Vt 14 Necr Whtr in Windsor County, built 1967, carrying about 21,000 vehicles a day. That is a repair-priority flag, not a collapse warning: what a poor rating does and does not mean. See the worst bridge in every state.
Good 47.0% · Fair 49.0% · Poor 4.0% of 2,866 bridges
Bridge conditions by county
Sorted by the number of poor-rated bridges. Click any county for its full bridge list.
| County | Bridges | Rated poor | Poor % |
|---|---|---|---|
| Windsor County | 483 | 26 | 5.4% |
| Windham County | 338 | 23 | 6.8% |
| Caledonia County | 248 | 15 | 6.0% |
| Washington County | 248 | 11 | 4.4% |
| Rutland County | 266 | 7 | 2.6% |
| Franklin County | 149 | 6 | 4.0% |
| Orleans County | 182 | 6 | 3.3% |
| Chittenden County | 184 | 4 | 2.2% |
| Lamoille County | 127 | 4 | 3.1% |
| Orange County | 209 | 4 | 1.9% |
| Addison County | 143 | 3 | 2.1% |
| Essex County | 66 | 3 | 4.5% |
| Bennington County | 215 | 2 | 0.9% |
| Grand Isle County | 8 | 0 | 0.0% |
The 25 busiest poor-rated bridges in Vermont
Frequently asked questions
How many bridges in Vermont are in poor condition?
114 of Vermont's 2,866 inventoried highway bridges are rated in poor condition (4.0%) in the 2025 National Bridge Inventory. 'Poor' is FHWA's classification for a bridge whose deck, superstructure, or substructure is rated 4 or lower on the 0-9 scale; it was formerly called 'structurally deficient'.
Are the poor-rated bridges in Vermont safe to drive on?
A poor rating flags advanced deterioration that needs repair or close monitoring; it does not by itself mean a bridge is unsafe. Bridges judged unsafe are closed or restricted to lighter loads by the owner. Inspections continue on all open bridges, generally at least every 24 months under the National Bridge Inspection Standards.
Source: FHWA National Bridge Inventory, 2025 vintage, reported by the Vermont DOT.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.