Bridge conditions in Addison County, Vermont
143 inventoried bridges · 3 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Addison County tracks close to typical: 3 of its 143 inventoried bridges (2.1%) are rated poor, against a national rate of about 7%.
- 3 of the 143 bridges in Addison County, Vermont, are rated in poor condition (2.1%) in the 2025 National Bridge Inventory, as of .
- 66 bridges (46.2%) are rated good and 74 (51.7%) fair.
- The median Addison County bridge was built in 1964.
- The busiest poor-rated bridge is Vt 0022A Alt over Otter Creek (built 1934), carrying about 10,700 vehicles a day.
Good 46.2% · Fair 51.7% · Poor 2.1% of 143 bridges
Bridges rated poor
Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Vt 0022A Alt over Otter Creek | 1934 | 10,700 | Poor |
| C3006 over New Haven River | 1919 | 200 | Poor |
| C3039 over Lewis Creek | 1938 | 40 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 00007 Ml over Little Otter Creek | 1959 | 12,700 | Fair |
| US 00007 Ml over Lewis Creek | 1957 | 11,900 | Fair |
| Vt 0022A Alt over Otter Creek | 1934 | 10,700 | Poor |
| Vt 30 & City Merrw over VT30 & Merrw over Vt RR | 2021 | 9,000 | Good |
| US 00007 Ml over Middlebury River | 1964 | 8,500 | Fair |
| US 00007 Ml over New Haven River | 1960 | 8,300 | Fair |
| Vt 00030 Ml over Otter Creek | 1893 | 8,200 | Fair |
| US 00007 Ml over Leicester River | 1943 | 5,900 | Fair |
| Vt 00116 Ml over New Haven River | 2000 | 5,200 | Good |
| Vt 00116 Ml over New Haven River | 2002 | 5,200 | Good |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of Vermont: Vermont bridge conditions by county · every download on the data page.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.