Bridge conditions in Chittenden County, Vermont
184 inventoried bridges · 4 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Chittenden County tracks close to typical: 4 of its 184 inventoried bridges (2.2%) are rated poor, against a national rate of about 7%.
- 4 of the 184 bridges in Chittenden County, Vermont, are rated in poor condition (2.2%) in the 2025 National Bridge Inventory, as of .
- 90 bridges (48.9%) are rated good and 90 (48.9%) fair.
- The median Chittenden County bridge was built in 1964.
- The busiest poor-rated bridge is US 00002 Ml over I 89 Under US 2 (built 1964), carrying about 17,800 vehicles a day.
Good 48.9% · Fair 48.9% · Poor 2.2% of 184 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 |
|---|---|---|---|
| US 00002 Ml over I 89 Under US 2 | 1964 | 17,800 | Poor |
| Tr 05 Fas 212 over Hollow Brook | 1940 | 1,600 | Poor |
| C2009 over Laplatte River | 1939 | 200 | Poor |
| C3008 over Laplatte River | 1995 | 10 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 00089 Ml over Winooski River | 1962 | 56,400 | Good |
| I 00089 Ml over Winooski River | 1962 | 56,400 | Good |
| I 00089 Ml over I 89 over Necrr | 1962 | 56,400 | Good |
| I 00089 Ml over I 89 over Necrr | 1962 | 56,400 | Good |
| I 00089 Ml over I 89 over Vt 15 | 1962 | 56,400 | Fair |
| I 00089 Ml over I 89 over Vt 15 | 1962 | 56,400 | Fair |
| I 00089 Ml over Muddy Brook | 1963 | 41,000 | Good |
| I 00089 Ml over Muddy Brook | 1963 | 41,000 | Good |
| I 00089 Ml over I 89 over Dorset St | 1963 | 41,000 | Fair |
| I 00089 Ml over I 89 over Dorset St | 1963 | 41,000 | Fair |
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.