Bridge conditions in Lamoille County, Vermont
127 inventoried bridges · 4 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
4 of the 127 bridges the federal inventory lists in Lamoille County are rated poor; the rest split 67 good and 56 fair.
- 4 of the 127 bridges in Lamoille County, Vermont, are rated in poor condition (3.1%) in the 2025 National Bridge Inventory, as of .
- 67 bridges (52.8%) are rated good and 56 (44.1%) fair.
- The median Lamoille County bridge was built in 1967.
- The busiest poor-rated bridge is Vt 00100 Ml over Gihon River (built 1932), carrying about 4,100 vehicles a day.
Good 52.8% · Fair 44.1% · Poor 3.1% of 127 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 00100 Ml over Gihon River | 1932 | 4,100 | Poor |
| C3023 over West Branch Little River | 1958 | 1,500 | Poor |
| C3043 over Miller Brook | 1948 | 400 | Poor |
| C3043 over Miller Brook | 1925 | 300 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Vt 00015 Ml over Centerville Brook | 2014 | 10,800 | Good |
| Vt 00100 Ml over Gold Brook | 2014 | 10,300 | Fair |
| Vt 00100 Ml over Moss Glen Brook | 1934 | 9,700 | Fair |
| Vt 00108 Ml over West Brook | 2016 | 9,600 | Good |
| Vt 00100 Ml over Ryder Brook | 2002 | 9,300 | Good |
| Alt Vt 00100 Ml over Lamoille River | 2014 | 8,800 | Good |
| Vt 00015 Ml over Lamoille River | 1950 | 8,400 | Fair |
| Vt 00015 Ml over Lamoille River | 1991 | 8,300 | Good |
| Vt 00015 Ml over Foote Brook | 1926 | 8,300 | Fair |
| Vt 00015 Ml over Gihon River | 2008 | 8,300 | 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.