Bridge conditions in Orleans County, Vermont
182 inventoried bridges · 6 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Orleans County tracks close to typical: 6 of its 182 inventoried bridges (3.3%) are rated poor, against a national rate of about 7%.
- 6 of the 182 bridges in Orleans County, Vermont, are rated in poor condition (3.3%) in the 2025 National Bridge Inventory, as of .
- 88 bridges (48.4%) are rated good and 88 (48.4%) fair.
- The median Orleans County bridge was built in 1971.
- The busiest poor-rated bridge is Vt 00100 Ml over East Branch Missisquoi (built 1929), carrying about 2,600 vehicles a day.
Good 48.4% · Fair 48.4% · Poor 3.3% of 182 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 East Branch Missisquoi | 1929 | 2,600 | Poor |
| Vt 00100 Ml over Taft Brook | 1973 | 1,700 | Poor |
| Tr 01 Fas 308 over East Brook | 1929 | 590 | Poor |
| C3039 over Mud Brook | 1940 | 250 | Poor |
| C3055 over Black River | 1925 | 50 | Poor |
| C3015 over Sucker Brook | 2001 | 10 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 00005 Ml over Lake Memphremagog | 1927 | 9,400 | Fair |
| US 00005 Ml over I 91 Under US 5 | 1970 | 9,300 | Fair |
| I 00091 Ml over I 91 over US 5 | 1971 | 7,900 | Fair |
| I 00091 Ml over I 91 over US 5 | 1971 | 7,900 | Fair |
| I 00091 Ml over TH38 & Crlrr & Barton Rv | 1971 | 7,900 | Fair |
| I 00091 Ml over TH38 & Crlrr & Barton Rv | 1971 | 7,900 | Fair |
| I 00091 Ml over Barton River | 1971 | 6,200 | Good |
| I 00091 Ml over I 91 over Th No 4 | 1971 | 6,200 | Fair |
| I 00091 Ml over I 91 over Th No 4 | 1971 | 6,200 | Fair |
| I 00091 Ml over I 91 over Th No 5 | 1971 | 6,200 | 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.