Bridge conditions in Windham County, Connecticut
264 inventoried bridges · 23 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
23 of the 264 bridges the federal inventory lists in Windham County are rated poor; the rest split 79 good and 162 fair.
- 23 of the 264 bridges in Windham County, Connecticut, are rated in poor condition (8.7%) in the 2025 National Bridge Inventory, as of .
- 79 bridges (29.9%) are rated good and 162 (61.4%) fair.
- The median Windham County bridge was built in 1962.
- The busiest poor-rated bridge is Buckley Hill Road over French River (built 1937), carrying about 2,300 vehicles a day.
Good 29.9% · Fair 61.4% · Poor 8.7% of 264 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.
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Interstate-395 NB over US Route 6 | 1963 | 129,000 | Fair |
| Interstate 95 over Noroton River | 1958 | 123,700 | Fair |
| Interstate-395 over Roper Road | 1958 | 32,700 | Fair |
| Interstate-395 over Plainfield Road | 1958 | 30,400 | Fair |
| Interstate-395 over Mill Brook | 1958 | 30,000 | Good |
| Interstate-395 over Lathrop Brook | 1958 | 30,000 | Good |
| Interstate-395 over Abandoned Railroad | 1958 | 27,800 | Good |
| Interstate-395 over SR 647 (lathrop Road) | 1958 | 25,000 | Fair |
| Interstate-395 over Route 14A | 1958 | 24,900 | Fair |
| Interstate-395 over Culver Brook | 1966 | 21,000 | Fair |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
Every bridge in Windham County → - all 264, busiest first, each with its own condition record.
All of Connecticut: Connecticut 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.