Bridge conditions in Oswego County, New York
234 inventoried bridges · 32 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
About one in 7 bridges in Oswego County is rated in poor condition: 32 of 234 on the federal inventory, one of the higher shares in New York.
- 32 of the 234 bridges in Oswego County, New York, are rated in poor condition (13.7%) in the 2025 National Bridge Inventory, as of .
- 68 bridges (29.1%) are rated good and 134 (57.3%) fair.
- The median Oswego County bridge was built in 1978.
- The busiest poor-rated bridge is Rte I81 over Oneida Lake (built 1959), carrying about 16,277 vehicles a day.
Good 29.1% · Fair 57.3% · Poor 13.7% of 234 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 |
|---|---|---|---|
| 3 3 34012012 over Riverside Ave | 2014 | 21,433 | Fair |
| Rte 3 over Oswego Canal | 1969 | 18,390 | Good |
| Rte I81 over CR 37 | 1959 | 18,270 | Fair |
| Rte I81 over Nys Barge Canal | 1959 | 18,270 | Fair |
| Rte 81 over Daves Brook | 1958 | 17,542 | Fair |
| Rte 81 over Daves Brook | 1958 | 17,542 | Fair |
| Rte I81 over Oneida Lake | 1959 | 17,025 | Fair |
| Rte 104 over Canal View Dr OSWEGO RI | 1969 | 16,450 | Fair |
| Rte I81 over Oneida Lake | 1959 | 16,277 | Poor |
| Rte I81 over Swamp Road | 1959 | 16,277 | 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 Oswego County → - all 234, busiest first, each with its own condition record.
All of New York: New York 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.