Bridge conditions in Jefferson County, New York
318 inventoried bridges · 32 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Jefferson County has 32 bridges rated poor out of 318 inventoried, a 10.1% share that puts it well above the national rate of about 7%.
- 32 of the 318 bridges in Jefferson County, New York, are rated in poor condition (10.1%) in the 2025 National Bridge Inventory, as of .
- 128 bridges (40.3%) are rated good and 158 (49.7%) fair.
- The median Jefferson County bridge was built in 1969.
- The busiest poor-rated bridge is Rte I81 over South Sandy Creek (built 1961), carrying about 9,336 vehicles a day.
Good 40.3% · Fair 49.7% · Poor 10.1% of 318 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 |
|---|---|---|---|
| Rte I81 over South Sandy Creek | 1961 | 9,336 | Poor |
| Rte 342 over Rte I81 Rte I81 | 1965 | 7,799 | Poor |
| Rte 971H over Black River | 1954 | 6,232 | Poor |
| Rte I81 over County Road 15 | 1965 | 5,435 | Poor |
| Rte I81 over County Road 15 | 1965 | 4,824 | Poor |
| Rte I81 over Mullet Creek | 1965 | 4,212 | Poor |
| Rte 12E over Perch River | 1893 | 3,648 | Poor |
| Rte 3 over Mill Creek | 1933 | 2,876 | Poor |
| Rte 12E over Shaver Creek | 1914 | 2,637 | Poor |
| Rte 3 over Power Canal | 1931 | 2,214 | Poor |
| Rte 3 over Little Stony Creek | 1931 | 1,689 | Poor |
| Rte 3 over Stony Creek | 1931 | 1,689 | Poor |
| Rte 11 over CSX Transprtation | 1938 | 1,201 | Poor |
| County Road 25 over Vrooman Creek | 1987 | 586 | Poor |
| CR 30 over Indian River | 1930 | 460 | Poor |
| County Road 90 over Rte I81 Rte I81 | 1961 | 430 | Poor |
| County Road 97 over Fish Creek | 1938 | 266 | Poor |
| Gardner St over Goose Bay | 1980 | 227 | Poor |
| Garden Road over Indian River | 1938 | 164 | Poor |
| Bishop Street Road over Stony Creek | 1930 | 92 | Poor |
| Plank Road over Sandy Creek | 1939 | 43 | Poor |
| Weaver Road over Skinner Creek | 1941 | 41 | Poor |
| Maltby Road over Sandy Creek | 1939 | 34 | Poor |
| Bevins Road over French Creek | 1987 | 31 | Poor |
| Cayuga Avenue over Kelsey Creek | 1947 | 24 | Poor |
| Kenfield Road over Sandy Creek | 1939 | 23 | Poor |
| Eldorado Rd over Little Stony Crk | 1940 | 21 | Poor |
| Brown Rd over Fish Creek | 1938 | 16 | Poor |
| Worden Rd over Sandy Creek | 1910 | 7 | Poor |
| Curtis Road over Dyke Brook | 1940 | 7 | Poor |
| Lewisburg Road over Indian River | 1960 | 1 | Poor |
| Reedville Road over Black Creek | 2009 | 1 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Rte 3 over Rte I81 Rte I81 | 2008 | 22,877 | Good |
| Rte 3 over CSX Mainline Exchange S | 2020 | 19,388 | Good |
| Rte I81 over Mill Creek | 1959 | 17,133 | Good |
| Rte I81 over Beaver Meadow Ck | 1957 | 17,133 | Fair |
| Rte 12F over Rte I81 Rte I81 | 1993 | 15,208 | Good |
| Rte I81 over Stony Creek | 1959 | 14,713 | Fair |
| U.S. Route 11 over City Center Drive Black | 1993 | 14,177 | Fair |
| Rte 971Q over CSX Transportation | 1988 | 13,750 | Fair |
| Rte 11 over CSX Transportation | 1963 | 13,313 | Fair |
| Rte I81 over Skinner Creek | 1961 | 13,117 | Fair |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
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.