Hamilton County Bridge Report Card
Hamilton County scores 55 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Hamilton County, New York
Hamilton County has 87 bridges in the National Bridge Inventory, with 13 rated poor and 4 rated scour-critical. Its poor-condition share of 14.9% is above the 9.9% statewide average. Poor-condition bridges carry about 2,260 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Hamilton County a Bridge Condition Exposure Score of 55/100 (F). The county has 87 bridges in the National Bridge Inventory, including 13 in poor condition and 4 rated scour-critical. Poor-condition bridges carry about 2,260 daily vehicle crossings. Poor condition does not mean unsafe; bridges judged unsafe are closed or restricted by transportation agencies.
How the Score Breaks Down
| Factor | Weight | County Value | Penalty |
|---|---|---|---|
| Poor-condition bridge share | 40 | 14.9% | 29.9 |
| Poor-condition traffic exposure | 25 | 4.7% of measured traffic | 3.5 |
| Scour-critical bridge share | 20 | 4.6% | 9.2 |
| Average age vs national baseline | 10 | 54 years vs 48 nationally | 2.6 |
| Traffic-data completeness | 5 | 48,078 measured daily crossings | 0.0 |
Score = 100 minus weighted penalties. The score is a comparative research signal, not an official safety rating. Read the full methodology.
County Comparisons
| County Poor-Condition Share | 14.9% |
| State Poor-Condition Share | 9.9% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 4.6% |
| Average Bridge Age | 54 years |
| Poor-Condition Traffic Exposure | 2,260 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Hamilton County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Kempshall Mountain over Fishing Brook | Poor condition + traffic exposure | Poor | 10 | 2016 |
| Nysdec Road over Round Lake Outlet | Poor condition | Poor | 0 | 1995 |
| RTE 30 over Big Brook | Poor condition + traffic exposure | Poor | 1,095 | 1938 |
| RTE 10 over W Br Sacandaga River | Poor condition + traffic exposure | Poor | 302 | 1930 |
| Big Brook Road over Big Brook | Poor condition + traffic exposure | Poor | 230 | 1945 |
| Cedar River Road over Browns Brook | Poor condition + traffic exposure | Poor | 117 | 1966 |
| Otter Brook Road over Otter Brook | Poor condition + traffic exposure | Poor | 103 | 1968 |
| Old Piseco Road over Mill Stream | Poor condition + traffic exposure | Poor | 85 | 1931 |
| Old Piseco Road over Cold Stream | Poor condition + traffic exposure | Poor | 85 | 1931 |
| Old Piseco Road over Fall Stream | Poor condition + traffic exposure | Poor | 85 | 1931 |
Important safety note
Poor condition does not mean a bridge is unsafe. It means at least one major component has significant deterioration and the bridge is a priority for maintenance, repair, or replacement. Bridges judged unsafe are closed or restricted by transportation agencies.