Hamilton County Bridge Report Card
Hamilton County scores 93 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Hamilton County, Indiana
Hamilton County has 460 bridges in the National Bridge Inventory, with 11 rated poor and 3 rated scour-critical. Its poor-condition share of 2.4% is at or below the 5.3% statewide average. Poor-condition bridges carry about 42,640 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Hamilton County a Bridge Condition Exposure Score of 93/100 (A). The county has 460 bridges in the National Bridge Inventory, including 11 in poor condition and 3 rated scour-critical. Poor-condition bridges carry about 42,640 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 | 2.4% | 4.8 |
| Poor-condition traffic exposure | 25 | 0.8% of measured traffic | 0.6 |
| Scour-critical bridge share | 20 | 0.7% | 1.3 |
| Average age vs national baseline | 10 | 29 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 5,291,080 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 | 2.4% |
| State Poor-Condition Share | 5.3% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 0.7% |
| Average Bridge Age | 29 years |
| Poor-Condition Traffic Exposure | 42,640 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Hamilton County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Little Chicago RD over Morse Reservoir | Poor condition + traffic exposure | Poor | 15,750 | 1954 |
| 106th ST East over Mud Creek | Poor condition + traffic exposure | Poor | 11,970 | 1980 |
| Hazeldell PKWY over Cool Creek | Poor condition + traffic exposure | Poor | 11,260 | 1998 |
| Cherry Tree RD over Vestal Ditch | Poor condition + traffic exposure | Poor | 1,670 | 1974 |
| Atlantic AVE over Stony Creek | Poor condition + traffic exposure | Poor | 570 | 1978 |
| Eagletown RD over Little Eagle Creek | Poor condition + traffic exposure | Poor | 500 | 1976 |
| Cedar Point DR over Spring Mill Run | Poor condition + traffic exposure | Poor | 330 | 1981 |
| Atlantic RD over Thorpe Creek | Poor condition + traffic exposure | Poor | 260 | 1950 |
| Cyntheanne RD over Dyers Creek | Poor condition + traffic exposure | Poor | 140 | 1974 |
| Horton RD over Prairie Creek | Poor condition + traffic exposure | Poor | 120 | 1965 |
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.