Marengo County Bridge Report Card
Marengo County scores 85 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Marengo County, Alabama
Marengo County has 200 bridges in the National Bridge Inventory, with 10 rated poor and 5 rated scour-critical. Its poor-condition share of 5.0% is above the 3.4% statewide average. Poor-condition bridges carry about 850 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Marengo County a Bridge Condition Exposure Score of 85/100 (B). The county has 200 bridges in the National Bridge Inventory, including 10 in poor condition and 5 rated scour-critical. Poor-condition bridges carry about 850 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 | 5.0% | 10.0 |
| Poor-condition traffic exposure | 25 | 0.3% of measured traffic | 0.2 |
| Scour-critical bridge share | 20 | 2.5% | 5.0 |
| Average age vs national baseline | 10 | 41 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 323,265 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 | 5.0% |
| State Poor-Condition Share | 3.4% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 2.5% |
| Average Bridge Age | 41 years |
| Poor-Condition Traffic Exposure | 850 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Marengo County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| Shiloh Street over Springfield Creek | Poor condition + traffic exposure | Poor | 400 | 1978 |
| Co. Rt. 564 over Branch At Powell Crk | Poor condition + traffic exposure | Poor | 50 | 1957 |
| Co.rt.560 over Branch At Sycamore Crk | Poor condition + traffic exposure | Poor | 50 | 1959 |
| Co.rt.435 over Branch Of Turkey Crk | Poor condition + traffic exposure | Poor | 50 | 1962 |
| Co.rt.593 over Branch At Turkey Crk | Poor condition + traffic exposure | Poor | 50 | 1964 |
| Co.rt.487 over Branch Of Six Mile Crk | Poor condition + traffic exposure | Poor | 50 | 1987 |
| Co.rt.615 over Branch At Wilson Crk | Poor condition + traffic exposure | Poor | 50 | 1989 |
| Co.rt.462 over Little Beaver Crk | Poor condition + traffic exposure | Poor | 50 | 1990 |
| Co. Rt. 593 over Branch At Dry Creek | Poor condition + traffic exposure | Poor | 50 | 1993 |
| 0000061546363z0 over Brh At Little Beaver Crk | Poor condition + traffic exposure | Poor | 50 | 1995 |
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.