Assumption County Bridge Report Card
Assumption County scores 70 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
Assumption County, Louisiana
Assumption County has 68 bridges in the National Bridge Inventory, with 9 rated poor and 0 rated scour-critical. Its poor-condition share of 13.2% is above the 11.2% statewide average. Poor-condition bridges carry about 15,660 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives Assumption County a Bridge Condition Exposure Score of 70/100 (C). The county has 68 bridges in the National Bridge Inventory, including 9 in poor condition and 0 rated scour-critical. Poor-condition bridges carry about 15,660 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 | 13.2% | 26.5 |
| Poor-condition traffic exposure | 25 | 4.6% of measured traffic | 3.5 |
| Scour-critical bridge share | 20 | 0.0% | 0.0 |
| Average age vs national baseline | 10 | 42 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 339,331 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 | 13.2% |
| State Poor-Condition Share | 11.2% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 0.0% |
| Average Bridge Age | 42 years |
| Poor-Condition Traffic Exposure | 15,660 vehicles/day |
Bridges to Watch
Top Bridges to Watch in Assumption County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| La0070 over Pierre Pass | Poor condition + traffic exposure | Poor | 5,560 | 1967 |
| La0182 over Bayou Beouf | Poor condition + traffic exposure | Poor | 3,905 | 1958 |
| La1008 over Bayou Lafourche | Poor condition + traffic exposure | Poor | 3,279 | 1952 |
| La0308 over Halway Canal | Poor condition + traffic exposure | Poor | 1,825 | 1969 |
| Bridge ST over Bayou Lafourche | Poor condition + traffic exposure | Poor | 480 | 1984 |
| La1014 over Valance Drainage Canal | Poor condition + traffic exposure | Poor | 304 | 1974 |
| Rue De Kajun over Bayou Pierre Part | Poor condition + traffic exposure | Poor | 192 | 1999 |
| La1010 over Labadieville Drain 2 | Poor condition + traffic exposure | Poor | 111 | 1980 |
| Bayou Boeuf RD over Drainage Canal | Poor condition + traffic exposure | Poor | 4 | 1950 |
| Us0090 over East Bound Off Ramp | High traffic | Good | 12,192 | 1996 |
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.