St. Landry County Bridge Report Card
St. Landry County scores 72 out of 100 on BridgeLookup's Bridge Condition Exposure Score, based on FHWA National Bridge Inventory records.
St. Landry County, Louisiana
St. Landry County has 316 bridges in the National Bridge Inventory, with 28 rated poor and 11 rated scour-critical. Its poor-condition share of 8.9% is at or below the 11.2% statewide average. Poor-condition bridges carry about 87,484 daily vehicle crossings.
Quote-Ready Local Facts
Copyable Facts for Reporters
BridgeLookup.com gives St. Landry County a Bridge Condition Exposure Score of 72/100 (C). The county has 316 bridges in the National Bridge Inventory, including 28 in poor condition and 11 rated scour-critical. Poor-condition bridges carry about 87,484 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 | 8.9% | 17.7 |
| Poor-condition traffic exposure | 25 | 4.4% of measured traffic | 3.3 |
| Scour-critical bridge share | 20 | 3.5% | 7.0 |
| Average age vs national baseline | 10 | 45 years vs 48 nationally | 0.0 |
| Traffic-data completeness | 5 | 1,996,574 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 | 8.9% |
| State Poor-Condition Share | 11.2% |
| National Poor-Condition Share | 6.7% |
| County Scour-Critical Share | 3.5% |
| Average Bridge Age | 45 years |
| Poor-Condition Traffic Exposure | 87,484 vehicles/day |
Bridges to Watch
Top Bridges to Watch in St. Landry County
| Bridge | Reason | Condition | Daily Traffic | Year Built |
|---|---|---|---|---|
| La0742 over Little Bayou Teche | Poor condition + traffic exposure | Poor | 1,741 | 1971 |
| La0010 over Bayou Ha Ha | Poor condition + traffic exposure | Poor | 708 | 1958 |
| La0010 over Tawpaw Bayou | Poor condition + traffic exposure | Poor | 708 | 1958 |
| Portage Levee Rd. over West Levee Borrow Pit | Poor condition + traffic exposure | Poor | 310 | 1970 |
| Us0190 over Uprr/ Acadia Prep Cir | Poor condition + traffic exposure | Poor | 20,176 | 1962 |
| Us0190 over Atchafalaya Fldwy | Poor condition + traffic exposure | Poor | 14,088 | 1961 |
| I0049 over La0010 | Poor condition + traffic exposure | Poor | 13,540 | 1989 |
| Us0190 over Little Teche Bayou | Poor condition + traffic exposure | Poor | 10,487 | 1962 |
| I0049 over La0010 | Poor condition + traffic exposure | Poor | 9,668 | 1989 |
| La0754 over Drainage Canal | Poor condition + traffic exposure | Poor | 2,371 | 1964 |
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.