Bridge conditions in Ouachita Parish, Louisiana
331 inventoried bridges · 42 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
About one in 8 bridges in Ouachita Parish is rated in poor condition: 42 of 331 on the federal inventory, one of the higher shares in Louisiana.
- 42 of the 331 bridges in Ouachita Parish, Louisiana, are rated in poor condition (12.7%) in the 2025 National Bridge Inventory, as of .
- 78 bridges (23.6%) are rated good and 211 (63.7%) fair.
- The median Ouachita Parish bridge was built in 1979.
- The busiest poor-rated bridge is I0020 over Youngs Bayou (built 1965), carrying about 31,285 vehicles a day.
Good 23.6% · Fair 63.7% · Poor 12.7% of 331 bridges
Bridges rated poor
Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I0020 over Youngs Bayou | 1965 | 31,285 | Poor |
| LA0617 over I-20 | 1986 | 31,200 | Poor |
| US0165 over Youngs Bayou | 1966 | 29,759 | Poor |
| US0165 over Pine Bayou | 1963 | 17,565 | Poor |
| LA0594 over I-20 | 1965 | 12,786 | Poor |
| LA0034 over Cheniere Creek | 1970 | 8,694 | Poor |
| LA0838 over Steep Bayou | 1955 | 8,105 | Poor |
| Downing Pines Rd over I0020 & Constitution Dr | 1963 | 6,220 | Poor |
| Vancil Rd over I-20 | 1963 | 5,890 | Poor |
| Russell Sage Rd over I-20 | 1968 | 3,950 | Poor |
| LA0143 over Darbonne Bayou | 1962 | 3,674 | Poor |
| LA0134 over Bayou Desaird | 1979 | 3,462 | Poor |
| LA0134 over Mill Bayou | 1957 | 3,462 | Poor |
| LA0134 over Creek | 1957 | 3,462 | Poor |
| LA0151 over Creek | 1967 | 2,862 | Poor |
| LA0151 over North Cheniere CR | 1958 | 2,828 | Poor |
| LA0594 over Caney Creek | 1954 | 2,642 | Poor |
| LA0015 over Bayou Lafouche | 1953 | 2,382 | Poor |
| Fortune Dr over Bayou Desiard | 1990 | 1,616 | Poor |
| Harrell Rd over Steep Bayou | 2013 | 731 | Poor |
| Harmon Johnson Rd over Drain to Prairie Bayou | 1968 | 570 | Poor |
| Miller Rd over Petticoat Bayou | 1981 | 330 | Poor |
| Crawford Rd over Petticoat Bayou | 1978 | 300 | Poor |
| Ruffin Dr over Pine Bayou | 1972 | 300 | Poor |
| Parkwood Dr over Black Bayou | 1980 | 300 | Poor |
| Mineral Springs Rd over Clark Creek | 1960 | 271 | Poor |
| Central St over Black Bayou | 1982 | 250 | Poor |
| Flynn St over Roots Canal | 1985 | 250 | Poor |
| Cypress School Rd over Cypress Creek | 1979 | 235 | Poor |
| Short Washngton St over E. Prong Youngs Bayou | 1972 | 200 | Poor |
| Lapine Rd over Rogers Creek | 1960 | 118 | Poor |
| Joseph Thomas Rd over Patrick Creek | 1960 | 104 | Poor |
| Basco Lane over Calloway Ditch | 2005 | 75 | Poor |
| River Rd over Prairion Bayou | 1968 | 75 | Poor |
| Shanandoah Dr over Caney Creek | 1976 | 50 | Poor |
| C. Rawls Rd over Prairion Bayou | 1960 | 37 | Poor |
| Guyton Rd over Drain to Cheniere Brake | 1979 | 37 | Poor |
| Avery Rd over Branch of Cypress Creek | 1965 | 32 | Poor |
| Avery Rd over Cypress Creek | 1965 | 32 | Poor |
| Lovelady Rd over Longs Creek | 1965 | 23 | Poor |
| Laureli Rd over Branch of Cypress Creek | 1980 | 16 | Poor |
| Harrison/collier over Concrete Canal | 1961 | – | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| 18TH St at Desiard over Drainage Canal | 1996 | 100,000 | Good |
| I0020 over Black Bayou | 1965 | 84,225 | Fair |
| I0020 over City St/icg Rr/ouachita | 1965 | 84,225 | Fair |
| I0020 over Youngs Bayou | 1965 | 84,225 | Fair |
| I0020 over US 165 | 1965 | 84,225 | Fair |
| I0020 over E Youngs Bayou | 1965 | 84,225 | Fair |
| I0020 over Drain | 1968 | 84,225 | Fair |
| I0020 over Black Bayou | 1965 | 66,061 | Fair |
| I0020 over City St/icg Rr/ouachita | 1965 | 66,061 | Fair |
| I0020 over Youngs Bayou | 1965 | 66,061 | Fair |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of Louisiana: Louisiana bridge conditions by county · every download on the data page.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.