Home › Louisiana › Ouachita Parish

Bridge conditions in Ouachita Parish, Louisiana

331 inventoried bridges · 42 rated poor · 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

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 August 20, 2026.
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.

Every bridge in Ouachita Parish → - all 331, busiest first, each with its own condition record.

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.