Total Bridges
12,699
Public highway bridges in Louisiana
State profile · Above median Poor share
Condition ratings, load ratings, and Poor-condition data for every public highway bridge in Louisiana, based on the FHWA National Bridge Inventory.
Data updated May 2026
Total Bridges
12,699
Public highway bridges in Louisiana
Good Condition
36.2%
4,603 bridges rated 7-9
-13.8pp vs 50% benchmark
Poor Condition
11.0%
1,397 bridges whose lowest applicable component is rated 0-4
4.0pp vs national avg 7.0%
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Adjacent states by Poor-condition share (lower share = better)
States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Louisiana on the same metric.
PA
ND
LA
PR
ME
Six lowest-condition bridges in Louisiana, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.
Over: BAYOU DES GLAISES
0.01 MI. EAST OF LA 451, Avoyelles, LA
Over: BLACK BAYOU
1.1 M S OF LA 22, St. Tammany, LA
Over: BAYOU LAFOURCHE
.01 MI NORTH OF LA 1, Lafourche, LA
Over: JONES CREEK
0.65 Mi South of LA 500, LaSalle, LA
Over: HYDE BR.
2 MI S OF 1054 & 440, Tangipahoa, LA
Over: BAYOU ROUGE
APPROX. 1 M. S. OF LA 361, Avoyelles, LA
Over: CREEK
6.2 MI N OF LA 4, Caldwell, LA
Over: RICHLAND CREEK
0.6M N of LA126, Caldwell, LA
Over: ELAM BRANCH
5.0 MI. S. OF LA 3015, De Soto, LA
Over: BAYOU FOUNTAIN
0.3 MILES SOUTH OF HIGHLA, East Baton Rouge, LA
Over: WHITE BAYOU
0.8 MILES W OF LA6&COMITE, East Baton Rouge, LA
Over: ROBERTS CANAL
BATON ROUGE, LA., East Baton Rouge, LA
Over: CATFISH CANAL
1.8 M SW of LA 77, Iberville, LA
Over: RAMP "C"
.85 MI EAST OF LA 3154, Jefferson, LA
Over: CANAL #4
1.5 MILES SOUTH OF I-10, Jefferson, LA
Over: CANAL NUMBER 14
0.5M SOUTH OF VETERAN, Jefferson, LA
Over: COOPER LOOP CREEK
0.02 MI S OF LA 8, LaSalle, LA
Over: HEMPS CREEK WEST
.01 MI NORTH OF LA 127, LaSalle, LA
Over: Canal
1.0 mi. south of LA 1025, Livingston, LA
Over: Hynson Bayou
1.05 MI. NORTHEAST OF LA, Rapides, LA
Over: CHATLIN LAKE CANAL
0.9 M SW OF LA 1, Rapides, LA
Over: FRONTAGE RD., UP RR
0.45 MI. NORTH OF US 71, Rapides, LA
Over: CANAL
3.0 MI NORTH OF LA 347, St. Martin, LA
Over: Rattlesnake Creek
0.85 Mi. W. of LA 21, St. Tammany, LA
Over: DRAIN
1.4 M E OF US 51, Tangipahoa, LA
Over: DYSON CREEK
LA0440, Tangipahoa, LA
Over: INTRACOASTAL WATERWAY
.03 MI. FROM US 90, Terrebonne, LA
Over: INTERCOASTAL WATERWAY
.03 MI EAST OF US 90, Terrebonne, LA
Over: COULEE GRANGES
2.43 MI E. OF LA 343, Vermilion, LA
Over: BEESON'S CREEK
3.11 M. S. OF JCT LA 117, Vernon, LA
Over: PUSHEPATAPA CREEK
0.5 MI NORTH OF LA 436, Washington, LA
Over: BOGUE LUSA CREEK
LOGMILE 01.18 ON LA 439, Washington, LA
Over: BAYOU POYDRAS
1.2 M S of US 190, West Baton Rouge, LA
Over: BARROW CREEK
0.73 M NW LA 10&Bains Rd, West Feliciana, LA
Over: YELLOW BAYOU
0.01 MI. WEST OF LA 1183, Avoyelles, LA
Over: YELLOW BAYOU
5.46 MI. E. OF LEVEE RD., Avoyelles, LA
Over: LEATHERMAN CREEK
0.1 MI SOUTH OF LA 518, Claiborne, LA
Over: TECHE BAYOU
0.08 MI EAST OF LA 182, Iberia, LA
Over: COULEE GRANGES
1.65 MI E of LA 343, Lafayette, LA
Over: COULEE MINE
0.7M WEST OF LA 3025, Lafayette, LA
Over: TURKEY CREEK
1.9 MI W of LA 152, Lincoln, LA
Over: DRAIN
3 MILES EAST OF LA63, Livingston, LA
Over: BAYOU
1.4 MI W. LA 599, Morehouse, LA
Over: BRYANT BRANCH
1.75 MILES NORTH OF LA 34, Ouachita, LA
Over: BAYOU PIERRE
6.2 MI. W. OF LA 1, Red River, LA
Over: EICKES CANAL
.5 MI NORTH OF LA 36, St. Bernard, LA
Over: Bayou Teche
0.02 Mi. W. of La 31, St. Landry, LA
Over: DRAINAGE
1.6 MI E of LA 338, Vermilion, LA
Over: NOEL DITCH
1.7 Mi W of La 694, Vermilion, LA
Over: BEULAH CREEK
0.54 MI. NORTH OF LA 1230, Winn, LA
Over: Lyons Point Gully
3 MI East OF LA 13, Acadia, LA
Over: BAYOU CHOCTAW
0.67 M. E. OF END LA 1194, Avoyelles, LA
Over: MADDEN MILL CREEK
2.6 MI NORTH OF LA 154, Bienville, LA
Over: DRAINAGE
.6 MI EAST OF LA 1, Caddo, LA
Over: FRAZIER CREEK
2.0 MI. S OF LA 518, Claiborne, LA
Over: D'ARBONNE BAYOU TRIBUTAR
2.43 MI. S. OF LA 2, Claiborne, LA
Showing 7,401-7,450 of 12,699 bridges
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.
Understanding Bridge Conditions
How FHWA rates bridge condition on a 0-9 scale.
Check Your Daily Bridges
How to look up bridge condition data for bridges on your route.
Read our methodology — how this data is sourced, computed, and verified.
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.