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: Nezpique Bayou
1.41 MI. WEST OF LA 1123, Acadia, LA
Over: DRAINAGE DITCH
APPROX. 0.5 MI. EAST OF S, Avoyelles, LA
Over: BAYOU PEROT
MARKSVILLE, AVOYELLES PAR, Avoyelles, LA
Over: CREEK
1.36 MI EAST OF US 71, Bossier, LA
Over: GREEN TERRACE DITCH
0.6 MI. EAST OF LA 5, Caddo, LA
Over: MILLER BRANCH
0.4 MI NORTH OF CADDO 130, Caddo, LA
Over: CANAL
0.3 MI S OF LA 14, Calcasieu, LA
Over: PINE POINT GULLY
0.9 MI EAST OF LA 1161, Evangeline, LA
Over: DEBLANC COULEE
1.5 MI WEST OF LA 14, Iberia, LA
Over: BEAR CREEK
.7 MI EAST OF LA 499, Jackson, LA
Over: EAST LACASSINE BAYOU
1.60 MI. E. OF INT. LA 99, Jefferson Davis, LA
Over: MINE BRANCH COULEE
0.76 Mi SW of LA 182, Lafayette, LA
Over: REDWINE CREEK
5 MI SE SIMSBORO, Lincoln, LA
Over: CREEK
0.4 M E OF LA 16, Livingston, LA
Over: CREEK
2 MI. NW OF LA 63, Livingston, LA
Over: BEAVER CREEK
.55 MI N OF JUNC 16& 1025, Livingston, LA
Over: BONNE IDEE
3.1 MI EAST OF US 165, Morehouse, LA
Over: ROGERS CREEK
6 MI NW LUNA, Ouachita, LA
Over: HUFFMAN CREEK
0.02 M. N. OF GREER ST., Rapides, LA
Over: CREEK
0.2 M E OF LA 432, St. Helena, LA
Over: Bayou Fuselier
2.2 Mi. N. of La 1252, St. Landry, LA
Over: Bayou Kennison
0.2 Mi. S. Of I49 Srvc Rd, St. Landry, LA
Over: BERARD CANAL BAYOU
0.2 Mi. W of LA 96, St. Martin, LA
Over: CYPREMORT POINT
7.6 MI SOUTH OF LA 83, St. Mary, LA
Over: TECHE BAYOU
0.2 Mi. N of La 182, St. Mary, LA
Over: SAVANNAH BRANCH
LA0040, St. Tammany, LA
Over: BRIDGE OVER FOX BRANCH
1.20 M SOUTH OF I-12, St. Tammany, LA
Over: CREEK
3 MI SE OF JCT 190 &, Tangipahoa, LA
Over: SCOTT CREEK
2.4 MI NW OF JCT 40& 1062, Tangipahoa, LA
Over: LITTLE CHOCTAW BAYOU
.01 MI NORTH OF LA 3009, Tensas, LA
Over: MARMANDE CANAL
0.3 MI N OF ST. ELOI RD, Terrebonne, LA
Over: ROBINS CANAL
2.6 Mi S of La 14, Vermilion, LA
Over: HURRICANE BRANCH
5.2 M. NE. OF ROSEPIN, Vernon, LA
Over: WEST FORK SIXMILE CREEK
VE996339, Vernon, LA
Over: BOGUE LUSA CREEK
0.27 MI N OF LA.60, Washington, LA
Over: CREEK
4.9 M SE OF LA 21, Washington, LA
Over: COBURN CREEK
0.1.MI. N.OF LUCERNE, Washington, LA
Over: CREEK
0.28 MI NE OF US 371, Webster, LA
Over: COULEE
1.2 Mi E of Verot Sch Rd, Lafayette, LA
Over: PRAIRION BAYOU
5.06 MI SOUTH OF LA 34, Ouachita, LA
Over: BILL COULEE
0.5 Mi W of Leon Rd, Vermilion, LA
Over: Maree Michel Canal
1.1 Mi S of La 14, Vermilion, LA
Over: BLACK CREEK BRANCH
8.0 M. E. OF ROSEPINE, Vernon, LA
Over: BRANCH OF BLACK CREEK
7.8M. E. OF ROSEPIN, Vernon, LA
Over: BRANCH OF BLACK CREEK
6.2 M. E. OF ROSEPIN, Vernon, LA
Over: BAYOU JACK RELIEF
0.52 MI. SOUTH OF LA 1179, Avoyelles, LA
Over: E CANEY BRANCH
1.4 MI NW OF LA 113, Beauregard, LA
Over: BUCHANAN BAYOU
.1 MI.W. US 171 BLEDSOE R, Caddo, LA
Over: GAMM RD EXT. DOOLEY BAYO
1.9 MI N INT HWY 169, Caddo, LA
Over: SCHOOL HOUSE CREEK
LOGMI 5.27 FR 518 TO, Grant, LA
Showing 1,101-1,150 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.