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: MANOR PARK COULEE
1.15 Mi NE of I-10, Lafayette, LA
Over: ST. CLAIR BAYOU
1.4 Mi W of Sawmill Hwy, Lafayette, LA
Over: SUGAR CREEK
3.13 MILES WEST OF LA 545, Lincoln, LA
Over: BAYOU DEBUTTE
0.7 MI W of LA 593, Morehouse, LA
Over: BAYOU LAPINE
1.09 MI SOUTH OF LA 34, Ouachita, LA
Over: DRAIN INTO LAPINE BAYOU
.3 MI NE INT. 63, Ouachita, LA
Over: CANAL
1.6 MILES EAST OF LA 3188, St. John the Baptist, LA
Over: CANAL
1.6 MILES EAST OF LA 3188, St. John the Baptist, LA
Over: CREEK
1.0 MI. S OF LA 9, Union, LA
Over: LYON BAYOU
0.8 MI E of LA 588, West Carroll, LA
Over: STREETS & R.R. TRACKS
.01 MI SOUTH OF US 90, Acadia, LA
Over: OUISKA CHITTO CK.
4.22 MI. E OF INT LA377, Allen, LA
Over: CREEK
0.7 MI W OF US 165, Allen, LA
Over: BAYOU VALANCE
0.20 MI N JCT LA 1011, Assumption, LA
Over: BAYOU LAFOURCHE
0.01 Mi E of LA 1, Assumption, LA
Over: BAYOU ST;VINCENT.
2.8 M SE of LA 1&LA 70, Assumption, LA
Over: BECKWITH CREEK
4.2 MI E of LA 27, Beauregard, LA
Over: HICKORY BRANCH
3.2 MI W of US 171, Beauregard, LA
Over: CREEK
8.77 MI. E OF US171, Beauregard, LA
Over: CREEK
1.8 MI W OIF US 171, Beauregard, LA
Over: DRAIN
5.6 MI NORTH OF LA 155, Bienville, LA
Over: DRAIN
1.97 MI WEST OF LA 815, Bienville, LA
Over: HURRICANE CREEK
0.3 MI EAST OF LA 507, Bienville, LA
Over: KEPLER CREEK
5.50 MI EAST OF LA 154, Bienville, LA
Over: LOGGY BAYOU
.75 MI SOUTH OF LA 515, Bossier, LA
Over: FOX SKIN BAYOU
0.1 MI SOUTH OF LA 614, Bossier, LA
Over: ST.LOUIS-S.W.R.R.
2.51 MI EAST OF LA 3049, Bossier, LA
Over: DRY BAYOU
2.43 MI NORTH OF LA 2, Bossier, LA
Over: FLOAT CANAL
3.33 MI NORTH OF LA 2, Bossier, LA
Over: CREEK
4.7 MI NORTH OF LA 169, Caddo, LA
Over: HORSE SHOE BAYOU
.8 MI NORTH OF LA 530, Caddo, LA
Over: BRUSH BAYOU
1.1 MI. E. OF US 171, Caddo, LA
Over: CROSS BAYOU
3.04 MI WEST OF LA 169, Caddo, LA
Over: CROSS BAYOU
3.04 MI WEST OF LA 169, Caddo, LA
Over: HOLLYWOOD AVENUE
0.9 M. N. OF LA 511, Caddo, LA
Over: BURT BAYOU
4.8 MI E of US 171, Calcasieu, LA
Over: HAMPTONS COULEE
0.08 MI N OF I-10 WB, Calcasieu, LA
Over: CREEK
2.0 MI EAST OF LA 3239, Caldwell, LA
Over: LITTLE CORNEY BAYOU RELF
3.73 MI EAST OF LA 2 ALT, Claiborne, LA
Over: SUGAR CREEK RELIEF
1.0 MI EAST OF LA 533, Claiborne, LA
Over: DRAIN
.19 MI SOUTH OF LA 2, Claiborne, LA
Over: BEAVER BRANCH
0.25 MI West of US 79, Claiborne, LA
Over: WALKER CREEK RELIEF
.53 MI EAST OF LA 9, Claiborne, LA
Over: WALKER CREEK BRIDGE
.56 MI EAST OF LA 9, Claiborne, LA
Over: BRANCH
1.0 MI SOUTH OF LA 2, Claiborne, LA
Over: CREEK
2.5 MI NORTH OF LA 534-S, Claiborne, LA
Over: DRAIN
1.89 MI EAST OF LA 5, De Soto, LA
Over: BAYOU GRAND CANE
7.7 MI EAST OF LA 5, De Soto, LA
Over: BAYOU GRAND CANE RELIEF
7.75 MI EAST OF LA 5, De Soto, LA
Over: COOK CREEK
8.36 MI EAST OF LA 5, De Soto, LA
Showing 4,951-5,000 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.