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: BEARHEAD CREEK
1.3 MI E. OF LA 109, Beauregard, LA
Over: STONER AVENUE
0.9 MI. N OF LA 3032, Caddo, LA
Over: DRAIN CREEK
.2 MILES W OF LA 67 & KER, East Feliciana, LA
Over: GUM BAYOU
0.8 MI. S OF LA 3086, Jefferson Davis, LA
Over: LITTLE MARSH BAYOU
1.5 MI E of TOPSY BELL RD, Jefferson Davis, LA
Over: Coulee
.13 MI N of E St Peter St, Lafayette, LA
Over: CREEK
7.35 MI N of US 80, Lincoln, LA
Over: CREEK
7.35 MI N of US 80, Lincoln, LA
Over: KCS RAILROAD
BONNER ST/ RUSTON, Lincoln, LA
Over: DRAINAGE CANAL
.8 MI SE OF LA 47, Orleans, LA
Over: DRAINAGE DITCH
BREARD ST. MONROE LA, Ouachita, LA
Over: COOPER CREEK
2.2 MI NE OF JCT 40 &1062, Tangipahoa, LA
Over: MIDDLE FORK BAYOU
2.0 MI. NORTH OF LA 545, Union, LA
Over: MIDDLE FORK RELIEF
2.38 MI. NORTH OF LA 545, Union, LA
Over: CORNEY BAYOU RELIEF
2.08 MI. SOUTH OF LA 15, Union, LA
Over: JENK'S BRANCH
1.34 MI. NORTH OF LA 15, Union, LA
Over: Plant Rd
7.5 MI EAST OF LA 97, Acadia, LA
Over: SLOUGH
8.6 MI. E OF LA 113, Allen, LA
Over: PERRY CREEK
7.0 MI N of US 190, Allen, LA
Over: GUM BRANCH
3.4 MI EAST OF US 165, Allen, LA
Over: TEN MILE CREEK
2.0 MI NORTH OF LA 26, Allen, LA
Over: LAKE VILLAR
0.92 MI S of LA 42, Ascension, LA
Over: KCS RR & DR T DOO'S RD
0.14 MI. NORTH OF LA 1186, Avoyelles, LA
Over: DIVERSION CANAL
1.36 MI. WEST OF LA 1176, Avoyelles, LA
Over: TROUT CREEK
0.4 MI S of US 190, Beauregard, LA
Over: CREEK
0.9 MI WEST OF LA 9, Bienville, LA
Over: BLACK LAKE BAYOU
3.15 MI EAST OF LA 792, Bienville, LA
Over: MISSOURI PACIFIC RAILROA
0.7 MI. S. OF LA 511, Caddo, LA
Over: KINGS HWY & PORTLAND AVE
.3 MI EAST OF US 71, Caddo, LA
Over: KCS/T&P RR
1.81M NORTH OF LA 526 INT, Caddo, LA
Over: STONER AVE
0.9 MI. NO.OF LA 303, Caddo, LA
Over: UPRR
.2 MI EAST OF US 90, Calcasieu, LA
Over: CREEK
2.1 MI NORTH OF LA 615, Claiborne, LA
Over: BLACK LAKE BAYOU
2.9 MI EAST OF US 79, Claiborne, LA
Over: DRAIN
2.97 MI EAST OF US 79, Claiborne, LA
Over: BEAVER BRANCH
.92 MI WEST OF US 79, Claiborne, LA
Over: WALLACE CREEK
1.6 MI. S. OF LA 3015, De Soto, LA
Over: MIM SPRINGS
1.14 MI NORTH OF US 84, De Soto, LA
Over: HURRICANE CREEK
2.04M NORTH OF LA 37, East Baton Rouge, LA
Over: ROBERTS CANAL
5.46M NORTH OF LA 37, East Baton Rouge, LA
Over: JONES BAYOU
9.95M NORTH OF LA 37, East Baton Rouge, LA
Over: DRAIN TO CASTER CREEK
.4 MI. S.E. INT. RT. 193, Jackson, LA
Over: DUNCAN CANAL
1.2 MI. E. OF LOYOLA, Jefferson, LA
Over: EAST BAYOU LACASSINE
1.51 MI N OF I-10 SER RD, Jefferson Davis, LA
Over: CREEK
3.1 MI EAST OF LA 145, Lincoln, LA
Over: LITTLE CHOUDRANT CREEK
.1 MI NORTH OF LA 556, Lincoln, LA
Over: CHOUDRANT CREEK RELIEF
.2 MI NORTH OF LA 556, Lincoln, LA
Over: TICKFAW RIVER
US0190, Livingston, LA
Over: CREEK
10.47 MI E of US 165, Morehouse, LA
Over: SIBLEY LAKE
.70 MI N OF JCT LA 6, Natchitoches, LA
Showing 4,801-4,850 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.