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: SALINE BAYOU
3.3 MI NORTH OF LA 507, Bienville, LA
Over: BOGGY BAYOU
2.0 MI. S. OF LA 526, Caddo, LA
Over: MILL CREEK
0.4 MI. EAST OF TEX, Caddo, LA
Over: BUCHANAN BAYOU
0.2 MI. SOUTHOF PH. RD.22, Caddo, LA
Over: KHVL SPGRD6 RD,TRB BUCH
3.8 M.W.OLD MANSFIEL, Caddo, LA
Over: BRUSH BAYOU
0.6 MI WEST OF LINWOOD AV, Caddo, LA
Over: BRUSH BAYOU
0.6 MI WEST OF LINWOOD AV, Caddo, LA
Over: GARDNER BAYOU
1.1 MI. EAST OF TEX.LINE, Caddo, LA
Over: D'INDE BAYOU
0.3 MI E OF LA 27, Calcasieu, LA
Over: BEAVER BRANCH
1.03 MI NORTH OF LA 9, Claiborne, LA
Over: D'ARBONNE BAYOU TRIBUTAR
2.29 MI. S. OF LA 2, Claiborne, LA
Over: CREEK
4.14 M S of LA 565, Concordia, LA
Over: DRAIN CANAL
.25 MI E. OF GARDERE LN., East Baton Rouge, LA
Over: DRAIN CANAL
.30 MI N. OF BURBANK BLVD, East Baton Rouge, LA
Over: LITTLE SANDY CREEK
5.5 MI.N.LA409, LA64, East Baton Rouge, LA
Over: CREEK
4.53 MI SOUTH OF LA 34, Jackson, LA
Over: DRAIN
.49 MI NORTH OF US 190, Jefferson Davis, LA
Over: Canada Branch
0.4 miles west of LA 447, Livingston, LA
Over: ANTOINE CREEK
9.55 MI. N OF INT LA9, Natchitoches, LA
Over: BAYOU ST. JOHN
0.6 MI S OF LAKESHOR, Orleans, LA
Over: UP RAILROAD
.3 MI. N OF INT I-49, Rapides, LA
Over: LITTLE SPRING CREEK
1.0 MILE EAST OF US 165, Rapides, LA
Over: BAYOU RAPIDES
1.84 MI. NORTH OF LA 496, Rapides, LA
Over: FLAGON BAYOU
0.76 MI. NORTH OF LA 3225, Rapides, LA
Over: 20 ARPENT CANAL
0.05 MI NE OF LA 39, St. Bernard, LA
Over: 20 ARPENT CANAL
0.05 MI E OF LA 39, St. Bernard, LA
Over: CANAL
0.2 Mi S of Hickory St., St. Mary, LA
Over: COULEE
1.06 MI N. OF LA 92, Vermilion, LA
Over: QUEUE DE TORTUE BAYOU
0.60 MI E. OF LA 35, Acadia, LA
Over: BAYOU PLAQUEMINE BRULE
1.9 MI EAST OF LA 1110, Acadia, LA
Over: CREEK
2.33 MI NORTH OF US 90, Acadia, LA
Over: BAYOU LAFOURCHE
LA1008, Assumption, LA
Over: MIDDLEFORK B.DARBONNE RL
3.0 MI EAST OF LA 152, Claiborne, LA
Over: NICK CREEK
3.6 MI EAST OF LA 152, Claiborne, LA
Over: NORTHDALE CANAL
0.1 MI W of LA 3164, East Baton Rouge, LA
Over: LITTLE COMITE RIVER
LA0019, East Feliciana, LA
Over: MCQUINNEY BAYOU R
4.4 M NW of LA 37&LA 63, East Feliciana, LA
Over: COCODRIE BAYOU
.74 MI NORTH OF LA 106, Evangeline, LA
Over: Bayou
3.2 Mi N. of LA 102, Jefferson Davis, LA
Over: TICKFAW RIVER
LA0042, Livingston, LA
Over: AMITE DIVERSION CANAL
LA0022, Livingston, LA
Over: MILL BAYOU
1.56 MI SOUTH OF I-20, Madison, LA
Over: SHILD CREEK
.54 MI NORTH OF LA 543, Morehouse, LA
Over: HURRICANE BAYOU
1.2 MI NORTH OF US 80, Richland, LA
Over: CHOCTAW BAYOU
1.1 MI. NORTH OF LA 174, Sabine, LA
Over: IVANHOE CANAL
2.8 Mi EAST OF LA 319, St. Mary, LA
Over: BIG BRANCH
US0190, St. Tammany, LA
Over: BAYOU BONFOUCA
LA0433, St. Tammany, LA
Over: BIG CHOCTAW BAYOU
.1 MI NORTH OF LA 896, Tensas, LA
Over: MAREE MICHEL CANAL
0.5 Mi S of LA 14, Vermilion, LA
Showing 3,201-3,250 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.