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: STALKINGHEAD CRK MCFEE S
.4 MI. S. INT. 010, Morehouse, LA
Over: BAYOU BONNE IDEE
0.7 MI SOUTHWEST INT 137, Morehouse, LA
Over: CREEK
.18 MI. N OF LA488, Rapides, LA
Over: LITTLE INDIAN CREEK
0.3 MI. SOUTH OF LA 28, Rapides, LA
Over: SIMALUSA CREEK
2.3 M N OF LA 40, St. Tammany, LA
Over: CREEK
3.8 MI NW OF RT 190, Tangipahoa, LA
Over: CREEK
4 MI NW OF JCT 51 & 1054, Tangipahoa, LA
Over: BAYOU D'ARBONNE
1.1 MI. W. INT. 489, Union, LA
Over: ISLE MARRONE CANAL
1.75 Mi. W of LA 35, Vermilion, LA
Over: BARRY'S CREEK
1.0 MI.N.OF.LA.16, Washington, LA
Over: JOES BRANCH
10.5 MI. W OF HWY. 2, Washington, LA
Over: HAYS CREEK
2.1 MI. N. OF HWY. 3, Washington, LA
Over: POLLY CREEK
3.5 MI. SW of LA968, West Feliciana, LA
Over: CALCASIEU RIVER RELIEF
1.9 MI WEST OF US 165, Allen, LA
Over: WEST FORK CANEY CREEK
1.0 MI S OF LA 10, Allen, LA
Over: CREEK
1.5 MI NW OF JCT 51, Tangipahoa, LA
Over: DRAIN
2.3 M N OF LA 10, Washington, LA
Over: BEDICO CREEK
4.6 MI SE OF LA 445, Tangipahoa, LA
Over: PARMERS CREEK
2.5 MI NE OF HWY 7, Webster, LA
Over: DRY CREEK
1.5 MI S OF HWY 160, Webster, LA
Over: BODCAU BAYOU
4.0 MI NORTH OF LA 528, Bossier, LA
Over: BAYOU
7.4 MI. W OF LA 14, Cameron, LA
Over: LITTLE CHENIER BAYOU
0.1 MI S of CHENIER RD, Cameron, LA
Over: BAYOU BARRIERE
0.8 MI S OF BARRIERE RD, Catahoula, LA
Over: ALLEN CREEK
1.48 MI EAST OF LA 9, Claiborne, LA
Over: DRAIN
1.1 MI NORTH OF LA 483, De Soto, LA
Over: BAYOU CHICOT
5.23 MI NORTH OF LA 783, Red River, LA
Over: CREEK BRIDGE
0.2 MI W US 51, Tangipahoa, LA
Over: GUEYDAN CANAL
2 Mile S of La 332, Vermilion, LA
Over: DRAIN
3.59 MI NORTH OF LA 155, Bienville, LA
Over: CYPRESS BAYOU
1.8 M E of LA 964, East Baton Rouge, LA
Over: THORNWELL DRAINAGE CANAL
1.1 MI N of LA14, Jefferson Davis, LA
Over: HAINES CREEK
4.09 MI. ENE OF LA 1205, Rapides, LA
Over: GRAND CAILLOU BAYOU
0.05 Mi W of La 57, Terrebonne, LA
Over: COULEE
0.6 Mi S of LA 332, Vermilion, LA
Over: CREEK
4.24 MI WEST OF LA 98, Acadia, LA
Over: COULEE
0.1 Mi. S. of La 91, Acadia, LA
Over: Flat Rivers Ditch
0.2 MI EAST OF US 71, Bossier, LA
Over: CREEK
5.0 MI N OF LA 3194, Caddo, LA
Over: COLEMAN CREEK
1.0 MI WEST OF WEST INT L, Claiborne, LA
Over: CHICOT BAYOU
2.10M SOUTH OF LA 106, Evangeline, LA
Over: BAYOU BARATARIA
.07 MI EAST OF LA 3257, Jefferson, LA
Over: GULLY
0.4 MI S OF CORMIER V RD, Jefferson Davis, LA
Over: DRAINAGE CANAL HILL AVE.
.19 MI. W. INT. 005, Morehouse, LA
Over: Warner Creek
3.4 Miles SE of LA 16, Washington, LA
Over: SILVER CREEK RELIEF
1.4 M E OF LA 38, Washington, LA
Over: HENDERSON BAYOU
0.9 M E of LA 44, Ascension, LA
Over: PINEY BAYOU
6.7 MI NORTH OF I-20, Caddo, LA
Over: WEINER CREEK
0.1 MI E of Cedarcrest Av, East Baton Rouge, LA
Over: STREAM NO NAME
1.9 Mi E of LA 19, East Feliciana, LA
Showing 11,551-11,600 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.