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: DRAIN
1.3 M W OF LA 25, Washington, LA
Over: DRAIN
0.9 MI W OF LA 25, Washington, LA
Over: DRAIN
0.8 M W OF LA 25, Washington, LA
Over: DRAIN
0.6 M W OF LA 25, Washington, LA
Over: DRAIN
0.5 M W OF LA 25, Washington, LA
Over: DRAIN
0.3 M W OF LA 25, Washington, LA
Over: BIG COLEWA BAYOU
.7 MI EAST OF LA 585, West Carroll, LA
Over: CREEK
0.7 MI S OF PAUL FRANK RD, Allen, LA
Over: CREEK
5.8 MI. E OF INT LA 113, Allen, LA
Over: BAYOU
2.2 MI S of LA 26, Allen, LA
Over: GUM CREEK
0.3 MI SOUTH OF US 90, Calcasieu, LA
Over: DRAIN TO JONES BAYOU
0.01 MILES NORTH OF LA 58, East Carroll, LA
Over: JOE'S BAYOU
1.76 MI WEST OF SOUTH INT, East Carroll, LA
Over: SADDLE BAYOU OVFLOW
NO DATA ENTERED, Grant, LA
Over: JEFFERSON CANAL
2.99 MI EAST OF LA 330, Iberia, LA
Over: Petite Anse Bayou
2.2 Mi. S. of La 14, Iberia, LA
Over: Coulee
.1 M W of I49 S Srvce Rd, Lafayette, LA
Over: CANAL
.2 MI. N. OF HWY. 90, Orleans, LA
Over: 20 ARPENT CANAL
0.15 MI N E OF LA 39, St. Bernard, LA
Over: DAY BRANCH
LA0441, St. Helena, LA
Over: BAYOU LACOMBE
0.12 MI NE OF LA 434, St. Tammany, LA
Over: CREEK
2.5 M E OF LA 434, St. Tammany, LA
Over: AVRICO CANAL
5.98 MI W. OF LA 91, Vermilion, LA
Over: BOGUE CHITTO R.
2.2 MI.N.OF LA 1082, Washington, LA
Over: BAYOU CLAUSE
4.8 M E OF LA 413, West Baton Rouge, LA
Over: W FORK THOMPSON C
10.44 Mi E of US 61, West Feliciana, LA
Over: COLDWATER CREEK
APP. 3.75 MI. NW OF US 84, Winn, LA
Over: COLDWATER CREEK
1.25 MI. WEST OF LA 156, Winn, LA
Over: LONG POINT GULLEY
0.3 MI WEST OF LA 1109, Acadia, LA
Over: W FORK CANEY CR
5.2 MI S OF LA 10, Allen, LA
Over: DRAIN BAYOU
0.1 Mi N of LA 73, Ascension, LA
Over: BAYOU LAFOURCHE
LA0998, Assumption, LA
Over: CREEK
7.19 MI. N OF INT LA27/11, Beauregard, LA
Over: FLAT RIVER
.37 MI EAST OF US 71, Bossier, LA
Over: AIRPORT DITCH
0.3 MI.WEST OF U.S., Caddo, LA
Over: GILBERT DITCH
0.5 MI. EAST OF LINE, Caddo, LA
Over: BAILEY TN RD,TR CORNEY B
7.48 MI. E. OF LA. 2, Claiborne, LA
Over: COMITE RIVER
2.6 M E of LA 67&LA 408, East Baton Rouge, LA
Over: WARDS CREEK
I0010, East Baton Rouge, LA
Over: DRAINAGE CANAL
BLVD. DE PROVINCE, East Baton Rouge, LA
Over: JONES CREEK
1.7 M N FLORIDA BLVDUS190, East Baton Rouge, LA
Over: WHITE BRANCH
1.6 M S of LA 63, East Feliciana, LA
Over: THOMPSON CREEK
LA0010, East Feliciana, LA
Over: DRAINAGE CANAL
0.2 MI SOUTH OF LA 85, Iberia, LA
Over: CANAL NO. 6
0.01 MI S OF US 61, Jefferson, LA
Over: BAYOU
0.6 MI E of LA 14/26, Jefferson Davis, LA
Over: LASALLE COULEE
1.88 Mi W of US 90, Lafayette, LA
Over: CREEK
1.3 MI EAST OF LA 145, Lincoln, LA
Over: LITTLE BAYOU BEOUF
MOREHOUSE/OUACHITA LINE, Morehouse, LA
Over: LITTLE BAYOU CLEAR
NO DATA ENTERED, Rapides, LA
Showing 2,301-2,350 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.