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: COULEE
1.2 Mi. W of LA 182, St. Mary, LA
Over: McCAIN CREEK
1.6 MI W OF LA 1, Caddo, LA
Over: FRANCE RD/N.O. BELT R/R
0.50 M NORTH OF I-10, Orleans, LA
Over: DRAINAGE CANAL
0.6 M E of LA 415@LA 986, West Baton Rouge, LA
Over: GOVERNMENT DITCH
1.1 MI E of ARDOIN RD, Calcasieu, LA
Over: COW BRANCH
2.0 MI. E. OF LA. 159, Webster, LA
Over: CREEK
0.1 MI SOUTH OF US 190, Acadia, LA
Over: COULEE
0.40 Mi NW of La 748, Evangeline, LA
Over: PINE CREEK
LOG MI 5.6 FR 186 TO 123, Franklin, LA
Over: WEST TURKEY CREEK
0.02 MI W OF LA 4, Franklin, LA
Over: BAYOU QUEUE DE TORTUE
0.30 MI SOUTH US 90, Lafayette, LA
Over: SALINE BAYOU
NATIONAL FOREST ROAD, Natchitoches, LA
Over: WASHINGTON AVE. CANAL
0.04 MI NE OF STROELITZ S, Orleans, LA
Over: PRAIRION BAYOU
0.17 MI SE of LA 557, Ouachita, LA
Over: PRARION BAYOU
2.76 MI. NE HWY. 557, Ouachita, LA
Over: GUYTON CREEK
0.40 MI NW of LA 34, Ouachita, LA
Over: Bayou Mallet
1.09 MI SW of LA 104, St. Landry, LA
Over: ICE WATER BRANCH
0.25 MI. SOUTH OF HWY 10, Washington, LA
Over: BETTS CREEK
1.0M NORTH OF LA 1072, Washington, LA
Over: KINDER DITCH
0.6 MI W of US 165, Allen, LA
Over: FLAT CREEK
2.5 MI SOUTH OF LA 26, Allen, LA
Over: DRAINAGE DITCH
APP. 1 MI. N. OF LA 114, Avoyelles, LA
Over: OCKLEY DITCH
1.8 MI NO OF LA 511, Caddo, LA
Over: CREEK
1.1 MI EAST OF LA 384, Calcasieu, LA
Over: LITTLE SANDY CK
3.1 M East of LA 67, East Feliciana, LA
Over: SCALAUS CREEK
1.8 M E of LA 959&LA 409, East Feliciana, LA
Over: DE MANUEL COULEE
0.50 Mi N of La 104, Evangeline, LA
Over: GRAND LOUIS BAYOU
0.17 Mi S of La 1160, Evangeline, LA
Over: DE MANUEL COULEE
2.0M EAST OF LA 29, Evangeline, LA
Over: TAUREAU BAYOU
0.73 Mi NW of La 115, Evangeline, LA
Over: EAST BAYOU LACASSINE
0.5 MI W of LA 99, Jefferson Davis, LA
Over: DRAIN
0.7 MI E of US 165, Jefferson Davis, LA
Over: D'ARBONNE BAYOU
1.2 MI SW of US 167, Lincoln, LA
Over: RAWLS BRANCH
0.90 MI W of LA 557, Ouachita, LA
Over: DRAINAGE BAYOU
0.6 Mi W of Meche Rd, St. Landry, LA
Over: BAYOU BOURBEAUX
1.93 Mi SE of LA 754, St. Landry, LA
Over: Bayou Bourbeaux
0.3 Mi. SE Of La 754, St. Landry, LA
Over: Bayou Plaquemine Brule
0.5 Mi. E. of La 35, St. Landry, LA
Over: Drainage Canal
0.48 Mi N of US 190, St. Landry, LA
Over: CREEK
1.2 MI E LA 59 MARION ST., St. Tammany, LA
Over: BAYOU TERREBONNE
0.02 MI S. OF LA 24, Terrebonne, LA
Over: CANE CREEK
1.5 MI SE of US 167, Union, LA
Over: DAVIS CREEK
5.2 MI NW of LA 15, Union, LA
Over: TIGRE BAYOU
0.3 Mi S of Jude Rd, Vermilion, LA
Over: BOGUE LUSA CREEK
1.3 MILES N. OF HWY LA 60, Washington, LA
Over: THOMAS CREEK BRIDGE
6.53 MI W. OF HWY 21, Washington, LA
Over: ARD CREEK BRIDGE
1.6 MI N. OF HWY 438, Washington, LA
Over: CREEK
0.2 MI N of LA 26, Allen, LA
Over: BAYOU CHOUPIQUE
0.4 M E of LA 69&LA 70, Assumption, LA
Over: DINKINS DR.@MO.PAC.RR
0.3 MI.S. LA.511, Caddo, LA
Showing 6,751-6,800 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.