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: BAYOU TERREBONNE
02550650405259, Terrebonne, LA
Over: BAYOU TERREBONNE
LA0024, Terrebonne, LA
Over: BAYOU DELOUTRE
2.0 MI EAST OF LA 143, Union, LA
Over: MERIDIAN CREEK
.9 MI EAST OF LA 549, Union, LA
Over: BIG CANE CREEK
5.6 MI EAST OF LA 549, Union, LA
Over: BIG CANE RELIEF
5.7 MI EAST OF LA 549, Union, LA
Over: CANE CREEK
1.8 MI EAST OF LA 33, Union, LA
Over: DRAINAGE CANAL
3.84 MI S. OF LA 82, Vermilion, LA
Over: DRAIN
1.50 MILES EAST OF LA 450, Washington, LA
Over: BOGUE LUSA CR
LA0060, Washington, LA
Over: DRAIN
0.4 M E OF LA 16, Washington, LA
Over: KCS R/R
0.12M EAST OF LA 159, Webster, LA
Over: LITTLE COLEWA BAYOU
.26 MI WEST OF LA 2, West Carroll, LA
Over: BAYOU
.6 MI EAST OF LA 17, West Carroll, LA
Over: DEEP GULLEY
1.8 MI E OF LA 880, West Carroll, LA
Over: BIG COLEWA BAYOU
2.77 MI EAST OF LA 585, West Carroll, LA
Over: CREEK
2.95 MI EAST OF LA 585, West Carroll, LA
Over: CREEK
4.1 MI EAST OF LA 585, West Carroll, LA
Over: LITTLE COLEWA BAYOU
5.0 MI EAST OF LA 585, West Carroll, LA
Over: PINE BAYOU
3.5 MI EAST OF LA 583, West Carroll, LA
Over: COLEMAN BAYOU
6.1 MI EAST OF LA 583, West Carroll, LA
Over: ALEXANDER CREEK E
1.5 M E of US 61&LA 421, West Feliciana, LA
Over: DRY CREEK
4.16 MI S JCT US 61-LA421, West Feliciana, LA
Over: THOMPSON CREEK TRIBUTARY
1.8 M E of LA 10&LA 955, West Feliciana, LA
Over: PORT DELUCE CREEK RELIEF
0.11 MI. SOUTH OF LA 501, Winn, LA
Over: FLAT CREEK RELIEF
0.88 MI. NTH. JCT. LA126, Winn, LA
Over: BAYOU DES GLAISES
0.01 MI. EAST OF LA 451, Avoyelles, LA
Over: FOUR MILE BAYOU
1.8 MI N.E. OF LA 4, Bienville, LA
Over: BEAR CREEK ROAD
1.9 MI NORTH OF LA 507, Bienville, LA
Over: KANSAS CITY SOUTHERN RR
0.1 MI N OF I-20, Caddo, LA
Over: KAYOUCHE COULEE
0.96 MI. EAST OF LA 14, Calcasieu, LA
Over: WEST FORK ENGLISH BAYOU
0.58 MI. EAST OF LA 397, Calcasieu, LA
Over: WEST FORK ENGLISH BAYOU
2.54 MI. EAST OF LA 397, Calcasieu, LA
Over: FRIERSON BRANCH
2.09 MI N OF I-49, De Soto, LA
Over: CASTOR BAYOU
6.7 MI N. OF US 84, De Soto, LA
Over: DOLET BAYOU
0.46 MI EAST OF LA 177, De Soto, LA
Over: SHEPHERD CREEK
3.4 MI SOUTH OF US 80, Lincoln, LA
Over: SHEPHERD CREEK
3.4 MI SOUTH OF US 80, Lincoln, LA
Over: CAMP BAYOU CANAL
1.7 MI S of LA 835, Morehouse, LA
Over: REAUGAULIE CREEK
FORT POLK, Natchitoches, LA
Over: DRAINAGE CANAL
.65 MI SE OF LA 47, Orleans, LA
Over: DRAINAGE CANAL
0.7 MI SE OF LA 57, Orleans, LA
Over: CUT OFF BAYOU
JONES ROAD, Ouachita, LA
Over: BAYOU DARBONNE
4.2 MI S of LA 2, Union, LA
Over: COOLEY CREEK
2.8M SOUTH OF LA 7, Webster, LA
Over: COW CREEK
0.41 MI E. OF LA 3008, Webster, LA
Over: ALLIGATOR BAYOU
.3 MI. SE. HWY. 17, West Carroll, LA
Over: HURRICANE CREEK
2 Mi. S. of LA 588, West Carroll, LA
Over: FLAT CREEK
3.5 MI S OF LA 26, Allen, LA
Over: CHERRY WINCHE CREEK
0.6 MI. E of SAM CLOUD RD, Allen, LA
Showing 5,451-5,500 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.