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: BLOOD RIVER
3.0 MI SOUTHEAST 441 EXIT, Livingston, LA
Over: BAYOU BARTHOLOMEW
2.2 MI. SOUTH OF LA 142, Morehouse, LA
Over: DUPONT BAYOU
5.5 MILES EAST OF LA 487, Natchitoches, LA
Over: LAPINE BAYOU
1.7 MILE EAST HWY 557, Ouachita, LA
Over: DRAIN INTO CHENIERE CREE
1 MI S HWY 80, Ouachita, LA
Over: MARIA BAYOU TRIB. #3
1.0 MI. EAST OF LA 3144, Rapides, LA
Over: BRIDGE OVER BEAVER CREEK
0.6 MI. S. OF LA 38, St. Helena, LA
Over: DARLING CREEK
3.9 MI W JCT LA 43 & LA38, St. Helena, LA
Over: DARLING CREEK
.62 MI W. OF LA 43, St. Helena, LA
Over: TALISHEEK CREEK BRIDGE
LA 435-N ON BOB LEAVY RD, St. Tammany, LA
Over: BAYOU QUE DE TORTUE
2.68 MI. E. OF LA 35, Vermilion, LA
Over: SLEDGE CANAL
0.3 Mi N of La 708, Vermilion, LA
Over: COULEE
0.1 Mi N of La 14, Vermilion, LA
Over: WEST FORK CREEK
3 MI WEST OF JCT LA 121, Vernon, LA
Over: DANIEL BRANCH
0.60 M W of LA 25, Washington, LA
Over: PUSHEPATAPA CREEK
3.2 MI. EAST OF HWY 436, Washington, LA
Over: LAWRENCE CREEK
2.0 MILES N. OF HWY 436, Washington, LA
Over: BRIDGE OVER CREEK
06.48 MI WEST OF HWY 21, Washington, LA
Over: BLACK BAYOU
16.95 MI. N. OF US 79 80, Webster, LA
Over: LAS RR
3.8 MI EAST OF LA 1228, Winn, LA
Over: Coulee
0.2 Mi N. of La 1111, Acadia, LA
Over: CHOUPIQUE BAYOU TRIB.
2.77 MI W OF LA 27, Calcasieu, LA
Over: SAND CREEK
1.42 MI. NORTH OF LA 2, Claiborne, LA
Over: Buck Cr
1.75 Mi. N. of LA 2, Claiborne, LA
Over: LITTLE WALLACE BAYOU
1.44 MI. SOUTH OF NORTH J, De Soto, LA
Over: DURALDE BAYOU
0.65 Mi N of LA 374, Evangeline, LA
Over: SLOUGH
0.11 Mi S of La 106, Evangeline, LA
Over: Armenco Branch Canal
0.6 MI N. of La 675, Iberia, LA
Over: GULLY
1.4 M W of LA 99, Jefferson Davis, LA
Over: COULEE FORTUNE
5.0 MI. WEST OF LA 96, Lafayette, LA
Over: LA SALLE COULEE
1.0 M SW of LA 92, Lafayette, LA
Over: CR
0.6 MI W of US 167, Lincoln, LA
Over: WALNUT BAYOU
0.08 MI S of US 80, Madison, LA
Over: BAYOU NID AIGLE
5.3 MI. NORTH OF LA 495, Natchitoches, LA
Over: BAYOU SANTABARB
0.43 MILE SOUTH OF LA 478, Natchitoches, LA
Over: STEEP BAYOU
2.4 MI E OF LA 15, Ouachita, LA
Over: CUT OFF BAYOU
5.81 MI E of LA 577, Ouachita, LA
Over: BAYOU RAPIDES
0.01 MI N OF BELGARD BEND, Rapides, LA
Over: MILL CREEK
3 MI N OF LA 507, Red River, LA
Over: 20 ARPENT CANAL
0.5 MI N OF LA 39, St. Bernard, LA
Over: TAYLOR CREEK
1.0 MILES WEST OF ETHEL L, St. Helena, LA
Over: BRANCH OF B. COURTABLEAU
1.67 Mi SE of LA 103, St. Landry, LA
Over: DRAINAGE BAYOU
0.74 Mi W of LA 361, St. Landry, LA
Over: CREEK
0.5 MILES NORTH OF GAUSE, St. Tammany, LA
Over: NATALBANY CREEK
1.7 MILES SOUTHEAST OF LA, Tangipahoa, LA
Over: REEDY BRANCH
5.0 MILES NORTHEAST OF JC, Tangipahoa, LA
Over: Selsers Creek
1.5 Mi N. of LA 22, Tangipahoa, LA
Over: DRAIN
LA. 1057, Tangipahoa, LA
Over: IRVING BRANCH
2.4 MI N OF JCT 38 & 1054, Tangipahoa, LA
Over: CREEK
1.0 MI. S OF LA 9, Union, LA
Showing 9,301-9,350 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.