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: SELSERS CREEK
0.4 MI. S OF LA. 1067, Tangipahoa, LA
Over: YELLOW WATER CREEK
0.15M E OF US51/WOODSTONE, Tangipahoa, LA
Over: CHAPPEPEELA CREEK
0.2 MI. W OF LA 445, Tangipahoa, LA
Over: YELLOW WATER CREEK
2.4M SE OF EXIT 442, Tangipahoa, LA
Over: LITTLE CHAPEPEELA CREEK
1.7 mi. w of la. 445, Tangipahoa, LA
Over: PEAKS CREEK
2.8 MI SW OF JCT 16 & 445, Tangipahoa, LA
Over: CREEK
.45MI SW US 51 W OLIVE, Tangipahoa, LA
Over: DEADWOOD RD, TIGER BAYOU
.04 MI EAST OF LA 3052, Terrebonne, LA
Over: BIG CORNEY BAYOU
2.2 MI SOUTH OF LA 15, Union, LA
Over: INTRACOASTAL WATERWAY
14.2 MI N. OF LA 3147, Vermilion, LA
Over: DRAKES CREEK
VE823384, Vernon, LA
Over: WHISKEY CHITTO CREEK
VE 858 387, Vernon, LA
Over: WHISKEY CHITTO CREEK
VE 859 388, Vernon, LA
Over: BAYOU ZOURIE TRIB
VE 814 412, Vernon, LA
Over: COMRADE CREEK
VE 818 668, Vernon, LA
Over: MARTIN CREEK
VE 753 653, Vernon, LA
Over: DOWDEN CREEK
VE 713 664, Vernon, LA
Over: DOWDEN CREEK
VE 713 688, Vernon, LA
Over: DOWDEN CREEK
VE 703 688, Vernon, LA
Over: COMRADE CREEK
VE 801 680, Vernon, LA
Over: TRIB OF COMRADE CREEK
V 803 670, Vernon, LA
Over: TIGER CREEK
VE 823 727, Vernon, LA
Over: DRAINAGE TO ZOURIE BAYOU
NEAR WILLIAM ST, Vernon, LA
Over: ZOURIE BAYOU
NEAR RYAN, Vernon, LA
Over: UNKNOWN CREEK
Fort Polk, Vernon, LA
Over: BIRDS CREEK
FORT POLK, Vernon, LA
Over: BIRDS CREEK
FORT POLK, Vernon, LA
Over: W FORK 6MI CREEK
FORT POLK, Vernon, LA
Over: TRIB TO W FORK 6 MI CRK
VE 981 379, Vernon, LA
Over: TRIB TO W FORK 6 MI CRK
VE 965 374, Vernon, LA
Over: BIRDS CREEK
VE 919 379, Vernon, LA
Over: OBANION BRANCH
VE 840 326, Vernon, LA
Over: TRIB TO DRAKES CREEK
VE 853 335, Vernon, LA
Over: TRIB TO DRAKES CREEK
VE 852 334, Vernon, LA
Over: CREEK
1.5 MILES NORTH OF LA 438, Washington, LA
Over: BOONE CREEK
2.33 MI WEST OF LA 7, Webster, LA
Over: COOLEY BRANCH
0.41M E OF LA 7 @ MINDEN, Webster, LA
Over: THOMPSON CREEK BRIDGE
US 61, WEST FELICIANA, West Feliciana, LA
Over: BIG BAYOU SARA
LA0066, West Feliciana, LA
Over: HICKORY CREEK
2.8 MI WEST OF US 171, Beauregard, LA
Over: HICKORY BRANCH
1.7 MI W OF US 171, Beauregard, LA
Over: RED RIVER,FANT&TEAGUE PK
0.31 MILES WEST OF US 71, Caddo, LA
Over: SUMMER GROVE DITCH
1.61NI E OF US HWY, Caddo, LA
Over: CONTRABAND BAYOU
1.0 MILES SOUTH OF I-210, Calcasieu, LA
Over: DRAIN
0.3 MI N of BUS. US 90, Calcasieu, LA
Over: KIRKMAN STREET
2.2 MI W of US 171, Calcasieu, LA
Over: BUXTON CREEK
0.4 MI N of JOHNSON RD, Calcasieu, LA
Over: DEER CREEK
.33 Miles N of LA 915, Catahoula, LA
Over: TRINITY DRAINAGE CANAL
I0010, Iberville, LA
Over: TRINITY DRAINAGE CANAL
I0010, Iberville, LA
Showing 4,451-4,500 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.