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: SLOUGH
1.2 M S of LA 19&LA 64, East Baton Rouge, LA
Over: DRAGON CREEK
1.4 M SW of LA 64, East Baton Rouge, LA
Over: STREAM NO NAME
1.9 M W of LA 37, East Baton Rouge, LA
Over: Bayou Fountain
4.5 M E of LA 42&LA 327-S, East Baton Rouge, LA
Over: STREAM
3.3 M S of US 61&LA 3246, East Baton Rouge, LA
Over: DRAIN
.8 MI. EAST OF BLUEBONNET, East Baton Rouge, LA
Over: DRAIN
.6 MI W. OF SIEGEN LANE, East Baton Rouge, LA
Over: DRAIN
0.9 M SE of I-10&LA 3246, East Baton Rouge, LA
Over: DRAIN NO NAME
0.5 M N of LA 37&LA 409, East Baton Rouge, LA
Over: JACKS BAYOU
3.4 MI. SE JCT I-12/US 61, East Baton Rouge, LA
Over: WARDS CREEK
.20 MI. E. COLLEGE DR., East Baton Rouge, LA
Over: N. BRANCH WARDS CREEK
0.1 M N OF LA 426, East Baton Rouge, LA
Over: CORPORATION CANAL
80' E OF NICHOLSON DR, East Baton Rouge, LA
Over: HONEYCUT BAYOU
0.02M N. I-12@ONEAL LANE, East Baton Rouge, LA
Over: Monte Sano Bayou
1.2 M E OF LA 19, East Baton Rouge, LA
Over: BAYOU
0.1 MI N of LA 580, East Carroll, LA
Over: DRAIN TO JONES BAYOU
2.0 MI N of LA 580, East Carroll, LA
Over: CREEK
1.5 M SW of LA 422, East Feliciana, LA
Over: STREAM
0.7 M W of LA 10&LA 19, East Feliciana, LA
Over: STREAM NO NAME
1.9 M NE of LA 63&LA 960, East Feliciana, LA
Over: DOZA BAYOU
0.52 Mi S of La 29, Evangeline, LA
Over: COULEE
0.10 Mi S of La 1163, Evangeline, LA
Over: DRAINAGE CANAL
.3 Mi East of LA 3068, Evangeline, LA
Over: US 190 DRAINAGE CANAL
6.18 MI EAST OF LA 1157-2, Evangeline, LA
Over: BAYOU DES CANNES
3.6 MI EAST OF LA 376, Evangeline, LA
Over: DRAIN
1.2 Mi East of LA 748, Evangeline, LA
Over: DRAIN
0.2 miles East of LA 3277, Evangeline, LA
Over: DRAIN
5.5 MI EAST OF LA 3277, Evangeline, LA
Over: Bayou Choupique
4.9 Miles NE of LA 13, Evangeline, LA
Over: DRAIN
0.1 MI N OF LA 1162, Evangeline, LA
Over: DRAIN
2.31 MI East oF LA 10, Evangeline, LA
Over: DRAIN
4.02 MI WEST OF LA 10, Evangeline, LA
Over: BAYOU PETITE PASSE
.5 MI EAST OF LA 363, Evangeline, LA
Over: DRAIN
1.1 MI EAST OF LA 104, Evangeline, LA
Over: DRAIN
4.05 MI EAST OF LA 104, Evangeline, LA
Over: DRAIN
2.9 MI EAST OF LA 103, Evangeline, LA
Over: BAYOU
0.52 MI NORTH OF LA 29, Evangeline, LA
Over: DRAIN
1.02 MI EAST OF LA 3277, Evangeline, LA
Over: BEAVER CREEK
0.6 MI S of LA 106, Evangeline, LA
Over: CYPRESS CREEK
3.0 Mi N of La 10, Evangeline, LA
Over: MOUND BAYOU
LOGMI FR 303 TO ODE, Franklin, LA
Over: Ash Slough
1.1 Mi E of LA 425, Franklin, LA
Over: CREEK
LOGMI 1.88 FR 655 TO 0DE, Franklin, LA
Over: CREEK
LOGMI 3.59 FR ODE TO 248, Franklin, LA
Over: CREEK
0.80 M S of LA 1242, Franklin, LA
Over: CREEK
5.02 MI NORTH OF LA 4, Franklin, LA
Over: CREEK
.36 MI NORTH OF LA 618, Franklin, LA
Over: CREEK
LOG MI 5.94 FR 557 TO 437, Franklin, LA
Over: CAMPBELL ROAD CREEK
LOGMI 0.59 FR 316 TO 318, Franklin, LA
Over: TURKEY CREEK
2.79 mi. W of LA 17, Franklin, LA
Showing 8,051-8,100 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.