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: DRAINAGE BAYOU
S. CHOCTAW DR., East Baton Rouge, LA
Over: HURRICANE CR.
0.8 M E OF LA 67, East Baton Rouge, LA
Over: DRAINAGE BAYOU
0.1 M E of US 61, East Baton Rouge, LA
Over: Sharp Station Canal
0.2 M S of LA 37, East Baton Rouge, LA
Over: CREEK
2.3 MI SOUTH OF LA 580, East Carroll, LA
Over: CREEK
.2 MI SOUTH OF LA 580, East Carroll, LA
Over: BRUSHY MACON
2.73 MI WEST OF US 65, East Carroll, LA
Over: DITCH
4.7 MI W of US 65, East Carroll, LA
Over: BAXTER BAYOU
1.9 MI SOUTH OF HWY 2, East Carroll, LA
Over: STREAM NO NAME
1.1 MILES WEST OF JCT. LA, East Feliciana, LA
Over: STREAM NO NAME
1.2 M N of LA 10&LA 67, East Feliciana, LA
Over: WALNUT BRANCH
1.4 M N of LA 10&LA 67, East Feliciana, LA
Over: PRETTY CREEK TRIB
3.1 M SW of LA 432&LA 67, East Feliciana, LA
Over: CREEK
0.3 M E of LA 10&LA 421, East Feliciana, LA
Over: NO NAME
0.4 M N of LA 10, East Feliciana, LA
Over: BAYOU DURALDE
1.9 MI NORTH OF LA 374, Evangeline, LA
Over: DRAIN
,01 MI NORTH OF LA 1160, Evangeline, LA
Over: DRAIN
1.4 MI East of LA 181, Evangeline, LA
Over: CREEK
1.8 MI SOUTH OF LA 1241, Grant, LA
Over: JAMES BRANCH
1.4 MI NORTH OF LA 1241, Grant, LA
Over: CREEK
1.4 MI NORTH OF LA 492, Grant, LA
Over: SMALL CREEK
0.02 MI. WEST OF US 165, Grant, LA
Over: SMALL CREEK
.55 MI SOUTH OF LA 3130, Grant, LA
Over: CLEAR CREEK
3.0 MI NORTH OF LA 3130, Grant, LA
Over: LITTLE CREEK
1.15 MI. NORTH OF LA 123, Grant, LA
Over: CYPRESS CREEK
2.5 MI NORTH OF LA 123, Grant, LA
Over: CROSS BAYOU
5.3 MI NORTH OF LA 123, Grant, LA
Over: CREEK
0.3 MI. NORTH OF LA 1230, Grant, LA
Over: CREEK
7.27 MI. NORTH OF LA 123, Grant, LA
Over: CREEK
.3 MI EAST OF US 165, Grant, LA
Over: HUDSON CREEK
2.54 M. N. OF US 71, Grant, LA
Over: PEEBLES CANAL
0.10 Mi E of LA 83, Iberia, LA
Over: PEEBLES CANNAL
6.20 Mi W of LA 85, Iberia, LA
Over: PEEBLES B DUBOIN
2.2 MI NORTH OF LA 85, Iberia, LA
Over: JACK COULEE
1.1 MI NORTH OF LA 85, Iberia, LA
Over: CREEK
3.30 Mi SE of LA 88, Iberia, LA
Over: W-8 MAIN CANAL
0.44 M NE of LA 76&LA 411, Iberville, LA
Over: NO NAME
1.2 M NE of LA 76&LA 411, Iberville, LA
Over: BAYOU MANCHAC
2.4 M S of LA 327&LA 30, Iberville, LA
Over: CREEK
4.1 MILES NORTH OF WINN P, Jackson, LA
Over: CREEK
2.1 MI NORTH OF WINN PARI, Jackson, LA
Over: CREEK
.5 MI NORTH OF LA 505, Jackson, LA
Over: CREEK
3.3 MI NORTH OF LA 505, Jackson, LA
Over: CREEK
3.8 MI NORTH OF LA 505, Jackson, LA
Over: CREEK
4.3 MI NORTH OF LA 505, Jackson, LA
Over: CREEK
0.1 Mi. North LA 147, Jackson, LA
Over: CREEK
17.1 MI N WINN PARISH LN, Jackson, LA
Over: BROWN CREEK
.39 MI EAST OF LA 505, Jackson, LA
Over: CREEK
3.8 MI NORTH OF LA 812, Jackson, LA
Over: COW CREEK
.8 MI N. INT. RT. 222, Jackson, LA
Showing 3,951-4,000 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.