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: MALLET BAYOU
2.0 Mi W of La 367, Acadia, LA
Over: MALLET BAYOU
2.1 Mi W of La 367, Acadia, LA
Over: OBERLIN DITCH
0.5 MI N of W 9TH AVE, Allen, LA
Over: GUM BRANCH
3.1 MI EAST OF US 165, Allen, LA
Over: BAYOU CHOCTAW
1.3 MI. NORTH OF LA 1, Avoyelles, LA
Over: UPRR
0.41 MI. E. OF I-20, Caddo, LA
Over: DRAIN
0.5 MI. N. OF US190, East Baton Rouge, LA
Over: DRAINAGE CREEK
1.6 MI SW LA67, LA422 JCT, East Feliciana, LA
Over: CREEK
NO DATA ENTERED, Grant, LA
Over: NO DATA ENTERED
NO DATA ENTERED, Grant, LA
Over: Teche Bayou
0.1 Mi. N. Of La 86, Iberia, LA
Over: OAKWOOD CANAL
0.1MI.W OF BELLCHASE, Jefferson, LA
Over: SONIAT CANAL
0.01 MI.WEST.OF.HICK, Jefferson, LA
Over: MINE COULEE
0.4 Miles SW of LA 3025, Lafayette, LA
Over: CREEK
3.36 MILES NORTH JCT LA54, Lincoln, LA
Over: CREEK
1.96 MILES NORTH JCT LA 5, Lincoln, LA
Over: D'ARBONNE BAYOU
2.4 MI N of LA 151, Lincoln, LA
Over: RIGOLETS PASS
8.7 MILES EAST OF CHEF PA, Orleans, LA
Over: CITY STREET/RAILROAD
0.2 MI WEST OF LA 47, Orleans, LA
Over: BAYOU DUPONT
MARTHAVILLE ROAD, Sabine, LA
Over: DRAIN
0.95 MI. NO. LA 25 INTER., St. Tammany, LA
Over: LITTLE NATALBANY RIVER
2.5 MI SW OF JCT OF 16&51, Tangipahoa, LA
Over: TERRY'S CREEK
4.3 MI NW OF JCT 51 &1054, Tangipahoa, LA
Over: COMRADE CREEK
6.09 MI. E OF E JCT. LA 4, Vernon, LA
Over: COBURN CREEK
0.4 MILES NORTH OF LA 10, Washington, LA
Over: CYPRESS CREEK
NO DATA ENTERED, Winn, LA
Over: IATT CREEK
NO DATA ENTERED, Winn, LA
Over: COULEE
4.4 Mi W of La 91, Vermilion, LA
Over: ROGERS CREEK
3.0 MI. S. OF LA 34, Ouachita, LA
Over: RODDY BAYOU
0.9 Mi. S. of LA 42, Ascension, LA
Over: Dutch John Branch
0.6 MI SE OF LA 2, Bossier, LA
Over: DRAIN
.04 MI N of LA 27, Calcasieu, LA
Over: JACQUES COULEE
1.05 MI EAST OF LA 27, Calcasieu, LA
Over: L&NW RAILROAD
0.06 MI E OF US 79, Claiborne, LA
Over: Verret Canal
1.5 Mi S of US 90, Jefferson, LA
Over: WEYRAUCH CANAL
0.6MI.E.OF MANHATTAN, Jefferson, LA
Over: DRAINAGE CANAL
.3 MI E of Rue Du Beller, Lafayette, LA
Over: AMITE RIVER
3 MILES WEST OF LA 1032, Livingston, LA
Over: AMITE RIVER
3 MILES WEST OF LA 1032, Livingston, LA
Over: ALGIERS CANAL
1.0 MILES SOUTH OF US 90B, Orleans, LA
Over: COON CREEK
MONROE, Ouachita, LA
Over: CREEK
0.41 MI. SOUTH OF LA 10, St. Helena, LA
Over: KELLY CANAL
2.80 MI WEST OF US 90, St. Mary, LA
Over: HUNTER CANAL
0.5 MI E of LA 35, Vermilion, LA
Over: SANDERS CREEK
4.2 MI W OF LA 968, West Feliciana, LA
Over: WHITE OAK CREEK
1.01M NW of LA 846, Caldwell, LA
Over: MONTE SANO BAYOU
.30 MI EAST OF HIWAY 19, East Baton Rouge, LA
Over: COTTON CREEK
3.4 MI. E. of LA 409, East Baton Rouge, LA
Over: MARSH BAYOU
0.90 Mi N of La 106, Evangeline, LA
Over: Canal #5
0.3 Miles W of David D, Jefferson, LA
Showing 7,101-7,150 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.