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: CANAL NO 1
0.3 M N OF W ESPLANADE, Jefferson, LA
Over: CHATAUQUA CREEK
0.5 MI W OF US 167, Lincoln, LA
Over: Grays Creek
0.05 Mi. E of LA 16, Livingston, LA
Over: AMITE RIVER
2 MILES WEST OF LA 3002, Livingston, LA
Over: Drain
4.0 Mi. W of I-49, Natchitoches, LA
Over: BAYOU ST. JOHN
0.1 MILE WEST OF ST BERNA, Orleans, LA
Over: Bennet Bayou
1.29 Mi. E. of Jct US 165, Ouachita, LA
Over: INDIAN CREEK RESERVOIR
2.37 MI NW OF LA 112, Rapides, LA
Over: WIGGINS BAYOU
0.6 MI E OF LA 107, Rapides, LA
Over: BAYOU PLAQUEMINE BRULE
1.0 MI EAST OF LA 35, St. Landry, LA
Over: Boatwright Creek
1.7 Mi S. of LA 15, Union, LA
Over: FLOCTAW CREEK
4.99 MI. WEST OF LA 465, Vernon, LA
Over: DRAIN
4 MI. N OF PAR LINE/LA450, Washington, LA
Over: CREEK
0.8 MI. N OF JCT LA 1069, Washington, LA
Over: CREEK
0.15 MI N OF JCT LA 10, Washington, LA
Over: CRYSTAL CREEK
5 MI NORTH JCT 434 & 438, Washington, LA
Over: Caney Creek
4.75 Mi. N of US 79/80, Webster, LA
Over: Little Colewa Bayou
0.3 Mi. W. of LA 2, West Carroll, LA
Over: COULEE
0.8 Mi. N. of La 1115, Acadia, LA
Over: COULEE
0.5 Mi. S. of La 92, Acadia, LA
Over: GULLY
1.63 Mi. N. of La 367, Acadia, LA
Over: Cole Creek
0.8 Mi W of LA 27, Beauregard, LA
Over: BECKWITH CREEK RELIEF
1 MI NE OF LA 110, Beauregard, LA
Over: FLAT CREEK
0.7 MI N of AMPACET DR., Beauregard, LA
Over: CASTOR CREEK
0.34 MI. S. OF LA 507, Bienville, LA
Over: BOGGY BAYOU
0.6 MI S OF LA 169, Caddo, LA
Over: TRIB. TO PINEY BAYOU
1.9 MI W OF LA 169, Caddo, LA
Over: PINEY BAYOU
0.66 MI WEST OF LA 169, Caddo, LA
Over: SHETTLEWORTH BAYOU
2.5 MI. E. OF LA 169, Caddo, LA
Over: TRIB. TO BOGGY BAYOU
2.4 MI SE OF LA 526, Caddo, LA
Over: TYSON BRANCH
0.75 MI EAST OF LA 1, Caddo, LA
Over: E. Settleworth By.
1.5 Mi. E of LA 169, Caddo, LA
Over: BROOKWOOD DITCH
1.0 MILE EAST OF US 171, Caddo, LA
Over: CLINE CANAL
0.05 MILES NORTH OF I-210, Calcasieu, LA
Over: CLINE CANAL
0.05 MILES NORTH OF I-210, Calcasieu, LA
Over: JOHNSON BAYOU
.5 MI N of LA 82, Cameron, LA
Over: Julia St
0.25 Mi S of I-110, East Baton Rouge, LA
Over: Channel L3H
0.3 MI S of US 90 Serv Rd, Iberia, LA
Over: NORRIS BRANCH CANAL
1.04 MI. W. OF LA 3013, Iberia, LA
Over: Commercial Canal
1.2 mi. NE of US 90, Iberia, LA
Over: Poufette Canal
1 MI W of Lee Station Rd, Iberia, LA
Over: Delahossaye Canal
0.02 Mi W of LA 668, Iberia, LA
Over: CANAL 17
0.1 MI. S OF I-10, Jefferson, LA
Over: SAUL'S CANAL
2.7 M NW OF US 90, Jefferson, LA
Over: DUNCAN CANAL
0.5 MI W OF WILLIAMS BLVD, Jefferson, LA
Over: DRAINAGE
.2 MI NE of Grande Ave, Lafayette, LA
Over: GRAY'S CREEK
0.60 MILES WEST OF LA.102, Livingston, LA
Over: Bayou
.75 miles NE of La. 22, Livingston, LA
Over: HORNSBY CREEK
0.50 MI. NORTH OF I-12, Livingston, LA
Over: LONDON AVENUE CANAL
0.08 MI E OF HAVANA ST, Orleans, LA
Showing 10,551-10,600 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.