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: MAIN CANAL
1.4M SOUTH OF LAPALCO BLV, Jefferson, LA
Over: Ile Des Cannes Bayou
0.40 MI E of LA 93, Lafayette, LA
Over: COULEE
1.60 Mi E of I-49, Lafayette, LA
Over: VERMILION RIVER
0.9 MI S. of US 167, Lafayette, LA
Over: CREEK
0.62 OF MI. W. OF US 167, Lafayette, LA
Over: CHICKASAW CREEK
01.44 MILES SOUTHEAST OF, LaSalle, LA
Over: CREEK
01.34 MILES SOUTHEAST OF, LaSalle, LA
Over: W. Branch of Dugdemona
1.2 Mi. W. of LA 507, Lincoln, LA
Over: Walnut Creek
2.6 Miles NW of LA 507, Lincoln, LA
Over: EAST SERVICE ROAD
.56 MI SOUTH OF I-10, Orleans, LA
Over: MAGELLAN CANAL
0.1 MI. N. OF WALL BLVD., Orleans, LA
Over: MAGELLAN CANAL
0.1 MI. N. OF WALL BLVD., Orleans, LA
Over: MAGELLAN CANAL
0.4 MI N OF GEN. DEGAULLE, Orleans, LA
Over: MAGELLAN CANAL
0.4 MI N OF GEN. DEGAULLE, Orleans, LA
Over: MAGELLAN CANAL
0.5 M N OF DEGAULLE AVE, Orleans, LA
Over: HILL BAYOU
3.09 MI. NORTH OF LA 3250, Rapides, LA
Over: HURRICANE CREEK
2.07 M. S. OF BLUE LAKE R, Rapides, LA
Over: BAYOU CLEAR
0.01 MI. WEST OF US 165, Rapides, LA
Over: HORSESHOE CANAL
0.03 MI. N. OF LA 1208-1, Rapides, LA
Over: HARPOON BAYOU
MARTHAVILLE ROAD, Sabine, LA
Over: 20 ARPENT CANAL
0.4 MI N OF LA 39, St. Bernard, LA
Over: M P RR
.05 MI SOUTH OF LA 18, St. Charles, LA
Over: SLOW BAYOU E.B.
5.02 MI EAST OF LA 741, St. Landry, LA
Over: SLOW BAYOU W.B.
3.00 Mi W of US 71, St. Landry, LA
Over: HOPE BRANCH
1.3 MILES NORTHWEST OF JC, Tangipahoa, LA
Over: ON RAMP SOUTH US 51
9.9 M S OF LA 22, Tangipahoa, LA
Over: SIX MILE CREEK
0.7 M. SW OF LA 377, Vernon, LA
Over: CASTOR BAYOU
3.97 M. W. OF US 171, Vernon, LA
Over: DRAIN
1.7 M N OF LA 38, Washington, LA
Over: LITTLE SILVER CREEK
0.39 MI NORTH OF LA 1056, Washington, LA
Over: BRIDGE OVER HAY'S CREEK
0.4 MI W. OF PARISH RD 39, Washington, LA
Over: WOLF CREEK
2.94 MI. NW OF LA 499, Winn, LA
Over: BAYOU PLAQUEMINE
0.9 MILES NORTH OF I-10, Acadia, LA
Over: NEW RIVER BAYOU
1.5 MI E I-10-LA 429 JCT, Ascension, LA
Over: CANEY CREEK RELIEF
1.8 MI SOUTH OF LA 389, Beauregard, LA
Over: DUKEDALL CREEK
3.5 MI. E OF LA 155, Bienville, LA
Over: CANAL
18.7 MI W OF LA3147, Cameron, LA
Over: DRAIN
3.34 MI EAST OF JCT LA9, Claiborne, LA
Over: Carson Branch
5.6 M. S. OF JCT. US 165, Grant, LA
Over: Soniat Canal
1.3 MI E OF WILLIAMS BLVD, Jefferson, LA
Over: Soniat Canal
0.06 mi W of David Drive, Jefferson, LA
Over: DRAIN CANAL
0.2 MI E. OF BARATARIA, Jefferson, LA
Over: ELMWOOD CANAL
0.4 Mi N of Veterans BLVD, Jefferson, LA
Over: HWY 343 OVER CREEK
0.49 MI S LA 342, Lafayette, LA
Over: ACADIANA CANAL
.08 Mi E of Raymond St, Lafayette, LA
Over: STUMP ROAD CREEK
0.1 Mi N of McClendon Ln, LaSalle, LA
Over: Canal
0.1 MI. N. of LA 1026, Livingston, LA
Over: BAYOU BOURBEAUX
0.01 MILES NORTH OF LA 48, Natchitoches, LA
Over: EARHART BLVD @ WASH. CAN
.2 MI EAST JEFF DAVIS PKW, Orleans, LA
Over: EARHART BLVD @ WASH. CAN
.2 MI EAST JEFF DAVIS PKW, Orleans, LA
Showing 7,701-7,750 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.