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: BAYOU RAPIDES
1.52 MI. NORTH OF LA 28, Rapides, LA
Over: CREEK
2.0 Mi. E of US 371, Red River, LA
Over: DRAIN
2.0 MI EAST OF LA 609, Richland, LA
Over: VACHERIE CANAL
3.24 Mi W of LA 83, St. Mary, LA
Over: CLEAR BRANCH
0.36 MILES WEST OF LA 10, Vernon, LA
Over: BUNDICK CREEK
VE799315, Vernon, LA
Over: HAMMER CREEK
LA0965, West Feliciana, LA
Over: DRAIN TO CHENIERE BRAKE
0.7 MI. W. HWY. 3033, Ouachita, LA
Over: EAST BEDICO CREEK
1.33 MILES NORTH OF LA 22, Tangipahoa, LA
Over: CREEK
0.4 M NW OF LA 1058, Tangipahoa, LA
Over: BLUE BAYOU
0.9 MI. S. OF CC BELL RD, Allen, LA
Over: BLACK BAYOU
.88 MI. EAST OF TEXAS STA, Caddo, LA
Over: STATE LINE CREEK
1.29 MI. EAST OF TEXAS ST, Caddo, LA
Over: DRAIN
7.29 MI SOUTH OF LA 538, Caddo, LA
Over: DRAIN
2.6 MI SOUTH OF I-10, Calcasieu, LA
Over: CONTRABAND BAYOU
0.06 MI N OF LA 3186, Calcasieu, LA
Over: CREEK
3.95 MI W OF LA 126, Caldwell, LA
Over: ROCKY BRANCH
.22 MI NORTH OF LA 763, De Soto, LA
Over: DRAIN
.09 MI NORTH OF LA 481, De Soto, LA
Over: JONES CREEK
US0190, East Baton Rouge, LA
Over: FROG CREEK
3.1 MI S of LA 580, East Carroll, LA
Over: GRAND BAYOU
2.7 M N of LA 70, Iberville, LA
Over: MURPHY CANAL
0.3 MI E OF LA 3017, Jefferson, LA
Over: BONNABEL CANAL
0.5 MI. E OF CAUSEWA, Jefferson, LA
Over: GUM GULLY
0.7 M E of LA 395, Jefferson Davis, LA
Over: GUM GULLY
3.8 MI. S. OF LA 102, Jefferson Davis, LA
Over: DRAINAGE
.2 MI. E. OF K Saloom Rd, Lafayette, LA
Over: HEMPHILL CREEK
1.7 MI NORTH OF US 84, LaSalle, LA
Over: SQUIRES CREEK
2.49 MI N of US 80, Lincoln, LA
Over: KANSAS CITY SOUTHERN
EVERETT SR / RUSTON, Lincoln, LA
Over: TENSAS RIVER
3.0 MI EAST OF LA 577, Madison, LA
Over: LITTLE B GALION
1.02 MI NORTH OF LA 2, Morehouse, LA
Over: BAYOU GALION
4.9 MI S & E INT., Morehouse, LA
Over: MORGANZA SPILLWAY
LA0001, Pointe Coupee, LA
Over: BAYOU BOEUF
0.9 MI. SOUTH OF US 71, Rapides, LA
Over: TURKEY CREEK
0.5 MI NW of US 80, Richland, LA
Over: BLACK BAYOU
LA 182 SOUTHDOWN-MANDALAY, Terrebonne, LA
Over: CREEK
.66 MI EAST OF US 371, Webster, LA
Over: DRY CREEK
.3 MI EAST OF LA 3014, Webster, LA
Over: TRIB TO PRAIRIE BAYOU
0.8 MI W OF HWY 163, Webster, LA
Over: TRIBUTARY TO MILE CREEK
0.3 MI W OF HWY 79-8, Webster, LA
Over: CREEK
4.17 MI. N OF INT LA12, Beauregard, LA
Over: COLLINSBURG CREEK
4.27 MI NORTH OF LA 160, Bossier, LA
Over: TRIB. TO CHOCTAW BAYOU
0.7 MI. EAST OF LA 173, Caddo, LA
Over: GOVERNMENT DITCH
3.8 MI SOUTH OF LA 14, Calcasieu, LA
Over: ENGLISH BAYOU LATERAL 14
0.2 MI N OF DAVID ST, Calcasieu, LA
Over: MULBBERRY CREEK
2.3M NORTH OF LA 152, Claiborne, LA
Over: Cocodrie Bayou
LOGMI 3.60 E FROM Hwy 129, Concordia, LA
Over: Cocodrie Bayou
LOG MI 2.55 SE OF Hwy 129, Concordia, LA
Over: BIG BRANCH
2.14 MI NORTH OF LA 763, De Soto, LA
Showing 2,651-2,700 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.