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: LITTLE TENSAS BAYOU
2.3 MI W of US 65, Madison, LA
Over: CREEK
1.0 MI N RICHLAND PAR LN, Morehouse, LA
Over: DRAIN
3.45 M N OF LA 120, Natchitoches, LA
Over: DRAINAGE DITCH
1.10 MI NORTH OF LA 119, Natchitoches, LA
Over: JOWERS CREEK
0.2 MILES WEST OF LA 490, Natchitoches, LA
Over: SALINE LAKE TRIBUTARY
2.33 M. NE OF END LA 1226, Natchitoches, LA
Over: JAHNCKE CANAL
3 MILES WEST OF I-510, Orleans, LA
Over: PATRICK CREEK
0.5 MILES WEST OF CHENIER, Ouachita, LA
Over: DRAIN
0.7 MI E of US 165, Ouachita, LA
Over: BAYOU
LA 841, Ouachita, LA
Over: DRAIN TO LAPINE BAYOU
0.61 MI SE of LA 548, Ouachita, LA
Over: MILL BAYOU
0.1 MI E of LA 134, Ouachita, LA
Over: BLACK BAYOU
3.4 M S OF BATCHELOR, Pointe Coupee, LA
Over: CREEK
2.35 MI. WEST OF LA 121, Rapides, LA
Over: DRAINAGE DITCH
0.39 MI. NORTH OF LA 3170, Rapides, LA
Over: CREEK
0.2 MI. EAST OF LA 462, Rapides, LA
Over: CREEK
2.09 MI. NORTH OF LA 462, Rapides, LA
Over: CREEK
2.73 MI. NORTH OF LA 462, Rapides, LA
Over: ISLAND BAYOU
4.68 MI. EAST OF LA 115, Rapides, LA
Over: CHENEY CREEK
3.34 MILES SE OF LA 497, Rapides, LA
Over: HORSEPEN CREEK RELIEF
2.3 M. N. OF B. MILLER RO, Rapides, LA
Over: HAINES CREEK
2.01 MI. SOUTH OF LA 28, Rapides, LA
Over: DYSON CREEK
0.52 MI. SOUTH OF LA 28, Rapides, LA
Over: COUSHATTA BAYOU TRIB.
0.6 MI. WEST OF US 71, Red River, LA
Over: TRIBUTARY TO BLACK BAYOU
0.5 MI E OF LA 507, Red River, LA
Over: ASH SLOUGH
LOGMI 8.97 FR 1DE TO, Richland, LA
Over: STEEP BAYOU
2.5 MI NE of LA 133, Richland, LA
Over: LITTLE CREEK
0.2 MI W of US 425, Richland, LA
Over: AUGUSTINE BAR CREEK
08434320155501, Sabine, LA
Over: N. TOLEDO PARK TRIB
1.92 MI. WEST OF LA 191, Sabine, LA
Over: CREEK
1.1 M N OF LA 37, St. Helena, LA
Over: DRAIN
3.0 WEST OF LA 449 INTER, St. Helena, LA
Over: BEAR CREEK
5.6M EAST OF LA 449, St. Helena, LA
Over: DAY BRANCH CREEK PIPE
3.6 MI N. OF HWY. 38, St. Helena, LA
Over: BAYOU VERRET
1.1 M EAST OF LA 70&3127, St. James, LA
Over: Drain
0.10 Mi. E. of LA 3188, St. John the Baptist, LA
Over: Drain
0.75 Mi. E. of LA 3188, St. John the Baptist, LA
Over: BAYOU PETITE PRAIRIE
0.01 MI NW OF LA 361, St. Landry, LA
Over: BAYOU BOURBEAUX
0.45 MI W of LA 182, St. Landry, LA
Over: CANAL
1.1 MI S of US 190, St. Landry, LA
Over: BAYOU WIKOFF
1.3 MI E of LA 1104, St. Landry, LA
Over: DRAINAGE CANAL
2.8 MI E of LA 1104, St. Landry, LA
Over: DRAINAGE CANAL
3.1 W of LA 182, St. Landry, LA
Over: BAYOU BOURBEAUX
1.1 MI W of LA 182, St. Landry, LA
Over: DRAINAGE CANAL
0.51 MI. EAST OF LA 357, St. Landry, LA
Over: Drainage Ditch
0.3 Mi. S. of La 759, St. Landry, LA
Over: Bayou Saquette
2.5 Mi. E. of La 103, St. Landry, LA
Over: BAYOU PATTERSON
8.3 MI West of LA 182, St. Mary, LA
Over: CANAL
0.4 MILES N OF LA. 1085, St. Tammany, LA
Over: DRAIN
2.6 M N OF LA 435, St. Tammany, LA
Showing 6,601-6,650 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.