Total Bridges
12,699
Public highway bridges in Louisiana
State profile · Above national median SD
Louisiana bridge safety
Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Louisiana — drawn straight from the FHWA National Bridge Inventory.
- 12,699
- Public bridges
- 36.2%
- Good condition
- 11.0%
- Poor condition
- 11.0%
- Structurally deficient
Good Condition
36.2%
4,603 bridges rated 7-9
-13.8pp vs 50% benchmark
Poor Condition
11.0%
1,397 bridges rated 0-4
Structurally Deficient
11.0%
1,397 bridges flagged for repair priority
4.0pp vs national avg 7.0%
Louisiana vs national bridge condition
Louisiana — Good condition share 36.2%
National avg
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Louisiana — Structurally deficient share 36.7%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
Bridge inventory deck-condition mix — Louisiana (FHWA NBI)
Counties (64)
Acadia 282 Allen 178 Ascension 216 Assumption 68 Avoyelles 147 Beauregard 221 Bienville 190 Bossier 270 Caddo 682 Calcasieu 463 Caldwell 124 Cameron 58 Catahoula 70 Claiborne 148 Concordia 42 De Soto 201 East Baton Rouge 548 East Carroll 55 East Feliciana 133 Evangeline 156 Franklin 131 Grant 209 Iberia 143 Iberville 80 Jackson 163 Jefferson 379 Jefferson Davis 240 LaSalle 195 Lafayette 323 Lafourche 130 Lincoln 171 Livingston 253 Madison 104 Morehouse 136 Natchitoches 313 Orleans 382 Ouachita 337 Plaquemines 34 Pointe Coupee 50 Rapides 523 Red River 63 Richland 207 Sabine 195 St. Bernard 47 St. Charles 82 St. Helena 139 St. James 26 St. John the Baptist 40 St. Landry 317 St. Martin 116 St. Mary 124 St. Tammany 360 Tangipahoa 477 Tensas 52 Terrebonne 215 Union 121 Vermilion 261 Vernon 341 Washington 285 Webster 194 West Baton Rouge 73 West Carroll 88 West Feliciana 108 Winn 220
Louisiana vs nearby ranks
Adjacent states on the structurally deficient leaderboard (lower share = better)
States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Louisiana on the same metric.
42
Pennsylvania
10.50% top marginal rate
38
North Dakota
10.84% top marginal rate
22
Louisiana
11.00% top marginal rate
72
Puerto Rico
11.98% top marginal rate
23
Maine
13.23% top marginal rate
Bridges Needing Most Attention in Louisiana
Six lowest-condition bridges in Louisiana, ranked by composite NBI rating. Each is inspected at least every 24 months.
Layton Coco Xing
Structurally DeficientOver: BAYOU DES GLAISES
0.01 MI. EAST OF LA 451, Avoyelles, LA
Built 1986 Load: 0.9 t ADT: 40
LA1077
Structurally DeficientOver: BLACK BAYOU
1.1 M S OF LA 22, St. Tammany, LA
Built 1965 Load: 0.9 t ADT: 1,019
LA0308
Structurally DeficientOver: BAYOU LAFOURCHE
.01 MI NORTH OF LA 1, Lafourche, LA
Built 1970 Load: 1.0 t ADT: 5,198
Ebeneezer Tap Rd
PoorOver: JONES CREEK
0.65 Mi South of LA 500, LaSalle, LA
Built 1989 Load: 1.2 t ADT: 300
Anderson Rd
Structurally DeficientOver: HYDE BR.
2 MI S OF 1054 & 440, Tangipahoa, LA
Built 1960 Load: 1.2 t ADT: 25
Stubblefield Rd
PoorOver: BAYOU ROUGE
APPROX. 1 M. S. OF LA 361, Avoyelles, LA
Built 1975 Load: 2.3 t ADT: 40
All Bridges in Louisiana
LA0038
FairOver: BEAVER CREEK
3.9 M E OF LA 441, St. Helena, LA
Built 1952 Load: 14.8 t ADT: 1,535
LA1047
FairOver: WEST NATALBANY CREEK
0.4 M SW OF LA 1048, St. Helena, LA
Built 1958 Load: 14.8 t ADT: 287
Wadesboro Rd
FairOver: CANAL
1.6 MI SW OF SR 22 E, Tangipahoa, LA
Built 1960 Load: 14.8 t ADT: 366
LA0389
FairOver: DRAIN
0.05 MI. S OF US 190, Beauregard, LA
Built 1951 Load: 14.9 t ADT: 442
Keith Rd
FairOver: Trib. to Buchanan Bayou
0.4 SO OF HWY 525, Caddo, LA
Built 1978 Load: 14.9 t ADT: 40
FDR 904
FairOver: SUGAR CREEK
1.3 MILES WEST OF LA. 9, Claiborne, LA
Built 1982 Load: 14.9 t ADT: 30
FDR 910
FairOver: TRIB. MIDDLE FORK CREEK
3.0 MI. NORTH LA. 9, Claiborne, LA
Built 1980 Load: 14.9 t ADT: 30
FDR 120
FairOver: PANTHER BAYOU TRIB.
NO DATA ENTERED, Grant, LA
Built 1981 Load: 14.9 t ADT: 15
FDR 120
FairOver: FISH CREEK
NO DATA ENTERED, Grant, LA
Built 1982 Load: 14.9 t ADT: 15
145 PR
FairOver: DYSON CREEK
NO DATA ENTERED, Grant, LA
Built 1982 Load: 14.9 t ADT: 30
FDR 530
FairOver: BRUSHY CREEK
NO DATA ENTERED, Grant, LA
Built 1965 Load: 14.9 t ADT: 20
FDR 558
FairOver: PRAIRIE CREEK
LOGMI 0.48 FR 569 TO, Grant, LA
Built 1965 Load: 14.9 t ADT: 34
JENIUS RD.
FairOver: THORNWELL CANAL
0.6 MI N of LA 14, Jefferson Davis, LA
Built 1978 Load: 14.9 t ADT: 40
CORMIER VILLAGE RD
FairOver: CREEK
2.2 E of LA 101, Jefferson Davis, LA
Built 1979 Load: 14.9 t ADT: 250
THEO ROAD
FairOver: CREEK
0.5 MI E of PanchovilleRd, Jefferson Davis, LA
Built 1978 Load: 14.9 t ADT: 48
Chemin Metairie
FairOver: COULEE
0.1 MI N. of La 3073, Lafayette, LA
Built 1979 Load: 14.9 t ADT: 580
LA0818
FairOver: CREEK
3.0 MI SOUTH OF LA 3061, Lincoln, LA
Built 1979 Load: 14.9 t ADT: 1,542
LA1024
FairOver: BEAVER CREEK
0.8 M E OF LA 16, Livingston, LA
Built 1962 Load: 14.9 t ADT: 1,020
US0165
FairOver: B BONNE IDEE
.8 MI NORTH OF NORTH INT, Morehouse, LA
Built 1936 Load: 14.9 t ADT: 1,405
FDR 605
FairOver: DRY CHOCTAW CR. TRIB.
1.5 MI. N/N.E. OF CHESTNT, Natchitoches, LA
Built 1970 Load: 14.9 t ADT: 30
Rice Rd
FairOver: LITTLE FORDOCHE CREEK
1.45 M. SW OF GOLDONNA RO, Natchitoches, LA
Built 1970 Load: 14.9 t ADT: 102
GRAMMONT ST
FairOver: W PRONG YOUNGS BAYOU
GRAMMONT ST IN MONRO, Ouachita, LA
Built 1970 Load: 14.9 t ADT: 250
LA0001
FairOver: BAYOU WHITE VINE
6.71 M N of Morganza, Pointe Coupee, LA
Built 1935 Load: 14.9 t ADT: 4,369
FDR 253
FairOver: ROARING CREEK
NO DATA ENTERED, Rapides, LA
Built 1982 Load: 14.9 t ADT: 30
US0080
FairOver: DRAIN
2.0 MI EAST OF LA 183, Richland, LA
Built 1930 Load: 14.9 t ADT: 1,451
W. North St.
FairOver: BAYOU TESSON
0.2 Mi W. of La 182, St. Landry, LA
Built 1935 Load: 14.9 t ADT: 500
W. Grolee St.
FairOver: BAYOU TESSON
0.3 Mi W. of La 182, St. Landry, LA
Built 1935 Load: 14.9 t ADT: 800
Rufus Bankston Rd
FairOver: CREEK
2.2 NW OF 190 EXIT ON 55, Tangipahoa, LA
Built 2000 Load: 14.9 t ADT: 3,941
CHAUVIN BRIDGE RD
FairOver: PETIT CAILLOU BAYOU
0.02 MI SW OF LA 56, Terrebonne, LA
Built 2011 Load: 14.9 t ADT: 720
Boat Shop Rd
FairOver: TIGRE BAYOU
1.1 Mi W of LA 331, Vermilion, LA
Built 1970 Load: 14.9 t ADT: 350
FDR 400
FairOver: TIGHTEYE CREEK
9.5 MI. ENE. OF ROSPINE, Vernon, LA
Built 1982 Load: 14.9 t ADT: 60
GEORGIA AVE
FairOver: BUNDICK CREEK
VE799316, Vernon, LA
Built 1978 Load: 14.9 t ADT: 336
FDR 522
FairOver: WOLF CREEK
LOGMI 3.40 FR 536 TO, Winn, LA
Built 1977 Load: 14.9 t ADT: 30
FDR 537
FairOver: WOLF CREEK TRIBUTARY
6 MI. WSW OF WINNFIELD, Winn, LA
Built 1975 Load: 14.9 t ADT: 30
Bert Allen Rd
FairOver: DRAINAGE BAYOU
0.4 M N of LA 621, Ascension, LA
Built 1969 Load: 15.2 t ADT: 100
N PUMPKIN RDGE RD
FairOver: CATTLE CROSSING
2.7 MI N of INT LA 82, Cameron, LA
Built 1976 Load: 15.2 t ADT: 658
LA0010
FairOver: BLACK CREEK
1 M E of LA 10&LA 68, East Feliciana, LA
Built 1951 Load: 15.2 t ADT: 5,830
LA0132
FairOver: CREEK
2.5 MI WEST OF LA 859, Franklin, LA
Built 1965 Load: 15.2 t ADT: 431
LA0865
FairOver: ASH SLOUGH
1.4 MI EAST OF LA 4, Franklin, LA
Built 1970 Load: 15.2 t ADT: 1,879
FDR 610
FairOver: LITTLE BEAR CR
LOG 2.62 FR 657 TO, Grant, LA
Built 1962 Load: 15.2 t ADT: 28
Mudville Rd
FairOver: CREEK
0.48 M. NE OF US 165, Grant, LA
Built 1935 Load: 15.2 t ADT: 130
Eighty Arpent Rd
FairOver: Coulee
1.2 Miles East of LA 673, Iberia, LA
Built 1967 Load: 15.2 t ADT: 64
US0190
FairOver: CREEK
0.2 M W OF LA 1024, Livingston, LA
Built 1953 Load: 15.2 t ADT: 8,880
WESTLAKE DR
FairOver: BARTHOLOMEW BAYOU
ENTRANCE TO SUBDIVIS, Ouachita, LA
Built 1968 Load: 15.2 t ADT: 1,443
FDR 208
FairOver: ODEN BRANCH
NO DATA ENTERED, Rapides, LA
Built 1977 Load: 15.2 t ADT: 10
LA0752
FairOver: BAYOU MALLET
2.73 MI E OF LA 751, St. Landry, LA
Built 1968 Load: 15.2 t ADT: 475
Zin Zin Rd
FairOver: COULEE
0.7 Mi. S of LA 349, St. Martin, LA
Built 1966 Load: 15.2 t ADT: 658
Adam Guidry Rd
FairOver: COULEE
0.2 Mi. SW of LA 686, St. Martin, LA
Built 1968 Load: 15.2 t ADT: 160
Eden Isle Subd.
FairOver: BR. OVER EDEN ISLES CANA
2.4 MI S JCT US N & LA433, St. Tammany, LA
Built 1974 Load: 15.2 t ADT: 4,576
FDR 523
FairOver: CR. @ 523
LOGMI 1.17 FR 502 TO, Winn, LA
Built 1975 Load: 15.2 t ADT: 150
Showing 1,201-1,250 of 12,699 bridges
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.
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). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.
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.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |