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
LA0846
GoodOver: CREEK
6.2 MI N OF LA 4, Caldwell, LA
Built 1982 Load: 27.2 t ADT: 650
Wiles Rd
GoodOver: RICHLAND CREEK
0.6M N of LA126, Caldwell, LA
Built 1996 Load: 27.2 t ADT: 70
US0171
GoodOver: ELAM BRANCH
5.0 MI. S. OF LA 3015, De Soto, LA
Built 2009 Load: 27.2 t ADT: 6,604
LA 3064
GoodOver: BAYOU FOUNTAIN
0.3 MILES SOUTH OF HIGHLA, East Baton Rouge, LA
Built 2011 Load: 27.2 t ADT: 4,000
Comite Dr
GoodOver: WHITE BAYOU
0.8 MILES W OF LA6&COMITE, East Baton Rouge, LA
Built 2012 Load: 27.2 t ADT: 5,697
Glenn Oaks Dr
GoodOver: ROBERTS CANAL
BATON ROUGE, LA., East Baton Rouge, LA
Built 1998 Load: 27.2 t ADT: 7,642
LA0386
GoodOver: CATFISH CANAL
1.8 M SW of LA 77, Iberville, LA
Built 1962 Load: 27.2 t ADT: 523
LA3139
GoodOver: RAMP "C"
.85 MI EAST OF LA 3154, Jefferson, LA
Built 1986 Load: 27.2 t ADT: 12,192
Cleary Ave
GoodOver: CANAL #4
1.5 MILES SOUTH OF I-10, Jefferson, LA
Built 2004 Load: 27.2 t
BAINBRIDGE AVE
GoodOver: CANAL NUMBER 14
0.5M SOUTH OF VETERAN, Jefferson, LA
Built 1970 Load: 27.2 t
COOPER LOOP ROAD
GoodOver: COOPER LOOP CREEK
0.02 MI S OF LA 8, LaSalle, LA
Built 2011 Load: 27.2 t ADT: 63
LA0008
GoodOver: HEMPS CREEK WEST
.01 MI NORTH OF LA 127, LaSalle, LA
Built 2007 Load: 27.2 t ADT: 1,628
Crossover Rd
GoodOver: Canal
1.0 mi. south of LA 1025, Livingston, LA
Built 2018 Load: 27.2 t ADT: 668
Hudson Blvd
GoodOver: Hynson Bayou
1.05 MI. NORTHEAST OF LA, Rapides, LA
Built 2015 Load: 27.2 t ADT: 900
HUDSON ROAD
GoodOver: CHATLIN LAKE CANAL
0.9 M SW OF LA 1, Rapides, LA
Built 2018 Load: 27.2 t ADT: 900
Graham Rd
GoodOver: FRONTAGE RD., UP RR
0.45 MI. NORTH OF US 71, Rapides, LA
Built 1996 Load: 27.2 t ADT: 2,000
LA3039
GoodOver: CANAL
3.0 MI NORTH OF LA 347, St. Martin, LA
Built 1965 Load: 27.2 t ADT: 1,807
South Cleveland St
GoodOver: Rattlesnake Creek
0.85 Mi. W. of LA 21, St. Tammany, LA
Built 2019 Load: 27.2 t ADT: 50
LA0016
GoodOver: DRAIN
1.4 M E OF US 51, Tangipahoa, LA
Built 1962 Load: 27.2 t ADT: 12,718
LA0440
GoodOver: DYSON CREEK
LA0440, Tangipahoa, LA
Built 1960 Load: 27.2 t ADT: 752
LA0024
GoodOver: INTRACOASTAL WATERWAY
.03 MI. FROM US 90, Terrebonne, LA
Built 1996 Load: 27.2 t ADT: 29,371
LA0024
GoodOver: INTERCOASTAL WATERWAY
.03 MI EAST OF US 90, Terrebonne, LA
Built 1996 Load: 27.2 t ADT: 20,358
LA0092
GoodOver: COULEE GRANGES
2.43 MI E. OF LA 343, Vermilion, LA
Built 1961 Load: 27.2 t ADT: 5,170
BELVIEW RD
GoodOver: BEESON'S CREEK
3.11 M. S. OF JCT LA 117, Vernon, LA
Built 1999 Load: 27.2 t ADT: 70
Dollar Rd
GoodOver: PUSHEPATAPA CREEK
0.5 MI NORTH OF LA 436, Washington, LA
Built 2011 Load: 27.2 t ADT: 678
LA0439
GoodOver: BOGUE LUSA CREEK
LOGMILE 01.18 ON LA 439, Washington, LA
Built 1964 Load: 27.2 t ADT: 1,235
LA0413
GoodOver: BAYOU POYDRAS
1.2 M S of US 190, West Baton Rouge, LA
Built 1960 Load: 27.2 t ADT: 1,351
Bains Rd
GoodOver: BARROW CREEK
0.73 M NW LA 10&Bains Rd, West Feliciana, LA
Built 1984 Load: 27.2 t ADT: 90
W Yellow Bayou Rd
GoodOver: YELLOW BAYOU
0.01 MI. WEST OF LA 1183, Avoyelles, LA
Built 1990 Load: 27.5 t ADT: 180
Francis Smith Rd
GoodOver: YELLOW BAYOU
5.46 MI. E. OF LEVEE RD., Avoyelles, LA
Built 2003 Load: 27.5 t ADT: 300
Barnes Rd
GoodOver: LEATHERMAN CREEK
0.1 MI SOUTH OF LA 518, Claiborne, LA
Built 1986 Load: 27.5 t ADT: 140
LA3156
GoodOver: TECHE BAYOU
0.08 MI EAST OF LA 182, Iberia, LA
Built 2014 Load: 27.5 t ADT: 5,021
Sellers Rd
GoodOver: COULEE GRANGES
1.65 MI E of LA 343, Lafayette, LA
Built 2013 Load: 27.5 t ADT: 594
Dulles Rd.
GoodOver: COULEE MINE
0.7M WEST OF LA 3025, Lafayette, LA
Built 1989 Load: 27.5 t ADT: 1,560
HOLDEN RD
GoodOver: TURKEY CREEK
1.9 MI W of LA 152, Lincoln, LA
Built 1990 Load: 27.5 t ADT: 80
US0190
GoodOver: DRAIN
3 MILES EAST OF LA63, Livingston, LA
Built 1955 Load: 27.5 t ADT: 7,126
BERNIE TURNER RD
GoodOver: BAYOU
1.4 MI W. LA 599, Morehouse, LA
Built 1997 Load: 27.5 t ADT: 140
WEBB PIERCE RD
GoodOver: BRYANT BRANCH
1.75 MILES NORTH OF LA 34, Ouachita, LA
Built 2012 Load: 27.5 t ADT: 250
Lacoup Rd
GoodOver: BAYOU PIERRE
6.2 MI. W. OF LA 1, Red River, LA
Built 2006 Load: 27.5 t ADT: 82
LA0039
GoodOver: EICKES CANAL
.5 MI NORTH OF LA 36, St. Bernard, LA
Built 2001 Load: 27.5 t ADT: 47,739
Oscar Rivette Rd
GoodOver: Bayou Teche
0.02 Mi. W. of La 31, St. Landry, LA
Built 1977 Load: 27.5 t ADT: 525
LA0014
GoodOver: DRAINAGE
1.6 MI E of LA 338, Vermilion, LA
Built 1999 Load: 27.5 t ADT: 12,903
NOEL RD
GoodOver: NOEL DITCH
1.7 Mi W of La 694, Vermilion, LA
Built 1965 Load: 27.5 t ADT: 360
Beluah
GoodOver: BEULAH CREEK
0.54 MI. NORTH OF LA 1230, Winn, LA
Built 2003 Load: 27.5 t ADT: 160
LA3007
GoodOver: Lyons Point Gully
3 MI East OF LA 13, Acadia, LA
Built 1957 Load: 27.9 t ADT: 575
Lil California Rd
GoodOver: BAYOU CHOCTAW
0.67 M. E. OF END LA 1194, Avoyelles, LA
Built 1998 Load: 27.9 t ADT: 100
Madden Mill Crk Rd
GoodOver: MADDEN MILL CREEK
2.6 MI NORTH OF LA 154, Bienville, LA
Built 1986 Load: 27.9 t ADT: 70
LA0511
GoodOver: DRAINAGE
.6 MI EAST OF LA 1, Caddo, LA
Built 1969 Load: 27.9 t ADT: 18,491
Barnes Rd
GoodOver: FRAZIER CREEK
2.0 MI. S OF LA 518, Claiborne, LA
Built 1997 Load: 27.9 t ADT: 100
Lisbon Hebron Rd
GoodOver: D'ARBONNE BAYOU TRIBUTAR
2.43 MI. S. OF LA 2, Claiborne, LA
Built 1986 Load: 27.9 t ADT: 90
Showing 7,401-7,450 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 |