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
US0084
GoodOver: DUGEMONA RIVER RELIEF
1.28 MI EAST JCT US 167, Winn, LA
Built 1996 Load: 42.6 t ADT: 4,317
US0084
GoodOver: PINEY WOODS CREEK
4.6 MI EAST OF LA 124, Winn, LA
Built 1998 Load: 42.6 t ADT: 891
US0084
GoodOver: LITTLE POLE LOG CREEK
5.94 MI. EASTOF LA 124, Winn, LA
Built 1998 Load: 42.6 t ADT: 891
US0084
GoodOver: POPE CREEK
9.2 MI EAST OF LA 124, Winn, LA
Built 1998 Load: 42.6 t ADT: 891
US0167
GoodOver: PORT DELUCE CREEK
0.25M S OF INT OF 167&501, Winn, LA
Built 1991 Load: 42.6 t ADT: 8,727
US0080
GoodOver: CROSS BAYOU RELIEF
1.89 MI E OF TEXAS LINE, Caddo, LA
Built 2016 Load: 42.8 t ADT: 3,924
GLEN LEAF DRIVE
GoodOver: TRIB TO GILMER BAYOU
0.2 MI. SOUTH OF LA 511, Caddo, LA
Built 2007 Load: 42.8 t ADT: 900
HORRIDGE STREET
GoodOver: HAMPTON COULEE
0.5 MI N OF US 90, Calcasieu, LA
Built 2020 Load: 42.8 t ADT: 1,118
FIREWOOD DR
GoodOver: KNOX BRANCH
0.4 MI W OF O'NEAL LN, East Baton Rouge, LA
Built 2018 Load: 42.8 t ADT: 1,600
MANHATTAN BLVD
GoodOver: BAYOU FATMA
0.5 M S OF LAPALCO BLVD, Jefferson, LA
Built 1990 Load: 42.8 t ADT: 9,700
Ayreshire Dr.
GoodOver: Rena Coulee
0.03 MI N of Rena Dr, Lafayette, LA
Built 2012 Load: 42.8 t ADT: 4,092
LA0726
GoodOver: COULEE BEAU
0.5 MI EAST OF LA 182, Lafayette, LA
Built 2005 Load: 42.8 t ADT: 13,175
STROZIER RD
GoodOver: STROZIER CREEK
4 MI N. CHENIERE, Ouachita, LA
Built 1985 Load: 42.8 t ADT: 650
LA0121
GoodOver: YELLOW DOG BRANCH
0.6 MILES WEST OF LA 28, Vernon, LA
Built 2015 Load: 42.8 t ADT: 1,700
LA0060
GoodOver: DRAIN
6.0M EAST LA 16 @ ENON, Washington, LA
Built 1993 Load: 42.8 t ADT: 749
Carter Crossing
GoodOver: DUGDEMONA RIVER
1.18 MILES NORTH OF LA 50, Winn, LA
Built 2014 Load: 42.8 t ADT: 380
KEITHVIL-SPRRDG RD
GoodOver: BUCHANAN BAYOU
3.44 MI E OF LA 525, Caddo, LA
Built 2019 Load: 43.1 t ADT: 140
KTHVL-SPRINGRIDGE
GoodOver: BUCHANAN BAYOU
0.7 MI W OF US 171, Caddo, LA
Built 2021 Load: 43.1 t ADT: 140
LINWOOD AVENUE
GoodOver: BOGGY BAYOU
3.0 MI S OF LA 526, Caddo, LA
Built 2021 Load: 43.1 t ADT: 4,925
BUNCOMBE ROAD
GoodOver: TRIB BOGGY BAYOU
2.8 Mi E of US 79, Caddo, LA
Built 2022 Load: 43.1 t ADT: 100
BIG WOODS ROAD
GoodOver: COON GULLY
5.3 MI N OF LA 3063, Calcasieu, LA
Built 2022 Load: 43.1 t ADT: 1,152
Anding Heights Rd
GoodOver: HURRICANE CREEK
0.1 MI E OF US 165, Caldwell, LA
Built 1996 Load: 43.1 t ADT: 840
LITTLE CHENIER RD
GoodOver: LITTLE CHENIER BAYOU
2.0 MI E OF LA 27, Cameron, LA
Built 2021 Load: 43.1 t ADT: 800
Passman Rd
GoodOver: CREEK
0.4 M S of BOGGY BAYOU RD, Concordia, LA
Built 2006 Load: 43.1 t ADT: 150
Morvant Rd
GoodOver: DRAINAGE BAYOU
0.7 MI OF LA 3006, East Baton Rouge, LA
Built 2016 Load: 43.1 t ADT: 994
Morvant Rd
GoodOver: DRAINAGE BAYOU
0.30 MI S OF LA 3006, East Baton Rouge, LA
Built 2017 Load: 43.1 t ADT: 994
Navy Rd.
GoodOver: DURALDE BAYOU
0.50 Mi N of La 374, Evangeline, LA
Built 2004 Load: 43.1 t ADT: 110
Facile Rd
GoodOver: Coulee Ile Des Cannes
0.2 M. South Jenkins Rd, Lafayette, LA
Built 2019 Load: 43.1 t ADT: 442
S. Larriviere Rd.
GoodOver: LA SALLE COULEE
0.08 Mi S of LA 92, Lafayette, LA
Built 2005 Load: 43.1 t ADT: 766
Old Maurice Rd.
GoodOver: MINE COULEE
0.1 Mi NE of Vital Street, Lafayette, LA
Built 1974 Load: 43.1 t ADT: 760
Tiger Dr
GoodOver: BAYOU LAFOURCHE
0.1 MI. E. OF LA 1, Lafourche, LA
Built 2015 Load: 43.1 t ADT: 6,806
LA 15
GoodOver: Boeuf River
7 Mi S of Ouachita PL, Richland, LA
Built 2023 Load: 43.1 t ADT: 2,650
VERONICA DR.
GoodOver: 20 ARPENT CANAL
0.3 MI N OF LA 39, St. Bernard, LA
Built 2014 Load: 43.1 t ADT: 300
LA0360
GoodOver: Bayou Rouge
4.1 Mi. N. of La 10, St. Landry, LA
Built 2022 Load: 43.1 t ADT: 1,000
FAIRGROUND RD
GoodOver: MILE BRANCH
0.3 NORTH OF LA 25, Washington, LA
Built 2005 Load: 43.1 t ADT: 501
John Broussard Rd
GoodOver: WELCH GULLEY
1.3 Mi N of LA 42, Ascension, LA
Built 2000 Load: 43.4 t ADT: 150
Little River Rd
GoodOver: Bayou Rouge
0.67 M E of La 1190, Avoyelles, LA
Built 2020 Load: 43.4 t ADT: 450
E. Bryant Rd
GoodOver: Horsepen Creek
2.78 M N of La 115, Avoyelles, LA
Built 2020 Load: 43.4 t ADT: 75
Guillot Road
GoodOver: Prairie Bayou
1.9 Mi E of LA 115, Avoyelles, LA
Built 2023 Load: 43.4 t ADT: 25
Crouch Rd
GoodOver: White Oak Branch
2.7 MILES SOUTH OF LA HIG, Bossier, LA
Built 2009 Load: 43.4 t ADT: 1,200
I0049
GoodOver: PINEHILL RD
0.82 MI SOUTH OF LA 1, Caddo, LA
Built 2016 Load: 43.4 t ADT: 51,551
I0049
GoodOver: PINEHILL RD
0.82 MI SOUTH OF LA 1, Caddo, LA
Built 2016 Load: 43.4 t ADT: 6,846
Leonard Rd.
GoodOver: Creek
1.0 Mi. W of LA 1, Caddo, LA
Built 2023 Load: 43.4 t ADT: 3,900
Keitchie-Marshall
GoodOver: Little Creek
1.1 Mi. West of LA 169, Caddo, LA
Built 2023 Load: 43.4 t ADT: 59
LA 12
GoodOver: WASH OUT SLOUGH
2.2 MI W OF TEXAS LINE, Calcasieu, LA
Built 2023 Load: 43.4 t ADT: 4,600
LA 12
GoodOver: HURSEY SLOUGH
3.0 MI E OF TEXAS LINE, Calcasieu, LA
Built 2023 Load: 43.4 t ADT: 4,600
LA 12
GoodOver: ASHWORTH SLOUGH
3.2 MI E OF TEXAS LINE, Calcasieu, LA
Built 2023 Load: 43.4 t ADT: 4,600
LA0518
GoodOver: BEAR CREEK
4.79 MI. W. OF LA 154, Claiborne, LA
Built 2013 Load: 43.4 t ADT: 467
Rogers Field Rd
GoodOver: Clement Creek
1.5 Mi. S. of US 84, De Soto, LA
Built 2020 Load: 43.4 t ADT: 50
MOUNCE ROAD
GoodOver: GRAND CANE BAYOU
0.5 MI W OF BLUNT MILL RD, De Soto, LA
Built 2020 Load: 43.4 t ADT: 225
Showing 10,351-10,400 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 |