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
LA0128
GoodOver: DEER CREEK CUT OFF
3.20 MI E OF LA.15, Franklin, LA
Built 2016 Load: 55.1 t ADT: 906
LA0860
GoodOver: Frog Island Slough
1.7 mile W. of LA 17, Franklin, LA
Built 2018 Load: 55.1 t ADT: 199
LA1126
GoodOver: Drain
0.6 MI E of LA 26, Jefferson Davis, LA
Built 2017 Load: 55.1 t ADT: 418
LA1126
GoodOver: LITTLE DITCH
1.9 MI E of LA 382, Jefferson Davis, LA
Built 2017 Load: 55.1 t ADT: 507
LA0308
GoodOver: DRAINAGE CANAL
1.2 MI. NW. OF US90, Lafourche, LA
Built 2018 Load: 55.1 t ADT: 4,131
LA3061
GoodOver: Barnet Springs Creek
00.54 Mi. E. of LA 818, Lincoln, LA
Built 2019 Load: 55.1 t ADT: 3,433
LA0557
GoodOver: RAWLS BRANCH
1.9 MI S OF LA 34, Ouachita, LA
Built 2016 Load: 55.1 t ADT: 3,528
LA0557
GoodOver: Cypress Creek
10.30 Mi. S. of LA 34, Ouachita, LA
Built 2019 Load: 55.1 t ADT: 1,073
LA0761
GoodOver: Carencro Bayou
0.07 MI0. W0. OF LA 93, St. Landry, LA
Built 2017 Load: 55.1 t ADT: 348
LA1062
GoodOver: Drain
2.9 Mi. W. of La 445, Tangipahoa, LA
Built 2019 Load: 55.1 t ADT: 3,571
LA1062
GoodOver: Spring Creek
0.8 Mi W of LA 445, Tangipahoa, LA
Built 2019 Load: 55.1 t ADT: 3,571
LA1062
GoodOver: LITTLE CHAPPEPEELA CREEK
3.13 MI NE OF LA.40, Tangipahoa, LA
Built 2016 Load: 55.1 t ADT: 3,571
LA3011
GoodOver: SALE BAYOU
.01 MI WEST OF LA 57, Terrebonne, LA
Built 2018 Load: 55.1 t ADT: 841
LA0690
GoodOver: Banker Canal
1.98 Mi E of LA 82, Vermilion, LA
Built 2018 Load: 55.1 t ADT: 738
US0080
GoodOver: BOONE CREEK
2.4 MI W OF JCT US 371, Webster, LA
Built 2019 Load: 55.1 t ADT: 2,376
LA0126
GoodOver: CYPRESS CREEK
1.7 MI. E. of LA 1233, Winn, LA
Built 2019 Load: 55.1 t ADT: 310
Hazard Rd
GoodOver: Armenco Branch Canal
0.90 Mi. S of La 14, Iberia, LA
Built 2012 Load: 55.3 t ADT: 936
Port Rd
GoodOver: Rodere Canal
1.73 Mi W of La 83, Iberia, LA
Built 2012 Load: 55.3 t ADT: 836
LA1061
GoodOver: GILL CREEK
0.8 MI. N. JCT LA 1057, Tangipahoa, LA
Built 1995 Load: 55.3 t ADT: 1,509
I0049
GoodOver: MCCAIN CREEK
0.3 MI. N. OF LA 3194, Caddo, LA
Built 2016 Load: 55.4 t ADT: 2,869
Sub Regional Parkw
GoodOver: Liberty Creek
0.1 Mi S of LA 468, Vernon, LA
Built 2021 Load: 55.4 t ADT: 200
BELFIELD RD
GoodOver: BELFIELD DITCH
0.7 MI N OF PINECONE DR, Calcasieu, LA
Built 2019 Load: 55.7 t ADT: 1,580
DEEP BAYOU RD.
GoodOver: CREOLE CANAL
1.9 MI. NORTH OF LA 82, Cameron, LA
Built 2013 Load: 55.7 t ADT: 178
LA 0015
GoodOver: OLD RIVER AUX. C.S.
75 MI. NW OF BATON ROUGE, Concordia, LA
Built 1986 Load: 55.7 t ADT: 602
LA 835
GoodOver: Boeuf River
0.34 Mi W of LA 585, West Carroll, LA
Built 2023 Load: 55.7 t ADT: 200
LA 154
GoodOver: Morrow Branch
8.0 Mi. E. of LA 157, Bienville, LA
Built 2022 Load: 56.1 t ADT: 1,559
LA 154
GoodOver: Drain
8.3 Mi. E of LA 157, Bienville, LA
Built 2022 Load: 56.1 t ADT: 1,559
LA1133
GoodOver: BAYOU
1.4 MI EAST OF LA 108, Calcasieu, LA
Built 2022 Load: 56.1 t ADT: 4,636
WESLEY FRUGE ROAD
GoodOver: DRAIN
2.4 MI E OF PINE PASTURE, Calcasieu, LA
Built 2023 Load: 56.1 t ADT: 19
LA0122
GoodOver: CREEK
4.9 Mi E of LA 471, Grant, LA
Built 2023 Load: 56.1 t ADT: 683
CLIFTON ROAD
GoodOver: DRAIN
1.1 M W of La 101, Jefferson Davis, LA
Built 2004 Load: 56.1 t ADT: 110
LA0737
GoodOver: Grand Canal 02
1.45 Mi W. of La 686, St. Martin, LA
Built 2023 Load: 56.1 t ADT: 575
LA0969
GoodOver: Kimball Creek
0.9 M N of LA 66, West Feliciana, LA
Built 2023 Load: 56.1 t ADT: 394
LA 421
GoodOver: MID FK THOM CR TR
1.1 M E OF LA 967, West Feliciana, LA
Built 2023 Load: 56.1 t ADT: 343
LA0488
GoodOver: BOEUF BAYOU
4.42 M WEST OF LA 1208-3, Rapides, LA
Built 2006 Load: 56.2 t ADT: 2,343
LA 0027
GoodOver: BAYOU D'INDE
0.74 MI N OF LA 108, Calcasieu, LA
Built 2021 Load: 56.4 t ADT: 19,872
LA 126
GoodOver: Black Bayou
3.77 Mi. S. of Jct. LA 84, Caldwell, LA
Built 2021 Load: 56.4 t ADT: 1,092
LA0422
GoodOver: Richland Creek
5.4 Mi W of La 67, East Feliciana, LA
Built 2020 Load: 56.4 t ADT: 153
CAPLES RD
GoodOver: BOOKER BRANCH
1.0 MILES EAST OF LA 546, Ouachita, LA
Built 2013 Load: 56.4 t ADT: 159
LA1200
GoodOver: CREEK
0.94 Mi N of La 121, Rapides, LA
Built 2022 Load: 56.4 t ADT: 1,256
LA1200
GoodOver: BAYOU COCODRIE
1.46 Mi N of LA 121, Rapides, LA
Built 2022 Load: 56.4 t ADT: 1,256
LA1200
GoodOver: BAYOU BERTRAND
3.34 MI N OF LA 121, Rapides, LA
Built 2022 Load: 56.4 t ADT: 1,256
LA0432
GoodOver: TURKEY CREEK
2.2 MI NW OF LA 38, St. Helena, LA
Built 2021 Load: 56.4 t ADT: 532
US0051
GoodOver: Drain
1.8 Mi N. of LA 10, Tangipahoa, LA
Built 2021 Load: 56.4 t ADT: 2,199
LA0126
GoodOver: DRAIN
2.80 M E of LA 849, Caldwell, LA
Built 1985 Load: 57.2 t ADT: 1,092
Hayes Road
GoodOver: Hayes Canal
0.8 Mi West of LA 329, Iberia, LA
Built 2019 Load: 57.2 t ADT: 220
I0010
GoodOver: SUBURBAN CANAL
4.1 MI EAST OF LA 49, Jefferson, LA
Built 1967 Load: 57.2 t ADT: 137,542
I0010
GoodOver: SUBURBAN CANAL
4.1 MI EAST OF LA 49, Jefferson, LA
Built 1967 Load: 57.2 t ADT: 41,695
Gloria Switch Rd.
GoodOver: BAYOU ST. CLAIRE
1.3 Miles West of LA 354, Lafayette, LA
Built 1987 Load: 57.2 t ADT: 8,240
WYNGATE CIRCLE
GoodOver: VIRGINIA AVE. DITCH
1.3 MI EAST OF US 171, Caddo, LA
Built 1990 Load: 57.3 t ADT: 600
Showing 11,051-11,100 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 |