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
George White Rd
GoodOver: BLOOD RIVER
3.0 MI SOUTHEAST 441 EXIT, Livingston, LA
Built 1989 Load: 36.6 t ADT: 650
US0425
GoodOver: BAYOU BARTHOLOMEW
2.2 MI. SOUTH OF LA 142, Morehouse, LA
Built 2012 Load: 36.6 t ADT: 5,676
LA0120
GoodOver: DUPONT BAYOU
5.5 MILES EAST OF LA 487, Natchitoches, LA
Built 2009 Load: 36.6 t ADT: 1,946
FANNIN RD
GoodOver: LAPINE BAYOU
1.7 MILE EAST HWY 557, Ouachita, LA
Built 1985 Load: 36.6 t ADT: 83
MCCORMICK RD
GoodOver: DRAIN INTO CHENIERE CREE
1 MI S HWY 80, Ouachita, LA
Built 1984 Load: 36.6 t ADT: 275
SUSEK DR
GoodOver: MARIA BAYOU TRIB. #3
1.0 MI. EAST OF LA 3144, Rapides, LA
Built 2011 Load: 36.6 t ADT: 4,200
Bethel Rd
GoodOver: BRIDGE OVER BEAVER CREEK
0.6 MI. S. OF LA 38, St. Helena, LA
Built 1985 Load: 36.6 t ADT: 200
Pipkin Rd
GoodOver: DARLING CREEK
3.9 MI W JCT LA 43 & LA38, St. Helena, LA
Built 1985 Load: 36.6 t ADT: 130
Lookout Rd
GoodOver: DARLING CREEK
.62 MI W. OF LA 43, St. Helena, LA
Built 1986 Load: 36.6 t ADT: 120
Bob Levy Rd
GoodOver: TALISHEEK CREEK BRIDGE
LA 435-N ON BOB LEAVY RD, St. Tammany, LA
Built 1985 Load: 36.6 t ADT: 60
LA0092
GoodOver: BAYOU QUE DE TORTUE
2.68 MI. E. OF LA 35, Vermilion, LA
Built 2012 Load: 36.6 t ADT: 352
Ivy Rd
GoodOver: SLEDGE CANAL
0.3 Mi N of La 708, Vermilion, LA
Built 1986 Load: 36.6 t ADT: 100
Zwan Rd
GoodOver: COULEE
0.1 Mi N of La 14, Vermilion, LA
Built 1985 Load: 36.6 t ADT: 58
LA0028
GoodOver: WEST FORK CREEK
3 MI WEST OF JCT LA 121, Vernon, LA
Built 2003 Load: 36.6 t ADT: 6,952
Daniels Rd
GoodOver: DANIEL BRANCH
0.60 M W of LA 25, Washington, LA
Built 1984 Load: 36.6 t ADT: 312
Old Columbia Rd
GoodOver: PUSHEPATAPA CREEK
3.2 MI. EAST OF HWY 436, Washington, LA
Built 1984 Load: 36.6 t ADT: 511
T. C. Brumfield Rd
GoodOver: LAWRENCE CREEK
2.0 MILES N. OF HWY 436, Washington, LA
Built 1995 Load: 36.6 t ADT: 328
Monroe Cr. Rd
GoodOver: BRIDGE OVER CREEK
06.48 MI WEST OF HWY 21, Washington, LA
Built 1984 Load: 36.6 t ADT: 322
LA0159
GoodOver: BLACK BAYOU
16.95 MI. N. OF US 79 80, Webster, LA
Built 2005 Load: 36.6 t ADT: 562
US0084
GoodOver: LAS RR
3.8 MI EAST OF LA 1228, Winn, LA
Built 1959 Load: 36.6 t ADT: 5,495
Cherokee Rd.
GoodOver: Coulee
0.2 Mi N. of La 1111, Acadia, LA
Built 1997 Load: 36.9 t ADT: 64
DEAN DRIVE
GoodOver: CHOUPIQUE BAYOU TRIB.
2.77 MI W OF LA 27, Calcasieu, LA
Built 2021 Load: 36.9 t ADT: 100
LA0521
GoodOver: SAND CREEK
1.42 MI. NORTH OF LA 2, Claiborne, LA
Built 2012 Load: 36.9 t ADT: 409
LA0534
GoodOver: Buck Cr
1.75 Mi. N. of LA 2, Claiborne, LA
Built 2020 Load: 36.9 t ADT: 135
Reddix Rd
GoodOver: LITTLE WALLACE BAYOU
1.44 MI. SOUTH OF NORTH J, De Soto, LA
Built 2011 Load: 36.9 t ADT: 170
France Rd.
GoodOver: DURALDE BAYOU
0.65 Mi N of LA 374, Evangeline, LA
Built 1992 Load: 36.9 t ADT: 105
Spillway Rd.
GoodOver: SLOUGH
0.11 Mi S of La 106, Evangeline, LA
Built 1995 Load: 36.9 t ADT: 93
Grand Prairie Rd
GoodOver: Armenco Branch Canal
0.6 MI N. of La 675, Iberia, LA
Built 1991 Load: 36.9 t ADT: 229
CORMIER VILLAGE RD
GoodOver: GULLY
1.4 M W of LA 99, Jefferson Davis, LA
Built 1999 Load: 36.9 t ADT: 250
Bayou Tortue Rd.
GoodOver: COULEE FORTUNE
5.0 MI. WEST OF LA 96, Lafayette, LA
Built 2013 Load: 36.9 t ADT: 1,310
Marteau Rd.
GoodOver: LA SALLE COULEE
1.0 M SW of LA 92, Lafayette, LA
Built 1991 Load: 36.9 t ADT: 320
WEST KENTUCKY AVE
GoodOver: CR
0.6 MI W of US 167, Lincoln, LA
Built 2008 Load: 36.9 t ADT: 500
STOCKLAND RD
GoodOver: WALNUT BAYOU
0.08 MI S of US 80, Madison, LA
Built 2006 Load: 36.9 t ADT: 50
LA0491
GoodOver: BAYOU NID AIGLE
5.3 MI. NORTH OF LA 495, Natchitoches, LA
Built 2010 Load: 36.9 t ADT: 237
Cox Lane
GoodOver: BAYOU SANTABARB
0.43 MILE SOUTH OF LA 478, Natchitoches, LA
Built 2001 Load: 36.9 t ADT: 52
US0080
GoodOver: STEEP BAYOU
2.4 MI E OF LA 15, Ouachita, LA
Built 2017 Load: 36.9 t ADT: 13,971
LEE ANDING RD
GoodOver: CUT OFF BAYOU
5.81 MI E of LA 577, Ouachita, LA
Built 1993 Load: 36.9 t ADT: 169
Texada Rd
GoodOver: BAYOU RAPIDES
0.01 MI N OF BELGARD BEND, Rapides, LA
Built 2010 Load: 36.9 t ADT: 400
Parish Rd 410
GoodOver: MILL CREEK
3 MI N OF LA 507, Red River, LA
Built 1997 Load: 36.9 t ADT: 235
CAMPAGNA DR
GoodOver: 20 ARPENT CANAL
0.5 MI N OF LA 39, St. Bernard, LA
Built 2015 Load: 36.9 t ADT: 610
Travis Rd
GoodOver: TAYLOR CREEK
1.0 MILES WEST OF ETHEL L, St. Helena, LA
Built 2010 Load: 36.9 t ADT: 125
Rayne Rd
GoodOver: BRANCH OF B. COURTABLEAU
1.67 Mi SE of LA 103, St. Landry, LA
Built 1995 Load: 36.9 t ADT: 225
Carson Rd
GoodOver: DRAINAGE BAYOU
0.74 Mi W of LA 361, St. Landry, LA
Built 2000 Load: 36.9 t ADT: 120
Hidden Oaks Dr
GoodOver: CREEK
0.5 MILES NORTH OF GAUSE, St. Tammany, LA
Built 2012 Load: 36.9 t ADT: 100
Bennett Rd
GoodOver: NATALBANY CREEK
1.7 MILES SOUTHEAST OF LA, Tangipahoa, LA
Built 2010 Load: 36.9 t ADT: 320
Z. McDaniel Rd
GoodOver: REEDY BRANCH
5.0 MILES NORTHEAST OF JC, Tangipahoa, LA
Built 2010 Load: 36.9 t ADT: 300
Sisters Rd
GoodOver: Selsers Creek
1.5 Mi N. of LA 22, Tangipahoa, LA
Built 2022 Load: 36.9 t ADT: 3,345
LA1057
GoodOver: DRAIN
LA. 1057, Tangipahoa, LA
Built 1965 Load: 36.9 t ADT: 1,695
N. Hayes Rd
GoodOver: IRVING BRANCH
2.4 MI N OF JCT 38 & 1054, Tangipahoa, LA
Built 2006 Load: 36.9 t ADT: 83
US0167
GoodOver: CREEK
1.0 MI. S OF LA 9, Union, LA
Built 2012 Load: 36.9 t ADT: 422
Showing 9,301-9,350 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 |