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
I0049
GoodOver: UNKNOWN CREEK
0.93 M. N. OF LA 170, Caddo, LA
Built 2013 Load: 57.7 t ADT: 53,023
I0049
GoodOver: UNKNOWN CREEK
0.93 M. N. OF LA 170, Caddo, LA
Built 2013 Load: 57.7 t ADT: 6,846
LA0478
GoodOver: B. DEMUSE EAST TRIBUTARY
1.78 MI. WEST OF LA 117, Natchitoches, LA
Built 1996 Load: 57.7 t ADT: 116
I0049
GoodOver: UNKNOWN POND
1.21 M. N. OF LA 170, Caddo, LA
Built 2013 Load: 58.0 t ADT: 53,023
I0049
GoodOver: UNKNOWN POND
1.21 M. N. OF LA 170, Caddo, LA
Built 2013 Load: 58.0 t ADT: 6,846
Flournoy Lucas Rd
GoodOver: TRIB. TO BRUSHY BAYOU
1.1 MILES WEST OF I-49, Caddo, LA
Built 2008 Load: 58.0 t ADT: 5,718
Bob Pettit BLVD
GoodOver: Bayou Fountain
0.02 MI. W. of LA 30, East Baton Rouge, LA
Built 2022 Load: 58.0 t ADT: 10,089
LA0107
GoodOver: Rouge Bayou
5.25 Mi. E. of US 71, St. Landry, LA
Built 2020 Load: 58.0 t ADT: 1,214
LA1179
GoodOver: BAYOU JACK
0.02 M W OF S JCT LA 107, Avoyelles, LA
Built 1986 Load: 58.1 t ADT: 332
LA0858
GoodOver: HURRICANE SLOUGH
0.70 M E of LA 859, Franklin, LA
Built 1997 Load: 58.1 t ADT: 196
LA0127
GoodOver: CREEK
2.2 MI NORTH OF LA 460, LaSalle, LA
Built 1995 Load: 58.1 t ADT: 2,211
W. ESPLANADE
GoodOver: DUNCAN CANAL
0.4 Mi W of LA 49, Jefferson, LA
Built 2020 Load: 58.6 t ADT: 28,547
Timberstone Dr
GoodOver: Henderson Bayou
.7 MI. S. of LA 933, Ascension, LA
Built 2009 Load: 59.0 t ADT: 120
John Smith Rd
GoodOver: Coulee
.25 Mi. SW of LA 92, Acadia, LA
Built 2014 Load: 59.3 t ADT: 32
LA0037
GoodOver: WHITTON CREEK
7.76 MILES SOUTH OF LA.63, East Baton Rouge, LA
Built 2015 Load: 59.3 t ADT: 2,810
LA1065
GoodOver: PONCHATOULA CREEK
0.91 OF A MILE NORTH OF U, Tangipahoa, LA
Built 2015 Load: 59.3 t ADT: 5,843
JOHNSON KORAN ROAD
GoodOver: FOXSKIN BAYOU
2.2 MI N OF LA 527, Bossier, LA
Built 2021 Load: 59.9 t ADT: 1,153
LA0091
GoodOver: CREEK
2.5 MI. S. OF LA 14, Vermilion, LA
Built 2016 Load: 60.3 t ADT: 388
NATURE CENTER DR.
GoodOver: LAGOON
1.2 MI NE OF CHEF MENTEUR, Orleans, LA
Built 2018 Load: 60.6 t ADT: 500
LA0024
GoodOver: BAYOU TERREBONNE
0.01 M W OF LA 659, Terrebonne, LA
Built 1990 Load: 60.6 t ADT: 258
Jones Creek Rd
GoodOver: CREEK
.08 MILES WEST OF S. HARR, East Baton Rouge, LA
Built 2011 Load: 60.8 t ADT: 19,939
Jones Creek Rd
GoodOver: CREEK
.08 MILES WEST OF S. HARR, East Baton Rouge, LA
Built 2011 Load: 60.8 t ADT: 19,939
Charles Holden Rd
GoodOver: HOG BRANCH
4.5 MILES NE OF LA 63 EXI, Livingston, LA
Built 2007 Load: 60.8 t ADT: 300
LA1126
GoodOver: CHENE BAYOU
4.2 MI. E. OF LA 382, Jefferson Davis, LA
Built 2015 Load: 61.2 t ADT: 507
LA1065
GoodOver: CREEK
0.60 MILES N OF US 190, Tangipahoa, LA
Built 2016 Load: 61.2 t ADT: 5,843
LA0038
GoodOver: DRAIN
0.25 MILES WEST OF LA.450, Washington, LA
Built 2016 Load: 61.2 t ADT: 1,706
Gobert Rd
GoodOver: COULEE
1.0 M East of La 95, Acadia, LA
Built 1993 Load: 62.2 t ADT: 24
JOHN EHRET SCHOOL
GoodOver: PATRIOT CANAL
0.5 MI E OF LA 45, Jefferson, LA
Built 2015 Load: 62.2 t ADT: 2,400
JOHN EHRET SCHOOL
GoodOver: PATRIOT CANAL
0.4 MI E OF LA 45, Jefferson, LA
Built 2015 Load: 62.2 t ADT: 2,400
LA0091
GoodOver: MAREE MICHEL CANAL
.56 MI N of LA 332, Vermilion, LA
Built 2015 Load: 62.5 t ADT: 388
LA0024
GoodOver: BAYOU TERREBONNE
0.01 M W OF LA 659, Terrebonne, LA
Built 1990 Load: 62.9 t ADT: 258
LA0118
GoodOver: UNNAMED CREEK
2.35 MI. EAST OF LA 117, Natchitoches, LA
Built 1998 Load: 63.5 t ADT: 164
LA0104
GoodOver: Bayou Des Cannes
1.7 Mi W of La 29, Evangeline, LA
Built 2020 Load: 63.8 t ADT: 2,203
GANSVILLE RD
GoodOver: DRAIN TO GARRETT CREEK
0.85 MI SW of LA 4, Jackson, LA
Built 2001 Load: 63.8 t ADT: 1,450
Greens Creek Rd
GoodOver: CREEK
1.81M SOUTH OF LA 772, LaSalle, LA
Built 1991 Load: 63.8 t ADT: 100
LA0024
GoodOver: BAYOU TERREBONNE
2.95 NORTH OF LA 660, Terrebonne, LA
Built 1990 Load: 64.2 t ADT: 258
LA6119
GoodOver: METAIRIE RELIEF CANAL
.68 MI NORTH OF I-10, Jefferson, LA
Built 2000 Load: 64.4 t ADT: 13,208
LA0126
GoodOver: DRAINAGE DITCH
0.67 MILE EAST OF LA 127, Winn, LA
Built 1985 Load: 65.4 t ADT: 473
Cypress Street
GoodOver: Poydras Bayou
0.01 mi W of LA 413, West Baton Rouge, LA
Built 2017 Load: 66.1 t ADT: 320
US0090
GoodOver: PATTERSON CANAL
2.6 MI EAST OF LA 182, St. Mary, LA
Built 1964 Load: 66.4 t ADT: 22,893
CORBELLO RD
GoodOver: COON GULLY
0.79 MI N OF LA 3059, Calcasieu, LA
Built 2018 Load: 66.7 t ADT: 464
Hog Walla Rd
GoodOver: Bayou Coulee Trib
1.4 Mi. E. of Jct LA 138, Morehouse, LA
Built 2022 Load: 66.7 t ADT: 200
Brangus Rd
GoodOver: COULEE
1.25 Mi NE of La 95, Evangeline, LA
Built 2001 Load: 68.4 t ADT: 46
St Maurice Lane
GoodOver: ST MAURICE DITCH
1.3 MI. EAST OF LA 1224, Natchitoches, LA
Built 1993 Load: 69.0 t ADT: 550
Calhoun Rd
GoodOver: CREEK
WALKER FERRY ROAD, Franklin, LA
Built 1990 Load: 70.6 t ADT: 120
Louisa St
GoodOver: Florida Ave Canal
0.0 Mi. N. of Florida Ave, Orleans, LA
Built 2020 Load: 71.0 t ADT: 250
EAST NORTH STREET
GoodOver: DRAIN
1.0 MI EAST OF US 171, Beauregard, LA
Built 2020 Load: 71.3 t ADT: 1,520
I0010
GoodOver: DRAIN
4.2 M SE of I-10&LA 3246, East Baton Rouge, LA
Built 1975 Load: 71.3 t ADT: 137,847
LA1054
GoodOver: DRAIN
1.7 MI. N/E LA 440 INTER., Tangipahoa, LA
Built 1995 Load: 71.3 t ADT: 1,318
I0049
GoodOver: MCCAIN CREEK
1.88 MI. S. OF LA 1, Caddo, LA
Built 2016 Load: 72.6 t ADT: 51,551
Showing 11,101-11,150 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 |