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
LA0019
GoodOver: SLOUGH
1.2 M S of LA 19&LA 64, East Baton Rouge, LA
Built 1988 Load: 32.4 t ADT: 17,529
LA0037
GoodOver: DRAGON CREEK
1.4 M SW of LA 64, East Baton Rouge, LA
Built 1958 Load: 32.4 t ADT: 15,157
LA0408
GoodOver: STREAM NO NAME
1.9 M W of LA 37, East Baton Rouge, LA
Built 1949 Load: 32.4 t ADT: 6,747
Burbank Dr.
GoodOver: Bayou Fountain
4.5 M E of LA 42&LA 327-S, East Baton Rouge, LA
Built 1976 Load: 32.4 t ADT: 26,100
Highland road
GoodOver: STREAM
3.3 M S of US 61&LA 3246, East Baton Rouge, LA
Built 1949 Load: 32.4 t ADT: 18,800
I0010
GoodOver: DRAIN
.8 MI. EAST OF BLUEBONNET, East Baton Rouge, LA
Built 2006 Load: 32.4 t ADT: 15,061
I0010
GoodOver: DRAIN
.6 MI W. OF SIEGEN LANE, East Baton Rouge, LA
Built 2006 Load: 32.4 t ADT: 14,120
I0010 SERVICE RD
GoodOver: DRAIN
0.9 M SE of I-10&LA 3246, East Baton Rouge, LA
Built 1974 Load: 32.4 t ADT: 7,856
LA0409
GoodOver: DRAIN NO NAME
0.5 M N of LA 37&LA 409, East Baton Rouge, LA
Built 1955 Load: 32.4 t ADT: 3,092
Tiger Bend Rd
GoodOver: JACKS BAYOU
3.4 MI. SE JCT I-12/US 61, East Baton Rouge, LA
Built 2001 Load: 32.4 t ADT: 17,420
Corporate Blvd
GoodOver: WARDS CREEK
.20 MI. E. COLLEGE DR., East Baton Rouge, LA
Built 1985 Load: 32.4 t ADT: 23,372
Tara Blvd
GoodOver: N. BRANCH WARDS CREEK
0.1 M N OF LA 426, East Baton Rouge, LA
Built 1968 Load: 32.4 t ADT: 13,034
Oklahoma St
GoodOver: CORPORATION CANAL
80' E OF NICHOLSON DR, East Baton Rouge, LA
Built 1971 Load: 32.4 t ADT: 6,342
Commercial Ave
GoodOver: HONEYCUT BAYOU
0.02M N. I-12@ONEAL LANE, East Baton Rouge, LA
Built 1991 Load: 32.4 t ADT: 200
Gore Rd
GoodOver: Monte Sano Bayou
1.2 M E OF LA 19, East Baton Rouge, LA
Built 2003 Load: 32.4 t ADT: 100
FOSTER RD
GoodOver: BAYOU
0.1 MI N of LA 580, East Carroll, LA
Built 2009 Load: 32.4 t ADT: 150
BULLRUN RD
GoodOver: DRAIN TO JONES BAYOU
2.0 MI N of LA 580, East Carroll, LA
Built 1992 Load: 32.4 t ADT: 333
Devalcourt Rd
GoodOver: CREEK
1.5 M SW of LA 422, East Feliciana, LA
Built 2010 Load: 32.4 t ADT: 74
LA0010
GoodOver: STREAM
0.7 M W of LA 10&LA 19, East Feliciana, LA
Built 1951 Load: 32.4 t ADT: 5,830
LA0960
GoodOver: STREAM NO NAME
1.9 M NE of LA 63&LA 960, East Feliciana, LA
Built 1967 Load: 32.4 t ADT: 653
LA0095
GoodOver: DOZA BAYOU
0.52 Mi S of La 29, Evangeline, LA
Built 2013 Load: 32.4 t ADT: 2,569
N. 1st St.
GoodOver: COULEE
0.10 Mi S of La 1163, Evangeline, LA
Built 2010 Load: 32.4 t ADT: 138
US0190
GoodOver: DRAINAGE CANAL
.3 Mi East of LA 3068, Evangeline, LA
Built 1990 Load: 32.4 t ADT: 6,500
US0190
GoodOver: US 190 DRAINAGE CANAL
6.18 MI EAST OF LA 1157-2, Evangeline, LA
Built 1990 Load: 32.4 t ADT: 6,500
LA0010
GoodOver: BAYOU DES CANNES
3.6 MI EAST OF LA 376, Evangeline, LA
Built 1956 Load: 32.4 t ADT: 6,214
LA0010
GoodOver: DRAIN
1.2 Mi East of LA 748, Evangeline, LA
Built 1961 Load: 32.4 t ADT: 5,978
LA0104
GoodOver: DRAIN
0.2 miles East of LA 3277, Evangeline, LA
Built 1957 Load: 32.4 t ADT: 2,203
LA0104
GoodOver: DRAIN
5.5 MI EAST OF LA 3277, Evangeline, LA
Built 1957 Load: 32.4 t ADT: 2,203
LA0029
GoodOver: Bayou Choupique
4.9 Miles NE of LA 13, Evangeline, LA
Built 1951 Load: 32.4 t ADT: 1,489
LA0029
GoodOver: DRAIN
0.1 MI N OF LA 1162, Evangeline, LA
Built 1951 Load: 32.4 t ADT: 1,075
LA0106
GoodOver: DRAIN
2.31 MI East oF LA 10, Evangeline, LA
Built 1960 Load: 32.4 t ADT: 1,247
LA0106
GoodOver: DRAIN
4.02 MI WEST OF LA 10, Evangeline, LA
Built 1960 Load: 32.4 t ADT: 1,247
LA0363
GoodOver: BAYOU PETITE PASSE
.5 MI EAST OF LA 363, Evangeline, LA
Built 1952 Load: 32.4 t ADT: 449
LA0095
GoodOver: DRAIN
1.1 MI EAST OF LA 104, Evangeline, LA
Built 1964 Load: 32.4 t ADT: 1,107
LA0095
GoodOver: DRAIN
4.05 MI EAST OF LA 104, Evangeline, LA
Built 1964 Load: 32.4 t ADT: 1,107
LA1168
GoodOver: DRAIN
2.9 MI EAST OF LA 103, Evangeline, LA
Built 1962 Load: 32.4 t ADT: 409
LA1163
GoodOver: BAYOU
0.52 MI NORTH OF LA 29, Evangeline, LA
Built 1975 Load: 32.4 t ADT: 21
LA0757
GoodOver: DRAIN
1.02 MI EAST OF LA 3277, Evangeline, LA
Built 1965 Load: 32.4 t ADT: 3,491
Leman Rd
GoodOver: BEAVER CREEK
0.6 MI S of LA 106, Evangeline, LA
Built 2004 Load: 32.4 t ADT: 90
Cypress Creek Rd
GoodOver: CYPRESS CREEK
3.0 Mi N of La 10, Evangeline, LA
Built 1987 Load: 32.4 t ADT: 145
Raspberry Rd
GoodOver: MOUND BAYOU
LOGMI FR 303 TO ODE, Franklin, LA
Built 2012 Load: 32.4 t ADT: 125
LA0577
GoodOver: Ash Slough
1.1 Mi E of LA 425, Franklin, LA
Built 2021 Load: 32.4 t ADT: 1,341
Longview Rd
GoodOver: CREEK
LOGMI 1.88 FR 655 TO 0DE, Franklin, LA
Built 2010 Load: 32.4 t ADT: 300
Loflin Rd
GoodOver: CREEK
LOGMI 3.59 FR ODE TO 248, Franklin, LA
Built 2012 Load: 32.4 t ADT: 350
LA0015
GoodOver: CREEK
0.80 M S of LA 1242, Franklin, LA
Built 1995 Load: 32.4 t ADT: 4,592
LA0017
GoodOver: CREEK
5.02 MI NORTH OF LA 4, Franklin, LA
Built 1952 Load: 32.4 t ADT: 4,194
LA0869
GoodOver: CREEK
.36 MI NORTH OF LA 618, Franklin, LA
Built 1965 Load: 32.4 t ADT: 455
Mauld Rd
GoodOver: CREEK
LOG MI 5.94 FR 557 TO 437, Franklin, LA
Built 2002 Load: 32.4 t ADT: 100
Campbell Lane
GoodOver: CAMPBELL ROAD CREEK
LOGMI 0.59 FR 316 TO 318, Franklin, LA
Built 2005 Load: 32.4 t ADT: 25
Parish Line Rd.
GoodOver: TURKEY CREEK
2.79 mi. W of LA 17, Franklin, LA
Built 1994 Load: 32.4 t ADT: 70
Showing 8,051-8,100 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 |