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
Dogwood Trail
PoorOver: COOLEY BRANCH
2.75 MI. E. OF LA. 1, Webster, LA
Built 1979 Load: 22.7 t ADT: 159
LA0969
PoorOver: BONEY CREEK
0,15 MI N of LA 66, West Feliciana, LA
Built 1983 Load: 22.7 t ADT: 385
LA0966
PoorOver: CHANEY CREEK
LA0966, West Feliciana, LA
Built 1978 Load: 22.7 t ADT: 857
LA1231-2
PoorOver: Port De Luce Creek
0.71 MI. EAST OF US 167, Winn, LA
Built 1983 Load: 22.7 t ADT: 116
LA1229
PoorOver: REDLAND CREEK RELIEF
.74 MI WEST OF LA 34, Winn, LA
Built 1974 Load: 22.7 t ADT: 39
LA0509
PoorOver: CROOKED BAYOU
.90 MI WEST OF LA 1, Red River, LA
Built 1978 Load: 23.0 t ADT: 1,975
LA0421
PoorOver: ALEXANDER CREEK W
0.6 M E of US 61, West Feliciana, LA
Built 1971 Load: 23.0 t ADT: 739
LA0156
PoorOver: SALINE BAYOU
0.92 MI. WEST OF LA 1233, Winn, LA
Built 1952 Load: 23.0 t ADT: 525
Huckaby Rd
PoorOver: HUCKABY RD., BLACK B.CA
1.45 MI W OF US 71, Caddo, LA
Built 1979 Load: 23.3 t ADT: 211
Bailey Town Rd
PoorOver: BAILEY TN RD,TR CORNEY B
6.8 MI. E. OF LA. 2, Claiborne, LA
Built 1975 Load: 23.3 t ADT: 65
Alphonse Forbes Rd
PoorOver: DRAINAGE BAYOU
1.7 MI. NE. INDIAN MD., East Baton Rouge, LA
Built 1965 Load: 23.3 t ADT: 54
LA0128
PoorOver: TURKEY CREEK
.6 MI EAST OF LA 874, Franklin, LA
Built 1970 Load: 23.3 t ADT: 1,059
I0049
PoorOver: BAYOU CLEAR DIV. CANAL
0.64 MI. NORTH OF LA 3265, Rapides, LA
Built 1990 Load: 23.3 t ADT: 24,080
LA0175
PoorOver: BAYOU PIERRE
.78 MI SOUTH OF LA 1, Caddo, LA
Built 1958 Load: 23.6 t ADT: 931
Carney Rd
PoorOver: DRAINAGE BAYOU
4.2 MI SW JCT LA 64, East Baton Rouge, LA
Built 1965 Load: 23.6 t ADT: 1,496
Lamourie Rd
PoorOver: LAMOURIE BAYOU
1.74 MILES EAST OF US 71, Rapides, LA
Built 1960 Load: 23.6 t ADT: 120
Bailey Town Rd
PoorOver: BAILEY TN RD,TR. CORNEY
6.97 MI. E. OF LA. 2, Claiborne, LA
Built 1975 Load: 23.7 t ADT: 65
Bailey Town Rd
PoorOver: BAILEY TN RD,TR CORNEY B
6.75 MI. E. OF LA. 2, Claiborne, LA
Built 1975 Load: 23.7 t ADT: 65
US0084
PoorOver: BAYOU CASTOR
2.1 MI EAST OF LA 5, De Soto, LA
Built 1951 Load: 23.7 t ADT: 6,314
LA0068
PoorOver: REDWOOD CREEK
0.04 M E of LA 68, East Feliciana, LA
Built 1979 Load: 23.7 t ADT: 1,341
CYPRESS AVE
PoorOver: BAYOU POINTE AU CHENE
3.55 MI FROM LA 55, Lafourche, LA
Built 1987 Load: 23.7 t ADT: 193
FDR 360
PoorOver: L'IVROGNE BAYOU
5.6 M. W. OF GORUM, Natchitoches, LA
Built 1978 Load: 23.7 t ADT: 30
LA0047
PoorOver: BAYOU BIENVENUE
3.0 MI SOUTH OF I-10, Orleans, LA
Built 1973 Load: 23.7 t ADT: 23,365
Tulane Ave
PoorOver: HYNSON BAYOU
TULANE AVENUE, Rapides, LA
Built 1981 Load: 23.7 t ADT: 200
I0055-S
PoorOver: NORTH PASS
North Pass, Tangipahoa, LA
Built 1960 Load: 23.7 t ADT: 4,107
Elenor Rd.
PoorOver: Coulee
1.1 Mi. S. of US 90, Acadia, LA
Built 1970 Load: 23.8 t ADT: 576
Sybil's Crossing
PoorOver: BAYOU DES GLAISES
0.03 MI. EAST OF LA 451, Avoyelles, LA
Built 1998 Load: 23.9 t ADT: 100
BLANCHARD ROAD
PoorOver: EAST BAYOU LACASSINE
3.1 MI W. OF LA 395, Jefferson Davis, LA
Built 1965 Load: 23.9 t ADT: 40
LA0157
PoorOver: CYPRESS BAYOU
3.99 MI NORTH OF LA 2, Bossier, LA
Built 1986 Load: 24.0 t ADT: 1,082
LA0529
PoorOver: CREEK
6.58 MI NORTH OF LA 160, Bossier, LA
Built 1973 Load: 24.0 t ADT: 590
Bailey Town Rd
PoorOver: BAILEY TN RD,TR CORNY B.
6.9 MI. E. OF LA. 2, Claiborne, LA
Built 1975 Load: 24.0 t ADT: 65
US0071
PoorOver: BAYOU RIGOLETTE
2.0 MI NORTH OF LA 492, Grant, LA
Built 1950 Load: 24.0 t ADT: 2,063
LA0091
PoorOver: BAYOU JONAS
1.66 MI W of LA 1120, Acadia, LA
Built 1979 Load: 24.3 t ADT: 1,617
E. LINCOLN RD
PoorOver: BLACK BAYOU
1.9 MI. E. OF LA 385, Calcasieu, LA
Built 1987 Load: 24.3 t ADT: 617
LA0385
PoorOver: S FORK BLACK BAYOU
1.0 MI. N OF LA 384, Cameron, LA
Built 1954 Load: 24.3 t ADT: 4,633
LA0174
PoorOver: BAYOU-SAN-PATRICIO-RELIE
.3 MI EAST OF US 171, Sabine, LA
Built 1977 Load: 24.3 t ADT: 1,099
JEAN ROAD
PoorOver: BIRDS CREEK
FORT POLK, Vernon, LA
Built 1987 Load: 24.3 t ADT: 336
LA0440
PoorOver: DRAIN
4.6M E TANGIPAHOA LINE, Washington, LA
Built 1993 Load: 24.3 t ADT: 1,262
Evergreen Rd
PoorOver: HOLDER CREEK
3.1 MI NW. OF LA. 159, Webster, LA
Built 1979 Load: 24.5 t ADT: 184
LA0499
PoorOver: ICE BRANCH
8.85 MI NORTH OF LA 126, Winn, LA
Built 1967 Load: 24.5 t ADT: 114
LA0098
PoorOver: CREEK
1.6 MI EAST OF LA 367, Acadia, LA
Built 1973 Load: 24.6 t ADT: 3,881
LA0585
PoorOver: DRAINAGE CANAL
1.86 MI NORTH OF US 65, East Carroll, LA
Built 1977 Load: 24.6 t ADT: 372
A&D ABSHIRE RD.
PoorOver: THORNWELL DRAINAGE CANAL
0.2 MI W of LYONS RD, Jefferson Davis, LA
Built 1972 Load: 24.6 t ADT: 30
LA0509
PoorOver: WATSON BAYOU
1.64 MI WEST OF LA 1, Red River, LA
Built 1978 Load: 24.6 t ADT: 1,975
LA0083
PoorOver: BAYOU CHOUPIQUE
1.28 MI South of LA 182, St. Mary, LA
Built 1978 Load: 24.6 t ADT: 10,148
LA0001
PoorOver: MO PACIFIC RR
0.25 MI N OF LA 987-2, West Baton Rouge, LA
Built 1952 Load: 24.6 t ADT: 25,347
LA1110
PoorOver: Cole Gully
0.75 Mi N of LA 98, Acadia, LA
Built 1982 Load: 24.9 t ADT: 303
Jackson Rd
PoorOver: DUFF BAYOU
1.1 MI.SOUTHWEST OF, East Baton Rouge, LA
Built 1970 Load: 25.3 t ADT: 1,379
LA0720
PoorOver: Indian Bayou
2.2 MI WEST OF LA 719, Lafayette, LA
Built 1972 Load: 25.3 t ADT: 1,391
N GALVEZ ST
PoorOver: RR YARD @ GALVEZ ST
0.06 MI E OF ALMONASTE A, Orleans, LA
Built 1950 Load: 25.3 t
Showing 11,951-12,000 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 |