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
Hubbs Rd
Structurally DeficientOver: HUB BAYOU
0.1 MI. S. of LA 64, East Baton Rouge, LA
Built 1968 Load: 18.5 t ADT: 1,386
NEW COMER RD.
Structurally DeficientOver: GULLY
1.2 MI E of LA 383, Jefferson Davis, LA
Built 1971 Load: 18.5 t ADT: 40
Lefort Bypass
Structurally DeficientOver: CUT OFF BAYOU
0136 LOG MI FROM INT, Lafourche, LA
Built 1971 Load: 18.5 t ADT: 2,222
FH 59
Structurally DeficientOver: STEEP CREEK
NO DATA ENTERED, Natchitoches, LA
Built 1967 Load: 18.8 t ADT: 80
N GRAND AVE
Structurally DeficientOver: BUXTON CREEK
0.4 MI NORTH OF LA 12, Calcasieu, LA
Built 1997 Load: 19.1 t ADT: 273
LA0506
Structurally DeficientOver: CASTOR RELIEF
6.5 MI WEST OF US 165, Caldwell, LA
Built 1931 Load: 19.1 t ADT: 306
FDR 911
Structurally DeficientOver: MIDDLE FORK DARBONE
2.1 MI SOUTH OF LA. ALT 2, Claiborne, LA
Built 1986 Load: 19.1 t ADT: 30
Black Rd
Structurally DeficientOver: DRAINAGE BAYOU
2.3 MI E LA 64,LA67 JCT, East Baton Rouge, LA
Built 1988 Load: 19.1 t ADT: 4
FDR 145
Structurally DeficientOver: HURRICANE
NO DATA ENTERED, Grant, LA
Built 1970 Load: 19.1 t ADT: 13
Bonne Idee RD
Structurally DeficientOver: BAYOU BONNE IDEE
0.3 Mi. E. of US 165, Morehouse, LA
Built 1979 Load: 19.1 t ADT: 200
LA0001
Structurally DeficientOver: CANE RIVER
.05 MI. N OF S INT LA495, Natchitoches, LA
Built 1948 Load: 19.1 t ADT: 996
De Saix BLVD
Structurally DeficientOver: BAYOU SAINT JOHN
0.0MI.E.OF WISNER BL, Orleans, LA
Built 1941 Load: 19.1 t
LA0121
Structurally DeficientOver: CALCASIEU RIVER TRIBUTAR
0.52 MI. SW OF LA 461, Rapides, LA
Built 1973 Load: 19.1 t ADT: 1,932
LA3008
Structurally DeficientOver: CANEY CREEK
1.1 MI SOUTH OF LA 160, Webster, LA
Built 1971 Load: 19.1 t ADT: 145
Ridge Rd
Structurally DeficientOver: DRY CREEK
2.4 MI. EAST OF LA 4, Bienville, LA
Built 1976 Load: 19.3 t ADT: 100
US0080
Structurally DeficientOver: ALLIGATOR BAYOU
1.2 MI E OF LA782-2, Bossier, LA
Built 1936 Load: 19.4 t ADT: 2,376
S Tiger Bend Rd
Structurally DeficientOver: DRAINAGE BAYOU
3.4 Mi E of LA 73, East Baton Rouge, LA
Built 1965 Load: 19.4 t ADT: 5,630
E Achord Rd
Structurally DeficientOver: DRAINAGE BAYOU
4 MI.NE LA 42,I-10 I, East Baton Rouge, LA
Built 1970 Load: 19.4 t ADT: 1,732
E. State St
Structurally DeficientOver: CORPORATION CANAL
BATON ROUGE, East Baton Rouge, LA
Built 1960 Load: 19.4 t ADT: 1,500
Bell Road
Structurally DeficientOver: MILL BRANCH
0.75 M. N. OF JCT LA 123, Grant, LA
Built 1982 Load: 19.4 t ADT: 15
BABINEAUX ROAD
Structurally DeficientOver: CREEK
0.6 MI E of PanchovilleRd, Jefferson Davis, LA
Built 1978 Load: 19.4 t ADT: 30
LA0121
Structurally DeficientOver: CALCASIEU RIVER
0.76 MI. SW OF LA 461, Rapides, LA
Built 1973 Load: 19.8 t ADT: 1,932
LA0004
Structurally DeficientOver: DRAIN
9.4 MI EAST OF LA 154, Bienville, LA
Built 1972 Load: 20.0 t ADT: 1,558
Cousins Rd.
Structurally DeficientOver: DES CANNES BAYOU
2 Miles S. of La 1161, Evangeline, LA
Built 2010 Load: 20.0 t ADT: 146
LA0366
Structurally DeficientOver: SANDY CREEK
.53 MI NORTH OF LA 8, Grant, LA
Built 1955 Load: 20.0 t ADT: 368
LA0485
Structurally DeficientOver: TAPALCAT BAYOU
6.70 MI N OF JCT LA 1222, Natchitoches, LA
Built 1956 Load: 20.0 t ADT: 25
Jacobs Ave.
Structurally DeficientOver: COULEE
0.5 Mi. N. of US 90, Acadia, LA
Built 1980 Load: 20.1 t ADT: 336
LA0004
Structurally DeficientOver: SALINE BAYOU
1.2 MI EAST OF LA 9, Bienville, LA
Built 1982 Load: 20.1 t ADT: 504
Gurney Rd
Structurally DeficientOver: DRAINAGE CANAL
0.1 Mi E of LA 410, East Baton Rouge, LA
Built 1966 Load: 20.1 t ADT: 4,025
LA0301
Structurally DeficientOver: PRIEST CANAL
.2 MI SOUTH OF LA 301, Jefferson, LA
Built 1979 Load: 20.1 t ADT: 317
TOUCHET ROAD
Structurally DeficientOver: GRAND MARAIS BAYOU
1.60 MI S of US 90, Jefferson Davis, LA
Built 1974 Load: 20.1 t ADT: 30
LA0155
Structurally DeficientOver: DUKEDALL CREEK
1.3 MI NORTH OF LA 508, Bienville, LA
Built 1979 Load: 20.4 t ADT: 713
LA0527
Structurally DeficientOver: FLAT RIVER
.05 MI E. OF US 71, Bossier, LA
Built 1981 Load: 20.4 t ADT: 1,951
LA0027
Structurally DeficientOver: CAL SHIP CHANNEL
8.9 MI E of LA 82, Cameron, LA
Built 1965 Load: 20.4 t ADT: 552
LA0027
Structurally DeficientOver: CAL.SHIP CHA/CAM.FERRY 2
9.2 MI E of LA 82, Cameron, LA
Built 1965 Load: 20.4 t ADT: 543
LA0001
Structurally DeficientOver: CO CANAL LOCKPORT
.1 MI NORTH OF LA 655, Lafourche, LA
Built 1959 Load: 20.4 t ADT: 9,831
LA1204
Structurally DeficientOver: FLAGON BAYOU
1.29 MI. E OF LA3225, Rapides, LA
Built 1973 Load: 20.4 t ADT: 2,440
LA0087
Structurally DeficientOver: CREEK
3.87 MI SOUTH OF LA 323, St. Mary, LA
Built 1952 Load: 20.4 t ADT: 9
N. Hoover Rd
Structurally DeficientOver: CREEK
2.3M S OF LA 3158 EXIT, Tangipahoa, LA
Built 1993 Load: 20.4 t ADT: 4,707
LA0155
Structurally DeficientOver: BRUSH CREEK
3.5 MI NORTH OF LA 4, Bienville, LA
Built 1974 Load: 20.7 t ADT: 972
LA0793
Structurally DeficientOver: SLOUGH
.57 MI WEST OF LA 794, Bienville, LA
Built 1978 Load: 20.7 t ADT: 125
LA3094
Structurally DeficientOver: CROSS BAYOU
1.9 Miles North of US80, Caddo, LA
Built 1960 Load: 20.7 t ADT: 14,003
LA3094
Structurally DeficientOver: CROSS BAYOU
0.1 MI S OF LA 173, Caddo, LA
Built 1960 Load: 20.7 t ADT: 16,911
Frenchtown Rd
Structurally DeficientOver: BEAVER BAYOU
0.4 Mi. E of Central THWY, East Baton Rouge, LA
Built 1963 Load: 20.7 t ADT: 4,745
FDR 421
Structurally DeficientOver: DRAKES CREEK
7 MI. ESE OF PICKENING, Vernon, LA
Built 1984 Load: 20.7 t ADT: 60
LA0063
Structurally DeficientOver: TRIB OF BLUFF CK
LA0063, East Feliciana, LA
Built 1957 Load: 20.9 t ADT: 1,584
LA0320
Structurally DeficientOver: TECHE BAYOU/OLIVIER
0.2 Mi. N. of La 182, Iberia, LA
Built 1963 Load: 20.9 t ADT: 3,241
LA0002
Structurally DeficientOver: JEEMS BAYOU
2.26 MI WEST OF LA 1, Caddo, LA
Built 1973 Load: 21.1 t ADT: 1,464
Catalina Ave
Structurally DeficientOver: ENGRS. DEPOT CANAL
0.10M E OF N.SHERWOOD FR., East Baton Rouge, LA
Built 1984 Load: 21.1 t ADT: 5,443
Brown Creek Rd
Structurally DeficientOver: BROWN CREEK
1.79 MI. NORTH OF LA 28, Rapides, LA
Built 1993 Load: 21.1 t ADT: 50
Showing 12,551-12,600 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 |