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
I0010
UnknownOver: RAMPS
I0010, West Baton Rouge, LA
ADT: 4,920
I0010
UnknownOver: FRONTAGE ROAD
I0010, West Baton Rouge, LA
ADT: 4,920
Jefferson Paige Rd
FairOver: TRIB. TO PAGE BAYOU
4.9 MI WEST OF U.S., Caddo, LA
Built 1976 ADT: 39
SPEARS VILLAGE RD
FairOver: DRAINAGE STAGESTAND CR
PEASON RIDGE TRAIN AREA, Natchitoches, LA
Built 2005 ADT: 40
L08
FairOver: WEST FORK MASTERS CREEK
NO DATA ENTERED, Rapides, LA
Built 2003 ADT: 50
422 FDR
FairOver: BUNDICK CREEK
3.5 M. ESE. OF PICKE, Vernon, LA
Built 1975 ADT: 250
422 FDR
FairOver: BUNDICK CREEK
3.5 MI.E.S.E.OF PICKERING, Vernon, LA
Built 1983 ADT: 250
Daugereaux Rd.
FairOver: GRAND LOUIS BAYOU
1.85 Mi N of La 104, Evangeline, LA
Built 2001 Load: 0.3 t ADT: 30
Linda Rd
FairOver: GRAND LOUIS BAYOU
0.28 Mi S of La 1160, Evangeline, LA
Built 2001 Load: 1.9 t ADT: 20
Piney Woods Rd
FairOver: EDWARDS MILL CREEK
0.78M SW OF LA 9, Bienville, LA
Built 1993 Load: 3.6 t ADT: 50
OLD HWY 80
FairOver: JUDD BAYOU
JUDD BAYOU #1 (EAST), Madison, LA
Built 1908 Load: 3.6 t
Cypress Point Rd
FairOver: COULEE
4.2 Mi E of LA 14, Vermilion, LA
Built 1970 Load: 4.2 t ADT: 288
LA0404
FairOver: BAYOU DANIEL
4.1 Mi. E of LA 75, Iberville, LA
Built 1955 Load: 4.5 t ADT: 551
LA1027
FairOver: WEST COLYELL CR
0.2 M E OF LA 1026, Livingston, LA
Built 1952 Load: 4.5 t ADT: 6,554
SMITHRIDGE BRIDGE
FairOver: PETIT CAILLOU BAYOU
0001 LOG MI FROM IN, Terrebonne, LA
Built 1968 Load: 4.5 t ADT: 438
Blackmore Rd
FairOver: GRANTS BAYOU WEST FORK
0.2 M N of LA 965, West Feliciana, LA
Built 1999 Load: 4.5 t ADT: 78
St. Charles Bypass
FairOver: GRAND COTEAU BAYOU
0148 LOG MI FROM INT, Lafourche, LA
Built 1970 Load: 5.2 t ADT: 1,193
Will Landry Rd
FairOver: WAUKSHA BAYOU
0.12 MILES N OF LA 103, St. Landry, LA
Built 2012 Load: 5.5 t ADT: 10
N. Hollingsworth
FairOver: VALCOURT COULEE
0.06 MI W. Of La 82, Vermilion, LA
Built 1960 Load: 5.5 t ADT: 500
Tucker Rd
FairOver: CREEK
0.04M SOUTH OF LA 777, LaSalle, LA
Built 1989 Load: 6.2 t ADT: 50
Cypress Point Rd
FairOver: COULEE
2 Mi E of La 14, Vermilion, LA
Built 1960 Load: 6.2 t ADT: 288
LA0016
FairOver: AMITE RIVER-FRENCH S'MEN
1.6 M S OF LA 444, Livingston, LA
Built 1960 Load: 6.4 t ADT: 4,313
LA0434
FairOver: BAYOU LACOMBE
2.5 Miles South of LA 36, St. Tammany, LA
Built 1953 Load: 6.4 t ADT: 3,690
LA1062
FairOver: DRAIN
3.5 M SE OF LA 445, Tangipahoa, LA
Built 1954 Load: 6.4 t ADT: 3,571
Amerada Rd
FairOver: COULEE
2.41 Mi S of LA 92, Vermilion, LA
Built 1968 Load: 6.5 t ADT: 160
LA1061
FairOver: HORSE BRANCH
2.2 M NE OF LA 1054, Tangipahoa, LA
Built 1958 Load: 6.8 t ADT: 279
Delhomme Ave.
FairOver: COULEE
0.3 MI W of LA 3168, Lafayette, LA
Built 2005 Load: 7.1 t ADT: 132
Spencer Rd
FairOver: FLORENCE CANAL
0.01 Mi. W of LA 91, Vermilion, LA
Built 1960 Load: 7.1 t ADT: 75
Arnold Rd
FairOver: COULEE
0.5 Mi NW of Brice Ln, Vermilion, LA
Built 1974 Load: 7.1 t ADT: 50
Agate Rd.
FairOver: BRUSHY BAYOU
2.28 Mi E of US 165, Evangeline, LA
Built 2003 Load: 7.3 t ADT: 17
LA0147
FairOver: BIG CREEK
3.72 MI EAST OF US 167, Jackson, LA
Built 1970 Load: 7.3 t ADT: 5,394
LA0563
FairOver: BIG CREEK
1.65 MI NORTH OF LA 544, Lincoln, LA
Built 1973 Load: 7.3 t ADT: 1,064
Traino Rd
FairOver: CANAL
3 MI S. OF LA 22 TRAIN RD, Tangipahoa, LA
Built 1995 Load: 7.3 t ADT: 391
Cheneau Rd
FairOver: DE JOHN BRANCH COULEE
1.2 Mi E of La 35, Vermilion, LA
Built 1990 Load: 7.3 t ADT: 500
Casanova Rd
FairOver: COULEE
1 Mi. E. Of La 1109, Acadia, LA
Built 1999 Load: 7.5 t ADT: 48
Owen Miller Rd
FairOver: SPRING CREEK
0.74 MI. EAST OF LA 121, Rapides, LA
Built 1996 Load: 7.5 t ADT: 80
LA0132
FairOver: MUDDY BAYOU
.3 MI EAST OF LA 135, Richland, LA
Built 1972 Load: 7.5 t ADT: 1,913
Smith Rd
FairOver: LITTLE BOGUE FALAYA RIVE
1.2 MI N/W JCT LA1082 &21, St. Tammany, LA
Built 2001 Load: 7.5 t ADT: 2,253
Prairie Rd
FairOver: Bayou Little
0.6 Mi S of Community Rd, Vermilion, LA
Built 1975 Load: 7.5 t ADT: 18
E Loyoal Dr
FairOver: CANAL NO. 7
1.2 MI. N. OF 35 TH., Jefferson, LA
Built 1970 Load: 7.8 t
FRANKLIN AVE
FairOver: FLORIDA CANAL / RR
0.5MI.S.OF I.10, Orleans, LA
Built 1950 Load: 7.8 t
FRANKLIN AVE
FairOver: FLORIDA CANAL / RR
.5MIS.OF I.10, Orleans, LA
Built 1950 Load: 7.8 t
Wright Rd
FairOver: COULEE
1.7 Mi S of La 14, Vermilion, LA
Built 1965 Load: 7.8 t ADT: 150
LA0399
FairOver: FLAT BRANCH
1.99 MI NORTH OF LA 10, Vernon, LA
Built 1964 Load: 7.9 t ADT: 396
Maxwell Xing Rd
FairOver: CREEK
1.73 M. S. OF LA 3098, Grant, LA
Built 1930 Load: 8.1 t ADT: 125
LA0631
FairOver: BAYOU DESALLEMAND
.4 MI WEST OF LA 632, St. Charles, LA
Built 1935 Load: 8.1 t ADT: 1,834
LA0134
FairOver: CREEK
3.82 MI WEST OF US 425, Morehouse, LA
Built 1972 Load: 8.4 t ADT: 540
LA0330
FairOver: BAYOU TIGRE
4.25 MI N. OF LA 685, Vermilion, LA
Built 1960 Load: 8.4 t ADT: 1,523
MUSSEL WHITE RD
FairOver: CHINQUAPIN CREEK
5.4 MI NE OF LA 26, Allen, LA
Built 1982 Load: 8.7 t ADT: 110
Jo Boy Rd
FairOver: HENDERSON BAYOU
.5 MI NE LA 44 LA 933 JCT, Ascension, LA
Built 1984 Load: 8.7 t ADT: 100
Showing 901-950 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 |