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
Vie Terre Beau Rd
FairOver: Nezpique Bayou
1.41 MI. WEST OF LA 1123, Acadia, LA
Built 2015 Load: 13.6 t ADT: 48
Lake Pearl Rd
FairOver: DRAINAGE DITCH
APPROX. 0.5 MI. EAST OF S, Avoyelles, LA
Built 1995 Load: 13.6 t ADT: 60
Foster Drive
FairOver: BAYOU PEROT
MARKSVILLE, AVOYELLES PAR, Avoyelles, LA
Built 1985 Load: 13.6 t ADT: 100
LA0612
FairOver: CREEK
1.36 MI EAST OF US 71, Bossier, LA
Built 1965 Load: 13.6 t ADT: 8,332
ARDIS TAYLOR DRIVE
FairOver: GREEN TERRACE DITCH
0.6 MI. EAST OF LA 5, Caddo, LA
Built 1970 Load: 13.6 t ADT: 2,000
Old Moorings-Latex
FairOver: MILLER BRANCH
0.4 MI NORTH OF CADDO 130, Caddo, LA
Built 2000 Load: 13.6 t ADT: 57
LAVOI RD
FairOver: CANAL
0.3 MI S OF LA 14, Calcasieu, LA
Built 1997 Load: 13.6 t ADT: 143
LA0104
FairOver: PINE POINT GULLY
0.9 MI EAST OF LA 1161, Evangeline, LA
Built 1970 Load: 13.6 t ADT: 2,203
LA0676
FairOver: DEBLANC COULEE
1.5 MI WEST OF LA 14, Iberia, LA
Built 1942 Load: 13.6 t ADT: 553
LA0004
FairOver: BEAR CREEK
.7 MI EAST OF LA 499, Jackson, LA
Built 1952 Load: 13.6 t ADT: 338
THREE MILE RD.
FairOver: EAST LACASSINE BAYOU
1.60 MI. E. OF INT. LA 99, Jefferson Davis, LA
Built 1970 Load: 13.6 t ADT: 40
Souvenir Gate Rd.
FairOver: MINE BRANCH COULEE
0.76 Mi SW of LA 182, Lafayette, LA
Built 1970 Load: 13.6 t ADT: 900
MONDY RD
FairOver: REDWINE CREEK
5 MI SE SIMSBORO, Lincoln, LA
Built 1977 Load: 13.6 t ADT: 175
LA1024
FairOver: CREEK
0.4 M E OF LA 16, Livingston, LA
Built 1956 Load: 13.6 t ADT: 1,020
S. Range Rd
FairOver: CREEK
2 MI. NW OF LA 63, Livingston, LA
Built 1998 Load: 13.6 t ADT: 600
Wildwood Dr
FairOver: BEAVER CREEK
.55 MI N OF JUNC 16& 1025, Livingston, LA
Built 1999 Load: 13.6 t ADT: 100
LA0599
FairOver: BONNE IDEE
3.1 MI EAST OF US 165, Morehouse, LA
Built 1957 Load: 13.6 t ADT: 268
LAPINE RD
FairOver: ROGERS CREEK
6 MI NW LUNA, Ouachita, LA
Built 1960 Load: 13.6 t ADT: 118
REMBERT ST
FairOver: HUFFMAN CREEK
0.02 M. N. OF GREER ST., Rapides, LA
Built 1981 Load: 13.6 t ADT: 250
LA0038
FairOver: CREEK
0.2 M E OF LA 432, St. Helena, LA
Built 1954 Load: 13.6 t ADT: 933
Green Rd.
FairOver: Bayou Fuselier
2.2 Mi. N. of La 1252, St. Landry, LA
Built 1979 Load: 13.6 t ADT: 125
Kennerson Rd
FairOver: Bayou Kennison
0.2 Mi. S. Of I49 Srvc Rd, St. Landry, LA
Built 1971 Load: 13.6 t ADT: 575
Bayou Mercier Rd.
FairOver: BERARD CANAL BAYOU
0.2 Mi. W of LA 96, St. Martin, LA
Built 1965 Load: 13.6 t ADT: 414
LA0319
FairOver: CYPREMORT POINT
7.6 MI SOUTH OF LA 83, St. Mary, LA
Built 1969 Load: 13.6 t ADT: 914
Katy Bridge App Rd
FairOver: TECHE BAYOU
0.2 Mi. N of La 182, St. Mary, LA
Built 1959 Load: 13.6 t ADT: 1,050
LA0040
FairOver: SAVANNAH BRANCH
LA0040, St. Tammany, LA
Built 1954 Load: 13.6 t ADT: 2,778
LA1085
FairOver: BRIDGE OVER FOX BRANCH
1.20 M SOUTH OF I-12, St. Tammany, LA
Built 1968 Load: 13.6 t ADT: 6,010
Stepp Rd
FairOver: CREEK
3 MI SE OF JCT 190 &, Tangipahoa, LA
Built 1960 Load: 13.6 t ADT: 272
Easley Rd
FairOver: SCOTT CREEK
2.4 MI NW OF JCT 40& 1062, Tangipahoa, LA
Built 1960 Load: 13.6 t ADT: 880
LA0568
FairOver: LITTLE CHOCTAW BAYOU
.01 MI NORTH OF LA 3009, Tensas, LA
Built 1958 Load: 13.6 t ADT: 329
DR. BEATROUS RD
FairOver: MARMANDE CANAL
0.3 MI N OF ST. ELOI RD, Terrebonne, LA
Built 1960 Load: 13.6 t ADT: 330
Farmer Rd
FairOver: ROBINS CANAL
2.6 Mi S of La 14, Vermilion, LA
Built 1965 Load: 13.6 t ADT: 30
FDR 422
FairOver: HURRICANE BRANCH
5.2 M. NE. OF ROSEPIN, Vernon, LA
Built 1970 Load: 13.6 t ADT: 50
LOOKOUT ROAD
FairOver: WEST FORK SIXMILE CREEK
VE996339, Vernon, LA
Built 1976 Load: 13.6 t ADT: 100
BEN'S FORD ROAD
FairOver: BOGUE LUSA CREEK
0.27 MI N OF LA.60, Washington, LA
Built 2016 Load: 13.6 t ADT: 300
LA1071
FairOver: CREEK
4.9 M SE OF LA 21, Washington, LA
Built 1954 Load: 13.6 t ADT: 498
Van Buren St
FairOver: COBURN CREEK
0.1.MI. N.OF LUCERNE, Washington, LA
Built 1960 Load: 13.6 t ADT: 780
DORCHEAT ST.
FairOver: CREEK
0.28 MI NE OF US 371, Webster, LA
Built 1925 Load: 13.6 t ADT: 890
Tolson Rd
FairOver: COULEE
1.2 Mi E of Verot Sch Rd, Lafayette, LA
Built 1977 Load: 13.9 t ADT: 2,580
LA0557
FairOver: PRAIRION BAYOU
5.06 MI SOUTH OF LA 34, Ouachita, LA
Built 1964 Load: 13.9 t ADT: 1,073
Cleo Rd
FairOver: BILL COULEE
0.5 Mi W of Leon Rd, Vermilion, LA
Built 1976 Load: 13.9 t ADT: 150
Big 4 Rd
FairOver: Maree Michel Canal
1.1 Mi S of La 14, Vermilion, LA
Built 1998 Load: 13.9 t ADT: 70
450 FDR
FairOver: BLACK CREEK BRANCH
8.0 M. E. OF ROSEPINE, Vernon, LA
Built 1970 Load: 13.9 t ADT: 20
450 FDR
FairOver: BRANCH OF BLACK CREEK
7.8M. E. OF ROSEPIN, Vernon, LA
Built 1970 Load: 13.9 t ADT: 20
450 FDR
FairOver: BRANCH OF BLACK CREEK
6.2 M. E. OF ROSEPIN, Vernon, LA
Built 1970 Load: 13.9 t ADT: 20
LA0107
FairOver: BAYOU JACK RELIEF
0.52 MI. SOUTH OF LA 1179, Avoyelles, LA
Built 1958 Load: 14.3 t ADT: 1,214
LA1147
FairOver: E CANEY BRANCH
1.4 MI NW OF LA 113, Beauregard, LA
Built 1967 Load: 14.3 t ADT: 261
BLEDSOE RD
FairOver: BUCHANAN BAYOU
.1 MI.W. US 171 BLEDSOE R, Caddo, LA
Built 1983 Load: 14.3 t ADT: 77
Gamm Rd Ext
FairOver: GAMM RD EXT. DOOLEY BAYO
1.9 MI N INT HWY 169, Caddo, LA
Built 1929 Load: 14.3 t ADT: 98
FDR 155
FairOver: SCHOOL HOUSE CREEK
LOGMI 5.27 FR 518 TO, Grant, LA
Built 1965 Load: 14.3 t ADT: 15
Showing 1,101-1,150 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 |