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
Pepper Rd
FairOver: COULEE
0.8 Mi S of US 90, St. Mary, LA
Built 1967 Load: 18.8 t ADT: 330
US0051
FairOver: PONCHATOULA CREEK
US0051, Tangipahoa, LA
Built 1931 Load: 18.8 t ADT: 21,457
Wadesboro Rd
FairOver: NAV. PONCHATOULA
3.3 MI SW OF SR 22 E, Tangipahoa, LA
Built 1980 Load: 18.8 t ADT: 585
W. Palmetto St
FairOver: CREEK
1.2 MI SW/JCT16 PALMETTA, Tangipahoa, LA
Built 1975 Load: 18.8 t ADT: 545
PAUL VICE BRIDGE
FairOver: DULARGE BAYOU
0001 LOG MI FROM IN, Terrebonne, LA
Built 1966 Load: 18.8 t ADT: 240
N. Hollywood Rd
FairOver: ST. LOUIS CANAL
0.8 MI E OF LA 24, Terrebonne, LA
Built 1986 Load: 18.8 t ADT: 8,236
Funderburk Ave
FairOver: BAYOU TERREBONNE
0.01 M W OF LA 24, Terrebonne, LA
Built 1965 Load: 18.8 t ADT: 5,001
DEADWOOD RD
FairOver: COULEE
0.3 MI NORTH OF LA 20, Terrebonne, LA
Built 1966 Load: 18.8 t ADT: 358
LA0696
FairOver: COULEE KENNY
2.3 MI W. OF LA 343, Vermilion, LA
Built 1964 Load: 18.8 t ADT: 736
LA0017
FairOver: CREEK
2.5 MI NORTH OF LA 577, West Carroll, LA
Built 1924 Load: 18.8 t ADT: 2,238
Fournerat Rd
FairOver: Bayou Des Cannes
2.1 Mi. W. Of La 91, Acadia, LA
Built 1986 Load: 19.1 t ADT: 720
US0190
FairOver: CREEK
7.3 MI. E OF INT LA 113, Allen, LA
Built 1954 Load: 19.1 t ADT: 3,923
LA0026
FairOver: BAYOU BLUE RELIEF
3.5 MI S OF LA 104, Allen, LA
Built 1957 Load: 19.1 t ADT: 2,027
LA0026
FairOver: BAYOU BLUE
4.0 MI. N OF US190, Allen, LA
Built 1957 Load: 19.1 t ADT: 1,088
PALESTINE RD
FairOver: CREEK
2.6 MI EAST OF LA 377, Allen, LA
Built 1970 Load: 19.1 t ADT: 609
LA0429
FairOver: NEW RIVER
LA0429, Ascension, LA
Built 1957 Load: 19.1 t ADT: 9,071
LA0621
FairOver: BLACK BAYOU CANAL
0.6 M E of US 61, Ascension, LA
Built 1967 Load: 19.1 t ADT: 7,519
LA0012
FairOver: COWARDS GULLY
3.9 MI. W OF INT LA 389, Beauregard, LA
Built 1956 Load: 19.1 t ADT: 3,097
LA0110
FairOver: HOOSIER CREEK
3.8 MI. SE OF US190, Beauregard, LA
Built 1959 Load: 19.1 t ADT: 1,947
LA0110
FairOver: BEAR HEAD CREEK
3.1 MI. W OF US190, Beauregard, LA
Built 1959 Load: 19.1 t ADT: 1,947
LA0110
FairOver: BEAR HEAD MARSH
2.5 MI. E OF LA27, Beauregard, LA
Built 1959 Load: 19.1 t ADT: 1,947
LA0110
FairOver: BECKWITH CREEK RELIEF
2.27 MI. E OF INT LA27, Beauregard, LA
Built 1961 Load: 19.1 t ADT: 2,079
LA0110
FairOver: COLE CREEK
7.45 MI. E OF INT LA27, Beauregard, LA
Built 1961 Load: 19.1 t ADT: 2,079
LA0003
FairOver: DRAIN
.71 MI NORTH OF LA 2, Bossier, LA
Built 1960 Load: 19.1 t ADT: 2,638
HAYWOOD DRIVE
FairOver: HOLLYWOOD DITCH
200 FT.EAST OF BETHU, Caddo, LA
Built 1961 Load: 19.1 t ADT: 1,850
Clyde Place-Vivian
FairOver: CLYDE PL VIV RD,BLACK B.
3.3MI S OF LA HWY.17, Caddo, LA
Built 1980 Load: 19.1 t ADT: 40
LA0012
FairOver: BEAR HEAD CREEK
2.13 MI EAST OF LA 109, Calcasieu, LA
Built 1956 Load: 19.1 t ADT: 3,097
LA0014
FairOver: INDIAN BAYOU CANAL
3.0 MI EAST OF LA 27, Calcasieu, LA
Built 1959 Load: 19.1 t ADT: 2,023
5TH AVE
FairOver: DRAIN
0.2 MI N. OF LA 3186, Calcasieu, LA
Built 1975 Load: 19.1 t ADT: 2,449
BANKEN RD
FairOver: BAYOU ARCENEAUX
2.3 MI EAST OF LA 27, Calcasieu, LA
Built 1955 Load: 19.1 t ADT: 1,076
DOUGLAS RD
FairOver: BUXTON CREEK
.4 MILES EAST OF LA 27, Calcasieu, LA
Built 1997 Load: 19.1 t ADT: 1,000
BILL PHILLIPS RD
FairOver: CREEK
0.9 MI. N. of LA 389, Calcasieu, LA
Built 1991 Load: 19.1 t ADT: 980
US0084
FairOver: DRAIN
1.4 MI EAST OF LA 191, De Soto, LA
Built 1951 Load: 19.1 t ADT: 4,251
US0084
FairOver: B.GRAND CANE RLF
1.7 MI EAST OF LA 191, De Soto, LA
Built 1951 Load: 19.1 t ADT: 4,251
Elvin Dr
FairOver: DRAIN BAYOU
.50 MI SOUTH OF BURBANK, East Baton Rouge, LA
Built 1984 Load: 19.1 t ADT: 1,762
Baird Dr
FairOver: WALDEN LAKE
0.1 Mi. S of Walden Rd, East Baton Rouge, LA
Built 1973 Load: 19.1 t ADT: 522
Southfork Ave
FairOver: DRAIN BAYOU
.20 MI N.SHERWOOD FR.BLVD, East Baton Rouge, LA
Built 1983 Load: 19.1 t ADT: 2,436
Chester Rd
FairOver: CREEK
LOGMI 5.66 FR 037 TO, Franklin, LA
Built 1965 Load: 19.1 t ADT: 53
FDR 115
FairOver: CYPRESS CREEK
NO DATA ENTERED, Grant, LA
Built 1965 Load: 19.1 t ADT: 43
FDR 120
FairOver: GRAY BRANCH
NO DATA ENTERED, Grant, LA
Built 1970 Load: 19.1 t ADT: 28
FDR 165
FairOver: N FORK FISH CREEK
NO DATA ENTERED, Grant, LA
Built 1965 Load: 19.1 t ADT: 28
FDR 558
FairOver: FRIDAY CREEK
LOGMI 1.25 FR 569 TO, Grant, LA
Built 1966 Load: 19.1 t ADT: 34
FDR 558
FairOver: SCHOOL HOUSE BRANCH
LOGMI 0.41 FR 569 TO, Grant, LA
Built 1965 Load: 19.1 t ADT: 34
LA0008
FairOver: LITTLE SANDY BAYOU
4.25 MI EAST OF LA 1, Grant, LA
Built 1948 Load: 19.1 t ADT: 1,977
Estis Rd
FairOver: Segura Branch Canal
0.5 MI E of US 90 Serv Rd, Iberia, LA
Built 1966 Load: 19.1 t ADT: 323
LA0146
FairOver: CHOUDRANT CREEK
.4 MI SOUTH OF LA 145, Jackson, LA
Built 1951 Load: 19.1 t ADT: 882
LA0556
FairOver: SO CHOUDRANT CR
4.05 MI WEST OF LA 144, Jackson, LA
Built 1968 Load: 19.1 t ADT: 376
LA0542
FairOver: CREEK
.49 MI SOUTH OF LA 813-3, Jackson, LA
Built 1959 Load: 19.1 t ADT: 485
DRAKE AVE
FairOver: BAYOU SEGNETTE
0.5 M NORTH OF LAPALCO, Jefferson, LA
Built 1960 Load: 19.1 t ADT: 200
CLUB DR
FairOver: CANAL NO.3
0.005 MI N OF VETERANS B, Jefferson, LA
Built 1970 Load: 19.1 t
Showing 1,701-1,750 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 |