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
Columbia Rd
GoodOver: Brushy Creek
0.5 Mi S of Roy Watson Rd, Catahoula, LA
Built 1986 Load: 18.8 t ADT: 50
ELIZARDI BLVD
GoodOver: MAGELLAN CANAL
0.4MI.SOTH OF LA.428, Orleans, LA
Built 1970 Load: 18.8 t
US0051
GoodOver: DRAIN
0.2 M S OF LA 10, Tangipahoa, LA
Built 1957 Load: 18.8 t ADT: 6,067
US0190
GoodOver: LIVELY BAYOU
US0190, East Baton Rouge, LA
Built 1958 Load: 19.1 t ADT: 24,571
LA0104
GoodOver: BEACON'S GULLY
1.9 Mi E of LA 13, Evangeline, LA
Built 2008 Load: 19.1 t ADT: 2,203
FDR 145
GoodOver: HURRICANE
NO DATA ENTERED, Grant, LA
Built 1970 Load: 19.1 t ADT: 13
Chastant Rd
GoodOver: Romero Branch Canal
1.21 Mi. SE. of La 89, Iberia, LA
Built 2011 Load: 19.1 t ADT: 215
LA0343
GoodOver: B QUEUE DE TORTUE
0.3 MI SOUTH OF US 90, Lafayette, LA
Built 1957 Load: 19.1 t ADT: 5,472
US0190
GoodOver: GREYS CREEK
0.2 M E OF LA 16, Livingston, LA
Built 1956 Load: 19.1 t ADT: 17,500
LA0064
GoodOver: BEAVER CREEK
LA0064, Livingston, LA
Built 1955 Load: 19.1 t ADT: 13,798
Blackmud Rd
GoodOver: COLYELL CREEK
2.5 M N/E OF 447 EXIT, Livingston, LA
Built 1998 Load: 19.1 t ADT: 300
Fire Station Rd
GoodOver: BAYOU BEOUF
0.01 Mi S of LA 182, St. Landry, LA
Built 2005 Load: 19.1 t ADT: 250
CRAWFORD ROAD
GoodOver: LITTLE GUM BAYOU
0.87 MI WEST OF LA 41, St. Tammany, LA
Built 1998 Load: 19.1 t ADT: 280
LA0040
GoodOver: TANGIPAHOA RIVER
1.3 Miles East of US 51, Tangipahoa, LA
Built 1965 Load: 19.1 t ADT: 4,748
LA1064
GoodOver: EAST PONCHATOULA CREEK
0.66 MI. EAST OF LA 1065, Tangipahoa, LA
Built 1957 Load: 19.1 t ADT: 2,854
LA0450
GoodOver: LITTLE SILVER CR
LA0450, Washington, LA
Built 1957 Load: 19.1 t ADT: 276
Hamilton Rd
GoodOver: Dairy Creek
3.8 Mi. NE of US 61, West Feliciana, LA
Built 2022 Load: 19.1 t ADT: 40
LA0965
GoodOver: CHANEY CREEK
LA0965, West Feliciana, LA
Built 1959 Load: 19.1 t ADT: 2,133
PINES RD
GoodOver: GILMER BAYOU
0.3 MI. SO. OF LA 51, Caddo, LA
Built 1969 Load: 19.4 t ADT: 2,000
Yolande Dr.
GoodOver: COULEE
0.03 Mi NE of Rena Dr, Lafayette, LA
Built 1965 Load: 19.4 t ADT: 550
2nd St
GoodOver: RICHARDS GULLY
0.12 Mi S of LA 13, St. Landry, LA
Built 1985 Load: 19.4 t ADT: 410
US0090
GoodOver: CREEK
2.5 MI EAST OF LA 35, Acadia, LA
Built 1932 Load: 19.8 t ADT: 5,359
Standard Mill Rd
GoodOver: COULEE
0.47 Mi. E. of La 35, Acadia, LA
Built 1993 Load: 19.8 t ADT: 3,600
West Lakeshore Dr
GoodOver: SHETTLEWORTH BAYOU
3.5 MI. SW OF BLANCHARD, Caddo, LA
Built 1998 Load: 19.8 t ADT: 100
BOYS VILLAGE RD
GoodOver: WEST FORK ENGLISH BAYOU
1.5 MI S of US 90, Calcasieu, LA
Built 2014 Load: 19.8 t ADT: 336
ELLIOT RD
GoodOver: CANAL
1.0 MI N OF W LINCOLN RD, Calcasieu, LA
Built 1999 Load: 19.8 t ADT: 2,920
S. HUNTINGTON ST
GoodOver: D'INDE BAYOU
0.4 MI S of LA 1256, Calcasieu, LA
Built 2004 Load: 19.8 t ADT: 1,321
Company Farm Rd
GoodOver: BRUSHY BAYOU
LOG MI 1.95 R 1DE TO 2DE, Franklin, LA
Built 1997 Load: 19.8 t ADT: 68
Griffin Rd
GoodOver: LA SALLE COULEE
1.0 Mi NE of LA 89, Lafayette, LA
Built 1998 Load: 19.8 t ADT: 2,420
S. Fieldspan Rd.
GoodOver: GRANGES COULEE
0.3 MI S of LA 342, Lafayette, LA
Built 1996 Load: 19.8 t ADT: 1,400
COOPER RD
GoodOver: TURKEY CREEK
1.6 MI SW of LA 545, Lincoln, LA
Built 2002 Load: 19.8 t ADT: 235
Joe May
GoodOver: WEST COLYELL CREEK
3.5M S OF LA 447 EXIT, Livingston, LA
Built 1993 Load: 19.8 t ADT: 400
E BEAR LAKE RD #2
GoodOver: BULL BAYOU
5.8 MI W of US 65, Madison, LA
Built 1999 Load: 19.8 t ADT: 144
JACK BONNETT RD
GoodOver: ROGERS CREEK
0.68 MI SE of LA 34, Ouachita, LA
Built 1997 Load: 19.8 t ADT: 31
FERGUSON RD
GoodOver: TURKEY CREEK
2.1 MI W of LA 17, Richland, LA
Built 2005 Load: 19.8 t ADT: 300
FAIR GROUNDS RD
GoodOver: SAN JOSE CREEK
FAIRGROUNDS RD., MANY, Sabine, LA
Built 1994 Load: 19.8 t ADT: 300
Osage Trail
GoodOver: Bayou Bourdeaux
0.5 Mi. N. of La 365, St. Landry, LA
Built 1987 Load: 19.8 t ADT: 540
Bihm Rd
GoodOver: DRAINGE CANAL
0.1 miles West of LA 35, St. Landry, LA
Built 2000 Load: 19.8 t ADT: 150
Westwego St
GoodOver: Bayou Tesson
0.2 Mi E. of Railroad Rd., St. Landry, LA
Built 1965 Load: 19.8 t ADT: 500
Robin St.
GoodOver: Bayou Teche
0.09 Mi W of LA 103, St. Landry, LA
Built 1985 Load: 19.8 t ADT: 1,010
Lawrence Cr. Rd
GoodOver: CREEK
1.4 MI E OF HWY 430, Washington, LA
Built 1996 Load: 19.8 t ADT: 410
Pleasant Hill Ceme
GoodOver: Cypress Bayou Trib
2.6 MI E OF LA 157, Bossier, LA
Built 2014 Load: 20.0 t ADT: 100
LA0004
GoodOver: CREW BAYOU RELIEF
3.3 MI EAST OF LA 559, Caldwell, LA
Built 1957 Load: 20.0 t ADT: 1,558
LA0004
GoodOver: BEOUF RIVER RELIEF
5.1 MI EAST OF LA 559, Caldwell, LA
Built 1957 Load: 20.0 t ADT: 1,558
Peairs Rd
GoodOver: BEAVER CREEK
2.3 MI.E.LA64, LA410, East Baton Rouge, LA
Built 1965 Load: 20.0 t ADT: 1,149
Gallet Rd
GoodOver: ANSELM COULEE
.9 Mi S of LA 92, Lafayette, LA
Built 1968 Load: 20.0 t ADT: 840
US0084
GoodOver: WEST PRONG HEMP CREEK
.2 MI WEST OF LA 127, LaSalle, LA
Built 1956 Load: 20.0 t ADT: 6,905
LA1026
GoodOver: MILLERS CANAL
0.5 M NE OF LA 16, Livingston, LA
Built 1963 Load: 20.0 t ADT: 9,389
US0051
GoodOver: PONCHATOULA CREEK
0.88 MI. NORTH OF LA 1064, Tangipahoa, LA
Built 1953 Load: 20.0 t ADT: 6,681
Aladin Rd
GoodOver: TIGRE BAYOU
0.3 Mi. W of Jude Rd, Vermilion, LA
Built 2013 Load: 20.0 t ADT: 324
Showing 6,801-6,850 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 |