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
Willow St.
GoodOver: COULEE
1.2 Mi. W of LA 182, St. Mary, LA
Built 1957 Load: 17.2 t ADT: 1,350
PINE HILL ROAD
GoodOver: McCAIN CREEK
1.6 MI W OF LA 1, Caddo, LA
Built 2020 Load: 17.5 t ADT: 1,172
US0090
GoodOver: FRANCE RD/N.O. BELT R/R
0.50 M NORTH OF I-10, Orleans, LA
Built 1989 Load: 17.5 t ADT: 47,738
LA0986
GoodOver: DRAINAGE CANAL
0.6 M E of LA 415@LA 986, West Baton Rouge, LA
Built 1923 Load: 17.5 t ADT: 1,204
METZGER RD
GoodOver: GOVERNMENT DITCH
1.1 MI E of ARDOIN RD, Calcasieu, LA
Built 2017 Load: 17.8 t ADT: 46
FDR 814
GoodOver: COW BRANCH
2.0 MI. E. OF LA. 159, Webster, LA
Built 1979 Load: 17.8 t ADT: 30
LA0097
GoodOver: CREEK
0.1 MI SOUTH OF US 190, Acadia, LA
Built 1956 Load: 18.1 t ADT: 1,175
Green Valley Rd
GoodOver: COULEE
0.40 Mi NW of La 748, Evangeline, LA
Built 1993 Load: 18.1 t ADT: 41
Pine Prairie Loop
GoodOver: PINE CREEK
LOG MI 5.6 FR 186 TO 123, Franklin, LA
Built 1998 Load: 18.1 t ADT: 180
Brownell Rd
GoodOver: WEST TURKEY CREEK
0.02 MI W OF LA 4, Franklin, LA
Built 1996 Load: 18.1 t ADT: 143
Austria Rd.
GoodOver: BAYOU QUEUE DE TORTUE
0.30 MI SOUTH US 90, Lafayette, LA
Built 1997 Load: 18.1 t ADT: 40
NFSR 513
GoodOver: SALINE BAYOU
NATIONAL FOREST ROAD, Natchitoches, LA
Built 2003 Load: 18.1 t ADT: 30
PINE ST
GoodOver: WASHINGTON AVE. CANAL
0.04 MI NE OF STROELITZ S, Orleans, LA
Built 1991 Load: 18.1 t ADT: 1,000
MARVIN HEAD RD
GoodOver: PRAIRION BAYOU
0.17 MI SE of LA 557, Ouachita, LA
Built 1996 Load: 18.1 t ADT: 463
RED CUT RD
GoodOver: PRARION BAYOU
2.76 MI. NE HWY. 557, Ouachita, LA
Built 1978 Load: 18.1 t ADT: 135
CADEVILLE CUTOFF
GoodOver: GUYTON CREEK
0.40 MI NW of LA 34, Ouachita, LA
Built 1997 Load: 18.1 t ADT: 307
Falcon Rd
GoodOver: Bayou Mallet
1.09 MI SW of LA 104, St. Landry, LA
Built 2000 Load: 18.1 t ADT: 35
SUWANEE ST
GoodOver: ICE WATER BRANCH
0.25 MI. SOUTH OF HWY 10, Washington, LA
Built 1995 Load: 18.1 t ADT: 321
Lee Rd
GoodOver: BETTS CREEK
1.0M NORTH OF LA 1072, Washington, LA
Built 1993 Load: 18.1 t ADT: 265
IKES RD
GoodOver: KINDER DITCH
0.6 MI W of US 165, Allen, LA
Built 1999 Load: 18.5 t ADT: 136
MAHAFFEY RD
GoodOver: FLAT CREEK
2.5 MI SOUTH OF LA 26, Allen, LA
Built 1998 Load: 18.5 t ADT: 110
Elderwood Rd
GoodOver: DRAINAGE DITCH
APP. 1 MI. N. OF LA 114, Avoyelles, LA
Built 1992 Load: 18.5 t ADT: 530
LINE AVE
GoodOver: OCKLEY DITCH
1.8 MI NO OF LA 511, Caddo, LA
Built 1996 Load: 18.5 t ADT: 18,000
TANK FARM RD
GoodOver: CREEK
1.1 MI EAST OF LA 384, Calcasieu, LA
Built 1986 Load: 18.5 t ADT: 1,430
LA0959
GoodOver: LITTLE SANDY CK
3.1 M East of LA 67, East Feliciana, LA
Built 1960 Load: 18.5 t ADT: 1,679
LA0959
GoodOver: SCALAUS CREEK
1.8 M E of LA 959&LA 409, East Feliciana, LA
Built 1960 Load: 18.5 t ADT: 1,679
Kerrel Vidrine Rd.
GoodOver: DE MANUEL COULEE
0.50 Mi N of La 104, Evangeline, LA
Built 1987 Load: 18.5 t ADT: 37
Mike Ln.
GoodOver: GRAND LOUIS BAYOU
0.17 Mi S of La 1160, Evangeline, LA
Built 1993 Load: 18.5 t ADT: 36
Whispering Pine Rd
GoodOver: DE MANUEL COULEE
2.0M EAST OF LA 29, Evangeline, LA
Built 1992 Load: 18.5 t ADT: 113
Bayou Toureau Rd.
GoodOver: TAUREAU BAYOU
0.73 Mi NW of La 115, Evangeline, LA
Built 1993 Load: 18.5 t ADT: 15
ABELL ROAD
GoodOver: EAST BAYOU LACASSINE
0.5 MI W of LA 99, Jefferson Davis, LA
Built 1999 Load: 18.5 t ADT: 350
ESTES ROAD
GoodOver: DRAIN
0.7 MI E of US 165, Jefferson Davis, LA
Built 1999 Load: 18.5 t ADT: 200
FLOWERS RD
GoodOver: D'ARBONNE BAYOU
1.2 MI SW of US 167, Lincoln, LA
Built 2001 Load: 18.5 t ADT: 70
RED CUT RD
GoodOver: RAWLS BRANCH
0.90 MI W of LA 557, Ouachita, LA
Built 1992 Load: 18.5 t ADT: 354
Odon Meche Rd.
GoodOver: DRAINAGE BAYOU
0.6 Mi W of Meche Rd, St. Landry, LA
Built 1987 Load: 18.5 t ADT: 150
Curleys Rd.
GoodOver: BAYOU BOURBEAUX
1.93 Mi SE of LA 754, St. Landry, LA
Built 1992 Load: 18.5 t ADT: 175
Robert Dailey Rd
GoodOver: Bayou Bourbeaux
0.3 Mi. SE Of La 754, St. Landry, LA
Built 1994 Load: 18.5 t ADT: 470
Homer Richard Rd.
GoodOver: Bayou Plaquemine Brule
0.5 Mi. E. of La 35, St. Landry, LA
Built 1994 Load: 18.5 t ADT: 400
Falcon Rd
GoodOver: Drainage Canal
0.48 Mi N of US 190, St. Landry, LA
Built 1994 Load: 18.5 t ADT: 35
marion St
GoodOver: CREEK
1.2 MI E LA 59 MARION ST., St. Tammany, LA
Built 1996 Load: 18.5 t ADT: 300
COUNTRY DR
GoodOver: BAYOU TERREBONNE
0.02 MI S. OF LA 24, Terrebonne, LA
Built 2013 Load: 18.5 t ADT: 2,390
DOUBLE BRIDGES RD
GoodOver: CANE CREEK
1.5 MI SE of US 167, Union, LA
Built 1994 Load: 18.5 t ADT: 223
PILGRIM REST CH RD
GoodOver: DAVIS CREEK
5.2 MI NW of LA 15, Union, LA
Built 1998 Load: 18.5 t ADT: 366
S. Aladin Rd
GoodOver: TIGRE BAYOU
0.3 Mi S of Jude Rd, Vermilion, LA
Built 1987 Load: 18.5 t ADT: 324
Sic Jenkins Rd
GoodOver: BOGUE LUSA CREEK
1.3 MILES N. OF HWY LA 60, Washington, LA
Built 1995 Load: 18.5 t ADT: 543
Monroe Cr. Rd
GoodOver: THOMAS CREEK BRIDGE
6.53 MI W. OF HWY 21, Washington, LA
Built 1996 Load: 18.5 t ADT: 390
Old Columbia Rd
GoodOver: ARD CREEK BRIDGE
1.6 MI N. OF HWY 438, Washington, LA
Built 1996 Load: 18.5 t ADT: 334
NORTH NINTH ST
GoodOver: CREEK
0.2 MI N of LA 26, Allen, LA
Built 2007 Load: 18.8 t ADT: 119
LA0070
GoodOver: BAYOU CHOUPIQUE
0.4 M E of LA 69&LA 70, Assumption, LA
Built 1958 Load: 18.8 t ADT: 5,760
Dinkins Drive
GoodOver: DINKINS DR.@MO.PAC.RR
0.3 MI.S. LA.511, Caddo, LA
Built 1982 Load: 18.8 t ADT: 259
Showing 6,751-6,800 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 |