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
ESPLANADE U-TURN
GoodOver: CANAL NO.2
0.01MI.S.OF.W.ESPLAN, Jefferson, LA
Built 1970 Load: 74.5 t ADT: 10,000
US0090
GoodOver: BAYOU BLUE
1.2 MILES NORTH OF US 90, Lafourche, LA
Built 1995 Load: 74.5 t ADT: 12,192
US0090
GoodOver: BAYOU BLUE
1.2 MILES SOUTH OF US 90, Lafourche, LA
Built 1995 Load: 74.5 t ADT: 12,192
US0165
GoodOver: LITTLE RIVER
LOCATED AT GRANT PARISH L, LaSalle, LA
Built 2008 Load: 74.5 t ADT: 4,538
US0165
GoodOver: COCKERHAM CREEK
0.55 MILES FROM GRANT PAR, LaSalle, LA
Built 2008 Load: 74.5 t ADT: 4,538
Terral St
GoodOver: CREEK
0.3 M W of LA 459, LaSalle, LA
Built 1984 Load: 74.5 t ADT: 250
Ash St. (Olla)
GoodOver: CREEK
LOG MI 0.37 FR ODE TO 001, LaSalle, LA
Built 2001 Load: 74.5 t ADT: 250
South Satsuma Rd
GoodOver: Canal
1.05 Mi. S of I-12, Livingston, LA
Built 2020 Load: 74.5 t ADT: 2,100
LA0016
GoodOver: DRAIN
2.0 MI NO. LA 1019 INTER., Livingston, LA
Built 1996 Load: 74.5 t ADT: 7,654
LA1025
GoodOver: CREEK
4.96 MILES EAST OF JCT LA, Livingston, LA
Built 2008 Load: 74.5 t ADT: 7,211
Hammack Rd
GoodOver: CREEK
7.4 MI S OF LS 447 EXIT, Livingston, LA
Built 1998 Load: 74.5 t ADT: 500
Perkins Rd
GoodOver: MOLAR BAYOU
10.5M NE OF 3002 EXIT, Livingston, LA
Built 1993 Load: 74.5 t ADT: 400
LA0478
GoodOver: BAYOU DEMUSE RELIEF
2.33 MI. WEST OF LA 117, Natchitoches, LA
Built 1996 Load: 74.5 t ADT: 60
LA0118
GoodOver: UNNAMED CREEK
1.9 MI. EAST LA 117, Natchitoches, LA
Built 1998 Load: 74.5 t ADT: 164
LA1221
GoodOver: WHITLOCK CREEK
0.29 MI. NORTH OF LA 120, Natchitoches, LA
Built 1993 Load: 74.5 t ADT: 96
LA1221
GoodOver: HASKIN CREEK
1.55 MI. NORTH OF LA 120, Natchitoches, LA
Built 1993 Load: 74.5 t ADT: 96
JOE HOLTON RD
GoodOver: BRANCH OF CLEAR CREEK
1.5 MILES SOUTH OF LA 34, Ouachita, LA
Built 2015 Load: 74.5 t ADT: 58
VOCATIONAL PARKWAY
GoodOver: PATRICK BAYOU
0.7 MILES WEST OF CAMP RO, Ouachita, LA
Built 2013 Load: 74.5 t ADT: 2,191
LA0015
GoodOver: HICKS CREEK
5.64 MI N of US 80, Ouachita, LA
Built 1998 Load: 74.5 t ADT: 6,512
LA0008
GoodOver: DRAIN
1.5 MI. EAST OF LA 119, Rapides, LA
Built 1996 Load: 74.5 t ADT: 1,456
LA0028
GoodOver: DRAIN
4.04 MI. WEST OF LA 3054, Rapides, LA
Built 1997 Load: 74.5 t ADT: 9,482
LA0028
GoodOver: DRAIN
3.6 MI. WEST OF LA 3054, Rapides, LA
Built 1997 Load: 74.5 t ADT: 9,482
LA0028
GoodOver: TIGER BAYOU
3.43 MI. WEST OF LA 3054, Rapides, LA
Built 1997 Load: 74.5 t ADT: 9,482
LA0028
GoodOver: TIGER BAYOU
3.34 MI. WEST OF LA 3054, Rapides, LA
Built 1997 Load: 74.5 t ADT: 9,482
LA0028
GoodOver: DRAIN
2.28 MI. WEST OF LA 3054, Rapides, LA
Built 1997 Load: 74.5 t ADT: 9,482
LA0028
GoodOver: DRAIN
2.0 MI. WEST OF LA 3054, Rapides, LA
Built 1997 Load: 74.5 t ADT: 9,482
LA0028
GoodOver: DRAIN
1.62 MI. WEST OF LA 3054, Rapides, LA
Built 1997 Load: 74.5 t ADT: 9,482
LA0028
GoodOver: DRAIN
1.43 MI. WEST OF LA 3054, Rapides, LA
Built 1997 Load: 74.5 t ADT: 9,482
LA0028
GoodOver: DRAIN
0.69 MI. WEST OF LA 3054, Rapides, LA
Built 1997 Load: 74.5 t ADT: 9,482
O.M. Walker Rd
GoodOver: East Fork Creek
0.2 Mi. E of LA 183, Richland, LA
Built 2017 Load: 74.5 t ADT: 25
OAK ST
GoodOver: CREEK
0.53 MI. EAST OF US 171 B, Sabine, LA
Built 2010 Load: 74.5 t ADT: 760
LA0632
GoodOver: DRAIN CANAL
2.3 MILES SOUTH OF HWY 90, St. Charles, LA
Built 1990 Load: 74.5 t ADT: 1,297
US0090
GoodOver: DAVIS POND DIVERSION
3.0 MILES EAST OF LA 632, St. Charles, LA
Built 2002 Load: 74.5 t ADT: 25,051
R.O. Stewart
GoodOver: Joiner Creek
0.65 Mi. S. of LA 38, St. Helena, LA
Built 2018 Load: 74.5 t ADT: 133
Charlie Overton rd
GoodOver: Spring Creek
2.5 Mi. south of LA 1042, St. Helena, LA
Built 2018 Load: 74.5 t ADT: 285
Sharkey Rd
GoodOver: SPILLER BRANCH PIPE
0.5 NI N OF LA 1045, St. Helena, LA
Built 1998 Load: 74.5 t ADT: 120
LA0744
GoodOver: LITTLE BAYOU TECHE
0.89 MI E OF I-49, St. Landry, LA
Built 2001 Load: 74.5 t ADT: 1,336
CHRIST THE KING RD
GoodOver: BAYOU BOURDEAUX
0.72 Mi NE of LA 178, St. Landry, LA
Built 1987 Load: 74.5 t ADT: 400
Babineaux Rd
GoodOver: Drainage Canal
0.6 Mi N. of La 358, St. Landry, LA
Built 1987 Load: 74.5 t ADT: 210
Thomas Ave
GoodOver: Coulee Garrigue
1.5 Mi. SW of US 167, St. Landry, LA
Built 1994 Load: 74.5 t ADT: 125
US0090
GoodOver: CREEK
2.0 MI EAST OF LA 182, St. Mary, LA
Built 1964 Load: 74.5 t ADT: 9,896
US0090
GoodOver: CREEK
2.1 MI EAST OF LA 182, St. Mary, LA
Built 1964 Load: 74.5 t ADT: 7,885
US0090
GoodOver: CREEK
2.1 MI EAST OF LA 182, St. Mary, LA
Built 1964 Load: 74.5 t ADT: 10,035
Clipper Drive
GoodOver: S. Eden Isles Canal
0.5 Mi. E of US 11, St. Tammany, LA
Built 2019 Load: 74.5 t ADT: 2,433
LA0433
GoodOver: Salt Bayou
2.27 Mi. N. of US 90, St. Tammany, LA
Built 2019 Load: 74.5 t ADT: 4,240
Vitrano Rd
GoodOver: PONCHATOULA CREEK
ON VITRANO ROAD 0.20 MILE, Tangipahoa, LA
Built 2015 Load: 74.5 t ADT: 145
N. River Rd
GoodOver: CREEK
3.20 MILES NORTH OF LA. 1, Tangipahoa, LA
Built 2015 Load: 74.5 t ADT: 218
LA0568
GoodOver: VAN BUREN BAYOU
0.40 M N of LA 3024, Tensas, LA
Built 1995 Load: 74.5 t ADT: 329
LA0604
GoodOver: CREEK
1.10 M E of LA 605, Tensas, LA
Built 1962 Load: 74.5 t ADT: 1,151
LA3252
GoodOver: CHOCTAW BAYOU
LOG MI 3.20 FROM 24 TO 26, Tensas, LA
Built 1986 Load: 74.5 t ADT: 38
Showing 11,201-11,250 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 |