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
LA0024
FairOver: BAYOU TERREBONNE
02550650405259, Terrebonne, LA
Built 1974 Load: 39.0 t ADT: 258
LA0024
FairOver: BAYOU TERREBONNE
LA0024, Terrebonne, LA
Built 1974 Load: 39.0 t ADT: 259
LA0002
FairOver: BAYOU DELOUTRE
2.0 MI EAST OF LA 143, Union, LA
Built 1976 Load: 39.0 t ADT: 6,258
LA0348
FairOver: MERIDIAN CREEK
.9 MI EAST OF LA 549, Union, LA
Built 1973 Load: 39.0 t ADT: 314
LA0348
FairOver: BIG CANE CREEK
5.6 MI EAST OF LA 549, Union, LA
Built 1973 Load: 39.0 t ADT: 314
LA0348
FairOver: BIG CANE RELIEF
5.7 MI EAST OF LA 549, Union, LA
Built 1973 Load: 39.0 t ADT: 314
LA0828
FairOver: CANE CREEK
1.8 MI EAST OF LA 33, Union, LA
Built 1976 Load: 39.0 t ADT: 2,369
LA3147
FairOver: DRAINAGE CANAL
3.84 MI S. OF LA 82, Vermilion, LA
Built 1982 Load: 39.0 t ADT: 221
LA0010
FairOver: DRAIN
1.50 MILES EAST OF LA 450, Washington, LA
Built 1990 Load: 39.0 t ADT: 1,478
LA0060
FairOver: BOGUE LUSA CR
LA0060, Washington, LA
Built 1965 Load: 39.0 t ADT: 11,719
LA1072
FairOver: DRAIN
0.4 M E OF LA 16, Washington, LA
Built 1978 Load: 39.0 t ADT: 1,105
I0020
FairOver: KCS R/R
0.12M EAST OF LA 159, Webster, LA
Built 1960 Load: 39.0 t ADT: 41,386
LA0878
FairOver: LITTLE COLEWA BAYOU
.26 MI WEST OF LA 2, West Carroll, LA
Built 1980 Load: 39.0 t ADT: 565
LA0585
FairOver: BAYOU
.6 MI EAST OF LA 17, West Carroll, LA
Built 1977 Load: 39.0 t ADT: 372
LA0585
FairOver: DEEP GULLEY
1.8 MI E OF LA 880, West Carroll, LA
Built 1977 Load: 39.0 t ADT: 372
LA0879
FairOver: BIG COLEWA BAYOU
2.77 MI EAST OF LA 585, West Carroll, LA
Built 1978 Load: 39.0 t ADT: 519
LA0879
FairOver: CREEK
2.95 MI EAST OF LA 585, West Carroll, LA
Built 1978 Load: 39.0 t ADT: 519
LA0879
FairOver: CREEK
4.1 MI EAST OF LA 585, West Carroll, LA
Built 1978 Load: 39.0 t ADT: 818
LA0879
FairOver: LITTLE COLEWA BAYOU
5.0 MI EAST OF LA 585, West Carroll, LA
Built 1978 Load: 39.0 t ADT: 1,129
LA0586
FairOver: PINE BAYOU
3.5 MI EAST OF LA 583, West Carroll, LA
Built 1975 Load: 39.0 t ADT: 242
LA0586
FairOver: COLEMAN BAYOU
6.1 MI EAST OF LA 583, West Carroll, LA
Built 1975 Load: 39.0 t ADT: 580
LA0421
FairOver: ALEXANDER CREEK E
1.5 M E of US 61&LA 421, West Feliciana, LA
Built 1971 Load: 39.0 t ADT: 739
LA0421
FairOver: DRY CREEK
4.16 MI S JCT US 61-LA421, West Feliciana, LA
Built 1982 Load: 39.0 t ADT: 739
LA0966
FairOver: THOMPSON CREEK TRIBUTARY
1.8 M E of LA 10&LA 955, West Feliciana, LA
Built 1982 Load: 39.0 t ADT: 857
US0167
FairOver: PORT DELUCE CREEK RELIEF
0.11 MI. SOUTH OF LA 501, Winn, LA
Built 1991 Load: 39.0 t ADT: 10,307
LA0499
FairOver: FLAT CREEK RELIEF
0.88 MI. NTH. JCT. LA126, Winn, LA
Built 1996 Load: 39.0 t ADT: 114
Bordino Crossing
FairOver: BAYOU DES GLAISES
0.01 MI. EAST OF LA 451, Avoyelles, LA
Built 1985 Load: 39.2 t ADT: 80
Pleasant Rd
FairOver: FOUR MILE BAYOU
1.8 MI N.E. OF LA 4, Bienville, LA
Built 1986 Load: 39.2 t ADT: 70
Bear Creek Rd
FairOver: BEAR CREEK ROAD
1.9 MI NORTH OF LA 507, Bienville, LA
Built 1986 Load: 39.2 t ADT: 150
COMMON ST
FairOver: KANSAS CITY SOUTHERN RR
0.1 MI N OF I-20, Caddo, LA
Built 1956 Load: 39.2 t ADT: 15,612
E. MCNEESE ST
FairOver: KAYOUCHE COULEE
0.96 MI. EAST OF LA 14, Calcasieu, LA
Built 2012 Load: 39.2 t ADT: 3,569
MCCOWN RD
FairOver: WEST FORK ENGLISH BAYOU
0.58 MI. EAST OF LA 397, Calcasieu, LA
Built 2012 Load: 39.2 t ADT: 1,856
MCCOWN RD
FairOver: WEST FORK ENGLISH BAYOU
2.54 MI. EAST OF LA 397, Calcasieu, LA
Built 2012 Load: 39.2 t ADT: 815
LA0175
FairOver: FRIERSON BRANCH
2.09 MI N OF I-49, De Soto, LA
Built 2014 Load: 39.2 t ADT: 1,142
Nash Rd
FairOver: CASTOR BAYOU
6.7 MI N. OF US 84, De Soto, LA
Built 1985 Load: 39.2 t ADT: 397
Red Bayou Rd
FairOver: DOLET BAYOU
0.46 MI EAST OF LA 177, De Soto, LA
Built 1986 Load: 39.2 t ADT: 30
US0167
FairOver: SHEPHERD CREEK
3.4 MI SOUTH OF US 80, Lincoln, LA
Built 2005 Load: 39.2 t ADT: 8,681
US0167
FairOver: SHEPHERD CREEK
3.4 MI SOUTH OF US 80, Lincoln, LA
Built 2005 Load: 39.2 t ADT: 5,350
HOLLY RIDGE RD
FairOver: CAMP BAYOU CANAL
1.7 MI S of LA 835, Morehouse, LA
Built 2000 Load: 39.2 t ADT: 250
FORESTRY ROAD
FairOver: REAUGAULIE CREEK
FORT POLK, Natchitoches, LA
Built 2005 Load: 39.2 t ADT: 40
Bullard Ave
FairOver: DRAINAGE CANAL
.65 MI SE OF LA 47, Orleans, LA
Built 1975 Load: 39.2 t
Bullard Ave
FairOver: DRAINAGE CANAL
0.7 MI SE OF LA 57, Orleans, LA
Built 1975 Load: 39.2 t
JONES RD
FairOver: CUT OFF BAYOU
JONES ROAD, Ouachita, LA
Built 1993 Load: 39.2 t ADT: 30
POLAND CROSSING
FairOver: BAYOU DARBONNE
4.2 MI S of LA 2, Union, LA
Built 2004 Load: 39.2 t ADT: 162
Lake Rd
FairOver: COOLEY CREEK
2.8M SOUTH OF LA 7, Webster, LA
Built 1993 Load: 39.2 t ADT: 320
Blue Run Rd
FairOver: COW CREEK
0.41 MI E. OF LA 3008, Webster, LA
Built 1985 Load: 39.2 t ADT: 86
Leggitt Crossing
FairOver: ALLIGATOR BAYOU
.3 MI. SE. HWY. 17, West Carroll, LA
Built 1984 Load: 39.2 t ADT: 425
Mclemore Rd
FairOver: HURRICANE CREEK
2 Mi. S. of LA 588, West Carroll, LA
Built 1984 Load: 39.2 t ADT: 80
N CARPENTERS ROAD
FairOver: FLAT CREEK
3.5 MI S OF LA 26, Allen, LA
Built 2019 Load: 39.5 t ADT: 232
CHERRY WITCHIE RD
FairOver: CHERRY WINCHE CREEK
0.6 MI. E of SAM CLOUD RD, Allen, LA
Built 2018 Load: 39.5 t ADT: 321
Showing 5,451-5,500 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 |