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
LA0015
FairOver: PINE BAYOU CANAL
.2 MI NORTH OF LA 857, Franklin, LA
Built 1988 Load: 39.0 t ADT: 9,661
LA0135
FairOver: PRICKET BAYOU
1.20 M N of LA 4, Franklin, LA
Built 1984 Load: 39.0 t ADT: 698
LA0857
FairOver: TURKEY CREEK CUTOFF
.84 MI EAST OF US 425, Franklin, LA
Built 1984 Load: 39.0 t ADT: 1,833
LA0562
FairOver: CREEK
.35 MI EAST OF LA 15, Franklin, LA
Built 1978 Load: 39.0 t ADT: 90
LA0562
FairOver: DEER CREEK
1.5 MI EAST OF LA 15, Franklin, LA
Built 1978 Load: 39.0 t ADT: 90
LA0562
FairOver: DEER CREEK CUT-OFF
2.8 MI EAST OF LA 15, Franklin, LA
Built 1978 Load: 39.0 t ADT: 240
LA0875
FairOver: CREEK
.6 MI WEST OF LA 562, Franklin, LA
Built 1974 Load: 39.0 t ADT: 44
LA0866
FairOver: DRAINAGE CANAL
.9 MI EAST OF LA 3210, Franklin, LA
Built 1984 Load: 39.0 t ADT: 165
LA0572
FairOver: DEER CREEK
.17 MI EAST OF LA 4, Franklin, LA
Built 1974 Load: 39.0 t ADT: 265
LA3201
FairOver: WINNSBORO DRAINAGE CANAL
0.25 M W of LA 865, Franklin, LA
Built 1982 Load: 39.0 t ADT: 3,772
LA0524
FairOver: JESSE BRANCH
2.0 MI WEST OF US 165, Grant, LA
Built 1985 Load: 39.0 t ADT: 14
LA0014
FairOver: POUFETTE CANAL
4.15 MI EAST OF LA 330, Iberia, LA
Built 1988 Load: 39.0 t ADT: 12,347
LA0014
FairOver: POUFETTE CANAL
2.6 Mi W of La 676, Iberia, LA
Built 1988 Load: 39.0 t ADT: 8,404
LA0977
FairOver: B.GROSSE TETE
LA0977, Iberville, LA
Built 1980 Load: 39.0 t ADT: 1,132
I0010
FairOver: I-10 RAMP
0.3 M E of LA 975, Iberville, LA
Built 1972 Load: 39.0 t ADT: 668
LA0034
FairOver: DRY CREEK
.14 MI SOUTH OF LA 801, Jackson, LA
Built 1972 Load: 39.0 t ADT: 1,370
LA0556
FairOver: NEALY BRANCH
.70 MI WEST OF LA 144, Jackson, LA
Built 1970 Load: 39.0 t ADT: 376
LA0556
FairOver: POLE BRIDGE CREEK
2.21 MI WEST OF LA 144, Jackson, LA
Built 1970 Load: 39.0 t ADT: 376
LA0147
FairOver: CREEK
2.03 MI EAST OF LA 505, Jackson, LA
Built 1977 Load: 39.0 t ADT: 454
LA0147
FairOver: CREEK
2.09 MI EAST OF LA 505, Jackson, LA
Built 1977 Load: 39.0 t ADT: 454
LA0147
FairOver: FLAT CREEK
6.28 MI EAST OF LA 505, Jackson, LA
Built 1977 Load: 39.0 t ADT: 454
LA0505
FairOver: DRY CREEK
.9 MI EAST OF LA 809, Jackson, LA
Built 1975 Load: 39.0 t ADT: 759
LA0505
FairOver: HALFWAY CREEK
1.0 MI EAST OF LA 147, Jackson, LA
Built 1977 Load: 39.0 t ADT: 759
LA8133
FairOver: L DUGDEMONA RIVER
1.71 MI EAST OF US 167, Jackson, LA
Built 1973 Load: 39.0 t ADT: 434
LA0811
FairOver: WILLOW CREEK
.4 MI EAST OF LA 542, Jackson, LA
Built 1980 Load: 39.0 t ADT: 455
LA0811
FairOver: CREEK
1.1 MI EAST OF LA 542, Jackson, LA
Built 1980 Load: 39.0 t ADT: 455
I0010
FairOver: CANAL NO. 3
6.8 MI EAST OF LA 49, Jefferson, LA
Built 1966 Load: 39.0 t ADT: 9,044
LA0092
FairOver: CREEK
0.7 MI WEST OF LA 733, Lafayette, LA
Built 1973 Load: 39.0 t ADT: 738
I0010
FairOver: FRANCOIS COULEE
1.1 Mi. East of I-49., Lafayette, LA
Built 1970 Load: 39.0 t ADT: 56,748
I0010
FairOver: FRANCOIS COULEE
5.4 Mi. West of LA 328, Lafayette, LA
Built 1970 Load: 39.0 t ADT: 5,698
LA0307
FairOver: BAYOU ROND POMPON
14.5 MI NORTH OF LA 182, Lafourche, LA
Built 1976 Load: 39.0 t ADT: 2,271
LA0772
FairOver: GREENS CREEK
4.00 M E of US 84, LaSalle, LA
Built 1983 Load: 39.0 t ADT: 116
LA0772
FairOver: TROUT CREEK RELIEF
0.75 M N of LA 8, LaSalle, LA
Built 1982 Load: 39.0 t ADT: 396
LA0772
FairOver: TROUT CREEK
0.75 M N of LA 8, LaSalle, LA
Built 1982 Load: 39.0 t ADT: 396
LA0126
FairOver: CREEK
3.1 MI NORTH OF LA 124, LaSalle, LA
Built 1978 Load: 39.0 t ADT: 117
LA0460
FairOver: GRAY CREEK
4.4 MI EAST OF LA 127, LaSalle, LA
Built 1974 Load: 39.0 t ADT: 776
LA0459
FairOver: HAIR'S CREEK
1.60 M N of US 84, LaSalle, LA
Built 1983 Load: 39.0 t ADT: 1,160
LA0459
FairOver: BRUSHLEY CREEK
10.1 MI NORTH OS US 84, LaSalle, LA
Built 1981 Load: 39.0 t ADT: 1,160
LA0770
FairOver: LITTLE CHICKSAW
1.4 MI WEST OF LA 127, LaSalle, LA
Built 1984 Load: 39.0 t ADT: 129
LA0773
FairOver: CREEK
.5 MI NORTH OF LA 774, LaSalle, LA
Built 1981 Load: 39.0 t ADT: 1,537
LA3071
FairOver: ROCKY CREEK
2.9 MI EAST OF LA 503, LaSalle, LA
Built 1979 Load: 39.0 t ADT: 429
LA3259
FairOver: CREEK
.7 MI SOUTH OF LA 125, LaSalle, LA
Built 1977 Load: 39.0 t ADT: 1,236
LA0151
FairOver: CREEK
.8 MI EAST OF LA 151, Lincoln, LA
Built 1976 Load: 39.0 t ADT: 2,216
LA3005
FairOver: MADDEN CREEK BR.
3.17 MI WEST OF US 80, Lincoln, LA
Built 1977 Load: 39.0 t ADT: 917
LA0556
FairOver: LITTLE CHOUDRANT
.29 MI SOUTH OF LA 145, Lincoln, LA
Built 1974 Load: 39.0 t ADT: 494
LA0820
FairOver: CREEK
.54 MI SOUTH OF LA 33, Lincoln, LA
Built 1979 Load: 39.0 t ADT: 2,230
LA0822
FairOver: STONE CREEK RELIEF
1.3 MI E of LA 33, Lincoln, LA
Built 1983 Load: 39.0 t ADT: 184
LA0822
FairOver: STOWE CREEK
1.41 MI EAST OF LA 33, Lincoln, LA
Built 1983 Load: 39.0 t ADT: 184
LA0822
FairOver: CYPRESS CREEK
4.53 MI E of LA 33, Lincoln, LA
Built 1983 Load: 39.0 t ADT: 184
LA0821
FairOver: CREEK
2.32 MI EAST OF LA 33, Lincoln, LA
Built 1983 Load: 39.0 t ADT: 1,072
Showing 5,351-5,400 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 |