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
PINE GROVE Ch RD
UnknownOver: I-20
1.69 MI EAST OF US 80, Bienville, LA
ADT: 32,500
BREWER RD
UnknownOver: I-20
2.5 MI EAST OF LA 154, Bienville, LA
ADT: 28,700
CRAWFORD RD
UnknownOver: I-20
0.5 MI N OF LA 798-2, Bienville, LA
ADT: 29,200
I0020
UnknownOver: RAMP J-2
0.2 MI E OF LA 1, Bossier, LA
ADT: 8,720
LA0157
UnknownOver: LA 157 OVER I-20
LA 157 OVER I-20, Bossier, LA
ADT: 6,000
LA0614
UnknownOver: LA 614 OVER I-20
LA 614 OVER I-20, Bossier, LA
ADT: 43,000
I0020
UnknownOver: RAMP J-2
0.2 MI EAST LA 1, Bossier, LA
ADT: 8,720
I0020
UnknownOver: 1-20, US 71, KCS RR
0.2 MI S OF I-20/US 71, Bossier, LA
ADT: 8,400
I0020
UnknownOver: US71&KCSRR
RAMPS FOR US 71, Bossier, LA
ADT: 1,680
I0020
UnknownOver: US71
1.8 MI NW OF LA 3032, Bossier, LA
ADT: 8,920
I0020
UnknownOver: US 71, KCS RR, RAMP SW
0.6 M E OF DIAMOND JACK B, Bossier, LA
ADT: 1,680
I0020
UnknownOver: US 71, KCSRR, RAMP SW
0.4 MI S OF LA 72, Bossier, LA
ADT: 8,920
I0020
UnknownOver: LA 72/OLD MINDEN RD.
1.1 MI NE OF D.JACKS BLVD, Bossier, LA
ADT: 43,740
I0020
UnknownOver: LA 72/OLD MINDEN RD.
0.8 MI W OF LA 3105, Bossier, LA
ADT: 43,740
I0020
UnknownOver: LA 3105/AIRLINE DR.
0.8 MI N OF LA 72, Bossier, LA
ADT: 36,300
I0020
UnknownOver: LA 3105/AIRLINE DR.
1.5 MI W OF LA 782-2, Bossier, LA
ADT: 36,300
I0020
UnknownOver: LA 72
0.5 Mi East of LA 3105, Bossier, LA
ADT: 11,800
I0020
UnknownOver: LA 72
1.0 MI W OF LA 782-2, Bossier, LA
ADT: 11,800
I0020
UnknownOver: MACKS BAYOU, LA 782-2
1.4 MI E OF LA 3105, Bossier, LA
ADT: 6,400
I0020
UnknownOver: MACKS BAYOU, LA 782-2
2.8 MI W OF I-220, Bossier, LA
ADT: 6,400
BODCAU STATION RD
UnknownOver: I-20
4.4 MI EAST OF LA 782-2, Bossier, LA
ADT: 55,200
I0020
UnknownOver: US 79/80
1.9 MI E OF LA 157, Bossier, LA
ADT: 33,840
I0020
UnknownOver: US 79/80
9.4 MI W OF US 371, Bossier, LA
ADT: 33,840
I0220
UnknownOver: RED RIVER/LA 3049/538
.01 MI EAST OF LA 3049, Bossier, LA
ADT: 44,700
I0220
UnknownOver: BENTON-ROAD/LA 3
3.3 MI E OF US 71, Bossier, LA
ADT: 20,940
I0220
UnknownOver: BENTON-ROAD/LA 3
1.0 MI W OF LA 3105, Bossier, LA
ADT: 20,940
I0220
UnknownOver: AIRLINE-DRIVE/LA 3105
0.9 MI E OF LA 3, Bossier, LA
ADT: 20,940
I0220
UnknownOver: AIRLINE-DRIVE/LA 3105
5.0 MI W OF US 79/80, Bossier, LA
ADT: 20,940
SHED RD
UnknownOver: I-220
2.8 MI EAST OF LA 3105, Bossier, LA
ADT: 14,069
SHED RD
UnknownOver: I-220
2.8 MI EAST OF LA 3105, Bossier, LA
ADT: 14,069
I0220
UnknownOver: US 79, 80
0.3 MI E OF US 79, Bossier, LA
ADT: 17,400
I0220
UnknownOver: US 79 & 80
0.9 MI N OF I-20, Bossier, LA
ADT: 18,180
I0220
UnknownOver: RAMP I-220(5B)-I-20(EB)
0.9 MI S OF US 79, Bossier, LA
ADT: 55,200
I0220
UnknownOver: RAMP I-20(EB)-I-220(NB)
0.4 MI S OF I-20, Bossier, LA
ADT: 55,200
US0071
UnknownOver: US 71 OVER I-49
7.20 MILES N. OF THE JCT, Caddo, LA
ADT: 5,131
LA0168
UnknownOver: LA 168 OVER I-49
1.11 MILES W. OF US 71, Caddo, LA
ADT: 10,262
IDA STATELINE RD
UnknownOver: I-49
0.8 MI. W. OF US 71, Caddo, LA
ADT: 10,262
MUNNERLYN CHAPEL
UnknownOver: I0049
1.3 MILES WEST OF JCT OF, Caddo, LA
ADT: 10,262
I0049
UnknownOver: LA 1
I-49 NORTH BOUND AT LA.1, Caddo, LA
ADT: 22,300
I0049
UnknownOver: LA 1
I-49 SB OVER LA 1, Caddo, LA
ADT: 22,300
I0049
UnknownOver: LA 3194
I-49 AT LA 3194, Caddo, LA
ADT: 9,900
I0049
UnknownOver: LA 3194
I-49 AT LA 3194, Caddo, LA
ADT: 9,900
I0049
UnknownOver: I-220
I-49 @ I-220 INTERCHANGE, Caddo, LA
ADT: 32,000
I0049
UnknownOver: I-220
I-49 @ I-220 INTERCHANGE, Caddo, LA
ADT: 2,287
LA0538
UnknownOver: LA 538 OVER I-49
1.81 MI WEST OF US 71, Caddo, LA
ADT: 1,470
ALBANY RD
UnknownOver: ALBANY RD OVER I-49
1.45 MI N OF LA 538, Caddo, LA
ADT: 10,262
I0049
UnknownOver: LA 173
OVER LA 173, Caddo, LA
ADT: 880
I0049
UnknownOver: LA 173
I-49 OVER LA173, Caddo, LA
ADT: 880
LA0530
UnknownOver: I-49
2.73 M. W. OF US 71, Caddo, LA
ADT: 10,262
I0049
UnknownOver: US 71
I-49 / US 71 INTG., Caddo, LA
ADT: 8,483
Showing 51-100 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 |