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
I0020
UnknownOver: I-20
.3 MI EAST OF LA 34, Ouachita, LA
ADT: 8,120
I0020
UnknownOver: CITY ST/ICG RR/OUACHITA
16.84 MI E LINCOLN PAR LN, Ouachita, LA
ADT: 4,400
I0020
UnknownOver: CITY ST/ICG RR/OUACHITA
16.84 MI E LINCOLN PAR LN, Ouachita, LA
ADT: 4,400
I0020
UnknownOver: I20;RAMP S2
1.6 MI EAST OF LA 34, Ouachita, LA
ADT: 8,760
I0020
UnknownOver: I20;RAMP N2
1.6 MI EAST OF LA 34, Ouachita, LA
ADT: 8,760
I0020
UnknownOver: I20;RAMP S3
1.7 MI EAST OF LA 34, Ouachita, LA
ADT: 8,760
I0020
UnknownOver: I20;RAMP N3
1.7 MI EAST OF LA 34, Ouachita, LA
ADT: 8,760
I0020
UnknownOver: I-20;RAMP N4
1.9 MI EAST OF LA 34, Ouachita, LA
ADT: 8,760
ORANGE ST
UnknownOver: I-20
.4 MI EAST OF LA 594, Ouachita, LA
ADT: 40,300
I0020
UnknownOver: I-20 OVER US 165
I-20 OVER US 165, Ouachita, LA
ADT: 44,400
I0020
UnknownOver: I-20 OVER US 165
I-20 OVER US 165, Ouachita, LA
ADT: 48,360
I0020 RAMP H
UnknownOver: US 165
I-20 RAMP OVER US 165, Ouachita, LA
ADT: 8,060
NUTLAND RD
UnknownOver: I-20
.5 MI EAST OF US 165, Ouachita, LA
ADT: 7,400
I0020
UnknownOver: OVERPASS OFF RAMP
21.41 MI E LINCOLN PAR LN, Ouachita, LA
ADT: 7,400
GARRETT RD
UnknownOver: I-20
1.7 MI EAST OF US 165, Ouachita, LA
ADT: 3,950
RUSSELL SAGE RD
UnknownOver: I-20
5.5 MI EAST OF US 165, Ouachita, LA
ADT: 3,950
LA0838
UnknownOver: CHENIERE CREEK
4.1 MI EAST OF LA 546, Ouachita, LA
LA0617
UnknownOver: LA 617 OVER I-20
LA 617 OVER I-20, Ouachita, LA
ADT: 28,200
LA0010
UnknownOver: MISSISSIPPI RIVER
6.5 MILES EAST OF LA1 BUS, Pointe Coupee, LA
ADT: 480
US0071
UnknownOver: LA 1208-3
US 71/LA 1208-3 INTG., Rapides, LA
ADT: 1,175
US0071
UnknownOver: US 167 SOUTH
0.18 MI. NORTH OF US 167, Rapides, LA
ADT: 2,150
US0165-B
UnknownOver: US 167
0.23 MI. NORTH OF LA 3144, Rapides, LA
ADT: 15,700
US0165
UnknownOver: US 71, ROCKY BAYOU
1.87 MI SOUTH JCT. US 167, Rapides, LA
ADT: 10,650
US0167
UnknownOver: US167 FR RDS, CITY ST, R
0.82 M. N. OF RED RIVER, Rapides, LA
ADT: 2,700
US0167
UnknownOver: US167 FR RDS, CITY ST, R
0.82 M. N. OF RED RIVER, Rapides, LA
ADT: 2,700
US0167
UnknownOver: US 167, MESSER ST, KCS R
1.5 M. N. OF RED RIVER, Rapides, LA
ADT: 4,640
US0167
UnknownOver: US 167, MESSER ST, KCS R
1.5 MI. N. OF RED RIVER, Rapides, LA
ADT: 4,640
US0167
UnknownOver: LA 28
US 167 / LA 28 INTG., Rapides, LA
ADT: 18,700
US0167
UnknownOver: LA 28
US 167 / LA INTG., Rapides, LA
ADT: 18,700
US0167
UnknownOver: US 165
US 167 / US 165 INTG., Rapides, LA
ADT: 38,500
US0167
UnknownOver: US 165
US 167 / US 165 INTG., Rapides, LA
ADT: 38,500
US0167
UnknownOver: US 71
US 167 / US 71 INTG., Rapides, LA
ADT: 3,800
US0167
UnknownOver: US 71
US 167 / US 71 INTG., Rapides, LA
ADT: 3,800
HICKORY HILL RD
UnknownOver: US 167
0.8 MI. NORTH OF US 71, Rapides, LA
ADT: 7,750
ATES RD
UnknownOver: US 167
2.5 MI. NORTH OF US 71, Rapides, LA
ADT: 7,750
LA0001
UnknownOver: LA-1 OVER I-49
0.6 MI SOUTH LA 1200, Rapides, LA
ADT: 16,400
LA0112
UnknownOver: I-49
I-49/LA 112 INTG., Rapides, LA
ADT: 14,600
LA0008
UnknownOver: I-49
I-49 / LA 8 INTG., Rapides, LA
ADT: 18,900
I0049
UnknownOver: I-49 OVER LA 181
2 MILES W OF CHENEYVILLE, Rapides, LA
ADT: 590
I0049
UnknownOver: I-49 OVER LA 181
2 MILES W OF CHENEYVILLE, Rapides, LA
ADT: 590
I0049
UnknownOver: I-49 OVER US 167
3 MI. SOUTH US 71, Rapides, LA
ADT: 1,030
I0049
UnknownOver: I-49 OVER US 167
3 MI. SOUTH OF US 71, Rapides, LA
ADT: 1,030
Forestry Rd
UnknownOver: FORESTRY ROAD OVER I-49
3.9M N OF LA 112 ON I-49, Rapides, LA
ADT: 14,600
I0049
UnknownOver: LA 3265
I-49 / LA 3265 INTG., Rapides, LA
ADT: 3,500
I0049
UnknownOver: LA 3265
I-49 / LA 3265 INTG., Rapides, LA
ADT: 3,500
I0049
UnknownOver: RAMPS, US 71, DITCH, RR
SOUTH I-49 / US 71 INTG., Rapides, LA
ADT: 1,460
I0049
UnknownOver: US 71, RAMPS, UP RR
6.91 MI. NORTH OF LA 3265, Rapides, LA
ADT: 1,460
I0049
UnknownOver: US 71, RAMPS, UP RR
6.91 MI. NORTH OF LA 3265, Rapides, LA
ADT: 1,460
I0049
UnknownOver: US 71, UP RR, RAMP A-1
6.91 MI. NORTH OF LA 3265, Rapides, LA
ADT: 1,460
I0049
UnknownOver: US 71, RAMPS A-3 & A-5
SOUTH I-49 / US 71 INTG., Rapides, LA
ADT: 1,460
Showing 601-650 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 |