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
PLAZA DR.
GoodOver: 20 ARPENT CANAL
0.4 MI N OF LA 39, St. Bernard, LA
Built 2014 Load: 41.8 t ADT: 400
Placide Rd
GoodOver: Coulee
0.2 Mi E. of US167, Vermilion, LA
Built 2020 Load: 42.0 t ADT: 749
Nation Road
GoodOver: Coulee Duralde
0.5 Mi S of LA 35, Acadia, LA
Built 2019 Load: 42.1 t ADT: 336
US0171
GoodOver: BARNES CREEK
7.0 MI SOUTH OF LA 394, Beauregard, LA
Built 2007 Load: 42.1 t ADT: 8,021
I0049
GoodOver: SWIFT BAYOU CANAL
0.11 M. N. OF LA 530, Caddo, LA
Built 2013 Load: 42.1 t ADT: 29,542
E Ratcliff Road
GoodOver: Billy's Bayou
2.4 Mi. S. of US 425, Catahoula, LA
Built 2018 Load: 42.1 t ADT: 190
Ratcliff Road
GoodOver: Duck Creek
3.38 Mi. S. of US 425, Catahoula, LA
Built 2018 Load: 42.1 t ADT: 172
NORTH FLANNERY RD
GoodOver: LIVELY BAYOU
0.6 MI N OF US 190, East Baton Rouge, LA
Built 2019 Load: 42.1 t ADT: 14,900
Lower Zachary Rd
GoodOver: Drainage Bayou
0.185 Mi. W. of LA 19, East Baton Rouge, LA
Built 2019 Load: 42.1 t ADT: 2,000
Carruth Rd
GoodOver: COMITE CREEK
3.1 MI EAST OF WILSON, LA, East Feliciana, LA
Built 1985 Load: 42.1 t ADT: 110
Fuselier Rd
GoodOver: GRAND LOUIS BAYOU
0.01 MI. N. OF LA 1160, Evangeline, LA
Built 2016 Load: 42.1 t ADT: 140
BUSH ROAD
GoodOver: DEER CREEK
1.69 MI N OF LA 863, Franklin, LA
Built 2017 Load: 42.1 t ADT: 150
ERNEST ROAD
GoodOver: DEER CREEK
1.5 MI W OF LA 4, Franklin, LA
Built 2017 Load: 42.1 t ADT: 125
FARENZIE RD
GoodOver: SUGARHOUSE BAYOU
0.16 MI. NORTH OF LA 8, Grant, LA
Built 2006 Load: 42.1 t ADT: 350
BY GROSSE TETE XNG
GoodOver: BAYOU GROSS TETE
0.02 Mi. E. of LA 77, Iberville, LA
Built 2007 Load: 42.1 t ADT: 220
I0012
GoodOver: AMITE RIVER
2.0 MILES WEST OF LA 3002, Livingston, LA
Built 2012 Load: 42.1 t ADT: 55,700
LA0478
GoodOver: BAYOU PROVENCAL
7.04 M. EAST OF LA 117, Natchitoches, LA
Built 2011 Load: 42.1 t ADT: 479
Bumgardner Rd
GoodOver: CYPRESS CREEK
1.0 M. E. OF LA 153, Natchitoches, LA
Built 2004 Load: 42.1 t ADT: 52
CAPLES RD
GoodOver: SOUTH CHENIERE CREEK
4 MI E CADEVILLE, Ouachita, LA
Built 1984 Load: 42.1 t ADT: 270
LAKEWOODS DR
GoodOver: PATRICK BAYOU
0.1 MI W of LA 139, Ouachita, LA
Built 1993 Load: 42.1 t ADT: 1,127
Chalona Dr
GoodOver: 20 ARPENT CANAL
0.4 Mi. N. of LA 39, St. Bernard, LA
Built 2019 Load: 42.1 t ADT: 220
David Allen Rd
GoodOver: DARLING CREEK
3.10 MI NORTH OF LA.38 ON, St. Helena, LA
Built 2015 Load: 42.1 t
Bayou Gerimond Rd
GoodOver: Chenevert Bayou
4.75 MI S OF US 190, St. Landry, LA
Built 2017 Load: 42.1 t ADT: 150
Wardline Rd
GoodOver: NATALBANY RIVER RELIEF
4MI N/W OR RT 190 EXIT, Tangipahoa, LA
Built 1998 Load: 42.1 t ADT: 1,259
Dunbar Rd
GoodOver: VIDAL BAYOU
0.02 MI S OF LA 603, Tensas, LA
Built 2014 Load: 42.1 t ADT: 25
LA3087
GoodOver: BAYOU TERRIBONE
LA 3087 BETWEEN JCT LA 24, Terrebonne, LA
Built 2013 Load: 42.1 t ADT: 13,617
US0171
GoodOver: BAYOU ZOURIE
1.1 NORTH OF LA 10, Vernon, LA
Built 2012 Load: 42.1 t ADT: 12,466
Lawrence Cr Rd
GoodOver: Lawrence Creek
1.77 Mi. E. of La 430, Washington, LA
Built 2018 Load: 42.1 t ADT: 572
PLEASANT HILL RD
GoodOver: LITTLE SILVER CREEK
1.17 MI N OF 1056, Washington, LA
Built 2019 Load: 42.1 t ADT: 310
PERCY BURNS RD
GoodOver: LITTLE CROOKED CREEK
0.45 MI S OF LA 157, Webster, LA
Built 2019 Load: 42.1 t ADT: 700
LA1177
GoodOver: BAYOU BOEUF
1.63 MILES WEST OF SOUTH, Avoyelles, LA
Built 2015 Load: 42.4 t ADT: 387
B. Natchitoches Cr
GoodOver: BAYOU NATCHITOCHES
10 MI E OF LA 451, Avoyelles, LA
Built 2017 Load: 42.4 t ADT: 150
Grassy Lake Rd
GoodOver: FOOL'S BAY
10 MI E OF LA 451, Avoyelles, LA
Built 2017 Load: 42.4 t ADT: 20
YACKEY RD
GoodOver: COCODRIE BAYOU
3.38 MI W OF LA 15, Concordia, LA
Built 2016 Load: 42.4 t ADT: 50
E Flanacher Rd
GoodOver: DRAINAGE BAYOU
1.2 MI E OF US 61, East Baton Rouge, LA
Built 2018 Load: 42.4 t ADT: 994
Carruth Rd
GoodOver: Drainage Cr
2.8 Mi. E of LA 19, East Feliciana, LA
Built 2022 Load: 42.4 t ADT: 386
Newsom Rd
GoodOver: MCQUINNEY BAYOU
1.0 MILE SOUTH OF HIGHWAY, East Feliciana, LA
Built 2012 Load: 42.4 t ADT: 72
LA0004
GoodOver: DEER CREEK
1.6 MILES SOUTHEAST OF LA, Franklin, LA
Built 2016 Load: 42.4 t ADT: 3,423
David Duboin Rd
GoodOver: Commercial Canal
2.1 Mi. E. of La 329, Iberia, LA
Built 2013 Load: 42.4 t ADT: 1,184
NORTHEAST ST
GoodOver: DRAIN TO LITTLE DUGDEMON
1.0 MILES EAST OF US 167, Jackson, LA
Built 2011 Load: 42.4 t
FILMORE AVE
GoodOver: LONDON AVE CANAL
0.01 MI E OF PRATT DRIVE, Orleans, LA
Built 2004 Load: 42.4 t
Cheneyville Cutoff
GoodOver: DRAINAGE CANAL
3.7 MI. W OF LA 1, Rapides, LA
Built 2012 Load: 42.4 t ADT: 543
US0071
GoodOver: SPILLWAY CANAL
6.57 MI NORTH OF US 190, St. Landry, LA
Built 2004 Load: 42.4 t ADT: 1,695
Esterbrook Rd
GoodOver: SELSERS CREEK
4 MI. S.E. LA 3158 EXIT, Tangipahoa, LA
Built 1986 Load: 42.4 t ADT: 1,899
Yokum Rd
GoodOver: PONCHATOULA CREEK
2.6 MI N.E. OF JCT. 51&22, Tangipahoa, LA
Built 1986 Load: 42.4 t ADT: 1,008
Cox Rd
GoodOver: FRENCH CREEK
1.0 MI. S. OF LA 160, Webster, LA
Built 2007 Load: 42.4 t ADT: 86
Island Rd
GoodOver: SCOTT CREEK
3.4 MI W OF US 61, West Feliciana, LA
Built 2016 Load: 42.4 t ADT: 85
Peterson Rd
GoodOver: Spring Creek
0.9 Mi E of LA 421, West Feliciana, LA
Built 2020 Load: 42.4 t ADT: 200
LA0127
GoodOver: CREEK
8.11 MI. NW CALDWELL LINE, Winn, LA
Built 2010 Load: 42.4 t ADT: 183
US0090
GoodOver: CANAL
0.2 MI EAST OF LA 1124, Acadia, LA
Built 1992 Load: 42.6 t ADT: 2,899
Showing 10,251-10,300 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 |