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
LAPALCO BLVD
GoodOver: MAIN CANAL
0.6 MILES FROM SEGNETTE B, Jefferson, LA
Built 1976 Load: 31.8 t ADT: 1,000
Louisiana Ave.
GoodOver: COULEE
.3 mi N of I-10, Lafayette, LA
Built 2010 Load: 31.8 t ADT: 1,967
Indian Bluff Rd
GoodOver: CREEK
LOG MI. 1.22 FR. 70 - ODE, LaSalle, LA
Built 1998 Load: 31.8 t ADT: 70
US0190
GoodOver: LIT NATALBANY R.
US0190, Livingston, LA
Built 1950 Load: 31.8 t ADT: 8,928
I0049
GoodOver: DITCH
SOUTH I-49 / US 71 INTG., Rapides, LA
Built 1992 Load: 31.8 t ADT: 15,642
I0049
GoodOver: UP RR
BROADWAY INTG., Rapides, LA
Built 1994 Load: 31.8 t ADT: 15,642
I0049
GoodOver: HILL BAYOU
3.09 MI. NORTH OF LA 3250, Rapides, LA
Built 1995 Load: 31.8 t ADT: 20,561
I0049
GoodOver: INDUSTRIAL PARK RD &UPRR
2.64 M.S. LA 498, Rapides, LA
Built 1992 Load: 31.8 t ADT: 42,770
I0049
GoodOver: INDUSTRIAL PARK RD &UPRR
2.64 M.S. LA 498, Rapides, LA
Built 1992 Load: 31.8 t ADT: 20,561
I0049
GoodOver: ROAD, RR, LAKE, CONVEYOR
3.0 MI. N OF LA1200, Rapides, LA
Built 1982 Load: 31.8 t ADT: 11,969
US0171
GoodOver: BAYOU SAN PATRICIO
2.6 MI NORTH LA 483, Sabine, LA
Built 2006 Load: 31.8 t ADT: 4,790
I0310
GoodOver: I310 SB TO US90
0.40 MI. N. OF US 90, St. Charles, LA
Built 1986 Load: 31.8 t ADT: 40,204
Hickory Rd.
GoodOver: BAYOU BOURBEUX
0.53 Mi N of LA 93, St. Landry, LA
Built 1997 Load: 31.8 t ADT: 400
LA0686
GoodOver: CREEK
2.0 MI NORTH OF LA 347, St. Martin, LA
Built 2014 Load: 31.8 t ADT: 3,212
LA0094
GoodOver: BAYOU TECHE
0.1 MI WEST OF LA 31, St. Martin, LA
Built 1980 Load: 31.8 t ADT: 18,293
US0090/SERVICE RD
GoodOver: COULEE
0.9 MI WEST OF LA 182, St. Mary, LA
Built 1975 Load: 31.8 t ADT: 162
LA0433
GoodOver: BAYOU LIBERTY
2.48 MILES SOUTH US 190, St. Tammany, LA
Built 2010 Load: 31.8 t ADT: 9,174
N. CSWY OFF RMP SB
GoodOver: MONROE Str OVERPASS
0.4 MI N OF CAUSEWAY BR., St. Tammany, LA
Built 1993 Load: 31.8 t ADT: 500
W. Hoffman Rd
GoodOver: PONCHATOULA CREEK
2 MI NW/EX LA22 W HOFFMAN, Tangipahoa, LA
Built 1998 Load: 31.8 t ADT: 717
Dudley Rd
GoodOver: PARC PERDU BAYOU
0.9 Mi N of Germain Rd, Vermilion, LA
Built 2011 Load: 31.8 t ADT: 966
LA0028
GoodOver: WEST FORK CREEK
3 MI. WEST OF JCT. LA 121, Vernon, LA
Built 2005 Load: 31.8 t ADT: 6,456
I0049
GoodOver: KELLY BAYOU
I-49 / LA 2 INTG., Caddo, LA
Built 2014 Load: 32.1 t ADT: 8,115
I0049
GoodOver: KELLY BAYOU
3.5 M. N. OF US 71, Caddo, LA
Built 2014 Load: 32.1 t ADT: 8,115
I0049
GoodOver: T & P R/R
1.40M NORTH OF LA 526 INT, Caddo, LA
Built 1991 Load: 32.1 t ADT: 87,567
Stonewall Rd
GoodOver: KEATCHIE BAYOU
0.3 MI E OF CADDO PH RD 3, Caddo, LA
Built 1999 Load: 32.1 t ADT: 152
Mcknight Rd
GoodOver: HURRICANE CREEK
0.5 M E of LA 547, Caldwell, LA
Built 2013 Load: 32.1 t ADT: 15
Catahoula Ch Rd
GoodOver: Hooter CREEK
.425M N of Colum Har Rd, Catahoula, LA
Built 1987 Load: 32.1 t ADT: 50
Quail Dr
GoodOver: DAWSON CREEK
QUAIL DR., East Baton Rouge, LA
Built 1984 Load: 32.1 t ADT: 200
Murphy Rd
GoodOver: SAMS BAYOU
0.24 M.E. OF ALFORD RD., Grant, LA
Built 1985 Load: 32.1 t ADT: 154
Dartigo Rd
GoodOver: CAMP CREEK
2.35 M. N. OF US 71, Grant, LA
Built 1985 Load: 32.1 t ADT: 140
US0167
GoodOver: CREEK
14.6 MI NORTH OF WINN PAR, Jackson, LA
Built 2011 Load: 32.1 t ADT: 8,018
Little Creek Rd
GoodOver: LITTLE CREEK
1.0 M SE of Melody Acres, LaSalle, LA
Built 1984 Load: 32.1 t ADT: 50
Ebeneezer Tap
GoodOver: CREEK
0.5 M S of LA 500, LaSalle, LA
Built 1984 Load: 32.1 t ADT: 110
Taylor Chapel Rd
GoodOver: MILL CREEK
0.1 M W of LA 127, LaSalle, LA
Built 1984 Load: 32.1 t ADT: 160
Roark Rd
GoodOver: SALTY CREEK
.46 LOG MI FR. 413 TO 420, LaSalle, LA
Built 2001 Load: 32.1 t ADT: 50
LA0623
GoodOver: FR. RD, KCS RR, UP RR
0.41 MI. EAST OF LA 3225, Rapides, LA
Built 2011 Load: 32.1 t ADT: 4,516
LA0112
GoodOver: SANDY BRANCH
2.9 MILES NORTH OF LA 113, Rapides, LA
Built 2015 Load: 32.1 t ADT: 1,197
Ten Mile Rd
GoodOver: TEN MILE CREEK
0.5 MILE WEST OF LA 462, Rapides, LA
Built 2001 Load: 32.1 t ADT: 300
PISGAH CHURCH LOOP
GoodOver: HORSEPEN CREEK
1.58 M S OF N JCT. LA 191, Sabine, LA
Built 1985 Load: 32.1 t ADT: 90
CASSEL LOOP RD
GoodOver: TEN ACRE CREEK
0.1 MI. EAST OF LA 191, Sabine, LA
Built 2006 Load: 32.1 t ADT: 100
LA0004
GoodOver: TENSAS RIVER @ DICKIES
BEGINNING OF CONTROL SECT, Tensas, LA
Built 2008 Load: 32.1 t ADT: 1,082
Jude Rd
GoodOver: BAYOU TIGRE
0.9 MI S OF LA 14, Vermilion, LA
Built 2010 Load: 32.1 t ADT: 1,832
Junius Rd
GoodOver: GALLEQUE COULEE
1.5 Mi W of La 335, Vermilion, LA
Built 1986 Load: 32.1 t ADT: 345
WELCOME CEMETERY
GoodOver: MENACE CREEK
0.59 M. N. OF LA 8 NEAR S, Vernon, LA
Built 1984 Load: 32.1 t ADT: 220
Jake Creel
GoodOver: WALNUT CREEK
0.23 MI. EAST OF LA 34, Winn, LA
Built 1984 Load: 32.1 t ADT: 90
Deloy Green
GoodOver: CYPRESS CREEK
0.9 MI. EAST OF LA 505, Winn, LA
Built 1984 Load: 32.1 t ADT: 72
LA1115
GoodOver: CREEK
0.52 MI EAST OF LA 91, Acadia, LA
Built 2014 Load: 32.4 t ADT: 377
Lafosse Rd.
GoodOver: Drain
1.33 MI E. OF LA 92, Acadia, LA
Built 2012 Load: 32.4 t ADT: 48
LA0013
GoodOver: CREEK
4.7 MI N of LA 1121, Acadia, LA
Built 1960 Load: 32.4 t ADT: 5,380
LA0097
GoodOver: CREEK
0.1 MI SOUTH OF LA 3068, Acadia, LA
Built 1956 Load: 32.4 t ADT: 1,175
Showing 7,801-7,850 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 |