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
LA0117
FairOver: LIBERTY CREEK
1.16 MI. NORTH OF LA 8, Vernon, LA
Built 1954 Load: 28.1 t ADT: 1,513
LA0066
FairOver: LITTLE BAYOU SARA
LA0066, West Feliciana, LA
Built 1961 Load: 28.1 t ADT: 1,677
Leger Rd
FairOver: LYONS POINT GULLY
0.91M FROM LA 3007, Acadia, LA
Built 1988 Load: 28.2 t ADT: 48
Atkinson Rd.
FairOver: Lyons Point Gully
0.5 Mi. S. of La 3007, Acadia, LA
Built 1988 Load: 28.2 t ADT: 240
Madison Rd.
FairOver: Lyons Point Gully
0.25 Mi E of La 3007, Acadia, LA
Built 1988 Load: 28.2 t ADT: 32
Ebenezer Rd
FairOver: Lyons Point Gully
0.7 Mi. N. of LA 3007, Acadia, LA
Built 1989 Load: 28.2 t ADT: 1,296
US0165
FairOver: KINDER DITCH
6.6 MI N of LA-102, Allen, LA
Built 1932 Load: 28.2 t ADT: 11,886
LA0114
FairOver: BAYOU DES GLAISES
0.76 M. W. OF JCT LA 451, Avoyelles, LA
Built 2009 Load: 28.2 t ADT: 3,984
Maple St.
FairOver: SALINE BAYOU TRIB
0.4 M SOUTH OF US 80, Bienville, LA
Built 1991 Load: 28.2 t ADT: 350
C. C. Sandidge Rd
FairOver: Spring Branch
.02 MI E OF FV POINT RD., Bossier, LA
Built 1999 Load: 28.2 t ADT: 400
Linwood Ave
FairOver: CYPRESS BAYOU
3.7 MI SOUTH OF LA 526, Caddo, LA
Built 1987 Load: 28.2 t ADT: 4,925
JEFFERSON-PAIGE RD
FairOver: JEFERSON PAGE,TRY CROSS
1.5 MI. WEST OF U.S., Caddo, LA
Built 1976 Load: 28.2 t ADT: 5,824
ANTHONY FERRY RD
FairOver: COON GULLY
0.2 M N of LA 379, Calcasieu, LA
Built 1973 Load: 28.2 t ADT: 1,154
US0165
FairOver: OUACHITA RIVER @ COLUMBI
0.48 M S of LA 4, Caldwell, LA
Built 2007 Load: 28.2 t ADT: 13,633
FDR 902Bridge
FairOver: GREER CREEK
1.0 MI. OF LA. 9, Claiborne, LA
Built 1973 Load: 28.2 t ADT: 40
Friendship Rd
FairOver: CALDWELL B.
3.3 MI SE OF LA 17S, De Soto, LA
Built 1985 Load: 28.2 t ADT: 200
Lake Sherwood Ave
FairOver: DRAIN CANAL
0.5 M N OF COURSEY BLVD, East Baton Rouge, LA
Built 1972 Load: 28.2 t ADT: 1,312
LA0155
FairOver: CREEK
1.1 Mi. E of US 167, Jackson, LA
Built 1971 Load: 28.2 t ADT: 1,605
US0090
FairOver: MISSISSIPPI RIVER
.01 MI SOUTH OF LA 48, Jefferson, LA
Built 1936 Load: 28.2 t ADT: 55,210
MAGNOLIA DR
FairOver: KEYHOLE CANAL
.15 SO OF W.B. EXPWY., Jefferson, LA
Built 1990 Load: 28.2 t
E. MAIN ST
FairOver: YANKEE BAYOU
0.06 MI SE OF LA 308, Lafourche, LA
Built 1971 Load: 28.2 t ADT: 152
E. MAIN ST
FairOver: YANKEE BAYOU
0.06 MI S. OF LA 308, Lafourche, LA
Built 1971 Load: 28.2 t ADT: 152
US0190
FairOver: BIG BRANCH
2.7 M W OF LA 441, Livingston, LA
Built 1932 Load: 28.2 t ADT: 7,126
GREEN LANE
FairOver: BAYOU BONNE IDEE
0.5 MI S of LA 599, Morehouse, LA
Built 1995 Load: 28.2 t ADT: 150
LA0153
FairOver: CABIN CREEK
7.66 MI. N OF INT LA9, Natchitoches, LA
Built 1977 Load: 28.2 t ADT: 609
WINNFIELD RD
FairOver: WILDERS CREEK
3 MILES NE OF CADEVILLE, Ouachita, LA
Built 1994 Load: 28.2 t ADT: 197
HWY 11/Par Rd 11
FairOver: DOULLUT CANAL
0.6 MILES SOUTH OF OAK LA, Plaquemines, LA
Built 2013 Load: 28.2 t ADT: 3,700
US0080
FairOver: DRAIN
1.1 MI EAST OF LA 583, Richland, LA
Built 1953 Load: 28.2 t ADT: 1,451
LA0017
FairOver: RESERVOIR
.28 MI NORTH OF LA 854, Richland, LA
Built 2000 Load: 28.2 t ADT: 3,890
LA0118
FairOver: DRY CREEK
14.06 MI. EAST OF US 171, Sabine, LA
Built 1985 Load: 28.2 t ADT: 1,471
THERIOT VOISIN BR
FairOver: DU LARGE BAYOU
0001 LOG MI FROM IN, Terrebonne, LA
Built 2011 Load: 28.2 t ADT: 1,156
CEDAR GROVE RD
FairOver: PELTON BAYOU
0.01 MI N OF LA 57, Terrebonne, LA
Built 1960 Load: 28.2 t ADT: 58
PILGRIM REST CH RD
FairOver: MILL CREEK
5.8 MI. NW INT. 209, Union, LA
Built 1984 Load: 28.2 t ADT: 366
Bonner Rd
FairOver: COLEWA BAYOU
2.5 MI N of LA 2, West Carroll, LA
Built 1999 Load: 28.2 t ADT: 560
Wiley Rd.
FairOver: Turkey Creek
0.34 Mi W of Glenmora Rd, Evangeline, LA
Built 2007 Load: 28.3 t ADT: 12
LA0083
FairOver: BAYOU BLUE
8 MI NORTH OF LA 319, Iberia, LA
Built 1951 Load: 28.3 t ADT: 3,078
LA0431
FairOver: SNELL'S CANAL
0.17 MI. N. OF LA 621, Ascension, LA
Built 1997 Load: 28.5 t ADT: 9,608
Rondinaud Ln
FairOver: BAYOU LAFOURCHE
DONALDSONVILLE, Ascension, LA
Built 1970 Load: 28.5 t ADT: 150
LA0402
FairOver: BAYOU LAFOURCHE @ MUNSON
LA0402, Assumption, LA
Built 1976 Load: 28.5 t ADT: 551
CARLYSS DR
FairOver: DRAIN
0.8 MI W of LA 1256, Calcasieu, LA
Built 2000 Load: 28.5 t ADT: 1,560
SWEETWATER RD
FairOver: DRAIN TO CYPRESS BAYOU
1.6 MI. SW. INT. 336, Jackson, LA
Built 1985 Load: 28.5 t ADT: 380
SEGNETTE BLVD
FairOver: MAIN CANAL
0.7 MI S OF US 90 BUS., Jefferson, LA
Built 1986 Load: 28.5 t
LIVE OAK BLVD
FairOver: CRAWFISH CANAL
1.0 M NW OF US 90, Jefferson, LA
Built 1989 Load: 28.5 t ADT: 2,000
US0090
FairOver: VERMILION RIVER
0.3 MI S. OF US 90BUS, Lafayette, LA
Built 1965 Load: 28.5 t ADT: 62,432
US0090
FairOver: VERMILION RIVER
2.34 Mi N of LA 339, Lafayette, LA
Built 1965 Load: 28.5 t ADT: 26,010
I0020
FairOver: US165 NB RAMP FROM I20 W
I-20/US 165 INTERCHANGE, Ouachita, LA
Built 1966 Load: 28.5 t ADT: 15,642
ANTIOCH CHURCH RD
FairOver: SOUTH CHENIERE CR
0.5 MI SOUTH of LA 34, Ouachita, LA
Built 1982 Load: 28.5 t ADT: 344
Jack Torres Rd
FairOver: BAYOU CHOLPE TRIBUTARY
1.3 M SW Of US 190, Pointe Coupee, LA
Built 1986 Load: 28.5 t ADT: 657
JEFFERSON HWY
FairOver: CREEK
0.46 MI. N.OF US 165B, Rapides, LA
Built 1983 Load: 28.5 t ADT: 1,422
LA0507
FairOver: CREEK
2.0 MI NORTH OF LA 784, Red River, LA
Built 1976 Load: 28.5 t ADT: 517
Showing 3,251-3,300 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 |