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
LA0038
FairOver: DRAIN
1.3 M W OF LA 25, Washington, LA
Built 1952 Load: 21.8 t ADT: 1,706
LA0038
FairOver: DRAIN
0.9 MI W OF LA 25, Washington, LA
Built 1949 Load: 21.8 t ADT: 1,706
LA0038
FairOver: DRAIN
0.8 M W OF LA 25, Washington, LA
Built 1949 Load: 21.8 t ADT: 1,706
LA0038
FairOver: DRAIN
0.6 M W OF LA 25, Washington, LA
Built 1949 Load: 21.8 t ADT: 1,706
LA0038
FairOver: DRAIN
0.5 M W OF LA 25, Washington, LA
Built 1949 Load: 21.8 t ADT: 1,706
LA0038
FairOver: DRAIN
0.3 M W OF LA 25, Washington, LA
Built 1949 Load: 21.8 t ADT: 1,706
LA0577
FairOver: BIG COLEWA BAYOU
.7 MI EAST OF LA 585, West Carroll, LA
Built 1953 Load: 21.8 t ADT: 365
SONNIER RD
FairOver: CREEK
0.7 MI S OF PAUL FRANK RD, Allen, LA
Built 2010 Load: 22.0 t ADT: 50
US0190
FairOver: CREEK
5.8 MI. E OF INT LA 113, Allen, LA
Built 1931 Load: 22.0 t ADT: 3,263
US0165
FairOver: BAYOU
2.2 MI S of LA 26, Allen, LA
Built 1962 Load: 22.0 t ADT: 8,809
STEVENSON ST
FairOver: GUM CREEK
0.3 MI SOUTH OF US 90, Calcasieu, LA
Built 1968 Load: 22.0 t ADT: 207
BUSH RD
FairOver: DRAIN TO JONES BAYOU
0.01 MILES NORTH OF LA 58, East Carroll, LA
Built 1996 Load: 22.0 t ADT: 135
OLD HWY 882
FairOver: JOE'S BAYOU
1.76 MI WEST OF SOUTH INT, East Carroll, LA
Built 1979 Load: 22.0 t ADT: 110
FDR 155
FairOver: SADDLE BAYOU OVFLOW
NO DATA ENTERED, Grant, LA
Built 1962 Load: 22.0 t ADT: 15
LA0014
FairOver: JEFFERSON CANAL
2.99 MI EAST OF LA 330, Iberia, LA
Built 1930 Load: 22.0 t ADT: 12,347
Lee Station Rd
FairOver: Petite Anse Bayou
2.2 Mi. S. of La 14, Iberia, LA
Built 1985 Load: 22.0 t ADT: 35
Rue Basin
FairOver: Coulee
.1 M W of I49 S Srvce Rd, Lafayette, LA
Built 1981 Load: 22.0 t ADT: 100
Aicee Fortier BLVD
FairOver: CANAL
.2 MI. N. OF HWY. 90, Orleans, LA
Built 1970 Load: 22.0 t
JUDY DR
FairOver: 20 ARPENT CANAL
0.15 MI N E OF LA 39, St. Bernard, LA
Built 1988 Load: 22.0 t ADT: 618
LA0441
FairOver: DAY BRANCH
LA0441, St. Helena, LA
Built 1960 Load: 22.0 t ADT: 393
US0190
FairOver: BAYOU LACOMBE
0.12 MI NE OF LA 434, St. Tammany, LA
Built 1938 Load: 22.0 t ADT: 9,941
US0190
FairOver: CREEK
2.5 M E OF LA 434, St. Tammany, LA
Built 1933 Load: 22.0 t ADT: 11,718
LA0014
FairOver: AVRICO CANAL
5.98 MI W. OF LA 91, Vermilion, LA
Built 1960 Load: 22.0 t ADT: 1,717
Choctaw Rd
FairOver: BOGUE CHITTO R.
2.2 MI.N.OF LA 1082, Washington, LA
Built 1979 Load: 22.0 t ADT: 610
US0190
FairOver: BAYOU CLAUSE
4.8 M E OF LA 413, West Baton Rouge, LA
Built 2002 Load: 22.0 t ADT: 20,097
LA0010
FairOver: W FORK THOMPSON C
10.44 Mi E of US 61, West Feliciana, LA
Built 1959 Load: 22.0 t ADT: 2,392
Coldwater
FairOver: COLDWATER CREEK
APP. 3.75 MI. NW OF US 84, Winn, LA
Built 1975 Load: 22.0 t ADT: 95
Coldwater
FairOver: COLDWATER CREEK
1.25 MI. WEST OF LA 156, Winn, LA
Built 1970 Load: 22.0 t ADT: 288
LA0365
FairOver: LONG POINT GULLEY
0.3 MI WEST OF LA 1109, Acadia, LA
Built 1963 Load: 22.4 t ADT: 1,570
LA0372
FairOver: W FORK CANEY CR
5.2 MI S OF LA 10, Allen, LA
Built 1971 Load: 22.4 t ADT: 651
Coco Rd
FairOver: DRAIN BAYOU
0.1 Mi N of LA 73, Ascension, LA
Built 2014 Load: 22.4 t ADT: 50
LA0998
FairOver: BAYOU LAFOURCHE
LA0998, Assumption, LA
Built 1972 Load: 22.4 t ADT: 877
LA0027
FairOver: CREEK
7.19 MI. N OF INT LA27/11, Beauregard, LA
Built 1955 Load: 22.4 t ADT: 3,333
LA0154
FairOver: FLAT RIVER
.37 MI EAST OF US 71, Bossier, LA
Built 1978 Load: 22.4 t ADT: 3,124
VALLEY VIEW DR
FairOver: AIRPORT DITCH
0.3 MI.WEST OF U.S., Caddo, LA
Built 1955 Load: 22.4 t ADT: 1,174
SLATTERY BLVD
FairOver: GILBERT DITCH
0.5 MI. EAST OF LINE, Caddo, LA
Built 1955 Load: 22.4 t ADT: 750
Bailey Town Rd
FairOver: BAILEY TN RD,TR CORNEY B
7.48 MI. E. OF LA. 2, Claiborne, LA
Built 1975 Load: 22.4 t ADT: 65
LA0408
FairOver: COMITE RIVER
2.6 M E of LA 67&LA 408, East Baton Rouge, LA
Built 1984 Load: 22.4 t ADT: 19,515
I0010
FairOver: WARDS CREEK
I0010, East Baton Rouge, LA
Built 1967 Load: 22.4 t ADT: 201,563
BLVD De Province
FairOver: DRAINAGE CANAL
BLVD. DE PROVINCE, East Baton Rouge, LA
Built 1978 Load: 22.4 t ADT: 500
Oak Villa Blvd
FairOver: JONES CREEK
1.7 M N FLORIDA BLVDUS190, East Baton Rouge, LA
Built 1998 Load: 22.4 t
LA0067
FairOver: WHITE BRANCH
1.6 M S of LA 63, East Feliciana, LA
Built 1976 Load: 22.4 t ADT: 5,772
LA0010
FairOver: THOMPSON CREEK
LA0010, East Feliciana, LA
Built 1959 Load: 22.4 t ADT: 3,675
LA0673
FairOver: DRAINAGE CANAL
0.2 MI SOUTH OF LA 85, Iberia, LA
Built 1987 Load: 22.4 t ADT: 852
S LESTER AVE
FairOver: CANAL NO. 6
0.01 MI S OF US 61, Jefferson, LA
Built 1970 Load: 22.4 t ADT: 2,000
THIRD STREET
FairOver: BAYOU
0.6 MI E of LA 14/26, Jefferson Davis, LA
Built 1968 Load: 22.4 t ADT: 1,790
Young St.
FairOver: LASALLE COULEE
1.88 Mi W of US 90, Lafayette, LA
Built 1959 Load: 22.4 t ADT: 7,700
US0080
FairOver: CREEK
1.3 MI EAST OF LA 145, Lincoln, LA
Built 1952 Load: 22.4 t ADT: 3,275
LA0554
FairOver: LITTLE BAYOU BEOUF
MOREHOUSE/OUACHITA LINE, Morehouse, LA
Built 1983 Load: 22.4 t ADT: 495
FDR 249
FairOver: LITTLE BAYOU CLEAR
NO DATA ENTERED, Rapides, LA
Built 1970 Load: 22.4 t ADT: 60
Showing 2,301-2,350 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 |