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
Blanchard Latex Rd
FairOver: E.FORK OF SHETTLEWORTH B
1.4 MI. EAST OF LA 169, Caddo, LA
Built 1985 Load: 20.7 t ADT: 78
McCain Rd
FairOver: MAHLIN BAYOU
2.3 MI S OF INT W HW, Caddo, LA
Built 1980 Load: 20.7 t ADT: 40
McCain Rd
FairOver: TRIBUTARY TO MAHLIN BAYO
1.2 MI S OF INT W HW, Caddo, LA
Built 1980 Load: 20.7 t ADT: 59
Pelican Lodge Rd
FairOver: JEEMS BAYOU
2 MI S OF INT OF LA HWY 2, Caddo, LA
Built 1994 Load: 20.7 t ADT: 59
Rains School Rd
FairOver: BLACK BAYOU TRIB
0.3M SE OF LA 170, Caddo, LA
Built 1993 Load: 20.7 t ADT: 57
Sartor Rd
FairOver: ALLIGATOR BAYOU
1.3M EAST OF LA 3049, Caddo, LA
Built 1992 Load: 20.7 t ADT: 57
Hosston Rodessa Rd
FairOver: GRAY BRANCH
0.75 MI EAST OF LA 1, Caddo, LA
Built 1988 Load: 20.7 t ADT: 59
Gilliam Scotts Slu
FairOver: TRIBUTARY TO KELLY BAYOU
1.6 MI S OF INT 531, Caddo, LA
Built 1980 Load: 20.7 t ADT: 59
MUNERLYN CHAPEL RD
FairOver: HARTMAN BRANCH
0.75M W OF US 71, Caddo, LA
Built 1993 Load: 20.7 t ADT: 78
Capps City Rd
FairOver: E.FORK OF STATELINE CREE
0.5 M E. OF LA HWY 1, Caddo, LA
Built 1982 Load: 20.7 t ADT: 59
Wynn Rd
FairOver: BARDSTOWN BAYOU
2.0 MI EAST OF US 71, Caddo, LA
Built 1989 Load: 20.7 t ADT: 59
Capps City Rd
FairOver: STATE LINE CREEK TRIB
1.2 M EAST OF LA 1, Caddo, LA
Built 1990 Load: 20.7 t ADT: 59
LA0015
FairOver: VIDALIA CANAL
10.54 MI NORTH OF LA 565, Concordia, LA
Built 1961 Load: 20.7 t ADT: 393
LA0015
FairOver: RED BAYOU CANAL
13.69 MI NORTH OF LA 565, Concordia, LA
Built 1961 Load: 20.7 t ADT: 393
I0010
FairOver: DALRYMPLE DR/CITY PK LAK
I0010, East Baton Rouge, LA
Built 1964 Load: 20.7 t ADT: 32,092
LA0019
FairOver: UNNAMED STREAM
0.4 MI. SOUTH OF LA 956, East Feliciana, LA
Built 1949 Load: 20.7 t ADT: 5,440
FDR 120
FairOver: SANDY CREEK
NO DATA ENTERED, Grant, LA
Built 1985 Load: 20.7 t ADT: 15
FDR 558
FairOver: INDIAN CREEK
LOGMI 1.80 FR 569 TO, Grant, LA
Built 1982 Load: 20.7 t ADT: 10
LA0148
FairOver: CREEK
6.93 MI WEST OF LA 146, Jackson, LA
Built 1977 Load: 20.7 t ADT: 532
GANSVILLE ROAD
FairOver: GARRETT CREEK
0.9 Mi. South of LA 4, Jackson, LA
Built 1988 Load: 20.7 t ADT: 421
LAPALCO BLVD
FairOver: AMES CANAL
0.3 MI.W OF AMES BL, Jefferson, LA
Built 1970 Load: 20.7 t ADT: 2,000
WATKINS ROAD
FairOver: CANAL
4.2 M N of LA 14, Jefferson Davis, LA
Built 1973 Load: 20.7 t ADT: 50
LA0092
FairOver: ANSEIM COUIEE
1.2 MI EAST OF LA 733, Lafayette, LA
Built 1973 Load: 20.7 t ADT: 5,486
E. Verot School Rd
FairOver: DES POCHES COULEE
0.8 Mi SW of US 90, Lafayette, LA
Built 1991 Load: 20.7 t ADT: 8,989
Le Violon Rd
FairOver: ILE DES CANNES COULEE
1 Mi North of Congress St, Lafayette, LA
Built 1977 Load: 20.7 t ADT: 2,400
US0190
FairOver: WEST COLYELL CR.
0.7 M E OF LA 1027, Livingston, LA
Built 1932 Load: 20.7 t ADT: 11,488
FSR 282
FairOver: VALENTINE BRANCH
NO DATA ENTERED, Rapides, LA
Built 2001 Load: 20.7 t ADT: 150
LA0457
FairOver: CHATLIN-LAKE-CANAL
4.34 MI. NE OF US 71, Rapides, LA
Built 1979 Load: 20.7 t ADT: 806
LA1203
FairOver: CREEK
2.36 MI. W OF US71, Rapides, LA
Built 1977 Load: 20.7 t ADT: 1,384
W. Bloch St.
FairOver: BAYOU TESSON
0.3 Mi W. of La 182, St. Landry, LA
Built 1965 Load: 20.7 t ADT: 2,500
Florida Ave
FairOver: CANAL
0.7 MI EAST OF 190 B, St. Tammany, LA
Built 1970 Load: 20.7 t ADT: 1,699
CIVIC CENTER BLVD
FairOver: LITTLE BLACK BAYOU
0.008 MI S OF LA 311, Terrebonne, LA
Built 1989 Load: 20.7 t ADT: 6,810
Security Blvd
FairOver: LITTLE BLACK BAYOU
0001 LOG MI FROM INT, Terrebonne, LA
Built 1979 Load: 20.7 t ADT: 468
LA0117
FairOver: COMRADE CREEK
7.14 MI. NORTH OF LA 111, Vernon, LA
Built 1962 Load: 20.7 t ADT: 1,513
558
FairOver: CREEK
NO DATA ENTERED, Winn, LA
Built 2002 Load: 20.7 t ADT: 10
US0084
FairOver: SALINE BAYOU
1.5 MI E JCT LA 1226, Winn, LA
Built 1983 Load: 20.7 t ADT: 4,081
LA0098
FairOver: B WYCOFF
1.1 MI EAST OF LA 367, Acadia, LA
Built 1954 Load: 20.9 t ADT: 3,881
LA0100
FairOver: CREEK
1.21 MI EAST OF LA 97, Acadia, LA
Built 1951 Load: 20.9 t ADT: 1,128
LA0022
FairOver: BAYOU FRANCOIS
LA0022, Ascension, LA
Built 1954 Load: 20.9 t ADT: 9,674
LA0022
FairOver: DENHAM CANAL
LA0022, Ascension, LA
Built 1959 Load: 20.9 t ADT: 11,980
LA0022
FairOver: LITTLE LAKE RELIEF
1.8 Mi. E. of LA 937, Ascension, LA
Built 1959 Load: 20.9 t ADT: 11,980
LA0029
FairOver: BAYOU BOEUF
0.1 MILE NORTH OF LA 1176, Avoyelles, LA
Built 1952 Load: 20.9 t ADT: 1,799
LA0389
FairOver: CYPRESS CREEK
6.8 MI. S OF INT US190, Beauregard, LA
Built 1951 Load: 20.9 t ADT: 556
LA0389
FairOver: PULLEM CREEK
2.85 MI. S OF INT US190, Beauregard, LA
Built 1951 Load: 20.9 t ADT: 442
LA0389
FairOver: HOOSIER CREEK
1.95 MI. S OF INT US190, Beauregard, LA
Built 1951 Load: 20.9 t ADT: 442
LA0112
FairOver: WEST RELIEF
0.5 MI E of US 171, Beauregard, LA
Built 1957 Load: 20.9 t ADT: 718
LA0112
FairOver: FLAT CREEK
0.6 MI E of US 171, Beauregard, LA
Built 1957 Load: 20.9 t ADT: 718
LA0112
FairOver: WEST RELIEF
0.5 MI E of LA 1146, Beauregard, LA
Built 1957 Load: 20.9 t ADT: 718
LA0112
FairOver: CREEK
0.6 MI E of LA 1146, Beauregard, LA
Built 1957 Load: 20.9 t ADT: 718
LA0112
FairOver: BUNDICK CREEK
0.7 MI E of LA 1146, Beauregard, LA
Built 1957 Load: 20.9 t ADT: 718
Showing 2,051-2,100 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 |