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
LA0025
FairOver: DRAIN
1.4 M N OF LA 40, St. Tammany, LA
Built 1963 Load: 74.5 t ADT: 9,685
LA0025
FairOver: DRAIN
1.4 M NE OF LA 450, St. Tammany, LA
Built 1963 Load: 74.5 t ADT: 9,685
LA1088
FairOver: LACOMBE BAYOU
LA1088, St. Tammany, LA
Built 1974 Load: 74.5 t ADT: 9,722
Stafford Rd
FairOver: CANAL
0.70 MILES NORTH OF LA. 1, Tangipahoa, LA
Built 2015 Load: 74.5 t ADT: 1,708
I0055
FairOver: DRAIN
BEGINNING OF ELEVATED HWY, Tangipahoa, LA
Built 1978 Load: 74.5 t ADT: 402
LA3087
FairOver: BAYOU BLUE
2 MILES EAST OF LA 182, Terrebonne, LA
Built 1988 Load: 74.5 t ADT: 13,617
DRY CREEK RD
FairOver: HORSE PEN CREEK
0.4 M N.E. OF INT 459, Union, LA
Built 1990 Load: 74.5 t ADT: 122
RISINGER RD
FairOver: TERMITE CREEK
1.2 MI NORTHEAST INT 745, Union, LA
Built 1987 Load: 74.5 t ADT: 191
LA0082
FairOver: LANGLINOIS DITCH
5.1 Miles North of LA 14, Vermilion, LA
Built 1963 Load: 74.5 t ADT: 2,000
LA0082
FairOver: CREEK
6.4 Miles North of LA 14, Vermilion, LA
Built 1963 Load: 74.5 t ADT: 2,000
LA0111
FairOver: DRAIN
.29 MI E OF W JCT LA 392, Vernon, LA
Built 1999 Load: 74.5 t ADT: 801
LA0111
FairOver: UNNAMED BRANCH
6.61 MI EAST JCT US 171, Vernon, LA
Built 1997 Load: 74.5 t ADT: 937
LA0399
FairOver: BR. OF WHISKEY CHITTO CR
2.22 MI. SOUTH OF LA 10, Vernon, LA
Built 2001 Load: 74.5 t ADT: 938
LA0113
FairOver: CANEY BRANCH
5.19 MI SO OF JCT LA 10, Vernon, LA
Built 1999 Load: 74.5 t ADT: 709
LA0113
FairOver: UNNAMED CREEK
2.66 MI S OF JCT LA 10, Vernon, LA
Built 1999 Load: 74.5 t ADT: 709
SAVAGE FORKS RD
FairOver: BIG BRANCH
1.02 M. S. OF END LA 1211, Vernon, LA
Built 1984 Load: 74.5 t ADT: 290
VFW RD
FairOver: CASTOR BAYOU TRIBUTARY
1.38 M. W. OF LA 1211, Vernon, LA
Built 1987 Load: 74.5 t ADT: 250
ALLEN GORDY RD
FairOver: FLACTOR CREEK TRIB.
0.47 M. N. OF LA 121 NEAR, Vernon, LA
Built 1984 Load: 74.5 t ADT: 100,060
ROY LEE SNELL RD
FairOver: BR. OF W. ANACOCO CR.
APP. 0.5 M W OF RIVERS RD, Vernon, LA
Built 1984 Load: 74.5 t ADT: 80
LA0440
FairOver: DRAIN
0.1 MI. E. LA 1057 INTER., Washington, LA
Built 1998 Load: 74.5 t ADT: 1,360
LA0060
FairOver: DRAIN
4.9M EAST LA 16 @ ENON, Washington, LA
Built 1993 Load: 74.5 t ADT: 749
LA1072
FairOver: DRAIN
6.50M EAST LA 16, Washington, LA
Built 1992 Load: 74.5 t ADT: 1,105
LA0439
FairOver: MILLER BRANCH
ON LA439 5.5MI. S OF LAID, Washington, LA
Built 1964 Load: 74.5 t ADT: 1,235
Main St
FairOver: FOSTER CREEK
0.1 M WEST OF HWY 21, Washington, LA
Built 1991 Load: 74.5 t ADT: 776
LA0531
FairOver: CREEK
0.71 MI N OF US 80, Webster, LA
Built 1980 Load: 74.5 t ADT: 1,689
LA9873
FairOver: DRAINAGE CANAL
0.4 MILES EAST OF HWY 415, West Baton Rouge, LA
Built 1962 Load: 74.5 t ADT: 1,725
LA9873
FairOver: DRAINAGE CANAL
1.7 MILES EAST OF HWY 415, West Baton Rouge, LA
Built 1962 Load: 74.5 t ADT: 1,725
Hill Church Rd
FairOver: TIGER BAYOU
0.6 MILES WEST OF LA 17, West Carroll, LA
Built 1999 Load: 74.5 t ADT: 160
LA0589
FairOver: DEER LAKE
1.97 MI W of LA 17, West Carroll, LA
Built 1981 Load: 74.5 t ADT: 528
LA0588
FairOver: BLADE BAYOU
0.92 MI W of LA 17, West Carroll, LA
Built 1983 Load: 74.5 t ADT: 345
LA0588
FairOver: HURRICANE CREEK
1.57 MI W of LA 17, West Carroll, LA
Built 1983 Load: 74.5 t ADT: 345
Beebe Rd
FairOver: LITTLE COLEWA BAYOU
0.1 MI N of LA 2, West Carroll, LA
Built 1991 Load: 74.5 t ADT: 80
Harris Cornor Rd
FairOver: SAND CREEK
2.8 MI.SW US61,STATE LINE, West Feliciana, LA
Built 1985 Load: 74.5 t ADT: 90
US0084
FairOver: CALVARY CREEK
6.44 MI. EAST OF LA 124, Winn, LA
Built 1998 Load: 74.5 t ADT: 891
US0084
FairOver: CURRY CREEK
12.88 MI.E. JCT. US 167, Winn, LA
Built 1998 Load: 74.5 t ADT: 891
LA0126
FairOver: BRUSHY CREEK
0.55 MI EAST JCT US 167, Winn, LA
Built 1996 Load: 74.5 t ADT: 742
LA0126
FairOver: DRAINAGE DITCH
0.12 MILE WEST OF LA 127, Winn, LA
Built 1985 Load: 74.5 t ADT: 646
LA0127
FairOver: WHELESS BRANCH
5.85 MI. NW CALDWELL LINE, Winn, LA
Built 2002 Load: 74.5 t ADT: 183
Jesse Hanson
FairOver: REDLAND CREEK
0.49 MI. NORTH OF LA 34, Winn, LA
Built 1987 Load: 74.5 t ADT: 100
Floyd Johnston
FairOver: CREEK
1.13 MI. EAST OF LA 499, Winn, LA
Built 1984 Load: 74.5 t ADT: 190
DREYFOUS AVE
FairOver: CITY PARK LAGOON
0.5MI.W OF WISNER BL, Orleans, LA
Built 1924 Load: 74.8 t
Debutante Rd.
FairOver: COULEE
0.30 Mi SE of I-49, Lafayette, LA
Built 1986 Load: 77.1 t ADT: 520
SWAIN ROAD
FairOver: W FORK 6MI CREEK
FORT POLK, Vernon, LA
Built 2007 Load: 78.4 t ADT: 336
UNNAMED ROAD
FairOver: TRIB TO ODOM CREEK
VE 818 704, Natchitoches, LA
Built 2005 Load: 82.9 t ADT: 40
SPEARS VILLAGE RD
FairOver: DRAINAGE STAGESTAND CR
PEASON RIDGE TRAIN AREA, Vernon, LA
Built 2005 Load: 82.9 t ADT: 400
Enrique Alferez
FairOver: CITY PARK LAGOON
0.3MI.N OF MUSEUM AR, Orleans, LA
Built 1939 Load: 92.7 t
US0065
FairOver: DRAIN
1.7 MI NORTH OF LA 605, Tensas, LA
Built 1953 Load: 97.2 t ADT: 2,374
TRAM ROAD
FairOver: TIGER CREEK
VE 826 720, Vernon, LA
Built 2005 Load: 97.2 t ADT: 40
BELL RICHARD AVE
FairOver: HOGPEN BRANCH
VE 949 320, Vernon, LA
Built 1981 Load: 97.2 t ADT: 160
902-2.7
GoodOver: BEAR CREEK
NO DATA ENTERED, Claiborne, LA
Built 2021 ADT: 15
Showing 6,651-6,700 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 |