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
S. Coburn Rd
FairOver: SELSERS CREEK
0.4 MI. S OF LA. 1067, Tangipahoa, LA
Built 1996 Load: 32.7 t ADT: 94
Woodstone Dr
FairOver: YELLOW WATER CREEK
0.15M E OF US51/WOODSTONE, Tangipahoa, LA
Built 1992 Load: 32.7 t ADT: 418
Chappepeela Rd
FairOver: CHAPPEPEELA CREEK
0.2 MI. W OF LA 445, Tangipahoa, LA
Built 1990 Load: 32.7 t ADT: 1,145
Old Genessee Rd
FairOver: YELLOW WATER CREEK
2.4M SE OF EXIT 442, Tangipahoa, LA
Built 1993 Load: 32.7 t ADT: 557
Neal Rd
FairOver: LITTLE CHAPEPEELA CREEK
1.7 mi. w of la. 445, Tangipahoa, LA
Built 1992 Load: 32.7 t ADT: 878
E. Bell Rd
FairOver: PEAKS CREEK
2.8 MI SW OF JCT 16 & 445, Tangipahoa, LA
Built 1995 Load: 32.7 t ADT: 201
W. Olive St
FairOver: CREEK
.45MI SW US 51 W OLIVE, Tangipahoa, LA
Built 1979 Load: 32.7 t ADT: 1,520
US0090
FairOver: DEADWOOD RD, TIGER BAYOU
.04 MI EAST OF LA 3052, Terrebonne, LA
Built 1994 Load: 32.7 t ADT: 4,014
US0167
FairOver: BIG CORNEY BAYOU
2.2 MI SOUTH OF LA 15, Union, LA
Built 1952 Load: 32.7 t ADT: 422
LA0082
FairOver: INTRACOASTAL WATERWAY
14.2 MI N. OF LA 3147, Vermilion, LA
Built 1976 Load: 32.7 t ADT: 2,899
MILL CREEK ROAD
FairOver: DRAKES CREEK
VE823384, Vernon, LA
Built 1978 Load: 32.7 t ADT: 100
MILL CREEK ROAD
FairOver: WHISKEY CHITTO CREEK
VE 858 387, Vernon, LA
Built 1978 Load: 32.7 t ADT: 50
MILL CREEK ROAD
FairOver: WHISKEY CHITTO CREEK
VE 859 388, Vernon, LA
Built 1978 Load: 32.7 t ADT: 50
RIVERTON DRIVE
FairOver: BAYOU ZOURIE TRIB
VE 814 412, Vernon, LA
Built 1990 Load: 32.7 t ADT: 300
PERIMETER ROAD
FairOver: COMRADE CREEK
VE 818 668, Vernon, LA
Built 1978 Load: 32.7 t ADT: 40
PERIMETER ROAD
FairOver: MARTIN CREEK
VE 753 653, Vernon, LA
Built 1978 Load: 32.7 t ADT: 40
PERIMETER ROAD
FairOver: DOWDEN CREEK
VE 713 664, Vernon, LA
Built 1978 Load: 32.7 t ADT: 40
HAYNES SETTLEMENT
FairOver: DOWDEN CREEK
VE 713 688, Vernon, LA
Built 1967 Load: 32.7 t ADT: 40
DOWDEN CREEK RD
FairOver: DOWDEN CREEK
VE 703 688, Vernon, LA
Built 1968 Load: 32.7 t ADT: 40
YELLOW BRICK ROAD
FairOver: COMRADE CREEK
VE 801 680, Vernon, LA
Built 1969 Load: 32.7 t ADT: 40
OAKIE FLAT ROAD
FairOver: TRIB OF COMRADE CREEK
V 803 670, Vernon, LA
Built 2000 Load: 32.7 t ADT: 40
ROCK QUARRY ROAD
FairOver: TIGER CREEK
VE 823 727, Vernon, LA
Built 1990 Load: 32.7 t ADT: 40
RIVERTON ROAD
FairOver: DRAINAGE TO ZOURIE BAYOU
NEAR WILLIAM ST, Vernon, LA
Built 1990 Load: 32.7 t ADT: 300
PENDLETON DR
FairOver: ZOURIE BAYOU
NEAR RYAN, Vernon, LA
Built 1989 Load: 32.7 t ADT: 300
BEN WEST RD
FairOver: UNKNOWN CREEK
Fort Polk, Vernon, LA
Built 2018 Load: 32.7 t ADT: 40
MILL CREEK ROAD
FairOver: BIRDS CREEK
FORT POLK, Vernon, LA
Built 1987 Load: 32.7 t ADT: 200
MILL CREEK ROAD
FairOver: BIRDS CREEK
FORT POLK, Vernon, LA
Built 1987 Load: 32.7 t ADT: 200
MAV LZ
FairOver: W FORK 6MI CREEK
FORT POLK, Vernon, LA
Built 2009 Load: 32.7 t ADT: 40
SIXMILE CREEK RD
FairOver: TRIB TO W FORK 6 MI CRK
VE 981 379, Vernon, LA
Built 1994 Load: 32.7 t ADT: 300
SIXMILE CREEK RD
FairOver: TRIB TO W FORK 6 MI CRK
VE 965 374, Vernon, LA
Built 1994 Load: 32.7 t ADT: 300
MILL CREEK ROAD
FairOver: BIRDS CREEK
VE 919 379, Vernon, LA
Built 1987 Load: 32.7 t ADT: 300
DRAKES CREEK ROAD
FairOver: OBANION BRANCH
VE 840 326, Vernon, LA
Built 1994 Load: 32.7 t ADT: 320
DRAKES CREEK ROAD
FairOver: TRIB TO DRAKES CREEK
VE 853 335, Vernon, LA
Built 1994 Load: 32.7 t ADT: 350
DRAKES CREEK ROAD
FairOver: TRIB TO DRAKES CREEK
VE 852 334, Vernon, LA
Built 1994 Load: 32.7 t ADT: 320
Sam Thomas Rd
FairOver: CREEK
1.5 MILES NORTH OF LA 438, Washington, LA
Built 2014 Load: 32.7 t ADT: 324
I0020
FairOver: BOONE CREEK
2.33 MI WEST OF LA 7, Webster, LA
Built 1987 Load: 32.7 t ADT: 31,074
I0020
FairOver: COOLEY BRANCH
0.41M E OF LA 7 @ MINDEN, Webster, LA
Built 1960 Load: 32.7 t ADT: 44,225
US0061
FairOver: THOMPSON CREEK BRIDGE
US 61, WEST FELICIANA, West Feliciana, LA
Built 1987 Load: 32.7 t ADT: 2,531
LA0066
FairOver: BIG BAYOU SARA
LA0066, West Feliciana, LA
Built 1949 Load: 32.7 t ADT: 4,492
CAMP EDGEWOOD RD
FairOver: HICKORY CREEK
2.8 MI WEST OF US 171, Beauregard, LA
Built 1994 Load: 33.0 t ADT: 700
1ST PENT CHURCH RD
FairOver: HICKORY BRANCH
1.7 MI W OF US 171, Beauregard, LA
Built 1983 Load: 33.0 t ADT: 500
LA3032
FairOver: RED RIVER,FANT&TEAGUE PK
0.31 MILES WEST OF US 71, Caddo, LA
Built 2008 Load: 33.0 t ADT: 14,900
WILLIAMSON WAY
FairOver: SUMMER GROVE DITCH
1.61NI E OF US HWY, Caddo, LA
Built 1972 Load: 33.0 t ADT: 4,404
LAKE ST
FairOver: CONTRABAND BAYOU
1.0 MILES SOUTH OF I-210, Calcasieu, LA
Built 2012 Load: 33.0 t ADT: 19,793
LA0014
FairOver: DRAIN
0.3 MI N of BUS. US 90, Calcasieu, LA
Built 1962 Load: 33.0 t ADT: 22,885
I0010
FairOver: KIRKMAN STREET
2.2 MI W of US 171, Calcasieu, LA
Built 1961 Load: 33.0 t ADT: 11,437
RIGMAIDEN CEM. RD.
FairOver: BUXTON CREEK
0.4 MI N of JOHNSON RD, Calcasieu, LA
Built 1991 Load: 33.0 t ADT: 341
Brushey Bayou Rd
FairOver: DEER CREEK
.33 Miles N of LA 915, Catahoula, LA
Built 1983 Load: 33.0 t ADT: 120
I0010
FairOver: TRINITY DRAINAGE CANAL
I0010, Iberville, LA
Built 1971 Load: 33.0 t ADT: 58,734
I0010
FairOver: TRINITY DRAINAGE CANAL
I0010, Iberville, LA
Built 1971 Load: 33.0 t ADT: 298
Showing 4,451-4,500 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 |