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
LA0111
GoodOver: YELLOW BRANCH
2.24 MILES NORTH OF LA 8, Vernon, LA
Built 1982 Load: 39.9 t ADT: 426
LA0111
GoodOver: JONES CREEK
3.58 MILES NORTH OF LA 8, Vernon, LA
Built 1982 Load: 39.9 t ADT: 426
LA0111
GoodOver: SANDY CREEK
5.4 MI NORTH OF LA 8, Vernon, LA
Built 1982 Load: 39.9 t ADT: 426
LA0392
GoodOver: LITTLE SANDY BRANCH
3.18 M N JCT LA 111, Vernon, LA
Built 1999 Load: 39.9 t ADT: 498
LA0392
GoodOver: ELDER BRANCH
4.47 M. N. OF JCT. LA 111, Vernon, LA
Built 1998 Load: 39.9 t ADT: 485
LA0464
GoodOver: BUCK CREEK
1.17M SOUTH OF JCT LA 8, Vernon, LA
Built 1993 Load: 39.9 t ADT: 856
LA0489
GoodOver: BILLY CREEK
2.2 MI. N. OF LA 121, Vernon, LA
Built 1999 Load: 39.9 t ADT: 639
LA0113
GoodOver: SOAPSTONE CREEK
3.62M. S. OF JCT LA 10, Vernon, LA
Built 2000 Load: 39.9 t ADT: 709
LA0113
GoodOver: SIX MILE CREEK
1.22 M S OF JCT LA 10, Vernon, LA
Built 1999 Load: 39.9 t ADT: 709
LA3226
GoodOver: CYPRESS CREEK TRIBUTARY
3.79 MI WEST OF US 171, Vernon, LA
Built 1987 Load: 39.9 t ADT: 1,816
LA0010
GoodOver: BOGUE LUSA CREEK
00.04 EAST OF LA 62, Washington, LA
Built 2013 Load: 39.9 t ADT: 5,765
LA0010
GoodOver: COBURN CREEK
1 MILE EAST OF LA 21, Washington, LA
Built 2013 Load: 39.9 t ADT: 6,499
N. Royal St
GoodOver: NORTH ROYAL ST OVER CREE
0.2 MILE NORTH OF REDMOND, Washington, LA
Built 2007 Load: 39.9 t ADT: 225
US0167
GoodOver: CEDAR CREEK
7.48 MI. NORTH OF LA 500, Winn, LA
Built 1988 Load: 39.9 t ADT: 11,712
US0167
GoodOver: PORT DELUCE CREEK RELIEF
0.11 MI. SOUTH OF LA 501, Winn, LA
Built 1991 Load: 39.9 t ADT: 8,727
LA0034
GoodOver: FLAT CREEK
3.56 MI NORTH OF LA 126, Winn, LA
Built 1988 Load: 39.9 t ADT: 916
LA0500
GoodOver: BEAR CREEK
0.24 MI. EAST OF US 167, Winn, LA
Built 1998 Load: 39.9 t ADT: 220
I0220
GoodOver: GROUND
I-49 AT I-220, Caddo, LA
Built 2018 Load: 40.2 t ADT: 87,567
KINGSLEY ST
GoodOver: GUM SLOUGH
0.05 MI N of BUS 90, Calcasieu, LA
Built 2003 Load: 40.2 t ADT: 370
Old LA 539
GoodOver: BULL BAYOU
0.58 MILES NE OF LA 191, De Soto, LA
Built 2004 Load: 40.2 t ADT: 115
LA0068
GoodOver: MCCLAINS BRANCH
3.11 MILES NORTH OF LA 10, East Feliciana, LA
Built 2011 Load: 40.2 t ADT: 825
Scates Rd
GoodOver: DEER CREEK
0.92 MI E of Hwy 15, Franklin, LA
Built 1998 Load: 40.2 t ADT: 36
VIRGIL RD
GoodOver: SMITH CREEK
0.9 MI SW of LA 151, Lincoln, LA
Built 2003 Load: 40.2 t ADT: 225
LA0444
GoodOver: DUNNAGE CREEK
4.25 MILES WEST OF LA.22, Livingston, LA
Built 2015 Load: 40.2 t ADT: 3,782
HODGE RD
GoodOver: HARPER BAYOU
3.9 MI S of LA 602, Madison, LA
Built 1993 Load: 40.2 t ADT: 136
SUNSHINE RD
GoodOver: COFFEE BAYOU
9.6 MI S of LA 835, Morehouse, LA
Built 2004 Load: 40.2 t ADT: 25
LUM DAY RD
GoodOver: PRATT BRAKE
0.2 MI S of LA 142, Morehouse, LA
Built 2004 Load: 40.2 t ADT: 200
LA1220
GoodOver: LITTLE RIVER
2.90 MI. EAST OF LA 119, Natchitoches, LA
Built 2010 Load: 40.2 t ADT: 99
Johnson Chute Rd
GoodOver: JOHNSON CHUTE BAYOU
3.43 MI. WEST OF LA 1, Natchitoches, LA
Built 1984 Load: 40.2 t ADT: 285
TOM STURDIVANT RD
GoodOver: WILDERS CREEK
1.0 MI SE of LA 546, Ouachita, LA
Built 2005 Load: 40.2 t ADT: 350
US0171
GoodOver: BAYOU TORO RELIEF
5.22 MI. NORTH OF LA 392, Sabine, LA
Built 2004 Load: 40.2 t ADT: 3,483
Maryland Dr
GoodOver: ELLINGTON CANAL
2.0 MI. S. OF US 90, St. Charles, LA
Built 2009 Load: 40.2 t
N. Oak St
GoodOver: CREEK
1.7 MI SO LA 1064 ON NOAK, Tangipahoa, LA
Built 1996 Load: 40.2 t ADT: 3,757
S HOLLYWOOD RD
GoodOver: BAYOU BLACK
0.01 EAST OF LA 311, Terrebonne, LA
Built 1996 Load: 40.2 t ADT: 7,492
RUGGS BLUFF RD
GoodOver: FRANCIS CREEK
4.6 MI NW of LA 15, Union, LA
Built 2005 Load: 40.2 t ADT: 192
LA0008
GoodOver: CREEK
3.0 MI. E OF E INT. LA 46, Vernon, LA
Built 2012 Load: 40.2 t ADT: 5,978
LA0008
GoodOver: MENACE CREEK
0.3 MI. E OF E INT. LA 46, Vernon, LA
Built 2012 Load: 40.2 t ADT: 5,978
RIVER ROAD
GoodOver: BRANCH
1.9 MI S OF LA 438, Washington, LA
Built 2018 Load: 40.2 t ADT: 241
Jack Martin Rd
GoodOver: BRUSHY CREEK
1.6 MI N OF HWY 532, Webster, LA
Built 2004 Load: 40.2 t ADT: 293
I0010
GoodOver: DRAINAGE CANAL
0.3 M SE of I-10&LA 941, Ascension, LA
Built 1979 Load: 40.5 t ADT: 57,444
OLD RIVER RD
GoodOver: SHOATS CREEK
0.8 MI N of LLOYD SMITH C, Beauregard, LA
Built 2005 Load: 40.5 t ADT: 10
Swan Lake Rd
GoodOver: MACKS BAYOU
1.5 MI NORTH OF US 80, Bossier, LA
Built 1986 Load: 40.5 t ADT: 14,078
E Brookstown Dr
GoodOver: HURRICANE CREEK
0.2 MILES NORTH OF WINSBO, East Baton Rouge, LA
Built 2015 Load: 40.5 t ADT: 5,100
Flint Rd
GoodOver: TURKEY CREEK
LOGMI 0.40 FR ODE TO 534, Franklin, LA
Built 1993 Load: 40.5 t ADT: 120
Hudson Creek Rd
GoodOver: HUDSON CREEK
0.69 M. N. OF JCT US 71, Grant, LA
Built 2005 Load: 40.5 t ADT: 350
LA0428
GoodOver: ALGIERS CANAL
0.5 MILE SOUTH EAST OF US, Orleans, LA
Built 2012 Load: 40.5 t ADT: 28,244
LA0507
GoodOver: CREEK
1.7 MI E OF LA 514, Red River, LA
Built 2021 Load: 40.5 t ADT: 582
PROSPECT RD
GoodOver: BIG SKINNER CREEK
6.28 MI. SOUTH OF LA 474, Sabine, LA
Built 2004 Load: 40.5 t ADT: 85
MESHELL RD
GoodOver: EDMONDSON CREEK
MESHELL ROAD, Sabine, LA
Built 1990 Load: 40.5 t ADT: 120
LA0038
GoodOver: DRAIN
0.63OF A MILE EAST OF LA, St. Helena, LA
Built 2013 Load: 40.5 t ADT: 1,715
Showing 9,951-10,000 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 |