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
LA0156
GoodOver: BRYANT CREEK
2.83 MI EAST OF INT LA 9, Natchitoches, LA
Built 2012 Load: 37.6 t ADT: 597
COULEE LOOP
GoodOver: COULEY LOOP RD
2.38 MI N OF S INT. US 71, Natchitoches, LA
Built 2012 Load: 37.6 t ADT: 165
LA0478
GoodOver: OLD RIVER
6.65 MILES EAST OF LA 120, Natchitoches, LA
Built 2013 Load: 37.6 t ADT: 172
LA0478
GoodOver: BAYOU JULIEN
7.54 MILES EAST OF LA 120, Natchitoches, LA
Built 2013 Load: 37.6 t ADT: 172
Michoud BLVD
GoodOver: DRAIN CANAL
0.2 MILES NORTH OF HWY 90, Orleans, LA
Built 2009 Load: 37.6 t
Michoud BLVD
GoodOver: DRAIN CANAL
0.2 MILES NORTH OF HWY 90, Orleans, LA
Built 2009 Load: 37.6 t
ORANGE ST
GoodOver: YOUNGS BAYOU
0.1 MI. SOUTH OF LA 594, Ouachita, LA
Built 2013 Load: 37.6 t ADT: 5,600
Pecan Lane
GoodOver: Chenal Canal
0.1 Mi S of LA 413, Pointe Coupee, LA
Built 2022 Load: 37.6 t ADT: 80
Rohner Rd
GoodOver: TWELVE MILE CREEK
1.8 MI W JCT LA 43 & 1045, St. Helena, LA
Built 1985 Load: 37.6 t ADT: 350
Chelsie Rd
GoodOver: BAYOU MALLET
0.2 MI East of Falcon Rd, St. Landry, LA
Built 2008 Load: 37.6 t ADT: 30
Cosay Rd
GoodOver: BAYOU CARRON
1.25 Mi S of LA 103, St. Landry, LA
Built 1990 Load: 37.6 t ADT: 600
Ice House Rd
GoodOver: LAKE ST. PETER CANAL
0.9 W of LA 897-6, Tensas, LA
Built 2009 Load: 37.6 t ADT: 100
Wright Rd
GoodOver: COULEE
3.7 MILES S. OF LA.14, Vermilion, LA
Built 2015 Load: 37.6 t ADT: 219
Isadore Rd
GoodOver: COULEE
0.2 Mi E of Jude Rd, Vermilion, LA
Built 2010 Load: 37.6 t ADT: 366
Rice Cove Rd
GoodOver: YOUNGS NORTH COULEE
0.2 Mi E of Airport Rd, Vermilion, LA
Built 1985 Load: 37.6 t ADT: 1,290
N. Broadway St
GoodOver: LAPORTS COULEE
0.1 Mi S. of La 14, Vermilion, LA
Built 1986 Load: 37.6 t ADT: 1,620
LA0008
GoodOver: CREEK
5.2 MI. E OF E JCT. LA 46, Vernon, LA
Built 2012 Load: 37.6 t ADT: 5,978
Lee St
GoodOver: BOGUE CHITTO CREEK
0.3 MILES SOUTH OF LA 10, Washington, LA
Built 2009 Load: 37.6 t ADT: 1,200
Mt. Pleasant Rd
GoodOver: LEE'S CREEK
1.7 MI. WEST OF LA. 1075, Washington, LA
Built 1984 Load: 37.6 t ADT: 1,170
Spring Valley Rd
GoodOver: LEES CREEK
1.0 MI.WEST.OF.LA.1075, Washington, LA
Built 1983 Load: 37.6 t ADT: 630
Rye Ln
GoodOver: ALLIGATOR BAYOU
0.4 MI E of LA 588, West Carroll, LA
Built 2008 Load: 37.6 t ADT: 26
LA0153
GoodOver: TOPY CR
2.44 MI. N. OF LA 155, Bienville, LA
Built 2017 Load: 37.9 t ADT: 1,377
LA0160
GoodOver: CANEY CREEK
3.85 MI WEST OF JCT US 37, Bossier, LA
Built 2012 Load: 37.9 t ADT: 421
Latex State Line
GoodOver: WATSON BAYOU
2.4 MI N OF CADDO RD NO., Caddo, LA
Built 2010 Load: 37.9 t ADT: 60
Kingston Rd
GoodOver: BRUSH BAYOU
2.0 MI. SO. OF LA 526, Caddo, LA
Built 2006 Load: 37.9 t ADT: 100
LA0500
GoodOver: LITTLE RIVER
LOCATED @ LASALL @ GRANT, LaSalle, LA
Built 2011 Load: 37.9 t ADT: 633
LA0500
GoodOver: CREEK
8.3 MI WEST OF US 84, LaSalle, LA
Built 1956 Load: 37.9 t ADT: 633
LA0043
GoodOver: CREEK
0.85 MI N OF US 190, Livingston, LA
Built 2021 Load: 37.9 t ADT: 5,232
LA0428
GoodOver: ALGIERS CANAL
0.80 MILE SOUTH EAST OF U, Orleans, LA
Built 2012 Load: 37.9 t ADT: 626
TULLIS DR
GoodOver: CANAL
1.2M EAST OF BEHRMAN HWY, Orleans, LA
Built 1989 Load: 37.9 t ADT: 500
TULLIS DR
GoodOver: ALGIERS CANAL
0.6M EAST BEHRMAN HWY, Orleans, LA
Built 1989 Load: 37.9 t ADT: 1,000
TULLIS DR
GoodOver: ALGIERS CANAL
0.6M EAST BEHRMAN HWY, Orleans, LA
Built 1989 Load: 37.9 t ADT: 1,000
SUSEK DR
GoodOver: BAYOU MARIA
0.38 MI. EAST OF LA 3144, Rapides, LA
Built 2011 Load: 37.9 t ADT: 4,200
Coulee Crossing Rd
GoodOver: BAYOU CLEAR
0.55 MILE NW OF LA 3265, Rapides, LA
Built 1988 Load: 37.9 t ADT: 25
St Helena Chrch Rd
GoodOver: CREEK
2 MILES EAST OF LA. 1044, St. Helena, LA
Built 2013 Load: 37.9 t ADT: 50
Shiloh Baptist Rd
GoodOver: EAST HOG BRANCH
3.6 MILES WEST OF LA 43, St. Helena, LA
Built 2010 Load: 37.9 t ADT: 50
Byers Ln
GoodOver: BEDICO CREEK
0.8 MI N/E OF LA 22, Tangipahoa, LA
Built 1999 Load: 37.9 t ADT: 388
THOMPSON RD
GoodOver: BAYOU PETIT CAILLOU
1.3 MI. E. OF LA 57, Terrebonne, LA
Built 2016 Load: 37.9 t ADT: 4,256
Moore Rd
GoodOver: MEAZELS CREEK
0.77M WEST OF LA 439, Washington, LA
Built 1993 Load: 37.9 t ADT: 178
LA0160
GoodOver: BODCAU BAYOU
2.21 MI. WEST OF US 371, Webster, LA
Built 2012 Load: 37.9 t ADT: 421
LA0010
GoodOver: NO NAME STREAM
0.861 MILES WEST OF US 61, West Feliciana, LA
Built 2010 Load: 37.9 t ADT: 5,763
LA1107
GoodOver: Blaise Lejeune Gully
0.50 Mi E of LA 367, Acadia, LA
Built 1982 Load: 38.1 t ADT: 1,131
LA0377
GoodOver: CREEK
0.5 M N of LA 112, Allen, LA
Built 1982 Load: 38.1 t ADT: 238
LA0170
GoodOver: CREEK
2.1 MI EAST OF I-49, Caddo, LA
Built 1979 Load: 38.1 t ADT: 1,209
LA0169
GoodOver: CREEK
6.87 MI S OF US 79-80, Caddo, LA
Built 1999 Load: 38.1 t ADT: 1,540
BUD BENNETT RD
GoodOver: BUXTON CREEK
3.6 MI SOUTH OF LA 12, Calcasieu, LA
Built 2011 Load: 38.1 t ADT: 70
I0010
GoodOver: CORPORATION CANAL
0.7 M SW of I-110&LA 73, East Baton Rouge, LA
Built 1967 Load: 38.1 t ADT: 32,092
Wilson St
GoodOver: CYPRESS BAYOU
BAKER, WILSON STREET, East Baton Rouge, LA
Built 2001 Load: 38.1 t ADT: 2,047
US0090
GoodOver: ON RAMP FROM LA1
.08 MI EAST OF LA 1, Lafourche, LA
Built 1976 Load: 38.1 t ADT: 12,192
US0090
GoodOver: OFF RAMP TO LA1
.08 MI EAST OF LA 1, Lafourche, LA
Built 1976 Load: 38.1 t ADT: 12,192
Showing 9,451-9,500 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 |