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
Perchville Rd
GoodOver: MALLET BAYOU
2.0 Mi W of La 367, Acadia, LA
Built 2012 Load: 23.7 t ADT: 528
Perchville Rd
GoodOver: MALLET BAYOU
2.1 Mi W of La 367, Acadia, LA
Built 1999 Load: 23.7 t ADT: 528
FUSELIER LN
GoodOver: OBERLIN DITCH
0.5 MI N of W 9TH AVE, Allen, LA
Built 2011 Load: 23.7 t ADT: 125
CARRIER RD
GoodOver: GUM BRANCH
3.1 MI EAST OF US 165, Allen, LA
Built 2011 Load: 23.7 t ADT: 180
River Rd
GoodOver: BAYOU CHOCTAW
1.3 MI. NORTH OF LA 1, Avoyelles, LA
Built 1989 Load: 23.7 t ADT: 150
US0080
GoodOver: UPRR
0.41 MI. E. OF I-20, Caddo, LA
Built 2016 Load: 23.7 t ADT: 11,342
Central Throughway
GoodOver: DRAIN
0.5 MI. N. OF US190, East Baton Rouge, LA
Built 2011 Load: 23.7 t ADT: 10,400
N Stewart Ln
GoodOver: DRAINAGE CREEK
1.6 MI SW LA67, LA422 JCT, East Feliciana, LA
Built 1999 Load: 23.7 t ADT: 14
NFSR 558
GoodOver: CREEK
NO DATA ENTERED, Grant, LA
Built 2003 Load: 23.7 t ADT: 30
NFSR 558
GoodOver: NO DATA ENTERED
NO DATA ENTERED, Grant, LA
Built 2007 Load: 23.7 t ADT: 30
Belle Place Rd
GoodOver: Teche Bayou
0.1 Mi. N. Of La 86, Iberia, LA
Built 1988 Load: 23.7 t ADT: 3,317
LAPALCO BLVD
GoodOver: OAKWOOD CANAL
0.1MI.W OF BELLCHASE, Jefferson, LA
Built 1960 Load: 23.7 t ADT: 20,000
CITRUS RD
GoodOver: SONIAT CANAL
0.01 MI.WEST.OF.HICK, Jefferson, LA
Built 1965 Load: 23.7 t ADT: 1,000
W. Congress St.
GoodOver: MINE COULEE
0.4 Miles SW of LA 3025, Lafayette, LA
Built 1968 Load: 23.7 t ADT: 15,700
LA0151
GoodOver: CREEK
3.36 MILES NORTH JCT LA54, Lincoln, LA
Built 2011 Load: 23.7 t ADT: 527
LA0151
GoodOver: CREEK
1.96 MILES NORTH JCT LA 5, Lincoln, LA
Built 2011 Load: 23.7 t ADT: 1,110
MAY'S CROSSING RD
GoodOver: D'ARBONNE BAYOU
2.4 MI N of LA 151, Lincoln, LA
Built 2001 Load: 23.7 t ADT: 165
US0090
GoodOver: RIGOLETS PASS
8.7 MILES EAST OF CHEF PA, Orleans, LA
Built 2008 Load: 23.7 t ADT: 1,215
STARS & STRIPES B
GoodOver: CITY STREET/RAILROAD
0.2 MI WEST OF LA 47, Orleans, LA
Built 1998 Load: 23.7 t ADT: 13,713
MARTHAVILLE RD
GoodOver: BAYOU DUPONT
MARTHAVILLE ROAD, Sabine, LA
Built 2000 Load: 23.7 t ADT: 170
LA0437
GoodOver: DRAIN
0.95 MI. NO. LA 25 INTER., St. Tammany, LA
Built 1997 Load: 23.7 t ADT: 4,871
Reid Rd
GoodOver: LITTLE NATALBANY RIVER
2.5 MI SW OF JCT OF 16&51, Tangipahoa, LA
Built 2002 Load: 23.7 t ADT: 32
Stateline Rd
GoodOver: TERRY'S CREEK
4.3 MI NW OF JCT 51 &1054, Tangipahoa, LA
Built 2002 Load: 23.7 t ADT: 40
LA0008
GoodOver: COMRADE CREEK
6.09 MI. E OF E JCT. LA 4, Vernon, LA
Built 2012 Load: 23.7 t ADT: 5,978
Claiborne St
GoodOver: COBURN CREEK
0.4 MILES NORTH OF LA 10, Washington, LA
Built 2010 Load: 23.7 t ADT: 520
NFSR 506
GoodOver: CYPRESS CREEK
NO DATA ENTERED, Winn, LA
Built 2003 Load: 23.7 t ADT: 20
NFSR 558
GoodOver: IATT CREEK
NO DATA ENTERED, Winn, LA
Built 2005 Load: 23.7 t ADT: 30
Zaunbrecher Rd.
GoodOver: COULEE
4.4 Mi W of La 91, Vermilion, LA
Built 2015 Load: 23.8 t ADT: 12
COONEY BONNETT RD
GoodOver: ROGERS CREEK
3.0 MI. S. OF LA 34, Ouachita, LA
Built 2018 Load: 23.9 t ADT: 183
LA0933
GoodOver: RODDY BAYOU
0.9 Mi. S. of LA 42, Ascension, LA
Built 2007 Load: 24.0 t ADT: 6,131
Dutch John Rd
GoodOver: Dutch John Branch
0.6 MI SE OF LA 2, Bossier, LA
Built 1994 Load: 24.0 t ADT: 90
LA 1256
GoodOver: DRAIN
.04 MI N of LA 27, Calcasieu, LA
Built 1984 Load: 24.0 t ADT: 20,278
LA0014
GoodOver: JACQUES COULEE
1.05 MI EAST OF LA 27, Calcasieu, LA
Built 1959 Load: 24.0 t ADT: 2,023
LA0146
GoodOver: L&NW RAILROAD
0.06 MI E OF US 79, Claiborne, LA
Built 2010 Load: 24.0 t ADT: 1,360
Whitney AVE
GoodOver: Verret Canal
1.5 Mi S of US 90, Jefferson, LA
Built 2004 Load: 24.0 t ADT: 250
LAPALCO BLVD
GoodOver: WEYRAUCH CANAL
0.6MI.E.OF MANHATTAN, Jefferson, LA
Built 1976 Load: 24.0 t ADT: 30,000
Ridge Rd.
GoodOver: DRAINAGE CANAL
.3 MI E of Rue Du Beller, Lafayette, LA
Built 1997 Load: 24.0 t ADT: 13,000
US0190
GoodOver: AMITE RIVER
3 MILES WEST OF LA 1032, Livingston, LA
Built 2009 Load: 24.0 t ADT: 10,200
US0190
GoodOver: AMITE RIVER
3 MILES WEST OF LA 1032, Livingston, LA
Built 2010 Load: 24.0 t ADT: 23,971
LA0428
GoodOver: ALGIERS CANAL
1.0 MILES SOUTH OF US 90B, Orleans, LA
Built 1987 Load: 24.0 t ADT: 7,178
OAK ST
GoodOver: COON CREEK
MONROE, Ouachita, LA
Built 1993 Load: 24.0 t ADT: 200
LA0043
GoodOver: CREEK
0.41 MI. SOUTH OF LA 10, St. Helena, LA
Built 1947 Load: 24.0 t ADT: 2,252
LA0083
GoodOver: KELLY CANAL
2.80 MI WEST OF US 90, St. Mary, LA
Built 1954 Load: 24.0 t ADT: 3,078
LA0700
GoodOver: HUNTER CANAL
0.5 MI E of LA 35, Vermilion, LA
Built 1955 Load: 24.0 t ADT: 1,685
Como Rd
GoodOver: SANDERS CREEK
4.2 MI W OF LA 968, West Feliciana, LA
Built 2018 Load: 24.0 t ADT: 19
Countrywood Rd
GoodOver: WHITE OAK CREEK
1.01M NW of LA 846, Caldwell, LA
Built 1996 Load: 24.3 t ADT: 40
Stilt St
GoodOver: MONTE SANO BAYOU
.30 MI EAST OF HIWAY 19, East Baton Rouge, LA
Built 1994 Load: 24.3 t ADT: 177
Pride-Baywood Rd
GoodOver: COTTON CREEK
3.4 MI. E. of LA 409, East Baton Rouge, LA
Built 1968 Load: 24.3 t ADT: 1,118
Leman Rd
GoodOver: MARSH BAYOU
0.90 Mi N of La 106, Evangeline, LA
Built 2004 Load: 24.3 t ADT: 130
W Metairie Ave
GoodOver: Canal #5
0.3 Miles W of David D, Jefferson, LA
Built 2002 Load: 24.3 t ADT: 387
Showing 7,101-7,150 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 |