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
LA1208-1
GoodOver: HYNSON BAYOU
3.45 MI. E OF US71, Rapides, LA
Built 1994 Load: 35.0 t ADT: 4,442
Cheneyville Cutoff
GoodOver: COULEE DU PECHEUR
1.58 MI. SW OF LA 1, Rapides, LA
Built 2012 Load: 35.0 t ADT: 543
CUMMINS RD
GoodOver: GOLDMINE CREEK
0.9 MI S of LA 135, Richland, LA
Built 2002 Load: 35.0 t ADT: 50
OQUINN RD
GoodOver: CYPRESS CREEK
1.1 MI SW of I-20, Richland, LA
Built 2002 Load: 35.0 t ADT: 100
US0171
GoodOver: BAYOU TORO
4.97 MI. NORTH OF LA 392, Sabine, LA
Built 2009 Load: 35.0 t ADT: 4,790
Otis/Wilie Mathews
GoodOver: DARLING CREEK
2.5 MI. SOUTH OF LA 10, St. Helena, LA
Built 1999 Load: 35.0 t ADT: 200
US0190
GoodOver: DRAIN
0.2 MILE WEST OF US 90, St. Tammany, LA
Built 2013 Load: 35.0 t ADT: 2,496
Clydesdale Road
GoodOver: COW SLOUGH
1.67 M SW of LA 4, Tensas, LA
Built 2003 Load: 35.0 t ADT: 50
LA0020
GoodOver: TIGER BAYOU
0.6 MI E OF LA 182, Terrebonne, LA
Built 1984 Load: 35.0 t ADT: 2,471
LA0020
GoodOver: CANAL
1.6 M E OF LA 182, Terrebonne, LA
Built 1984 Load: 35.0 t ADT: 2,471
LA0020
GoodOver: DRAINAGE CANAL
9.3 MI E OF LA 182, Terrebonne, LA
Built 1984 Load: 35.0 t ADT: 3,696
US0090
GoodOver: TIGER BAYOU
3.95 MI EAST OF LA 662, Terrebonne, LA
Built 1998 Load: 35.0 t ADT: 4,014
LITROE LOOP
GoodOver: PIERRE CREEK
0.9 MI E of LA 826, Union, LA
Built 2003 Load: 35.0 t ADT: 62
US0167
GoodOver: BIG CREEK
2.18 MI. NORTH OF LA 126, Winn, LA
Built 2010 Load: 35.0 t ADT: 5,367
US0167
GoodOver: KCS RAILROAD
.7 MI NORTH OF LA 34, Winn, LA
Built 2006 Load: 35.0 t ADT: 15,576
ST. MARY STREET
GoodOver: GREENS GULLY
0.2 MI N of ST. MARY ST., Jefferson Davis, LA
Built 2021 Load: 35.2 t ADT: 100
City Park Dr.
GoodOver: LAPORTS COULEE
120' South of LA 14, Vermilion, LA
Built 2011 Load: 35.2 t ADT: 50
Chestnut Rd.
GoodOver: ROBINS CANAL
3.6 Mi. East of LA 3093, Vermilion, LA
Built 2016 Load: 35.2 t ADT: 118
Cleo Road
GoodOver: Broussard Canal
1.8 Mi W of Leon Rd, Vermilion, LA
Built 2020 Load: 35.2 t ADT: 100
Old River Rd
GoodOver: LACOMBE BAYOU
0.91 MI. E. OF JCT. LA 10, Avoyelles, LA
Built 2013 Load: 35.3 t ADT: 552
LA0154
GoodOver: CROSS BAYOU
2.46 MILES EAST OF US 71, Bossier, LA
Built 2008 Load: 35.3 t ADT: 3,124
Linwood Ave
GoodOver: WALLACE BAYOU
4.0 MI S. OF LA 526, De Soto, LA
Built 2001 Load: 35.3 t ADT: 760
EAST CHIMES ST
GoodOver: CORPORATION CANAL
0.2 MI E OF HIGHLAND RD, East Baton Rouge, LA
Built 2018 Load: 35.3 t ADT: 577
US0061
GoodOver: CLAYCUT BAYOU
US0061, East Baton Rouge, LA
Built 1970 Load: 35.3 t ADT: 32,619
US0061
GoodOver: CLAYCUTT BAYOU
US0061, East Baton Rouge, LA
Built 1970 Load: 35.3 t ADT: 29,303
Church St
GoodOver: DRAINAGE CREEK
.2 MILES E OF LA 67 & KER, East Feliciana, LA
Built 2008 Load: 35.3 t ADT: 82
Port Rd
GoodOver: Rodere Lateral
2.50 Mi W of La 83, Iberia, LA
Built 2012 Load: 35.3 t ADT: 1,776
BURMA RD
GoodOver: HOLLYWOOD CANAL
1.0 MI. SOUTH OF LA 1, Lafourche, LA
Built 2012 Load: 35.3 t ADT: 1,643
Laurel Valley Rd
GoodOver: DRAIN CANAL
0.8 Mi. W. of Choctaw Rd, Lafourche, LA
Built 2001 Load: 35.3 t ADT: 1,406
LA0146
GoodOver: BIG CREEK RELIEF
1.38 MI. EAST OF LA 563, Lincoln, LA
Built 2013 Load: 35.3 t ADT: 2,775
BEACON LIGHT RD
GoodOver: I C RAILROAD
3 MI EAST OF RUSTON, Lincoln, LA
Built 1984 Load: 35.3 t ADT: 500
VTR AIRPORT RD
GoodOver: CYPRESS BAYOU
0.1 MI E of US 65, Madison, LA
Built 2006 Load: 35.3 t ADT: 125
LA0009
GoodOver: BLACK LAKE
4.88 MI. EAST OF US 71, Natchitoches, LA
Built 2010 Load: 35.3 t ADT: 2,118
KIROLI RD
GoodOver: SOUTH TUPAWEK CREEK
0.3 MI. NORTH OF LA 616, Ouachita, LA
Built 2012 Load: 35.3 t ADT: 4,200
Duvic Pump Rd
GoodOver: DRAIN CANAL
0.1 MI W OF LA 23, Plaquemines, LA
Built 2005 Load: 35.3 t
Broadway Avenue
GoodOver: Chatlin Lake Canal
1.45 MI NORTH JCT I-49, Rapides, LA
Built 2006 Load: 35.3 t ADT: 6,200
VENTURA DR
GoodOver: 20 ARPENT CANAL
0.51 MI N OF LA 39, St. Bernard, LA
Built 2013 Load: 35.3 t ADT: 200
Rohner Rd
GoodOver: TWELVE MILE CREEK RELIEF
1.8 MILES NORTH OF LA 43, St. Helena, LA
Built 2009 Load: 35.3 t ADT: 500
Under the Hill Rd
GoodOver: CREEK
0.2 OF A MILE NORTH OF LA, St. Helena, LA
Built 2013 Load: 35.3 t ADT: 700
I0012
GoodOver: CANAL&BIKE TRAIL
0.2 M W OF LA 59, St. Tammany, LA
Built 1976 Load: 35.3 t ADT: 29,236
MONROE ST W OFF RP
GoodOver: N. CAUSEWAY APPR. S BOUN
0.60 MI N OF CAUSEWAY BR., St. Tammany, LA
Built 1993 Load: 35.3 t ADT: 1,600
Dummyline Rd
GoodOver: BAYOU DEZAIRE
0.4 M WEST OF LA 1077, St. Tammany, LA
Built 1990 Load: 35.3 t ADT: 1,563
LA0468
GoodOver: BAYOU CASTOR
0.34 MILES EAST OF US 171, Vernon, LA
Built 2009 Load: 35.3 t ADT: 3,800
Poplas St
GoodOver: CREEK
.50 MILES NORTH OF LA. 10, Washington, LA
Built 2013 Load: 35.3 t ADT: 1,731
Seven Mile Rd
GoodOver: PETERS CREEK
1.0 MILES NORTH OF LA 10, Washington, LA
Built 2010 Load: 35.3 t ADT: 710
Burrow Ln
GoodOver: FRENCH CREEK
1.0 MI S OF LA 160, Webster, LA
Built 1999 Load: 35.3 t ADT: 555
LA0472
GoodOver: BIG CREEK
3.27 MI N OF LA 1230, Winn, LA
Built 2010 Load: 35.3 t ADT: 332
LA0035
GoodOver: PLAQUEMINE BRULE BAYOU
0.2 MI NE OF LA 95, Acadia, LA
Built 1977 Load: 35.4 t ADT: 5,022
I0010
GoodOver: NEW RIVER
0.01 Mi S of LA 429, Ascension, LA
Built 1975 Load: 35.4 t ADT: 555
I0020
GoodOver: LOUISIANA AVE
.07 MI WEST OF LA 1, Caddo, LA
Built 1965 Load: 35.4 t ADT: 98,318
Showing 9,051-9,100 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 |