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
Demosthene Rd
GoodOver: COULEE
1 Mi E of Olias Rd, Vermilion, LA
Built 1986 Load: 36.9 t ADT: 135
Roland Farm Rd
GoodOver: YOUNGS CANAL
1.0 MI W of LA 331, Vermilion, LA
Built 1986 Load: 36.9 t ADT: 250
Pickett Rd
GoodOver: COULEE
0.6 Mi W of La 339, Vermilion, LA
Built 1997 Load: 36.9 t ADT: 500
Sidney Gautreaux
GoodOver: COULEE
1.28 MI N. of La 14, Vermilion, LA
Built 1996 Load: 36.9 t ADT: 400
Rosewood Rd
GoodOver: DES ILES COULEE
2.5 Mi N of La 14, Vermilion, LA
Built 1999 Load: 36.9 t ADT: 250
LA0008
GoodOver: CREEK
5.68 MI. E OF E JCT. LA 4, Vernon, LA
Built 2012 Load: 36.9 t ADT: 5,978
LA0008
GoodOver: CREEK
5.53 MI. E OF E JCT. LA 4, Vernon, LA
Built 2012 Load: 36.9 t ADT: 5,978
LA0066
GoodOver: BELL CREEK
1.5 MILES NORTH OF LA 968, West Feliciana, LA
Built 2011 Load: 36.9 t ADT: 1,677
LA0066
GoodOver: CEDAR CREEK
6.5 MILES NORTH OF LA 968, West Feliciana, LA
Built 2010 Load: 36.9 t ADT: 1,677
LA0066
GoodOver: BOARD HOLLOW
5.5 MILES S.W. OF JCT. LA, West Feliciana, LA
Built 2011 Load: 36.9 t ADT: 1,417
Frank White
GoodOver: PORT DE LUCE CREEK
1.3 MI SOUTH US 84 WEST, Winn, LA
Built 2005 Load: 36.9 t ADT: 250
US0071
GoodOver: UNION PACIFIC RAILROAD
0.82 M N OF S JCT LA 1177, Avoyelles, LA
Built 1984 Load: 37.2 t ADT: 3,654
LA0107
GoodOver: BAYOU DES GLAISE
0.9 MILE NORTH OF LA 29, Avoyelles, LA
Built 1977 Load: 37.2 t ADT: 6,887
LA0107
GoodOver: BAYOU DES CYPRAIRRES
1.68 MILES NORTH OF LA 29, Avoyelles, LA
Built 1977 Load: 37.2 t ADT: 6,887
LA0147
GoodOver: CHOCTAW CREEK
2.5 MI NORTH OF LA 155, Bienville, LA
Built 1980 Load: 37.2 t ADT: 1,988
LA0001
GoodOver: KCS RAILROAD
0.43MI NW OF INT. LA 538, Caddo, LA
Built 1994 Load: 37.2 t ADT: 2,007
I0049
GoodOver: HOLLYWOOD AVENUE
0.9 MI N. OF LA 511, Caddo, LA
Built 1993 Load: 37.2 t ADT: 28,142
I0049
GoodOver: OCKLEY DRIVE
1.9 MILES N. OF LA 511, Caddo, LA
Built 1994 Load: 37.2 t ADT: 87,568
I0049
GoodOver: OCKLEY DRIVE
1.9 MILES N. OF LA 511, Caddo, LA
Built 1994 Load: 37.2 t ADT: 28,142
S Tiger Bend Rd
GoodOver: CLAYCUT BAYOU
4 MI NE LA 42, I-10 INT., East Baton Rouge, LA
Built 1993 Load: 37.2 t ADT: 5,630
LA0004
GoodOver: BAYOU MACON
.01 MI NORTH OF LA 555, Franklin, LA
Built 1993 Load: 37.2 t ADT: 1,128
LA0034
GoodOver: EDWARDS BRANCH
0.58 MI E of LA 4, Jackson, LA
Built 2002 Load: 37.2 t ADT: 2,974
LA0034
GoodOver: CASTOR CREEK
1.16 MI E of LA 4, Jackson, LA
Built 2002 Load: 37.2 t ADT: 2,974
St. Esprit Rd.
GoodOver: Coulee
.4 Mi N of W Musique Rd, Lafayette, LA
Built 2007 Load: 37.2 t ADT: 1,082
LA0460
GoodOver: DOYLE BRANCH
6.0 MI EAST OF LA 127, LaSalle, LA
Built 1978 Load: 37.2 t ADT: 776
LA0834
GoodOver: BAYOU BARTHOLOMEW
7.96 MI EAST OF LA 591, Morehouse, LA
Built 1980 Load: 37.2 t ADT: 61
US0090-B
GoodOver: GROUND
1.2 MI. E. OF MISS RIVER, Orleans, LA
Built 1995 Load: 37.2 t ADT: 7,620
I0610
GoodOver: ON RP FROM GENTILLY BLVD
3.3 MI EAST OF I-10, Orleans, LA
Built 1974 Load: 37.2 t ADT: 7,620
I0510
GoodOver: GROUND
1.02 MT.N.OF BEG.OF CONT., Orleans, LA
Built 1993 Load: 37.2 t ADT: 7,620
LA0015
GoodOver: CHOUDRANT CREEK
4.7 MI NORTH OF LA 616, Ouachita, LA
Built 1979 Load: 37.2 t ADT: 6,512
LA0143
GoodOver: TUPAWEK BAYOU
.3 MI NORTH OF LA 616, Ouachita, LA
Built 1996 Load: 37.2 t ADT: 12,648
LA0406
GoodOver: INDUSTRY CANAL
3.11 MI NORTH OF LA 23, Plaquemines, LA
Built 1977 Load: 37.2 t ADT: 12,412
I0049
GoodOver: GROUND
BROADWAY INTG., Rapides, LA
Built 1994 Load: 37.2 t ADT: 20,561
I0049
GoodOver: JUDSON WALSH ROAD
1.51 Mi N of LA 3233, St. Landry, LA
Built 1982 Load: 37.2 t ADT: 44,138
I0049
GoodOver: JUDSON WALSH ROAD
1.26 Mi S of LA 31, St. Landry, LA
Built 1982 Load: 37.2 t ADT: 25,609
I0010
GoodOver: ATCHAFALAYA FLOODWAY
11.6 MI EAST OF LA 347, St. Martin, LA
Built 1991 Load: 37.2 t ADT: 23,521
LA0347
GoodOver: NICHOLAS COULEE
1.8 MI E of LA 347, St. Martin, LA
Built 1979 Load: 37.2 t ADT: 6,880
US0090
GoodOver: 7th Street
1.34 Mi. E. of 182 US 90, St. Mary, LA
Built 1977 Load: 37.2 t ADT: 12,192
LA0021
GoodOver: WRIGHT'S CREEK
LA0021, St. Tammany, LA
Built 1975 Load: 37.2 t ADT: 7,481
LA0040
GoodOver: DRAIN
LA 40 LOG MILE 01.05, Tangipahoa, LA
Built 1982 Load: 37.2 t ADT: 4,748
LA0040
GoodOver: DAVIS BRANCH
0.7 M SE OF LA 1054, Tangipahoa, LA
Built 1981 Load: 37.2 t ADT: 4,748
LA0008
GoodOver: LITTLE-SANDY-CREEK
.1 MI EAST OF LA 464, Vernon, LA
Built 1977 Load: 37.2 t ADT: 2,687
LA0028
GoodOver: FLOCTAW CREEK BRIDGE
4.6 MI EAST OF LA 121, Vernon, LA
Built 1975 Load: 37.2 t ADT: 6,307
LA0028
GoodOver: GREY'S CREEK
6.4 MI EAST OF LA 121, Vernon, LA
Built 1975 Load: 37.2 t ADT: 6,307
LA0016
GoodOver: TCHEFUNCTE RIVER
LA0016, Washington, LA
Built 1974 Load: 37.2 t ADT: 3,747
LA0438
GoodOver: WEST FORK PUSHAPATAPA CR
LA0438, Washington, LA
Built 1981 Load: 37.2 t ADT: 925
I0049
GoodOver: DRAIN
1.11 M. S. OF LA 530, Caddo, LA
Built 2013 Load: 37.3 t ADT: 29,542
I0049
GoodOver: DRAIN
1.09 M. S.OF LA 530, Caddo, LA
Built 2013 Load: 37.3 t ADT: 6,846
OCKLEY DRIVE
GoodOver: OCKLEY DITCH
1.9 MI NORTH OF LA 511, Caddo, LA
Built 1988 Load: 37.3 t ADT: 300
LA0012
GoodOver: PATTERSON SLOUGH
3.98 MI. WEST OF LA 109, Calcasieu, LA
Built 2013 Load: 37.3 t ADT: 3,365
Showing 9,351-9,400 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 |