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
Jot Em Down Rd
FairOver: SALINE BAYOU
3.3 MI NORTH OF LA 507, Bienville, LA
Built 1986 Load: 27.9 t ADT: 85
US0171
FairOver: BOGGY BAYOU
2.0 MI. S. OF LA 526, Caddo, LA
Built 1953 Load: 27.9 t ADT: 16,911
Springridge-Texas
FairOver: MILL CREEK
0.4 MI. EAST OF TEX, Caddo, LA
Built 1977 Load: 27.9 t ADT: 5,102
Keith-Hall Rd
FairOver: BUCHANAN BAYOU
0.2 MI. SOUTHOF PH. RD.22, Caddo, LA
Built 1998 Load: 27.9 t ADT: 95
Keithvil-Sprrdg Rd
FairOver: KHVL SPGRD6 RD,TRB BUCH
3.8 M.W.OLD MANSFIEL, Caddo, LA
Built 1975 Load: 27.9 t ADT: 140
MT ZION RD
FairOver: BRUSH BAYOU
0.6 MI WEST OF LINWOOD AV, Caddo, LA
Built 1988 Load: 27.9 t ADT: 3,127
MT ZION RD
FairOver: BRUSH BAYOU
0.6 MI WEST OF LINWOOD AV, Caddo, LA
Built 1979 Load: 27.9 t ADT: 2,828
Mooringsport-Latex
FairOver: GARDNER BAYOU
1.1 MI. EAST OF TEX.LINE, Caddo, LA
Built 1981 Load: 27.9 t ADT: 59
PATTON STREET
FairOver: D'INDE BAYOU
0.3 MI E OF LA 27, Calcasieu, LA
Built 2021 Load: 27.9 t ADT: 3,593
US0079
FairOver: BEAVER BRANCH
1.03 MI NORTH OF LA 9, Claiborne, LA
Built 1979 Load: 27.9 t ADT: 5,728
Lisbon Hebron Rd
FairOver: D'ARBONNE BAYOU TRIBUTAR
2.29 MI. S. OF LA 2, Claiborne, LA
Built 1986 Load: 27.9 t ADT: 90
LA0015
FairOver: CREEK
4.14 M S of LA 565, Concordia, LA
Built 2004 Load: 27.9 t ADT: 399
Old Hermitage Pkwy
FairOver: DRAIN CANAL
.25 MI E. OF GARDERE LN., East Baton Rouge, LA
Built 1979 Load: 27.9 t ADT: 1,572
Meadow Bend Dr
FairOver: DRAIN CANAL
.30 MI N. OF BURBANK BLVD, East Baton Rouge, LA
Built 1984 Load: 27.9 t ADT: 351
Jackson Rd
FairOver: LITTLE SANDY CREEK
5.5 MI.N.LA409, LA64, East Baton Rouge, LA
Built 1971 Load: 27.9 t ADT: 1,379
LA0148
FairOver: CREEK
4.53 MI SOUTH OF LA 34, Jackson, LA
Built 1978 Load: 27.9 t ADT: 318
LA1130
FairOver: DRAIN
.49 MI NORTH OF US 190, Jefferson Davis, LA
Built 1964 Load: 27.9 t ADT: 448
LA1019
FairOver: Canada Branch
0.4 miles west of LA 447, Livingston, LA
Built 1998 Load: 27.9 t ADT: 11,852
LA0153
FairOver: ANTOINE CREEK
9.55 MI. N OF INT LA9, Natchitoches, LA
Built 1977 Load: 27.9 t ADT: 609
A. TOUSSAINT BLVD
FairOver: BAYOU ST. JOHN
0.6 MI S OF LAKESHOR, Orleans, LA
Built 1963 Load: 27.9 t
US0071
FairOver: UP RAILROAD
.3 MI. N OF INT I-49, Rapides, LA
Built 1974 Load: 27.9 t ADT: 17,593
Turkey Creek Rd
FairOver: LITTLE SPRING CREEK
1.0 MILE EAST OF US 165, Rapides, LA
Built 1997 Load: 27.9 t ADT: 950
Plantation Rd
FairOver: BAYOU RAPIDES
1.84 MI. NORTH OF LA 496, Rapides, LA
Built 1992 Load: 27.9 t ADT: 1,340
Hooper Rd
FairOver: FLAGON BAYOU
0.76 MI. NORTH OF LA 3225, Rapides, LA
Built 1990 Load: 27.9 t ADT: 1,200
DEER CREEK DR
FairOver: 20 ARPENT CANAL
0.05 MI NE OF LA 39, St. Bernard, LA
Built 1985 Load: 27.9 t ADT: 880
OAK RIDGE BLVD
FairOver: 20 ARPENT CANAL
0.05 MI E OF LA 39, St. Bernard, LA
Built 1986 Load: 27.9 t ADT: 385
Veterans Blvd.
FairOver: CANAL
0.2 Mi S of Hickory St., St. Mary, LA
Built 1978 Load: 27.9 t ADT: 330
WINFRED RD
FairOver: COULEE
1.06 MI N. OF LA 92, Vermilion, LA
Built 2014 Load: 27.9 t ADT: 246
LA0342
FairOver: QUEUE DE TORTUE BAYOU
0.60 MI E. OF LA 35, Acadia, LA
Built 1953 Load: 28.1 t ADT: 1,075
LA0098
FairOver: BAYOU PLAQUEMINE BRULE
1.9 MI EAST OF LA 1110, Acadia, LA
Built 1956 Load: 28.1 t ADT: 994
LA0091
FairOver: CREEK
2.33 MI NORTH OF US 90, Acadia, LA
Built 1963 Load: 28.1 t ADT: 1,617
LA1008
FairOver: BAYOU LAFOURCHE
LA1008, Assumption, LA
Built 1952 Load: 28.1 t ADT: 3,279
LA0002
FairOver: MIDDLEFORK B.DARBONNE RL
3.0 MI EAST OF LA 152, Claiborne, LA
Built 1949 Load: 28.1 t ADT: 990
LA0002
FairOver: NICK CREEK
3.6 MI EAST OF LA 152, Claiborne, LA
Built 1949 Load: 28.1 t ADT: 990
Ellerslie Dr
FairOver: NORTHDALE CANAL
0.1 MI W of LA 3164, East Baton Rouge, LA
Built 1960 Load: 28.1 t ADT: 156
LA0019
FairOver: LITTLE COMITE RIVER
LA0019, East Feliciana, LA
Built 1951 Load: 28.1 t ADT: 3,188
LA0063
FairOver: MCQUINNEY BAYOU R
4.4 M NW of LA 37&LA 63, East Feliciana, LA
Built 1957 Load: 28.1 t ADT: 1,584
LA0115
FairOver: COCODRIE BAYOU
.74 MI NORTH OF LA 106, Evangeline, LA
Built 1957 Load: 28.1 t ADT: 711
Freeland Road
FairOver: Bayou
3.2 Mi N. of LA 102, Jefferson Davis, LA
Built 2017 Load: 28.1 t ADT: 50
LA0042
FairOver: TICKFAW RIVER
LA0042, Livingston, LA
Built 1962 Load: 28.1 t ADT: 4,071
LA0022
FairOver: AMITE DIVERSION CANAL
LA0022, Livingston, LA
Built 1960 Load: 28.1 t ADT: 8,068
OLD HWY 602
FairOver: MILL BAYOU
1.56 MI SOUTH OF I-20, Madison, LA
Built 1951 Load: 28.1 t ADT: 420
LA0142
FairOver: SHILD CREEK
.54 MI NORTH OF LA 543, Morehouse, LA
Built 1950 Load: 28.1 t ADT: 4,706
LA0183
FairOver: HURRICANE BAYOU
1.2 MI NORTH OF US 80, Richland, LA
Built 1950 Load: 28.1 t ADT: 1,467
US0171
FairOver: CHOCTAW BAYOU
1.1 MI. NORTH OF LA 174, Sabine, LA
Built 1962 Load: 28.1 t ADT: 4,790
LA0083
FairOver: IVANHOE CANAL
2.8 Mi EAST OF LA 319, St. Mary, LA
Built 1959 Load: 28.1 t ADT: 3,078
US0190
FairOver: BIG BRANCH
US0190, St. Tammany, LA
Built 1932 Load: 28.1 t ADT: 9,941
LA0433
FairOver: BAYOU BONFOUCA
LA0433, St. Tammany, LA
Built 1976 Load: 28.1 t ADT: 9,174
US0065
FairOver: BIG CHOCTAW BAYOU
.1 MI NORTH OF LA 896, Tensas, LA
Built 1959 Load: 28.1 t ADT: 1,247
Clarence Lege Rd
FairOver: MAREE MICHEL CANAL
0.5 Mi S of LA 14, Vermilion, LA
Built 1960 Load: 28.1 t ADT: 100
Showing 3,201-3,250 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 |