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
SPRING CREEK RD
FairOver: WAFER CREEK
6 MI SW VIENNA, Lincoln, LA
Built 1978 Load: 11.0 t ADT: 127
Pea Ridge Rd
FairOver: BLOOD RIVER
3.3 MILES NE OF 43 EXIT, Livingston, LA
Built 2005 Load: 11.0 t ADT: 400
COOPER LAKE RD
FairOver: CYPRESS BAYOU
0.2 MI NW of LA 830-3, Morehouse, LA
Built 1999 Load: 11.0 t ADT: 1,250
Keen Rd
FairOver: ABITA RIVER
0.32M SOUTH OF LA 435, St. Tammany, LA
Built 1993 Load: 11.0 t ADT: 51
House Cr. Rd
FairOver: HOUSE CREEK
2.0 M NORTH OF LA 40, St. Tammany, LA
Built 1991 Load: 11.0 t ADT: 150
Joseph Rd
FairOver: BOGUE FALAYA RIVER
1.3 MI EAST OF LA 25, St. Tammany, LA
Built 1992 Load: 11.0 t ADT: 100
Monceaux Rd
FairOver: BIG FOUR DITCH
1.1 Mi W of La 332, Vermilion, LA
Built 1960 Load: 11.0 t ADT: 40
Ferre Canal Rd.
FairOver: Coulee
0.6 Mi. W. of La 91, Acadia, LA
Built 1967 Load: 11.3 t ADT: 48
LA0146
FairOver: CASTOR CREEK
4.5 MI SOUTH OF LA 145, Jackson, LA
Built 1951 Load: 11.3 t ADT: 882
J. R. McLin Rd
FairOver: HORNSBY CREEK
.5 MI NE OF INTLA1024&449, Livingston, LA
Built 1999 Load: 11.3 t ADT: 10
ADEMA LN
FairOver: DRAINAGE CANAL
0.0 S OF SR 39, Plaquemines, LA
Built 1968 Load: 11.3 t
Big Creek Rd
FairOver: BIG CREEK
1.63 MI. NORTH OF LA 121, Rapides, LA
Built 1954 Load: 11.3 t ADT: 70
Fuselier Rd
FairOver: De Marks Coulee
2.4 Mi. W. of La 740, St. Landry, LA
Built 1976 Load: 11.3 t ADT: 300
Cherry St
FairOver: Bayou Tesson
0.3 Mi. W. of La 182, St. Landry, LA
Built 1965 Load: 11.3 t ADT: 1,200
KING'S Rd
FairOver: WRIGHTS Cr
1.0.MI. NORTH.OF.LA., St. Tammany, LA
Built 1960 Load: 11.3 t ADT: 122
LA0010
FairOver: HAMILTON CREEK
0.7 M E OF LA 1061, Tangipahoa, LA
Built 1957 Load: 11.3 t ADT: 1,333
Soloman Rd
FairOver: CREEK
2.6 MI SW OF JCT 51, Tangipahoa, LA
Built 1960 Load: 11.3 t ADT: 14
Camile Rd
FairOver: Grand Marais Bayou
1 Mi E. of Amerada Rd, Vermilion, LA
Built 1983 Load: 11.3 t ADT: 143
LOUISIANA AVENUE
FairOver: BAYOU ZOURIE BRANCH
VE 763 358, Vernon, LA
Built 1978 Load: 11.3 t ADT: 4,500
SARA ST
FairOver: CANAL
0.25M SOUTH OF PICARD RD, Calcasieu, LA
Built 1988 Load: 11.7 t ADT: 1,200
OLIVE ST
FairOver: W. PRONG YOUNG'S BAYOU
OLIVE ST. - MONROE LA, Ouachita, LA
Built 1985 Load: 11.7 t ADT: 300
Clifton Crossing
FairOver: CYPRESS BAYOU
1.5 MI. SOUTH OF LA 28, Rapides, LA
Built 1969 Load: 11.7 t ADT: 55
Maple Street
FairOver: Betty Bayou
MAPLE STREET, Rapides, LA
Built 1970 Load: 11.7 t ADT: 75
Carrey St
FairOver: CREEK
0.4 MI.NE OF US LA.1, St. Tammany, LA
Built 1960 Load: 11.7 t
TOUSSANT FORET BR
FairOver: PETIT CAILLOU BAYOU
0002 LOG MI FROM IN, Terrebonne, LA
Built 1965 Load: 11.7 t ADT: 1,339
SHRIMPERS ROW
FairOver: PROVOST BAYOU
4.2 MI N OF FALGOUT CANAL, Terrebonne, LA
Built 1963 Load: 11.7 t ADT: 990
LOOKOUT ROAD
FairOver: BEAVER POND
VE861314, Vernon, LA
Built 1978 Load: 11.7 t ADT: 312
LOOKOUT ROAD
FairOver: DRAKES CREEK
VE 851 313, Vernon, LA
Built 1978 Load: 11.7 t ADT: 312
Perchville Rd.
FairOver: MALLET BAYOU
2.2 Mi W of La 367, Acadia, LA
Built 2001 Load: 11.8 t ADT: 240
LA0506
FairOver: CREEK
2.8 MI EAST OF US 165, Caldwell, LA
Built 1960 Load: 11.8 t ADT: 411
LA1159
FairOver: BAYOU
0.4 MI East of LA 1158, Evangeline, LA
Built 1940 Load: 11.8 t ADT: 79
LA0086
FairOver: BAYOU TECHE DASPIT
0.24 MI WEST OF LA 347, Iberia, LA
Built 1965 Load: 11.8 t ADT: 3,834
RAOUL ROAD
FairOver: BAYOU
0.4 M W of LA 101, Jefferson Davis, LA
Built 1977 Load: 11.8 t ADT: 30
CLIFTON ROAD
FairOver: DRAIN
2.3 M W of LA 101, Jefferson Davis, LA
Built 1975 Load: 11.8 t ADT: 101
Zeagler St
FairOver: CREEK
LA778 LOOP TO INT LA127, LaSalle, LA
Built 1975 Load: 11.8 t
LA0444
FairOver: PICOU BAYOU
2.0 M SW OF LA 63, Livingston, LA
Built 1955 Load: 11.8 t ADT: 3,782
LA1047
FairOver: W NATALBANY CREEK
1.5 M E OF LA 441, St. Helena, LA
Built 1957 Load: 11.8 t ADT: 287
LA1050
FairOver: DITCH
0.4 M SE OF LA 1049, Tangipahoa, LA
Built 1960 Load: 11.8 t ADT: 1,583
LA1055
FairOver: SILVER CREEK
LA1055, Washington, LA
Built 1957 Load: 11.8 t ADT: 94
Pointe Noir Rd
FairOver: PLAQUEMINE BRULE BAYOU
1.2 MI W of LA 35, Acadia, LA
Built 1986 Load: 12.0 t ADT: 240
REEDS BRIDGE RD
FairOver: CALCASIEU RIVER RELIEF
1.6 MI WEST OF US 165, Allen, LA
Built 1979 Load: 12.0 t ADT: 132
FDR 155
FairOver: CREEK
NO DATA ENTERED, Grant, LA
Built 1965 Load: 12.0 t ADT: 15
LAMKIN RD
FairOver: CYPRESS
0.2 MI E of US 167, Jackson, LA
Built 2006 Load: 12.0 t
GALLIANO BRIDGE RD
FairOver: LAFOURCHE BAYOU
0.01 MI W. OF LA 308, Lafourche, LA
Built 1956 Load: 12.0 t ADT: 1,338
Carrol Ave
FairOver: BRIDGE OVER COLYELL CREE
.35 MI N JCT US 190 & 449, Livingston, LA
Built 2000 Load: 12.0 t ADT: 250
Royal 18th Dr
FairOver: CREEK
ROYAL 18 ESTATES SUB, St. Tammany, LA
Built 1990 Load: 12.0 t ADT: 200
Pelican Rd
FairOver: MAGEE CANAL
0.9 Mi S of La 330, Vermilion, LA
Built 1982 Load: 12.0 t ADT: 30
Hosston Miller Blf
FairOver: TRIBUTARY TO STUMPY BAYO
3.5 MI E OF US 71, Caddo, LA
Built 1947 Load: 12.3 t ADT: 31
LA0075-S
FairOver: UPPER GRAND R/B SORREL
LA0075, Iberville, LA
Built 1965 Load: 12.3 t ADT: 514
Andover Rd.
FairOver: Indian Bayou Lateral
0.35 MI. N. LA 342, Lafayette, LA
Built 2001 Load: 12.3 t ADT: 26
Showing 1,001-1,050 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 |