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
LA0181
GoodOver: DITCH
2.7 MI. SOUTH OF US 71, Rapides, LA
Built 1992 Load: 34.0 t ADT: 739
MITCHINER RD
GoodOver: LITTLE COLEWA CREEK
4.1 MI W of LA 17, Richland, LA
Built 2009 Load: 34.0 t ADT: 175
BIG RIDGE RD
GoodOver: CREEK
1.8 MI E of LA 561, Richland, LA
Built 2011 Load: 34.0 t ADT: 100
SMALLING RD
GoodOver: CYPRESS CREEK
1.7 MI W of LA 183, Richland, LA
Built 2011 Load: 34.0 t ADT: 200
US0171
GoodOver: BAYOU SAN MIGUEL
0.96 MI. NORTH OF LA 120, Sabine, LA
Built 2002 Load: 34.0 t ADT: 5,192
US0171
GoodOver: MIDDLE RELIEF
1.24 MILES NORTH OF LA 12, Sabine, LA
Built 2002 Load: 34.0 t ADT: 5,192
MARIETTA DR
GoodOver: 20 ARPENT CANAL
0.3 MI N OF LA 39, St. Bernard, LA
Built 2015 Load: 34.0 t ADT: 516
THELMA ST
GoodOver: 20 ARPENT CANAL
0.4 MI N OF LA 39, St. Bernard, LA
Built 2015 Load: 34.0 t ADT: 195
Billeaux Road
GoodOver: Carencro Bayou
1.08 Miles E of LA 93, St. Landry, LA
Built 2018 Load: 34.0 t ADT: 680
Watercross Pkwy
GoodOver: Drain
0.1 Mi N of Ochsner Blvd, St. Tammany, LA
Built 2013 Load: 34.0 t ADT: 400
RICEVILLE RD
GoodOver: COULEE
2.3 MI. W. OF LA 91, Vermilion, LA
Built 2016 Load: 34.0 t ADT: 110
Juniper Rd
GoodOver: Sledge Canal
2.8 Mi E. of La 3093, Vermilion, LA
Built 2022 Load: 34.0 t ADT: 80
LA0008
GoodOver: COMRADE CREEK
5.3 MI. E OF E JCT. LA 46, Vernon, LA
Built 2012 Load: 34.0 t ADT: 5,978
DRAKES FORK RD
GoodOver: HORSE BRANCH TRIB
4.1 MILES SOUTH OF LA 10, Vernon, LA
Built 1992 Load: 34.0 t ADT: 360
Nursery Rd
GoodOver: TRIB TO BRUSHY CREEK
0.80 MILES EAST OF US 371, Webster, LA
Built 2011 Load: 34.0 t ADT: 435
Old Arcadia Rd
GoodOver: CROWS CREEK
4.2 MI E OF US 79, Webster, LA
Built 2010 Load: 34.0 t ADT: 263
LA0066
GoodOver: OPOSSUM HOLLOW CR
3.5 MILES W OF LA 969 ON, West Feliciana, LA
Built 2009 Load: 34.0 t ADT: 1,417
LA0066
GoodOver: BEAR CREEK
4.5 MI W OF LA 969, West Feliciana, LA
Built 2011 Load: 34.0 t ADT: 1,417
IRR BIA RTE 3004
GoodOver: TUNICA CREEK
2 KM S OF MARKSVILLE, LA, Avoyelles, LA
Built 1999 Load: 34.2 t ADT: 100
Fort Derussy Rd
GoodOver: JOHNSON BAYOU
0.49 MI. NE OF LA 1192, Avoyelles, LA
Built 2009 Load: 34.3 t ADT: 100
Regard Rd
GoodOver: BAYOU LACOMBE
MANSURA, REGARD ROAD, Avoyelles, LA
Built 2009 Load: 34.3 t ADT: 350
Helen's Crossing
GoodOver: BAYOU DES GLAISES
0.01 MI. EAST OF LA 451, Avoyelles, LA
Built 2003 Load: 34.3 t ADT: 300
Iron Bridge Rd
GoodOver: LEATHERMAN CREEK
1.2 MI W OF LA 157, Bienville, LA
Built 2013 Load: 34.3 t ADT: 80
Pine Grove Rd
GoodOver: MUDDY CREEK
0.2 MI. SOUTH OF LA 4, Bienville, LA
Built 2001 Load: 34.3 t ADT: 400
SOUTH LAKESHORE DR
GoodOver: TRIB. TO CROSS LAKE
1.1 MILES NORTHEAST OF I-, Caddo, LA
Built 2013 Load: 34.3 t ADT: 1,550
LA0506
GoodOver: CREEK
2.1 MI SE OF LA 849, Caldwell, LA
Built 2001 Load: 34.3 t ADT: 300
LA0082
GoodOver: CANAL
26.6 MI E of LA 27, Cameron, LA
Built 2001 Load: 34.3 t ADT: 2,899
LA0082
GoodOver: CANAL
26.7 MI E of LA 27, Cameron, LA
Built 2001 Load: 34.3 t ADT: 2,899
Old Arcadia Rd
GoodOver: CROWS CREEK
3.4 MI S OF LA 518, Claiborne, LA
Built 2010 Load: 34.3 t ADT: 265
I0010
GoodOver: WARD CREEK
.7 MILES EAST OF LA3064 (, East Baton Rouge, LA
Built 2013 Load: 34.3 t ADT: 137,960
Carson Rd
GoodOver: SANDY CREEK
1.0 MILES NORTHEAST OF MI, East Baton Rouge, LA
Built 2012 Load: 34.3 t ADT: 115
Woodlake Dr
GoodOver: JONES CREEK
0.4 MILE SOUTH OF S. HARR, East Baton Rouge, LA
Built 2014 Load: 34.3 t ADT: 3,740
Rogers Rd
GoodOver: THOMPSON CREEK
5.2 MILES WEST OF NORWOOD, East Feliciana, LA
Built 2010 Load: 34.3 t ADT: 200
River Rd
GoodOver: COLLINS CREEK
8.4 MI. E. CLINTON, East Feliciana, LA
Built 2003 Load: 34.3 t ADT: 86
LA0863
GoodOver: CREEK
2.0 MI EAST OF LA 4, Franklin, LA
Built 2001 Load: 34.3 t ADT: 449
MT. LAUREL DR
GoodOver: OAKWOOD CANAL
0.7M SOUTH OF LA 23, Jefferson, LA
Built 1992 Load: 34.3 t ADT: 1,000
Oaklawn Ave.
GoodOver: MINE BRANCH COULEE
.58 Mi W of LA 182, Lafayette, LA
Built 1970 Load: 34.3 t ADT: 500
LA0778
GoodOver: WEST PRONG HEMPHILL CREE
0.30 M W of LA 127, LaSalle, LA
Built 2001 Load: 34.3 t ADT: 1,622
LA0778
GoodOver: HEMPHILL CREEK
0.45 M E of LA 127, LaSalle, LA
Built 2001 Load: 34.3 t ADT: 1,622
E. KENTUCKY AVE
GoodOver: COLVIN CREEK
0.90 MILES EAST OF US 167, Lincoln, LA
Built 2015 Load: 34.3 t ADT: 375
Jack Rhodus Rd
GoodOver: CREEK
0.1 MILES WEST OF LA. 441, Livingston, LA
Built 2013 Load: 34.3 t ADT: 4
Cline Rd
GoodOver: CANAL
1.2 MILES WEST OF LA. 16, Livingston, LA
Built 2013 Load: 34.3 t ADT: 10
LA0441
GoodOver: CAT BRANCH
0.4 MI. SO. INTER. 12, Livingston, LA
Built 1998 Load: 34.3 t ADT: 4,270
LA1019
GoodOver: WEST COLYELL CREEK
4.1 M EAST OF JCT. LA 16, Livingston, LA
Built 2000 Load: 34.3 t ADT: 11,852
BURNS RD
GoodOver: SUTT BAYOU
13 MI W TALLULAH, Madison, LA
Built 1983 Load: 34.3 t ADT: 24
Kisatchie Falls Rd
GoodOver: KISATCHIE BAYOU
1.3 MI. NE OF LA 118, Natchitoches, LA
Built 2012 Load: 34.3 t ADT: 28
Harrison Ave
GoodOver: BAYOU ST JOHN
0.1 Mi. E. OF Wisner Blvd, Orleans, LA
Built 2011 Load: 34.3 t
Harrison Ave
GoodOver: BAYOU ST. JOHN
0.1 MILE EAST OF WISNER B, Orleans, LA
Built 2011 Load: 34.3 t
US0190
GoodOver: US 190 OVER SERE BAYOU
0.3 M E of LA 1, Pointe Coupee, LA
Built 2006 Load: 34.3 t ADT: 20,176
US0190
GoodOver: US 190 OVER SERE BAYOU
0.29 M E of LA 1 @ US 190, Pointe Coupee, LA
Built 2006 Load: 34.3 t ADT: 20,176
Showing 8,901-8,950 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 |