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
Elliot Rd
GoodOver: DRAINAGE BAYOU
1.3 Mi N of HooShooToo, East Baton Rouge, LA
Built 2000 Load: 29.0 t ADT: 6,230
Vermont St
GoodOver: CORPORATION CANAL
WEST POLK STREET B.R., East Baton Rouge, LA
Built 1996 Load: 29.0 t ADT: 300
N. Flannery Rd
GoodOver: SHARP STATION CANAL
0.7 MI S LA 37, East Baton Rouge, LA
Built 2000 Load: 29.0 t ADT: 6,609
LA3255
GoodOver: CLEAR CREEK
LA0961, East Feliciana, LA
Built 1967 Load: 29.0 t ADT: 174
LA0861
GoodOver: BAYOU HURRICANE
.8 MI EAST OF LA 17, Franklin, LA
Built 1964 Load: 29.0 t ADT: 198
LA0861
GoodOver: HURRICANE SLOUGH
1.61 MI EAST OF LA 17, Franklin, LA
Built 1964 Load: 29.0 t ADT: 198
LA0861
GoodOver: DEWITT GULLEY
1.7 MI EAST OF LA 17, Franklin, LA
Built 1964 Load: 29.0 t ADT: 198
LA0871
GoodOver: GOOSE CREEK
2.2 MI WEST OF LA 562, Franklin, LA
Built 1967 Load: 29.0 t ADT: 141
LA0869
GoodOver: PINE BAYOU
1.5 MI NORTH OF LA 618, Franklin, LA
Built 1965 Load: 29.0 t ADT: 455
LA0869
GoodOver: MOUND BAYOU
2.1 MI NORTH OF LA 618, Franklin, LA
Built 1965 Load: 29.0 t ADT: 455
Norris Rd
GoodOver: CREEK
0.5 MI N of LA 675, Iberia, LA
Built 1966 Load: 29.0 t ADT: 749
LA0076
GoodOver: LOWER MARINGOUIN CANAL
2.3 M N of LA 3000, Iberville, LA
Built 1964 Load: 29.0 t ADT: 7,562
Eraste Landry Rd
GoodOver: MINE COULEE
0.7 MI W of LA 3184, Lafayette, LA
Built 2001 Load: 29.0 t ADT: 8,580
LA0444
GoodOver: BAYOU BARBARY
LA 0444, Livingston, LA
Built 1965 Load: 29.0 t ADT: 3,782
I0610
GoodOver: OFF RP TO PARIS AVE
3.3 MI EAST OF I-10, Orleans, LA
Built 1974 Load: 29.0 t ADT: 7,620
I0010
GoodOver: RESERVE RELIEF CANAL
I 10, St. John the Baptist, LA
Built 1974 Load: 29.0 t ADT: 27,551
LA1056
GoodOver: BICKHAM BRANCH
1.0 M N OF LA 440, Washington, LA
Built 1966 Load: 29.0 t ADT: 993
LA0984
GoodOver: STUMPY BAYOU
2.7 M N of LA 984&LA 620, West Baton Rouge, LA
Built 1965 Load: 29.0 t ADT: 2,446
Penn Blvd
GoodOver: HENDERSON BAYOU
0.1 M N of LA933, Ascension, LA
Built 1992 Load: 29.2 t ADT: 60
US0090
GoodOver: GROUND
1.0 M W of US 90&LA 662, Assumption, LA
Built 1998 Load: 29.2 t ADT: 12,192
SOUTH LAKESHORE DR
GoodOver: PAGE BAYOU
4.1 MI E OF LA 169, Caddo, LA
Built 1982 Load: 29.2 t ADT: 475
Hosston Rodessa Rd
GoodOver: TRIB.TO BLACKLAKE BAYOU
2.0 M. W. OF US 71, Caddo, LA
Built 1998 Load: 29.2 t ADT: 57
Mira Scotts Slu
GoodOver: KELLY BAYOU
1.0 M EAST OF US 71, Caddo, LA
Built 1989 Load: 29.2 t ADT: 150
Funsten Rd
GoodOver: CASTOR BAYOU RELIEF
1.8 MI. EAST OF LA 5, De Soto, LA
Built 2006 Load: 29.2 t ADT: 30
Cora St.
GoodOver: COULEE MINE BRANCH
0.02 MI N of W. Willow St, Lafayette, LA
Built 1981 Load: 29.2 t ADT: 1,201
Sparrow Rd
GoodOver: TROUT CREEK
0.5 Miles North of LA 8, LaSalle, LA
Built 2013 Load: 29.2 t ADT: 300
Turnley Rd
GoodOver: BEAR BRANCH
0.3 miles SW of US 84 E, LaSalle, LA
Built 2011 Load: 29.2 t ADT: 130
E BEAR LAKE RD #3
GoodOver: BULL BAYOU
4.1 MI W of US 65, Madison, LA
Built 1999 Load: 29.2 t ADT: 144
I0010
GoodOver: METAIRIE RELIEF CANAL
1 MILE WEST OF CARROLLTON, Orleans, LA
Built 2006 Load: 29.2 t ADT: 12,220
RICHARDSON RD
GoodOver: DRAIN TO BAYOU CHOUDRANT
0.75 MILES EAST OF LA 837, Ouachita, LA
Built 2011 Load: 29.2 t ADT: 180
MCGEE RD
GoodOver: MIDDLE CREEK TRIB.
MCGEE ROAD, Sabine, LA
Built 2004 Load: 29.2 t ADT: 60
US0090
GoodOver: CREEK
6.24 Mi E of LA 182, St. Mary, LA
Built 1998 Load: 29.2 t ADT: 4,014
LA0440
GoodOver: CREEK
0.37 MI E OF LA 1061, Tangipahoa, LA
Built 2015 Load: 29.2 t ADT: 752
LA0440
GoodOver: PITTS CREEK
4.5 MI EAST JCT. LA 1057, Tangipahoa, LA
Built 2002 Load: 29.2 t ADT: 752
CASTOR LAKE RD
GoodOver: LIBERTY CREEK
1.0M SE OF LA 468, Vernon, LA
Built 1992 Load: 29.2 t ADT: 70
Tom Benson Rd
GoodOver: TOM BENSON RD, COW CREEK
3.0 MI WEST OF LA 259, Webster, LA
Built 1985 Load: 29.2 t ADT: 176
LA0112
GoodOver: DRAIN
3.0 MI E of LA 113, Allen, LA
Built 2011 Load: 29.5 t ADT: 718
SHIRLEY FRANCIS RD
GoodOver: TRIB. TO BOGGY BAYOU
3.1 MILES EAST OF LA 169, Caddo, LA
Built 2007 Load: 29.5 t ADT: 4,015
LA0158
GoodOver: GRAPPE BAYOU
0.14 MILE SOUTH JCT US 71, Grant, LA
Built 2009 Load: 29.5 t ADT: 1,561
Newton Rd
GoodOver: BEAVER CREEK
0.3 M. S. OF JCT. LA 122, Grant, LA
Built 1998 Load: 29.5 t ADT: 49
Bayou Paul Ln
GoodOver: BAYOU PAUL
.3 MI. NW OF ST. GABRIEL, Iberville, LA
Built 1994 Load: 29.5 t ADT: 985
RIDGELAKE DR
GoodOver: CANAL NO. 2
0.1 MI EAST OF CAUSEWAY, Jefferson, LA
Built 2003 Load: 29.5 t
W. Pont Des Mouton
GoodOver: Gaston Coulee
0.1 Mi. W. of La 182, Lafayette, LA
Built 2006 Load: 29.5 t ADT: 11,091
US0084
GoodOver: CREEK
.9 MI WEST OF LA 127, LaSalle, LA
Built 1959 Load: 29.5 t ADT: 6,905
N. Doyle Rd
GoodOver: BIG BRANCH
3.0 MI N/E OF LA 63 EXIT, Livingston, LA
Built 1998 Load: 29.5 t ADT: 850
Bayou Derbonne Rd
GoodOver: BAYOU DERBONNE TRIBUTARY
1.6 MILES NW OF LA 119, Natchitoches, LA
Built 2012 Load: 29.5 t ADT: 104
S NORMAN C FRANCIS
GoodOver: WASHINGTON AVE CANAL
0.0 MI NE OF WASHINGTON A, Orleans, LA
Built 1990 Load: 29.5 t ADT: 1,000
S NORMAN C FRANCIS
GoodOver: WASHINGTON AVE CANAL
0.04 MI SW OF CALLIOPE ST, Orleans, LA
Built 1990 Load: 29.5 t ADT: 1,000
CAPLES RD
GoodOver: CLARK CREEK
2.33 MILES EAST OF LA 546, Ouachita, LA
Built 2015 Load: 29.5 t ADT: 573
Osa Avant Rd
GoodOver: Eureka Creek
0.2 Mi N. of La 837, Ouachita, LA
Built 2020 Load: 29.5 t ADT: 297
Showing 7,551-7,600 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 |