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
NICOLLE BLVD
GoodOver: MAIN CANAL
1.4M SOUTH OF LAPALCO BLV, Jefferson, LA
Built 1992 Load: 30.8 t ADT: 1,000
Eraste Landry Rd.
GoodOver: Ile Des Cannes Bayou
0.40 MI E of LA 93, Lafayette, LA
Built 2008 Load: 30.8 t ADT: 7,088
St. Esprit Rd.
GoodOver: COULEE
1.60 Mi E of I-49, Lafayette, LA
Built 2013 Load: 30.8 t ADT: 1,188
Camellia Blvd.
GoodOver: VERMILION RIVER
0.9 MI S. of US 167, Lafayette, LA
Built 2003 Load: 30.8 t ADT: 13,385
Cajundome Blvd.
GoodOver: CREEK
0.62 OF MI. W. OF US 167, Lafayette, LA
Built 1981 Load: 30.8 t ADT: 2,360
LA0127
GoodOver: CHICKASAW CREEK
01.44 MILES SOUTHEAST OF, LaSalle, LA
Built 2005 Load: 30.8 t ADT: 3,888
LA0127
GoodOver: CREEK
01.34 MILES SOUTHEAST OF, LaSalle, LA
Built 2005 Load: 30.8 t ADT: 3,888
Eaves Rd
GoodOver: W. Branch of Dugdemona
1.2 Mi. W. of LA 507, Lincoln, LA
Built 2021 Load: 30.8 t ADT: 250
Walnut Creek Rd
GoodOver: Walnut Creek
2.6 Miles NW of LA 507, Lincoln, LA
Built 2021 Load: 30.8 t ADT: 250
US0090
GoodOver: EAST SERVICE ROAD
.56 MI SOUTH OF I-10, Orleans, LA
Built 1994 Load: 30.8 t ADT: 7,620
HORACE ST
GoodOver: MAGELLAN CANAL
0.1 MI. N. OF WALL BLVD., Orleans, LA
Built 1988 Load: 30.8 t ADT: 400
ODEON ST
GoodOver: MAGELLAN CANAL
0.1 MI. N. OF WALL BLVD., Orleans, LA
Built 1988 Load: 30.8 t ADT: 400
FARRAGUT ST
GoodOver: MAGELLAN CANAL
0.4 MI N OF GEN. DEGAULLE, Orleans, LA
Built 1988 Load: 30.8 t ADT: 400
NUMA ST
GoodOver: MAGELLAN CANAL
0.4 MI N OF GEN. DEGAULLE, Orleans, LA
Built 1988 Load: 30.8 t ADT: 400
CASA CALVO ST
GoodOver: MAGELLAN CANAL
0.5 M N OF DEGAULLE AVE, Orleans, LA
Built 1990 Load: 30.8 t ADT: 400
I0049
GoodOver: HILL BAYOU
3.09 MI. NORTH OF LA 3250, Rapides, LA
Built 1995 Load: 30.8 t ADT: 53,224
Bennetts Bay Rd
GoodOver: HURRICANE CREEK
2.07 M. S. OF BLUE LAKE R, Rapides, LA
Built 2001 Load: 30.8 t ADT: 100
Brookwood Dr
GoodOver: BAYOU CLEAR
0.01 MI. WEST OF US 165, Rapides, LA
Built 1994 Load: 30.8 t ADT: 150
I0049
GoodOver: HORSESHOE CANAL
0.03 MI. N. OF LA 1208-1, Rapides, LA
Built 1993 Load: 30.8 t ADT: 6,767
MARTHAVILLE RD
GoodOver: HARPOON BAYOU
MARTHAVILLE ROAD, Sabine, LA
Built 1999 Load: 30.8 t ADT: 350
KAREN DR
GoodOver: 20 ARPENT CANAL
0.4 MI N OF LA 39, St. Bernard, LA
Built 2013 Load: 30.8 t ADT: 198
I0310
GoodOver: M P RR
.05 MI SOUTH OF LA 18, St. Charles, LA
Built 1979 Load: 30.8 t ADT: 15,642
US0190
GoodOver: SLOW BAYOU E.B.
5.02 MI EAST OF LA 741, St. Landry, LA
Built 2004 Load: 30.8 t ADT: 13,476
US0190
GoodOver: SLOW BAYOU W.B.
3.00 Mi W of US 71, St. Landry, LA
Built 2005 Load: 30.8 t ADT: 20,176
McElveen Rd
GoodOver: HOPE BRANCH
1.3 MILES NORTHWEST OF JC, Tangipahoa, LA
Built 2011 Load: 30.8 t ADT: 250
I0055
GoodOver: ON RAMP SOUTH US 51
9.9 M S OF LA 22, Tangipahoa, LA
Built 1979 Load: 30.8 t ADT: 8,115
BLACKMON RD
GoodOver: SIX MILE CREEK
0.7 M. SW OF LA 377, Vernon, LA
Built 2002 Load: 30.8 t ADT: 150
COOPER CHURCH RD
GoodOver: CASTOR BAYOU
3.97 M. W. OF US 171, Vernon, LA
Built 2003 Load: 30.8 t ADT: 200
LA0025
GoodOver: DRAIN
1.7 M N OF LA 38, Washington, LA
Built 1963 Load: 30.8 t ADT: 2,272
Shelby Booty Rd
GoodOver: LITTLE SILVER CREEK
0.39 MI NORTH OF LA 1056, Washington, LA
Built 2004 Load: 30.8 t ADT: 375
Max Brumfield Rd
GoodOver: BRIDGE OVER HAY'S CREEK
0.4 MI W. OF PARISH RD 39, Washington, LA
Built 2005 Load: 30.8 t ADT: 227
Catfish House
GoodOver: WOLF CREEK
2.94 MI. NW OF LA 499, Winn, LA
Built 2004 Load: 30.8 t ADT: 130
LA0013
GoodOver: BAYOU PLAQUEMINE
0.9 MILES NORTH OF I-10, Acadia, LA
Built 2008 Load: 31.1 t ADT: 9,371
Bon Terre Blvd
GoodOver: NEW RIVER BAYOU
1.5 MI E I-10-LA 429 JCT, Ascension, LA
Built 1988 Load: 31.1 t ADT: 75
OLD RIVER RD
GoodOver: CANEY CREEK RELIEF
1.8 MI SOUTH OF LA 389, Beauregard, LA
Built 2005 Load: 31.1 t ADT: 70
Danville Rd
GoodOver: DUKEDALL CREEK
3.5 MI. E OF LA 155, Bienville, LA
Built 2006 Load: 31.1 t ADT: 100
LA0082
GoodOver: CANAL
18.7 MI W OF LA3147, Cameron, LA
Built 2002 Load: 31.1 t ADT: 2,899
LA0002
GoodOver: DRAIN
3.34 MI EAST OF JCT LA9, Claiborne, LA
Built 2012 Load: 31.1 t ADT: 2,020
Camp Hardtner Rd
GoodOver: Carson Branch
5.6 M. S. OF JCT. US 165, Grant, LA
Built 2011 Load: 31.1 t ADT: 100
West Napoleon Ave
GoodOver: Soniat Canal
1.3 MI E OF WILLIAMS BLVD, Jefferson, LA
Built 2005 Load: 31.1 t ADT: 21,463
West Napoleon Ave
GoodOver: Soniat Canal
0.06 mi W of David Drive, Jefferson, LA
Built 2005 Load: 31.1 t ADT: 24,341
PATRIOT ST
GoodOver: DRAIN CANAL
0.2 MI E. OF BARATARIA, Jefferson, LA
Built 1970 Load: 31.1 t ADT: 250
W. Canal Dr.
GoodOver: ELMWOOD CANAL
0.4 Mi N of Veterans BLVD, Jefferson, LA
Built 1999 Load: 31.1 t
LA0343
GoodOver: HWY 343 OVER CREEK
0.49 MI S LA 342, Lafayette, LA
Built 2012 Load: 31.1 t ADT: 3,340
Bruce St
GoodOver: ACADIANA CANAL
.08 Mi E of Raymond St, Lafayette, LA
Built 2012 Load: 31.1 t ADT: 436
Stump Rd
GoodOver: STUMP ROAD CREEK
0.1 Mi N of McClendon Ln, LaSalle, LA
Built 2006 Load: 31.1 t ADT: 200
Linder Road
GoodOver: Canal
0.1 MI. N. of LA 1026, Livingston, LA
Built 2020 Load: 31.1 t ADT: 3,615
Hart Rd
GoodOver: BAYOU BOURBEAUX
0.01 MILES NORTH OF LA 48, Natchitoches, LA
Built 2010 Load: 31.1 t ADT: 309
EARHART BLVD EB
GoodOver: EARHART BLVD @ WASH. CAN
.2 MI EAST JEFF DAVIS PKW, Orleans, LA
Built 2005 Load: 31.1 t
EARHART BLVD WB
GoodOver: EARHART BLVD @ WASH. CAN
.2 MI EAST JEFF DAVIS PKW, Orleans, LA
Built 2005 Load: 31.1 t
Showing 7,701-7,750 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 |