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
Musson Ln
GoodOver: LEVEE BAR PIT
1.2 MILES WEST OF LA.76 O, Iberville, LA
Built 2014 Load: 33.7 t ADT: 15
LA0542
GoodOver: CREEK
5.01 MI. E OF US 167, Jackson, LA
Built 2012 Load: 33.7 t ADT: 485
Greens Creek Rd
GoodOver: GREENS CREEK
LOG MI. 1.96 FR 319 TO OD, LaSalle, LA
Built 2009 Load: 33.7 t ADT: 150
LA0835
GoodOver: CAMP BAYOU
6.0 MILES EAST OF US 165, Morehouse, LA
Built 2013 Load: 33.7 t ADT: 366
LA0835
GoodOver: CREEK
6.36 MILES EAST OF US 165, Morehouse, LA
Built 2013 Load: 33.7 t ADT: 366
LA0118
GoodOver: BIG BRANCH
4.71 MI. EAST OF LA 117, Natchitoches, LA
Built 1998 Load: 33.7 t ADT: 164
Emmanuel Rd
GoodOver: MILL CREEK
1.5 MILES WEST OF LA 490, Natchitoches, LA
Built 1997 Load: 33.7 t ADT: 352
Emmanuel Rd
GoodOver: COMITTE BAYOU
3.1 MILES SW OF LA 1, Natchitoches, LA
Built 1997 Load: 33.7 t ADT: 282
Allen Marthaville
GoodOver: BAYOU TERRE BLANC
3.25 M. N. OF LA 120, Natchitoches, LA
Built 1993 Load: 33.7 t ADT: 32
Bethany Rd
GoodOver: ROCKS CREEK
0.25 M. N. OF END MAINT., Natchitoches, LA
Built 1993 Load: 33.7 t ADT: 242
LEON C SIMON DR
GoodOver: LONDON AVENUE CANAL
0.05 MI EAST OF PRATT DR, Orleans, LA
Built 2001 Load: 33.7 t
WOOD ST
GoodOver: CROCODILE CR
1.6 MI W OF US 165, Ouachita, LA
Built 2017 Load: 33.7 t ADT: 188
BELAIR PUMP RD
GoodOver: BELAIR PUMP STAION
0.5 MI EAST OF LA 39, Plaquemines, LA
Built 2014 Load: 33.7 t
Cheneyville Cutoff
GoodOver: CHATLIN LAKE CANAL
2.4 MI. WEST OF LA 1, Rapides, LA
Built 2003 Load: 33.7 t ADT: 450
AILSTOCK RD
GoodOver: BEAR CREEK
0.87 MI. WEST OF LA 191, Sabine, LA
Built 1986 Load: 33.7 t ADT: 80
LA0686
GoodOver: CREEK
4.60 Mi N of LA 347/678, St. Martin, LA
Built 2013 Load: 33.7 t ADT: 3,212
Newlight Rd
GoodOver: TENSAS RIVER
0.06 MI N OF LA 4, Tensas, LA
Built 1999 Load: 33.7 t ADT: 92
LA0184
GoodOver: LIBERTY CREEK
1.36 MI. SOUTH OF LA 468, Vernon, LA
Built 2010 Load: 33.7 t ADT: 1,234
COMRADE RD
GoodOver: ALLEN BRANCH
1.56 M. E. OF LA 465, Vernon, LA
Built 1992 Load: 33.7 t ADT: 250
LA0025
GoodOver: DRAIN
1.6 M N OF LA 38, Washington, LA
Built 1963 Load: 33.7 t ADT: 2,272
Luke Pace Rd
GoodOver: STUBBS CREEK
.80 TENTHS E JCT 438&1070, Washington, LA
Built 2002 Load: 33.7 t ADT: 403
N Bryan Ave
GoodOver: NEW RIVER BAYOU
0.5 MILE S. US 61, Ascension, LA
Built 1986 Load: 34.0 t ADT: 25
Voorhies Crossing
GoodOver: BAYOU DES GLAISES
0.01 MI. EAST OF LA 451, Avoyelles, LA
Built 2013 Load: 34.0 t ADT: 150
Main St
GoodOver: BAYOU DES GLAISES
0.1 MI. NORTH OF LA 114, Avoyelles, LA
Built 2010 Load: 34.0 t ADT: 410
LA0001
GoodOver: ROSEAU BAYOU
0.08 MI. NORTH OF LA 114, Avoyelles, LA
Built 1965 Load: 34.0 t ADT: 4,686
Moses Ln
GoodOver: DRAINAGE CANAL
0.7 MI. EAST OF LA 1, Avoyelles, LA
Built 1998 Load: 34.0 t ADT: 150
I0049
GoodOver: HOSSTON RIVER RD.
2.14 M. N. OF US 71, Caddo, LA
Built 2014 Load: 34.0 t ADT: 53,023
I0049
GoodOver: HOSSTON RIVER RD.
2.14 M. NORTH OF US 71, Caddo, LA
Built 2014 Load: 34.0 t ADT: 6,846
Bostwick Rd
GoodOver: CHOCTAW BAYOU
0.7 MI WEST OF LA 173, Caddo, LA
Built 2013 Load: 34.0 t ADT: 180
Greenwood Cem Rd
GoodOver: TRIB. TO CYPRESS BAYOU
0.5 MILES EAST OF LA 169, Caddo, LA
Built 2007 Load: 34.0 t ADT: 80
LA0082
GoodOver: CANAL
17.9 MI E of LA 27, Cameron, LA
Built 2000 Load: 34.0 t ADT: 2,899
LA0082
GoodOver: CANAL
16.7 MI W OF LA3147, Cameron, LA
Built 2002 Load: 34.0 t ADT: 2,899
Old Columbia Rd
GoodOver: SUGAR CREEK
1.3 Mi E of Catahula Ch R, Catahoula, LA
Built 2000 Load: 34.0 t ADT: 50
Nubin Ridge Rd
GoodOver: MOCCASIN CREEK
1.6 MI. EAST OF LA 481, De Soto, LA
Built 2005 Load: 34.0 t ADT: 50
I0010
GoodOver: KCS RAILROAD
2.3 MILES EAST OF LA 3246, East Baton Rouge, LA
Built 2013 Load: 34.0 t ADT: 82,333
I0010
GoodOver: KCS RAILROAD
2.3 MILES EAST OF LA 3246, East Baton Rouge, LA
Built 2013 Load: 34.0 t ADT: 32,092
Havard St
GoodOver: ASH SLOUGH
LOG MI 0.28 FR 002 TO 003, Franklin, LA
Built 2007 Load: 34.0 t ADT: 500
Grays Creek Rd
GoodOver: MOCCASIN BRANCH
1.36 MILES N JCT LA 1241, Grant, LA
Built 2009 Load: 34.0 t ADT: 250
LA0014
GoodOver: DELCHAMBRE CANAL
0.32 MI EAST OF LA 330, Iberia, LA
Built 2001 Load: 34.0 t ADT: 12,347
Bayou Rd
GoodOver: Murphy Canal
0.01 Mi. E. of LA 3017, Jefferson, LA
Built 2020 Load: 34.0 t ADT: 400
WICHERS DR
GoodOver: AVENUE D CANAL
.35 SOUTH OF W.B. EXPWY, Jefferson, LA
Built 1990 Load: 34.0 t
MEDICAL CENTER BLV
GoodOver: AVENUE D CANAL
.30 MI SO. OF W.B. EXPWY, Jefferson, LA
Built 1990 Load: 34.0 t
W. Metairie Ave
GoodOver: CANAL NUMBER 5
0.01 M N OF W. METAIRIE A, Jefferson, LA
Built 2000 Load: 34.0 t
TV TOWER RD.
GoodOver: SERPENT BAYOU
1.6 MI E of LA 383, Jefferson Davis, LA
Built 2013 Load: 34.0 t ADT: 575
Landsdowne Way
GoodOver: DRAIN
0.2 Mi SE of Albion Way, Lafayette, LA
Built 2008 Load: 34.0 t ADT: 128
S. Satsuma
GoodOver: CREEK
2 MILES SOUTH OF I-12, Livingston, LA
Built 2013 Load: 34.0 t ADT: 2,200
Good Hope Rd
GoodOver: BAYOU LUCE
2.1 MI SOUTH OF LA 120, Natchitoches, LA
Built 2012 Load: 34.0 t ADT: 76
Good Hope Rd
GoodOver: KISATCHIE BAYOU
1.1 MI. SOUTH OF LA 120, Natchitoches, LA
Built 2012 Load: 34.0 t ADT: 76
Rocks Creek Rd
GoodOver: ROCK'S CREEK
0.7 MI. WEST OF LA 487, Natchitoches, LA
Built 2013 Load: 34.0 t ADT: 75
MacArthur BLVD
GoodOver: MAGELLAN CANAL
0.1MI.W.OF HOLIDAY D, Orleans, LA
Built 1960 Load: 34.0 t
Showing 8,851-8,900 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 |