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
SAM CLOUD RD
FairOver: SARGENT CREEK
2.3 MI EAST OF LA 112, Allen, LA
Built 2003 Load: 38.2 t ADT: 985
Lil California Rd
FairOver: DRAINAGE CANAL
1.39 M. E. OF END LA 1194, Avoyelles, LA
Built 1984 Load: 38.2 t ADT: 100
LONGVILLE RD
FairOver: CANEY CREEK
3.2 MI E OF US 171, Beauregard, LA
Built 1986 Load: 38.2 t ADT: 220
N BEARHEAD RD
FairOver: GUM SLOUGH CREEK
4.7 MI W of LA 27, Beauregard, LA
Built 2005 Load: 38.2 t ADT: 50
LUMAS RD
FairOver: BEE MOUTH BRANCH CREEK
2.1 MI E of US 171, Beauregard, LA
Built 2005 Load: 38.2 t ADT: 50
MCDONALD RD
FairOver: SUGAR CREEK
1.0 MI E. OF LA 113, Beauregard, LA
Built 2005 Load: 38.2 t ADT: 190
FRANKLIN RD
FairOver: PALMETTO CREEK
0.9 M N OF GRANBERRY RD, Beauregard, LA
Built 2005 Load: 38.2 t ADT: 160
FRANKLIN RD
FairOver: CREEK
1.0 M N OF GRANBERRY RD, Beauregard, LA
Built 2005 Load: 38.2 t ADT: 160
LA0154
FairOver: BLACK LAKE RELIEF
.57 MI NORTH OF US 80, Bienville, LA
Built 1971 Load: 38.2 t ADT: 1,489
LA0526
FairOver: SAND BEACH BAYOU
.96 MI N OF JCT LA 3132, Caddo, LA
Built 1977 Load: 38.2 t ADT: 19,314
LA0526
FairOver: SAND BEACH BAYOU
096 MI NO OF JCT LA 3132, Caddo, LA
Built 1977 Load: 38.2 t ADT: 19,314
FRIESEN RD
FairOver: GOVERNMENT DITCH 011
0.5 MI EAST OF LA 397, Calcasieu, LA
Built 2001 Load: 38.2 t ADT: 131
HOLBROOK PARK RD
FairOver: LITTLE RIVER
2.8 MI E of LA 27, Calcasieu, LA
Built 1998 Load: 38.2 t ADT: 618
US0165
FairOver: LITTLE BLACK BAYOU
0.05 M N of LA 506, Caldwell, LA
Built 2004 Load: 38.2 t ADT: 13,633
LA0028
FairOver: BAYOU BOEUF
4.38 M E OF E JCT. LA 121, Rapides, LA
Built 2005 Load: 38.2 t ADT: 9,482
LA0028
FairOver: BAYOU BOEUF
4.38 MI EAST OF LA 121, Rapides, LA
Built 2003 Load: 38.2 t ADT: 8,811
Browns Village Rd
FairOver: BAYOU VINCENT BRIDGE
.1 MI N. JCT I-10 & US 11, St. Tammany, LA
Built 1986 Load: 38.2 t ADT: 4,561
Davis Landing Rd
FairOver: GUM BAYOU BRIDGE
0.2 MI EAST OF 1090, St. Tammany, LA
Built 1986 Load: 38.2 t ADT: 1,392
LA1054
FairOver: SPRING CREEK
0.99 MILES EAST OF JCT US, Tangipahoa, LA
Built 2008 Load: 38.2 t ADT: 1,235
E. Bell Rd
FairOver: LITTLE CHAPIPEELA CREEK
4.0M SW OF JCT 16 & 445, Tangipahoa, LA
Built 1992 Load: 38.2 t ADT: 248
LA0022
FairOver: BAYOU CONWAY
0.1 M NORTH I-10 & LA 22, Ascension, LA
Built 1990 Load: 38.6 t ADT: 11,127
LA0114
FairOver: BAYOU DES CYPRAIRRES
1.45 MI N OF LA 1185, Avoyelles, LA
Built 1988 Load: 38.6 t ADT: 3,984
LA0726
FairOver: COULEE BEAU
0.01 MI EAST OF LA 182, Lafayette, LA
Built 2005 Load: 38.6 t ADT: 13,175
LA1268
FairOver: STAULKINGHEAD CREEK
1.4 MI. W. of US 165, Morehouse, LA
Built 1983 Load: 38.6 t ADT: 8,914
West River Rd
FairOver: PRAIRIE BRANCH
.8 MILE SOUTH JCT LA 113, Rapides, LA
Built 2005 Load: 38.6 t ADT: 115
Butter Cemetery Rd
FairOver: HURRICANE CREEK
2.6 MILES SE OF LA 497, Rapides, LA
Built 2005 Load: 38.6 t ADT: 250
Carroll Creek Rd
FairOver: FORKED PINE BRANCH
2.6 MI. NORTH OF LA 155, Red River, LA
Built 1985 Load: 38.6 t ADT: 141
NIELSON RD
FairOver: SERPENT BAYOU
1.0 MI W of LA 99, Allen, LA
Built 2000 Load: 38.9 t ADT: 61
New Home Rd
FairOver: SUGAR CREEK
3.55 MI SW OF LA HWY 9, Claiborne, LA
Built 1990 Load: 38.9 t ADT: 140
New Home Rd
FairOver: FRANKS CREEK
3.7M WEST OF LA 9, Claiborne, LA
Built 1991 Load: 38.9 t ADT: 140
LA0004
FairOver: HALFWAY CREEK
1.7 MI WEST OF LA 811, Jackson, LA
Built 2005 Load: 38.9 t ADT: 2,987
LA0004
FairOver: BROWN CREEK
1.19 MI EAST OF LA 505, Jackson, LA
Built 2005 Load: 38.9 t ADT: 2,992
W. Bayou Pkwy
FairOver: MINE COULEE CUT-OFF CANA
0.47M WEST OF LA 3025, Lafayette, LA
Built 1993 Load: 38.9 t ADT: 5,000
MILLARD HILL RD
FairOver: STOWE CREEK
4.9 MI EAST INT RT 278, Union, LA
Built 1987 Load: 38.9 t ADT: 138
Old Delhi Rd
FairOver: HURRICANE BAYOU
.5 MI.ESE. HWY. 17, West Carroll, LA
Built 1984 Load: 38.9 t ADT: 1,200
LA0092
FairOver: CANAL
3.30 MI E of LA 1124, Acadia, LA
Built 1975 Load: 39.0 t ADT: 1,274
LA0367
FairOver: BAYOU MALLET
2.87 MI NORTH OF LA 370, Acadia, LA
Built 1981 Load: 39.0 t ADT: 2,054
LA0070
FairOver: GRAND BAYOU
LA0070, Assumption, LA
Built 1958 Load: 39.0 t ADT: 5,760
LA0996
FairOver: BAYOU CREAUX
LA0966, Assumption, LA
Built 1973 Load: 39.0 t ADT: 524
LA0996
FairOver: BRUSLY ST.MARTIN C.
LA0996, Assumption, LA
Built 1973 Load: 39.0 t ADT: 524
LA0012
FairOver: COW PEN CREEK
8.03 MI. E OF E INT LA27, Beauregard, LA
Built 1993 Load: 39.0 t ADT: 4,041
DON PLUSH RD
FairOver: TROUT CREEK
1.3 MI N of US 190, Beauregard, LA
Built 2006 Load: 39.0 t ADT: 360
LA0517
FairOver: BEAR CREEK
0.06 MI W JCT LA 9, Bienville, LA
Built 1983 Load: 39.0 t ADT: 301
LA0516
FairOver: CREEK
2.64 MI EAST OF LA 154, Bienville, LA
Built 1980 Load: 39.0 t ADT: 178
LA0790
FairOver: GRAND BAYOU
0.5 MI WEST OF US 371, Bienville, LA
Built 1983 Load: 39.0 t ADT: 50
LA0614
FairOver: FOXSKIN BAYOU
0.2 MI EAST OF LA 157, Bossier, LA
Built 1982 Load: 39.0 t ADT: 1,148
I0220
FairOver: MACK'S BAYOU
2.6 MI EAST OF LA 3105, Bossier, LA
Built 1978 Load: 39.0 t ADT: 25,004
I0220
FairOver: MACK'S BAYOU
2.6 MI EAST OF LA 3105, Bossier, LA
Built 1978 Load: 39.0 t ADT: 25,004
LA0529
FairOver: PHILLIPS CREEK
.43 MI NORTH OF LA 160, Bossier, LA
Built 1973 Load: 39.0 t ADT: 494
LA0538
FairOver: CREEK
2.02 MI NORTH OF LA 767, Caddo, LA
Built 1980 Load: 39.0 t ADT: 1,273
Showing 5,251-5,300 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 |