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
LA0431
PoorOver: NEW RIVER
1.37 MI NE JCT US 61, Ascension, LA
Built 1982 Load: 21.4 t ADT: 9,608
Bentley Dr
PoorOver: WHITE BAYOU
1.4M W OF INT LA 67, East Baton Rouge, LA
Built 1970 Load: 21.4 t ADT: 2,210
US0071
PoorOver: BAYOU RIGOLETTE
1.1 MI NORTH OF LA 492, Grant, LA
Built 1950 Load: 21.4 t ADT: 2,063
Lake Forest BLVD
PoorOver: LAWRENCE CANAL
0.1 MI. E. OF BENTLE, Orleans, LA
Built 1975 Load: 21.4 t
9th St
PoorOver: ST LOUIS CANAL
0005 LOG MI FROM INT, Terrebonne, LA
Built 1965 Load: 21.4 t ADT: 3,492
Brassette Ln
PoorOver: SPRING CREEK
1.63 M E OF JCT LA 362, Avoyelles, LA
Built 1998 Load: 21.6 t ADT: 40
Catfish Kitchen Rd
PoorOver: BAYOU BOEUF
APP. 0.5 MI. S. OF LA 115, Avoyelles, LA
Built 1997 Load: 21.6 t ADT: 60
Lil California Rd
PoorOver: DRAINAGE CANAL
2.11 M. E. OF END LA 1194, Avoyelles, LA
Built 1960 Load: 21.6 t ADT: 100
Stillhouse Rd
PoorOver: Stillhouse Bayou Trib
1.4 M NORTH OF HWY 537, Bossier, LA
Built 1991 Load: 21.6 t ADT: 40
Percy Dreher Rd
PoorOver: LITTLE SANDY CREEK
1.6 MI SW JCT LA959,LA409, East Feliciana, LA
Built 1999 Load: 21.6 t ADT: 18
LA0563
PoorOver: CREEK
3.29 MI NORTH OF LA 544, Lincoln, LA
Built 1973 Load: 21.6 t ADT: 1,064
Phoenix square
PoorOver: CREEK
1.4 MI SE OF RT 190, Tangipahoa, LA
Built 1975 Load: 21.6 t ADT: 5,021
LA0431
PoorOver: VILLAR DRAINAGE
400 FT S of LA 42, Ascension, LA
Built 1971 Load: 21.7 t ADT: 9,608
LA1014
PoorOver: VALANCE DRAINAGE CANAL
3.3 Mi. E of LA 308, Assumption, LA
Built 1974 Load: 21.7 t ADT: 304
LA0517
PoorOver: CREEK
3.99 MI WEST OF LA 9, Bienville, LA
Built 1973 Load: 21.7 t ADT: 438
LA0154
PoorOver: RED CHUTE BAYOU
.01 MI SOUTH OF LA 157, Bossier, LA
Built 1980 Load: 21.7 t ADT: 3,124
LA3258
PoorOver: BAYOU
0.7 MI E of LA 383, Calcasieu, LA
Built 1969 Load: 21.7 t ADT: 1,878
Nottingham St
PoorOver: DRAINAGE CANAL
NOTTINGHAM ST., East Baton Rouge, LA
Built 1963 Load: 21.7 t ADT: 300
US0167
PoorOver: MOSLEY MILL CREEK
3.56 MI. NORTH OF LA 472, Grant, LA
Built 1975 Load: 21.7 t ADT: 11,712
I0010
PoorOver: VET MEM HWY
1.8 MI EAST OF LA 49, Jefferson, LA
Built 1967 Load: 21.7 t ADT: 137,542
STANLEY ROAD
PoorOver: ROGERS GULLY
1.66 MI E of LA 26, Jefferson Davis, LA
Built 1980 Load: 21.7 t ADT: 30
LA0040
PoorOver: SCOTT CREEK
2.6 M W OF LA 1062, Tangipahoa, LA
Built 1970 Load: 21.7 t ADT: 4,748
LA0983
PoorOver: TIGER BAYOU
4.13 MI N JCT US 61, West Baton Rouge, LA
Built 1983 Load: 21.7 t ADT: 2,000
US0090
PoorOver: KAYOUCHE COULEE
0.7 MI E OF LA 14, Calcasieu, LA
Built 1958 Load: 22.0 t ADT: 6,080
WEST 18TH STREET
PoorOver: GUM CREEK
0.6 MI W of LA 385, Calcasieu, LA
Built 1965 Load: 22.0 t ADT: 4,078
Bailey Town Rd
PoorOver: BAILEY TN RD,LTL CRNY B
6.82 MI. E. OF LA. 2, Claiborne, LA
Built 1975 Load: 22.0 t ADT: 65
Neff Ln
PoorOver: DRAINAGE BAYOU
3.1 MI.ENE LA64,LA67, East Baton Rouge, LA
Built 1965 Load: 22.0 t ADT: 22
LA0123
PoorOver: FISH CREEK
7.27 MI EAST OF US 167, Grant, LA
Built 1974 Load: 22.0 t ADT: 595
LA3046
PoorOver: LA SOU/KCS RR & CLAIBORN
0.85 MI N OF US 90, Jefferson, LA
Built 1957 Load: 22.0 t ADT: 7,806
LA0621
PoorOver: BLACK BAYOU
0.2 M E of LA 44&LA 621, Ascension, LA
Built 1971 Load: 22.4 t ADT: 7,519
LA0067
PoorOver: Hurricane Creek
0.01 Mi E of LA 1, East Baton Rouge, LA
Built 1956 Load: 22.4 t ADT: 19,417
Brian Rd
PoorOver: DRAINAGE BAYOU
2.6 MI N.JCT LA 64 L, East Baton Rouge, LA
Built 1965 Load: 22.4 t ADT: 197
Orleans Ave
PoorOver: BAYOU SAINT JOHN
0.01MI.E OF N. JEFF.D, Orleans, LA
Built 1964 Load: 22.4 t
Orleans Ave
PoorOver: BAYOU SAINT JOHN
0.0 MI.E.OF N. JEFF., Orleans, LA
Built 1964 Load: 22.4 t
Ches Courville Rd
PoorOver: NICOLE COULEE
0.1 Mi. S of LA 352, St. Martin, LA
Built 1975 Load: 22.4 t ADT: 166
US0080
PoorOver: DORCHEAT RELIEF
.5 MI EAST OF US 371, Webster, LA
Built 1954 Load: 22.4 t ADT: 9,109
LA1180
PoorOver: BAYOU DUBROCK
0.7 MILE SOUTH OF LA 1179, Avoyelles, LA
Built 1978 Load: 22.7 t ADT: 213
Brassette Ln
PoorOver: DITCH
0.69 MI E OF JCT LA 362, Avoyelles, LA
Built 1998 Load: 22.7 t ADT: 40
LA0397
PoorOver: ENGLISH BAYOU
0.3 MI N of I-10, Calcasieu, LA
Built 1963 Load: 22.7 t ADT: 9,291
W. METAIRIE AVE
PoorOver: SUBURBAN CANAL
0.1MI.E.OF HOUMA BLV, Jefferson, LA
Built 1968 Load: 22.7 t ADT: 24,900
BRYAN ROAD
PoorOver: BAYOU GRAND
1.9 MI W of LA 26, Jefferson Davis, LA
Built 1977 Load: 22.7 t ADT: 30
US0084
PoorOver: CASTOR CREEK
.01 MI EAST OF US 165, LaSalle, LA
Built 1962 Load: 22.7 t ADT: 1,473
LA0156
PoorOver: CREEK
9.7 MI. E OF INT LA9, Natchitoches, LA
Built 1926 Load: 22.7 t ADT: 525
LA0034
PoorOver: CHENIERE CREEK
2.35 MI EAST OF LA 546, Ouachita, LA
Built 1970 Load: 22.7 t ADT: 8,694
LA0174
PoorOver: BAYOU-SAN-PATRICIO
0.44 M. E. OF US 171, Sabine, LA
Built 1977 Load: 22.7 t ADT: 1,099
LA1040
PoorOver: YELLOW WATER RIVER
4.7 Mi E of La 43, Tangipahoa, LA
Built 1958 Load: 22.7 t ADT: 7,190
LA0443
PoorOver: SKULLS CREEK
0.1 M N OF LA 1064, Tangipahoa, LA
Built 1954 Load: 22.7 t ADT: 6,478
Narretto Rd
PoorOver: BRUSHY BRANCH
3 MI NE OF JCT 1064, Tangipahoa, LA
Built 1975 Load: 22.7 t ADT: 359
LA0082
PoorOver: TOUCHETS CANAL
0.29 MI W. OF LA 35, Vermilion, LA
Built 1957 Load: 22.7 t ADT: 2,899
LA0082
PoorOver: CANAL
3.22 MI W. OF LA 35, Vermilion, LA
Built 1957 Load: 22.7 t ADT: 2,899
Showing 11,901-11,950 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 |