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
LA0172
FairOver: LITTLE CREEK
1.4 MI WEST OF LA 169, De Soto, LA
Built 1958 Load: 27.2 t ADT: 1,316
LA0481
FairOver: COW BAYOU RELIEF
4.14 MI NORTH OF LA 191, De Soto, LA
Built 1962 Load: 27.2 t ADT: 469
US0190
FairOver: JONES CREEK
US0190, East Baton Rouge, LA
Built 1958 Load: 27.2 t ADT: 19,515
US0190
FairOver: JONES CREEK
1.20 Mi. E of US 61, East Baton Rouge, LA
Built 1961 Load: 27.2 t ADT: 17,284
Kenilworth Pkwy
FairOver: DAWSON CREEK
0.5 M SW OF LA 427, East Baton Rouge, LA
Built 1973 Load: 27.2 t ADT: 5,125
Morgan Rd
FairOver: DRAINAGE CANAL
0.3 Mi. S. of LA 37, East Baton Rouge, LA
Built 1970 Load: 27.2 t ADT: 1,065
Lemon Rd
FairOver: UNNAMED CREEK
EAST AVE., SLAUGHT L, East Feliciana, LA
Built 1975 Load: 27.2 t ADT: 78
LA0010
FairOver: CREEK
2.4 MI SOUTH OF LA 106, Evangeline, LA
Built 1967 Load: 27.2 t ADT: 1,570
LA0115
FairOver: BAYOU COCODRIE
7.57 MI NORTH OF LA 106, Evangeline, LA
Built 1957 Load: 27.2 t ADT: 711
LA0115
FairOver: Bayou Cocodrie
8.03 MI NORTH OF LA 106, Evangeline, LA
Built 1957 Load: 27.2 t ADT: 711
LA0132
FairOver: TURKEY CREEK
0.80 M W of LA 859, Franklin, LA
Built 1982 Load: 27.2 t ADT: 431
LA0860
FairOver: HURRICANE SLOUGH
0.4 MI WEST OF LA 17, Franklin, LA
Built 1961 Load: 27.2 t ADT: 199
LA0668
FairOver: DELAHOUSSAYE CANAL
0.55 MI NORTH OF LA 671, Iberia, LA
Built 1963 Load: 27.2 t ADT: 3,169
LA0682
FairOver: Malam Branch Canal
1.81 MI NORTH OF LA 675, Iberia, LA
Built 1967 Load: 27.2 t ADT: 750
LA0148
FairOver: CYPRESS BAYOU
6.74 MI WEST OF LA 146, Jackson, LA
Built 1955 Load: 27.2 t ADT: 532
Gloria Switch Rd
FairOver: VERMILION RIVER
1.4 MI EAST OF LA 314, Lafayette, LA
Built 1971 Load: 27.2 t ADT: 8,240
LA0339
FairOver: DRAINAGE CANAL
1.5 Mi. North of LA 92, Lafayette, LA
Built 1957 Load: 27.2 t ADT: 24,186
Tubing Rd.
FairOver: DES POCHES COULEE
0.10 Mi S of US 90 Serv R, Lafayette, LA
Built 1973 Load: 27.2 t ADT: 340
Commission Blvd.
FairOver: COULEE DES POCHES
0.70 MI NE of LA 182, Lafayette, LA
Built 1993 Load: 27.2 t ADT: 760
LA0182
FairOver: BAYOU LAFOURCHE
.01 MI EAST OF LA 1, Lafourche, LA
Built 1936 Load: 27.2 t ADT: 5,783
US0084
FairOver: LA MIDLAND R/R
1.2 MI EAST OF LA 127, LaSalle, LA
Built 1958 Load: 27.2 t ADT: 3,980
LA0503
FairOver: BAYOU FUNNY LOUIS
1.27 MI EAST OF LA 127, LaSalle, LA
Built 1966 Load: 27.2 t ADT: 189
LA0503
FairOver: CREEK
3.4 MI EAST OF LA 127, LaSalle, LA
Built 1966 Load: 27.2 t ADT: 189
HOGAN RD
FairOver: CREEK
LP 405 - HOGAN ROAD, Lincoln, LA
Built 1983 Load: 27.2 t
US0190
FairOver: HOG BRANCH
US0190, Livingston, LA
Built 1932 Load: 27.2 t ADT: 7,126
US0190
FairOver: TICKFAW RIVER RELIEF
US0190, Livingston, LA
Built 1932 Load: 27.2 t ADT: 7,126
US0190
FairOver: BLOOD RIVER
US0190, Livingston, LA
Built 1932 Load: 27.2 t ADT: 4,992
LA0042
FairOver: POLEY BAYOU
0.7 M N OF LA 16, Livingston, LA
Built 1960 Load: 27.2 t ADT: 4,071
US0065
FairOver: WALNUT BAYOU
.15 MI NORTH OF I-20, Madison, LA
Built 1963 Load: 27.2 t ADT: 8,046
US0425
FairOver: LITTLE BONNE IDEE BAYOU
3.0 MI NORTH OF LA 134, Morehouse, LA
Built 1950 Load: 27.2 t ADT: 1,954
US0425
FairOver: BAYOU GALION
6.0 MI NORTH OF LA 134, Morehouse, LA
Built 1950 Load: 27.2 t ADT: 1,954
Charles Dickerson
FairOver: Patten Slough
.23 MI EAST OF LA 593, Morehouse, LA
Built 1963 Load: 27.2 t ADT: 110
SUNSHINE RD
FairOver: BOEUF RIVER
BOEUF R. AT FISKE UN, Morehouse, LA
Built 1977 Load: 27.2 t ADT: 60
LA0485
FairOver: BAYOU PIERRE
5.30 MI E OF JCT 1-49, Natchitoches, LA
Built 1978 Load: 27.2 t ADT: 462
LA0546
FairOver: CLARKS CREEK
1.2 MI NORTH OF LA 151, Ouachita, LA
Built 1953 Load: 27.2 t ADT: 2,010
RICHLAND PLACE
FairOver: BAYOU DESIARD
0.2 MI. E. HWY. 165, Ouachita, LA
Built 1978 Load: 27.2 t ADT: 100
LA0454
FairOver: PILLARS CREEK
2.56 MI. SOUTH OF LA 107, Rapides, LA
Built 1947 Load: 27.2 t ADT: 226
LA3170
FairOver: LATANIER BAYOU
3.78 MI. EAST OF LA 3170, Rapides, LA
Built 1973 Load: 27.2 t ADT: 7,317
Boy Scout Rd
FairOver: MILL CREEK
2.75 MI. SOUTH OF LA 112, Rapides, LA
Built 1984 Load: 27.2 t ADT: 50
Robert Goleman Rd
FairOver: MUDDY BRANCH
0.8 MI. EAST OF LA 121, Rapides, LA
Built 1972 Load: 27.2 t ADT: 45
US0080
FairOver: BEE BAYOU
.2 MI EAST OF LA 583, Richland, LA
Built 1930 Load: 27.2 t ADT: 1,451
LA0584
FairOver: BEE BAYOU
1.8 MI EAST OF US 425, Richland, LA
Built 1954 Load: 27.2 t ADT: 990
LA0191
FairOver: BAYOU SAN MIGUEL
0.94 M N OF S JCT LA 482, Sabine, LA
Built 1967 Load: 27.2 t ADT: 1,210
LA0046
FairOver: BAYOU LALOUTRE
5.4 MI SOUTH OF LA 1245, St. Bernard, LA
Built 1984 Load: 27.2 t ADT: 2,045
LA0448
FairOver: MILL CREEK
LA0448, St. Helena, LA
Built 1962 Load: 27.2 t ADT: 547
LA1045
FairOver: TICKFAW RIVER RELIEF
LA1045, St. Helena, LA
Built 1962 Load: 27.2 t ADT: 1,509
LA1045
FairOver: TICKFAW RIVER RELIEF
LA1045, St. Helena, LA
Built 1962 Load: 27.2 t ADT: 1,509
I0049
FairOver: DRAINAGE CANAL
1.2 Miles South of LA 182, St. Landry, LA
Built 1963 Load: 27.2 t ADT: 3,770
I0049
FairOver: BAYOU BOURBEAU
2.5 MI NORTH OF LA 93, St. Landry, LA
Built 1962 Load: 27.2 t ADT: 41,327
LA0103
FairOver: BAYOU CARRON
1.4 MI NORTH OF US 167, St. Landry, LA
Built 1962 Load: 27.2 t ADT: 2,097
Showing 3,101-3,150 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 |