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
US0167
FairOver: CREEK
1.2 MI NORTH OF LA 505, Jackson, LA
Built 1960 Load: 33.0 t ADT: 8,018
US0167
FairOver: CREEK
2.6 MI NORTH OF LA 505, Jackson, LA
Built 1960 Load: 33.0 t ADT: 8,018
US0090-B
FairOver: ON RAMP FM SERVICE ROAD
1.3 MI WEST OF LA 23, Jefferson, LA
Built 1987 Load: 33.0 t ADT: 15,955
US0090-B
FairOver: ON RAMP FM STUMPF BLVD.
0.7 MI WEST OF LA 23, Jefferson, LA
Built 1987 Load: 33.0 t ADT: 15,955
FDR 337
FairOver: TIGER BRANCH
NATIONAL FOREST ROAD, Natchitoches, LA
Built 1970 Load: 33.0 t ADT: 30
Rapides Station Rd
FairOver: BIG BAYOU
1.0 M SOUTH OF LA 1, Rapides, LA
Built 1989 Load: 33.0 t ADT: 610
US0080
FairOver: BAYOU
3.0 MI EAST OF LA 852, Richland, LA
Built 1953 Load: 33.0 t ADT: 1,451
GARLAND GIN RD
FairOver: MILL CREEK
.3 MI. NE INT. 426, Union, LA
Built 1983 Load: 33.0 t ADT: 1,077
ALLEN MANN RD
FairOver: DRAIN TO D'ARBONNE LAKE
.7 MI. SE INT. 343, Union, LA
Built 1983 Load: 33.0 t ADT: 317
STANSBURY RD
FairOver: DRAIN TO D'ARBONNE LAKE
1.1 MI. N. INT. 269, Union, LA
Built 1983 Load: 33.0 t ADT: 201
COTTONWOOD RD
FairOver: POCOSIN CREEK
3.4 M. S. OF JIM CRYER RD, Vernon, LA
Built 1987 Load: 33.0 t
I0010
FairOver: BAYOU CHOCTAW
I0010, West Baton Rouge, LA
Built 1974 Load: 33.0 t ADT: 80,618
LA0126
FairOver: FLAT CREEK TRIBUTARY
0.44 MILE WEST OF LA 499, Winn, LA
Built 1996 Load: 33.0 t ADT: 477
Armand Rd
FairOver: WEST LEVEE BORROW PIT
0.3 MI. EAST OF LA 107, Avoyelles, LA
Built 1984 Load: 33.4 t ADT: 200
US0190
FairOver: DRAIN
3.3 MILES EAST OF LA 3226, Beauregard, LA
Built 2013 Load: 33.4 t ADT: 3,187
TOM HEBERT RD
FairOver: CANAL
2.8 MI N OF HELMS RD., Calcasieu, LA
Built 1990 Load: 33.4 t ADT: 2,191
I0010
FairOver: WARD CR DIVERSION CANAL
I0010, East Baton Rouge, LA
Built 1974 Load: 33.4 t ADT: 137,847
I0010
FairOver: WARD CR DIVERSION CANAL
I0010, East Baton Rouge, LA
Built 1974 Load: 33.4 t ADT: 32,092
I0010
FairOver: DUNCAN CANAL
2.7 MI EAST OF I-310, Jefferson, LA
Built 1967 Load: 33.4 t ADT: 126,119
I0010
FairOver: DUNCAN CANAL
2.7 MI EAST OF I-310, Jefferson, LA
Built 1967 Load: 33.4 t ADT: 41,695
Golf Dr.
FairOver: CITY PARK LAGOON
0.1 MI.N.OF STADIUM, Orleans, LA
Built 1939 Load: 33.4 t
JACK BONNETT RD
FairOver: ROGERS CREEK
2 MI. S. E. CADEVILLE, Ouachita, LA
Built 1983 Load: 33.4 t ADT: 31
FORTUNE DR
FairOver: BAYOU DESIARD
BAYOU DESIARD, Ouachita, LA
Built 1990 Load: 33.4 t ADT: 1,616
PARISH FARM RD
FairOver: BEE BAYOU
0.6 MI E of US 425, Richland, LA
Built 2002 Load: 33.4 t ADT: 100
LA3127
FairOver: UNION CARBIDE CANAL
.6 MI EAST OF LA 3142, St. Charles, LA
Built 1975 Load: 33.4 t ADT: 6,703
Guillory Rd
FairOver: Bayou Mallet
1.0 Mi. S. of US 190, St. Landry, LA
Built 1986 Load: 33.4 t ADT: 300
COMBON BRIDGE RD
FairOver: GRAND CAILLOU BAYOU
0.08 MI WEST OF LA 57, Terrebonne, LA
Built 1990 Load: 33.4 t ADT: 1,566
OAKLAND BRIDGE RD
FairOver: BAYOU DELOUTRE
3.0 MI E of LA 558, Union, LA
Built 2004 Load: 33.4 t ADT: 324
Haydel Rd
FairOver: DRAIN BAYOU
3 MI.SW LA22,LA22,LA44 JC, Ascension, LA
Built 1997 Load: 33.6 t ADT: 50
LA0792
FairOver: BLACKLAKE BAYOU
2.96 MI N OF LA 4, Bienville, LA
Built 2000 Load: 33.6 t ADT: 473
I0220
FairOver: FLAT RIVER
3.9 MI EAST OF LA 3105, Bossier, LA
Built 1978 Load: 33.6 t ADT: 25,004
LA0538
FairOver: CADDO LAKE
.34 MI NORTH OF LA 767, Caddo, LA
Built 1994 Load: 33.6 t ADT: 1,182
LA3132
FairOver: BRUSH BAYOU
1.5 MI. W. OF I-49, Caddo, LA
Built 1979 Load: 33.6 t ADT: 23,520
LA3132
FairOver: BAYOU PIERRE
0.6 MI. E. OF LA 523, Caddo, LA
Built 1977 Load: 33.6 t ADT: 53,886
I0020
FairOver: DRAIN
2.1 MI WEST OF LA 169, Caddo, LA
Built 1964 Load: 33.6 t ADT: 98,318
I0020
FairOver: DRAIN
2.1 MI WEST OF LA 169, Caddo, LA
Built 1964 Load: 33.6 t ADT: 98,318
I0020
FairOver: MARION ST
.2 MI EAST OF US 80, Caddo, LA
Built 1965 Load: 33.6 t ADT: 98,318
LA0124
FairOver: LITTLE RIVER
.22 MI NORTH OF US 84, Catahoula, LA
Built 1978 Load: 33.6 t ADT: 2,659
LA0175
FairOver: RAMBIN BAYOU
.4 MI EAST OF I-49, De Soto, LA
Built 1980 Load: 33.6 t ADT: 1,142
I0010
FairOver: S. Acadian Thru. on Ramp
2.4 M W of I-12, East Baton Rouge, LA
Built 1964 Load: 33.6 t ADT: 8,250
I0010
FairOver: OFF RAMP TO ACADIAN THRU
I0010, East Baton Rouge, LA
Built 1964 Load: 33.6 t ADT: 1,946
LA0104
FairOver: BAYOU NEZPIQUE
3.3 MI WEST OF LA 3277, Evangeline, LA
Built 1971 Load: 33.6 t ADT: 1,157
LA0104
FairOver: BAYOU
2.2 MI WEST OF LA 3277, Evangeline, LA
Built 1971 Load: 33.6 t ADT: 1,157
LA0095
FairOver: BAYOU DES CANNES
4.52 MI EAST OF LA 104, Evangeline, LA
Built 1965 Load: 33.6 t ADT: 1,107
US0090
FairOver: LEWIS STREET
1.15 Mi W of LA 83, Iberia, LA
Built 2000 Load: 33.6 t ADT: 10,090
I0010
FairOver: WHISKEY BAY CHANNEL
I0010, Iberville, LA
Built 1972 Load: 33.6 t ADT: 42,449
I0010
FairOver: I-10 RAMP
0.2 M E of LA 975, Iberville, LA
Built 1972 Load: 33.6 t ADT: 557
LA0548
FairOver: FLAT CREEK
2.58 MI EAST OF LA 34, Jackson, LA
Built 1949 Load: 33.6 t ADT: 280
LA0548
FairOver: CREEK REL BR
2.97 MI EAST OF LA 34, Jackson, LA
Built 1949 Load: 33.6 t ADT: 280
LA3139
FairOver: PARISH LINE OVERPASS
2.5 MI EAST OF LA 3152, Jefferson, LA
Built 1982 Load: 33.6 t ADT: 55,872
Showing 4,501-4,550 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 |