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
LA0490
FairOver: CANE RIVER @ MARCO
1.39 MI. S OF INT 3279, Natchitoches, LA
Built 1985 Load: 36.3 t ADT: 138
Goldonna Rd
FairOver: LITTLE FORDOCHE CREEK
6 M. N. OF END MAINT. LA, Natchitoches, LA
Built 1995 Load: 36.3 t ADT: 233
I0010
FairOver: I-10 EAST & WEST US90
3.4 MI EAST OF LA 39, Orleans, LA
Built 1966 Load: 36.3 t ADT: 7,620
Lake Forest BLVD
FairOver: CITRUS CANAL
0.2MI.E.OF BUNDY RD., Orleans, LA
Built 1960 Load: 36.3 t
LA0023
FairOver: I C WATERWAY
.2 MI SOUTH OF LA 3017, Plaquemines, LA
Built 1968 Load: 36.3 t ADT: 29,088
LA0028
FairOver: HEMPHILL CREEK
8.82 MI. EAST OF LA 465, Rapides, LA
Built 1973 Load: 36.3 t ADT: 7,065
LA0028
FairOver: DIVERSION CANAL
2.18 MI. EAST OF LA 3054, Rapides, LA
Built 1949 Load: 36.3 t ADT: 28,087
US0080
FairOver: STEEP BAYOU
.5 MI EAST OF LA 595, Richland, LA
Built 1953 Load: 36.3 t ADT: 2,747
MOORE RD
FairOver: CREEK
LOGMI 2.51 FR 144 TO, Richland, LA
Built 1984 Load: 36.3 t ADT: 100
I0055
FairOver: I 55 SOUTH ON RAMP RUDDC
0.1 M W OF US 51, St. John the Baptist, LA
Built 1975 Load: 36.3 t ADT: 8,115
US0190
FairOver: BAYOU DOZA
1.0 MI EAST OF LA 758, St. Landry, LA
Built 1969 Load: 36.3 t ADT: 8,492
LA3043
FairOver: BAYOU PLAQUEMINE NE
2.29 MI NORTH OF LA 104, St. Landry, LA
Built 1971 Load: 36.3 t ADT: 1,730
Beatrice Rd
FairOver: Drainage Canal
0.4 Mi. N of LA 365, St. Landry, LA
Built 2002 Load: 36.3 t ADT: 50
LA0092
FairOver: LASALLE COULEE
1.5 MI East of US 90, St. Martin, LA
Built 1973 Load: 36.3 t ADT: 2,452
LA0096
FairOver: CATAHOULA LAKE BRIDGE
8.0 Mi N of LA 679, St. Martin, LA
Built 1994 Load: 36.3 t ADT: 8,684
US0090
FairOver: FRANKLIN CANAL
0.76 Mi SE of LA 3211, St. Mary, LA
Built 1979 Load: 36.3 t ADT: 11,104
US0090
FairOver: FRANKLIN CANAL
4.50 Mi W of LA 3215, St. Mary, LA
Built 1979 Load: 36.3 t ADT: 10,063
Ovey Rd
FairOver: CANAL
1.0 miles West of Joe Rd., Vermilion, LA
Built 2016 Load: 36.3 t ADT: 50
Pressley Rd
FairOver: GRANGES COULEE
0.1 Mi S of LA 92, Vermilion, LA
Built 2011 Load: 36.3 t ADT: 291
LA0028
FairOver: CYPRESS BAYOU
3.9 MI EAST OF LA 465, Vernon, LA
Built 1973 Load: 36.3 t ADT: 7,065
LA0038
FairOver: BOGUE CHITTO
LA0038, Washington, LA
Built 1973 Load: 36.3 t ADT: 1,706
Old Highway 7
FairOver: TRIB TO DORCHEAT BAYOU
1.5 MI N OF HWY 7, Webster, LA
Built 1983 Load: 36.3 t ADT: 145
Dorcheat Rd
FairOver: COW CREEK
10 MI N OF HWY 79-80, Webster, LA
Built 1983 Load: 36.3 t ADT: 294
US0065
FairOver: MISSISSIPPI RIVER
.01 MI EAST OF LA 131, Concordia, LA
Built 1989 Load: 36.4 t ADT: 20,933
Leger Rd.
FairOver: Canal
2.5 Mi. N. of La 3007, Acadia, LA
Built 1986 Load: 36.6 t ADT: 288
REEDS BRIDGE RD
FairOver: CALCASIEU RIVER
1.7 MILES WEST OF US 165, Allen, LA
Built 2011 Load: 36.6 t ADT: 132
OLD PUMP RD
FairOver: CALCASIEU RIVER RELIEF
0.6 MI. W. OF CHAPPEL RD, Allen, LA
Built 1985 Load: 36.6 t ADT: 581
OLD PUMP RD
FairOver: CALCASIEU RIVER RELIEF
0.8 MI. W. OF CHAPPEL RD, Allen, LA
Built 1985 Load: 36.6 t ADT: 581
COTTONGIN CASTOR
FairOver: MITCHELL CREEK
0.4 MI E OF HEBERT RD., Allen, LA
Built 1985 Load: 36.6 t ADT: 131
BURGESS RD
FairOver: FLAT CREEK
3.5 MI SW OF LA 26, Allen, LA
Built 1992 Load: 36.6 t ADT: 30
DAVE SMITH RD
FairOver: BOTTOM CREEK
1.2 MI SW OF LA 26, Allen, LA
Built 1993 Load: 36.6 t ADT: 291
WARD RD
FairOver: MITCHELL CREEK
1.6 MI EAST OF LA 372, Allen, LA
Built 1985 Load: 36.6 t ADT: 358
REEDS BRIDGE RD
FairOver: CALCASIEU RIVER RELIEF
1.66 MI. W. OF US 165, Allen, LA
Built 1983 Load: 36.6 t ADT: 132
TRAMEL RD
FairOver: FLAT CREEK
1.2 MI WEST OF LA 26, Allen, LA
Built 1990 Load: 36.6 t ADT: 80
CYPRESS CREEK RD
FairOver: BEAVER CREEK
0.30 MI. N. OF LA 10, Allen, LA
Built 1984 Load: 36.6 t ADT: 533
TOM JEFF RD
FairOver: TEN MILE CREEK
1.8 MI EAST OF LA 377, Allen, LA
Built 1984 Load: 36.6 t ADT: 180
Germany Rd
FairOver: BAYOU BLACK
2.8 MI. S. LITTLE PRAIRIE, Ascension, LA
Built 2000 Load: 36.6 t ADT: 750
LONGVILLE RD
FairOver: CREEK
1.2 MI WEST OF LA 113, Beauregard, LA
Built 1984 Load: 36.6 t ADT: 70
MORROW BRIDGE RD
FairOver: TRIGGER BRANCH
1.5 MI E. of LA 113, Beauregard, LA
Built 1984 Load: 36.6 t ADT: 120
Pleasant Rd
FairOver: FOUR MILE BAYOU TRIBUTAR
1.4 MI. N.E. OF LA 4, Bienville, LA
Built 1986 Load: 36.6 t ADT: 70
VALLEY VIEW DR
FairOver: AIRPORT DITCH
0.3 MI. EAST OF U.S., Caddo, LA
Built 1972 Load: 36.6 t ADT: 2,482
FABACHER RD
FairOver: CANAL
0.7 MI S of US 90, Calcasieu, LA
Built 1990 Load: 36.6 t ADT: 146
HICKORY BRANCH RD
FairOver: INDIAN BAYOU
1 MI W OF N PERKINS FERRY, Calcasieu, LA
Built 1991 Load: 36.6 t ADT: 585
Old Athens Rd
FairOver: FLAT LICK CREEK
4.54 M NORTH OF LA 518, Claiborne, LA
Built 1990 Load: 36.6 t ADT: 380
Funsten Rd
FairOver: CASTOR BAYOU
1.7 MI E OF LA 5, De Soto, LA
Built 1984 Load: 36.6 t ADT: 40
MALL OF LA BLVD
FairOver: WARD CREEK
.6 MI E OF BLUEBONNET, East Baton Rouge, LA
Built 2006 Load: 36.6 t ADT: 8,340
LANESFERRY RD
FairOver: LOGGY BAYOU
9MI W OF LAKE PROVI, East Carroll, LA
Built 1984 Load: 36.6 t ADT: 150
I0049
FairOver: DRAINAGE CANAL
2.7 Mi. North of LA 29, Evangeline, LA
Built 1986 Load: 36.6 t ADT: 9,875
I0049
FairOver: DRAINAGE CANAL
3.4 MI NORTH OF LA 29, Evangeline, LA
Built 1986 Load: 36.6 t ADT: 19,302
Brangus Rd
FairOver: BEACONS GULLY
0.40 Mi E of La 95, Evangeline, LA
Built 1987 Load: 36.6 t ADT: 154
Showing 4,851-4,900 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 |