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
LINVILLE FIRE TWR
Structurally DeficientOver: BAYOU DE LOUTRE
2.8 MI. NE INT. 470, Union, LA
Built 1975 ADT: 290
EUBANKS RD
Structurally DeficientOver: PRAIRIE CREEK
0.8 Mi W. of LA 111, Vernon, LA
Built 1970 ADT: 50
Jones Connell Rd
Structurally DeficientOver: CREEK
3.8M NW OF LA 10 JCT 421, West Feliciana, LA
Built 1991 ADT: 30
Plettenberg Rd.
Structurally DeficientOver: POLLY CREEK
4.8 MI SW JCT LA 66 LA968, West Feliciana, LA
Built 1986 ADT: 110
Highland Rd
Structurally DeficientOver: MADDEN CREEK
2.7 MI W of LA 66, West Feliciana, LA
Built 1970 ADT: 210
Sligo Rd
Structurally DeficientOver: WALTER CREEK
3.9 M E OF LA 66, West Feliciana, LA
Built 1967 ADT: 100
Sligo Rd
Structurally DeficientOver: BIG BAYOU SARA
4.2 MI.SW.US61,STATE, West Feliciana, LA
Built 1960 ADT: 80
Sligo Rd
Structurally DeficientOver: GALES CREEK
3.2 MI.SW.US61,STATE, West Feliciana, LA
Built 1975 ADT: 130
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
Anderson Rd
Structurally DeficientOver: HYDE BR.
2 MI S OF 1054 & 440, Tangipahoa, LA
Built 1960 Load: 1.2 t ADT: 25
GEORGE WAGONNER RD
Structurally DeficientOver: MOODY CREEK
5 MI W LUNA, Ouachita, LA
Built 1960 Load: 2.7 t ADT: 15
LA0300
Structurally DeficientOver: BAYOU LALOUTRE
8.70 MI FROM PARISH LINE, St. Bernard, LA
Built 1967 Load: 3.2 t ADT: 891
ARKADELPHIA RD
Structurally DeficientOver: SIX MILE CREEK RELIEF
3.97 MI. N. OF LA 377, Allen, LA
Built 1977 Load: 3.4 t ADT: 260
LA0063
Structurally DeficientOver: MCQUINNEY BAYOU
1.7 miles N of La 959, East Feliciana, LA
Built 1957 Load: 3.4 t ADT: 1,584
Cutt's Rd
Structurally DeficientOver: HEMPHILL CREEK
1.25 MI. NW OF LA 121, Rapides, LA
Built 1983 Load: 3.4 t ADT: 275
Point ala Hache Fe
Structurally DeficientOver: MISS. RIVER FERRY RAMP
0.15 EAST OF LA 23, Plaquemines, LA
Built 1960 Load: 4.2 t ADT: 50
Elston Rd
Structurally DeficientOver: Red Chute Bayou
0.5 MI N OF LA 154, Bossier, LA
Built 1989 Load: 4.5 t ADT: 20
LA0580
Structurally DeficientOver: TENSAS BAYOU
2.0 MI EAST OF LA 877, East Carroll, LA
Built 1958 Load: 4.5 t ADT: 268
Hepzibah Rd
Structurally DeficientOver: COLLINS CREEK
2.1 M NE of LA 10, East Feliciana, LA
Built 1978 Load: 4.5 t ADT: 8
LA0085
Structurally DeficientOver: PATOUT CANAL
2.0 MI EAST OF LA 83, Iberia, LA
Built 1945 Load: 4.5 t ADT: 3,125
LA0700
Structurally DeficientOver: BAYOU GRAND MARAIS
1.33 MI N. OF LA 699, Vermilion, LA
Built 1952 Load: 4.5 t ADT: 1,900
Horseshoe Bridge
Structurally DeficientOver: BOAT CHANNEL/BISTINEAU
0.4M SOUTH OF LA 164, Webster, LA
Built 1991 Load: 4.5 t ADT: 23
LA0160
Structurally DeficientOver: DORCHEAT BAYOU
2.5 MI EAST OF LA 3014, Webster, LA
Built 1966 Load: 5.2 t ADT: 421
CUSTER ST
Structurally DeficientOver: CANAL
0.01 MI E. OF INT. 5, Calcasieu, LA
Built 1995 Load: 5.4 t
LA1024
Structurally DeficientOver: CREEK
2.5 M E OF LA 447, Livingston, LA
Built 1942 Load: 5.4 t ADT: 1,020
MANDALAY BRIDGE
Structurally DeficientOver: BLACK BAYOU
0.005 MI N OF LA 182, Terrebonne, LA
Built 1969 Load: 5.4 t ADT: 2,388
Beaver Creek Rd
Structurally DeficientOver: BEAVER CREEK
1.4 M N of La 432, East Feliciana, LA
Built 1996 Load: 5.7 t ADT: 92
Martin Springs Rd
Structurally DeficientOver: CARRS CREEK BAY
0.3 M. W. OF H. STRANGE R, Rapides, LA
Built 1998 Load: 5.8 t ADT: 200
Stoney Point Burch
Structurally DeficientOver: DRAINAGE BAYOU
1.3 M W OF LA 37, East Baton Rouge, LA
Built 1965 Load: 6.2 t ADT: 332
LA0146
Structurally DeficientOver: ISAAC CREEK
1.1 MI WEST OF WEST INT L, Claiborne, LA
Built 1967 Load: 6.4 t ADT: 1,360
LA0505
Structurally DeficientOver: CANEY CREEK
1.8 MI WEST OF LA 126, Winn, LA
Built 1954 Load: 6.4 t ADT: 873
S. Holingsworth Dr
Structurally DeficientOver: VALCOURT COULEE
0.1 MI W. of La 82, Vermilion, LA
Built 1970 Load: 6.5 t ADT: 500
LA0507
Structurally DeficientOver: CREEK
2.0M SW OF LA 797, Bienville, LA
Built 1993 Load: 6.8 t ADT: 845
Strain Rd
Structurally DeficientOver: DRAINAGE CANAL
0.2 MILES E ONEAL, East Baton Rouge, LA
Built 1974 Load: 6.8 t ADT: 1,535
Easley Rd
Structurally DeficientOver: SWEETWATER CR.
3.7 MI NW OF JCT 40, Tangipahoa, LA
Built 1975 Load: 6.8 t ADT: 554
Raborn Rd
Structurally DeficientOver: ASHLEYS BR.
1 MI S OF LA 38, Tangipahoa, LA
Built 1960 Load: 6.8 t ADT: 4
LA0091
Structurally DeficientOver: SPENCER CANAL
1.0 MI S. OF LA 3143, Vermilion, LA
Built 1970 Load: 6.8 t ADT: 388
Marathon Rd
Structurally DeficientOver: GRAY CREEK
2 MI E OF HWY 7, Webster, LA
Built 1977 Load: 6.8 t ADT: 609
LA1232
Structurally DeficientOver: LITTLE CREEK
3.12 MI EAST OF LA 501, Winn, LA
Built 1960 Load: 6.8 t ADT: 178
Fish Creek Camp Rd
Structurally DeficientOver: Fish Creek
0.28 M. W of Fish Creek R, Grant, LA
Built 1988 Load: 7.1 t ADT: 5
DONALDSON AVE
Structurally DeficientOver: HORSE BAYOU/DONALDSON ST
.1 MI. E. INT. 014, Morehouse, LA
Built 1978 Load: 7.3 t ADT: 100
Bobby Morgan Rd
Structurally DeficientOver: TWELVE MILE CREEK
1.3 MI.W.OF D.E., St. Helena, LA
Built 1958 Load: 7.3 t ADT: 60
Mill Cr. Rd
Structurally DeficientOver: MILL CREEK
3.9 MI E OF JCT 433, Washington, LA
Built 1960 Load: 7.3 t ADT: 160
Spring Valley Rd
Structurally DeficientOver: CREEK
0.2 MI WEST OF LA 1075, Washington, LA
Built 1970 Load: 7.3 t ADT: 838
Grand Rd
Structurally DeficientOver: DRAINAGE CANAL
0.5 Mi. E. of LA 69, Iberville, LA
Built 1975 Load: 7.5 t ADT: 90
Leggit Crossing
Structurally DeficientOver: BAYOU MACON
1.9 Mi. E. of LA 588, East Carroll, LA
Built 1960 Load: 7.8 t ADT: 200
Moses Ln
Structurally DeficientOver: CHOCTAW BAYOU
1.3 MI. EAST OF LA 1, Avoyelles, LA
Built 1950 Load: 8.0 t ADT: 90
LAKESIDE LOOP
Structurally DeficientOver: YOCUM CR
LAKESIDE LOOP, Sabine, LA
Built 1967 Load: 8.1 t ADT: 110
Showing 12,251-12,300 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 |