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
LOCUST HILL RD
Structurally DeficientOver: TRIB TO BOGGY BAYOU
0.3 Mi. W. of US 79, Caddo, LA
Built 1984 Load: 8.4 t ADT: 78
Buck Horn Dr
Structurally DeficientOver: DRAINAGE BAYOU
1.3 MILES EAST OF FRED, East Baton Rouge, LA
Built 1985 Load: 8.4 t ADT: 314
FDR 127
Structurally DeficientOver: HURRICANE CREEK
NO DATA ENTERED, Grant, LA
Built 1975 Load: 8.4 t ADT: 30
Labit Rd
Structurally DeficientOver: COULEE
0.3 MI North of LA 88, Iberia, LA
Built 1965 Load: 8.7 t ADT: 829
BOLLES RD.
Structurally DeficientOver: GULLY
1.5 MI W of LA395, Jefferson Davis, LA
Built 1975 Load: 8.7 t ADT: 25
Larock Rd
Structurally DeficientOver: NATALBANY CREEK
0.9 Mi W of US 51, Tangipahoa, LA
Built 1950 Load: 8.7 t ADT: 14
CHARLIE KUNTZ RD
Structurally DeficientOver: KINDER DITCH
0.6 MI N OF LA 3086, Allen, LA
Built 1952 Load: 9.1 t ADT: 150
PARK RD
Structurally DeficientOver: CREEK
0.1 MI. S OF LA 383, Allen, LA
Built 1965 Load: 9.1 t ADT: 480
LOFTIN RD
Structurally DeficientOver: PALMETTO CREEK
0.2 MI. N OF SAND BED RD, Beauregard, LA
Built 1990 Load: 9.1 t ADT: 125
Selma Loop Rd
Structurally DeficientOver: CREEK
0.41 M. S. OF PARISH ROAD, Grant, LA
Built 1970 Load: 9.1 t ADT: 130
Grand Staff Rd
Structurally DeficientOver: CREEK
GRAND STAFF ROAD, Grant, LA
Built 1970 Load: 9.1 t ADT: 40
JOSEPH STREET
Structurally DeficientOver: CREEK
0.6 MI N of US 90, Jefferson Davis, LA
Built 1968 Load: 9.1 t ADT: 200
Garber Rd.
Structurally DeficientOver: COULEE
1.17 MI NE of US 90, Lafayette, LA
Built 1977 Load: 9.1 t ADT: 1,660
LA0485
Structurally DeficientOver: LITTLE RIVER RELIEF
3.5 MI. NORTH OF LA 6, Natchitoches, LA
Built 1956 Load: 9.1 t ADT: 508
Beach Rd
Structurally DeficientOver: CREEK
.9 MI SW OF JCT 445, Tangipahoa, LA
Built 1960 Load: 9.1 t ADT: 14
14th St
Structurally DeficientOver: BOGUE CHITTO CR.
FRANKLINTON LA, Washington, LA
Built 1960 Load: 9.1 t ADT: 420
LA0160
Structurally DeficientOver: DORCHEAT B RELIEF
2.9 MI EAST OF LA 3014, Webster, LA
Built 1966 Load: 9.1 t ADT: 537
LA1232
Structurally DeficientOver: KYIAIES CREEK
5.84 MI EAST OF LA 501, Winn, LA
Built 1960 Load: 9.1 t ADT: 178
LA0520
Structurally DeficientOver: BEAVER BRANCH
3.44 MI EAST OF US 79, Claiborne, LA
Built 1967 Load: 9.4 t ADT: 532
Lanier Dr
Structurally DeficientOver: HURRICANE CREEK
.8 MI.NE-LA 37-LA 61, East Baton Rouge, LA
Built 1965 Load: 9.4 t ADT: 5,397
Applewhite St
Structurally DeficientOver: Chatlin Lake Canal
APPLEWHITE STREET, Rapides, LA
Built 1983 Load: 9.4 t ADT: 240
LA0120
Structurally DeficientOver: CREEK
0.86 MI EAST OF US 171, Sabine, LA
Built 1960 Load: 9.4 t ADT: 235
Marydale Rd
Structurally DeficientOver: ALEXANDER CREEK
.5 MI. E of US61, West Feliciana, LA
Built 1975 Load: 9.4 t ADT: 60
LA1232
Structurally DeficientOver: CREEK
.22 MI EAST OF LA 501, Winn, LA
Built 1960 Load: 9.4 t ADT: 178
EARL RD.
Structurally DeficientOver: CREOLE CANAL
0.4 MI N of LA 27, Cameron, LA
Built 1967 Load: 9.7 t ADT: 173
LA0520
Structurally DeficientOver: CREEK
1.86 MI NORTH OF I-20, Claiborne, LA
Built 1967 Load: 9.7 t ADT: 943
Beeson St
Structurally DeficientOver: FLAGON BAYOU TRIB.
0.14 MI. WEST OF US 165, Rapides, LA
Built 1970 Load: 9.7 t ADT: 200
LA0120
Structurally DeficientOver: BAYOU SCIE RELIEF 1
3.43 MI EAST OF US 171, Sabine, LA
Built 1960 Load: 9.7 t ADT: 235
LA0056
Structurally DeficientOver: ROBINSON CANAL
1.7 MI NORTH OF LA 57, Terrebonne, LA
Built 1966 Load: 9.7 t ADT: 3,872
LA0002-A
Structurally DeficientOver: THORNY BRANCH
.6 MI EAST OF LA 159, Webster, LA
Built 1968 Load: 9.7 t ADT: 655
Adams Crossing
Structurally DeficientOver: BAYOU ROUGE
0.01 MI. WEST OF LA 361, Avoyelles, LA
Built 1970 Load: 10.0 t ADT: 40
Caplis Sligo Rd
Structurally DeficientOver: Red Chute Bayou
1.6 MI SOUTH OF LA 612, Bossier, LA
Built 1995 Load: 10.0 t ADT: 710
Collinsbrg Creek
Structurally DeficientOver: Collinsburg Creek
1.5 MI W OF HWY 3, Bossier, LA
Built 1980 Load: 10.0 t ADT: 110
Mchugh Rd
Structurally DeficientOver: BAKER CANAL
2.2 MI SE JCT LA 64, East Baton Rouge, LA
Built 1960 Load: 10.0 t ADT: 973
E Flanacher Rd
Structurally DeficientOver: DRAINAGE CANAL
0.7 MI E OF US 61, East Baton Rouge, LA
Built 1968 Load: 10.0 t ADT: 933
Carruth Rd
Structurally DeficientOver: KELLERS BAYOU
1.7 Mi NE of LA 19, East Feliciana, LA
Built 1975 Load: 10.0 t ADT: 110
HAMILTON ST
Structurally DeficientOver: FORTY ARPENT CANAL
1.3 MI N. OF LA 308, Lafourche, LA
Built 1960 Load: 10.0 t ADT: 204
CUTOFF RD
Structurally DeficientOver: BAYOU COULEE
.4 MI. W. INT. 045, Morehouse, LA
Built 1981 Load: 10.0 t ADT: 40
MCFEE ST
Structurally DeficientOver: STALKINGHEAD CRK MCFEE S
.4 MI. S. INT. 010, Morehouse, LA
Built 1981 Load: 10.0 t ADT: 350
AZALEA DRIVE
Structurally DeficientOver: BAYOU BONNE IDEE
0.7 MI SOUTHWEST INT 137, Morehouse, LA
Built 1986 Load: 10.0 t ADT: 40
Wayne Headrick Rd
Structurally DeficientOver: LITTLE INDIAN CREEK
0.3 MI. SOUTH OF LA 28, Rapides, LA
Built 2004 Load: 10.0 t ADT: 40
Hay's Cr. Rd
Structurally DeficientOver: HAYS CREEK
2.1 MI. N. OF HWY. 3, Washington, LA
Built 1970 Load: 10.0 t ADT: 528
Plettenberg road
Structurally DeficientOver: POLLY CREEK
3.5 MI. SW of LA968, West Feliciana, LA
Built 1975 Load: 10.0 t ADT: 110
PAUL BROWN RD
Structurally DeficientOver: WEST FORK CANEY CREEK
1.0 MI S OF LA 10, Allen, LA
Built 1950 Load: 10.2 t ADT: 10
LA0450
Structurally DeficientOver: DRAIN
2.3 M N OF LA 10, Washington, LA
Built 1958 Load: 10.2 t ADT: 1,162
Burson Rd
Structurally DeficientOver: PARMERS CREEK
2.5 MI NE OF HWY 7, Webster, LA
Built 1976 Load: 10.3 t ADT: 363
LA0146
Structurally DeficientOver: ALLEN CREEK
1.48 MI EAST OF LA 9, Claiborne, LA
Built 1968 Load: 10.4 t ADT: 1,360
LA0783
Structurally DeficientOver: BAYOU CHICOT
5.23 MI NORTH OF LA 783, Red River, LA
Built 1969 Load: 10.4 t ADT: 590
Scanlan Rd
Structurally DeficientOver: GUEYDAN CANAL
2 Mile S of La 332, Vermilion, LA
Built 1979 Load: 10.4 t ADT: 20
Heck Young Rd
Structurally DeficientOver: CYPRESS BAYOU
1.8 M E of LA 964, East Baton Rouge, LA
Built 1965 Load: 10.7 t ADT: 2,080
Showing 12,301-12,350 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 |