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
COUSINS BLVD
GoodOver: DRAIN CANAL
0.4 MILES SOUTH OF LAPALC, Jefferson, LA
Built 2000 Load: 32.4 t
RIVET BLVD
GoodOver: DRAIN CANAL
1.0 MI S OF LA 18, Jefferson, LA
Built 2002 Load: 32.4 t
LA0023
GoodOver: WEYRAUCH CANAL
1.0 MI. S. OF US 90B, Jefferson, LA
Built 1992 Load: 32.4 t ADT: 28,481
LA0023
GoodOver: OAKWOOD CANAL
2.0 MI SOUTH OF US 90B, Jefferson, LA
Built 1992 Load: 32.4 t ADT: 25,594
AIRLINE PARK BLVD
GoodOver: CANAL NUMBER 5
.5 MILES NORTH OF US61, Jefferson, LA
Built 2009 Load: 32.4 t
Clearview PKWY
GoodOver: CANAL NO 2
0.7 MI. E. OF TRANSCONTIN, Jefferson, LA
Built 2012 Load: 32.4 t ADT: 20,464
CLEARVIEW PKWY
GoodOver: CANAL #3
0.01 MI N OF VETERANS B, Jefferson, LA
Built 1983 Load: 32.4 t
CALIFORNIA AVE
GoodOver: CANAL NO. 2
0.3 MI. W. OF WILLIAMS BL, Jefferson, LA
Built 2011 Load: 32.4 t
LA0045
GoodOver: 16 TH STREET CANAL
0.8 MI SOUTH OF US 90B, Jefferson, LA
Built 1973 Load: 32.4 t ADT: 28,780
US0090-B
GoodOver: WESTBANK EXPY. EB FR RD
.2 MI WEST OF LA 23, Jefferson, LA
Built 1982 Load: 32.4 t ADT: 12,402
US0090-B
GoodOver: KEYHOLE CANAL
2.7 MI EAST OF LA 45, Jefferson, LA
Built 1992 Load: 32.4 t ADT: 67,143
US0090-B
GoodOver: DRAIN
.6 MI EAST OF LA 18, Jefferson, LA
Built 1960 Load: 32.4 t ADT: 67,143
US0090-B
GoodOver: DRAIN
1.4 MI EAST OF LA 18, Jefferson, LA
Built 1957 Load: 32.4 t ADT: 67,143
LA0049
GoodOver: DRAIN
0.009 MI N OF VINTAGE DR, Jefferson, LA
Built 1970 Load: 32.4 t ADT: 36,951
LA0049
GoodOver: DRAIN
1.0 MI NORTH OFI-10, Jefferson, LA
Built 1970 Load: 32.4 t ADT: 20,352
LA0049
GoodOver: DRAIN
1.35 MI SOUTH OF I-10, Jefferson, LA
Built 1955 Load: 32.4 t ADT: 20,352
LA3134
GoodOver: CANAL
1.2 MI N OF LA 45, Jefferson, LA
Built 1999 Load: 32.4 t ADT: 7,837
LA3139
GoodOver: ST. PETER'S DITCH
.8 MI EAST OF LA 3154, Jefferson, LA
Built 1986 Load: 32.4 t ADT: 55,872
I0010
GoodOver: CANAL NO. 17
.9 MI EAST OF I-310, Jefferson, LA
Built 1971 Load: 32.4 t ADT: 126,119
I0010
GoodOver: CANAL NO. 19
2.4 MI EAST OF I-310, Jefferson, LA
Built 1971 Load: 32.4 t ADT: 126,119
AMES BLVD
GoodOver: EIGHTY ARPENT CANAL
0.6 MI. SOUTH OF LAPALCO, Jefferson, LA
Built 1997 Load: 32.4 t ADT: 18,920
COUSINS BLVD
GoodOver: COUSINS CANAL
0.6 MI E OF LA 45, Jefferson, LA
Built 1996 Load: 32.4 t
LAPALCO BLVD
GoodOver: OAKWOOD CANAL
0.1 MI W. OF LA 23, Jefferson, LA
Built 1977 Load: 32.4 t
LAPALCO BLVD
GoodOver: GRAND CROSS CANAL
0.2 MI. E. OF VICTORY DR., Jefferson, LA
Built 1984 Load: 32.4 t ADT: 2,000
LAPALCO BLVD
GoodOver: KEYHOLE CANAL
0.5 MI. S. OF W.B. EXPWY., Jefferson, LA
Built 1984 Load: 32.4 t ADT: 1,000
Carol Sue Ave
GoodOver: CANAL WRIGHT AVE.
0.4M WEST OF HERITAG, Jefferson, LA
Built 1960 Load: 32.4 t
LAPALCO BLVD
GoodOver: LABRANCH CANAL
O.6 MI. E. OF US 90, Jefferson, LA
Built 1980 Load: 32.4 t ADT: 1,000
PALM ST
GoodOver: METAIRIE RELIEF CANAL
0.01M NORTH OF ORPHEUM, Jefferson, LA
Built 1993 Load: 32.4 t ADT: 2,000
W. Metairie Ave
GoodOver: CANAL NO 5
0.05 MI E OF CLEARY AVE, Jefferson, LA
Built 1981 Load: 32.4 t ADT: 15,000
CLEARY AVE
GoodOver: CANAL NUMBER 5
0.4MI.N.OF AIRLINE H, Jefferson, LA
Built 1960 Load: 32.4 t ADT: 6,675
W. Metairie Ave
GoodOver: CANAL NO 5
0.1 MI WEST OF CLEARY AVE, Jefferson, LA
Built 1981 Load: 32.4 t ADT: 15,000
CLEARVIEW PKWY
GoodOver: CANAL NO. 5
0.4 MI. N. OF AIRLINE HWY, Jefferson, LA
Built 1982 Load: 32.4 t ADT: 55,210
TRANSCONTINENTAL
GoodOver: CANAL NUMBER 5
0.4MI.N.OF AIRLINE H, Jefferson, LA
Built 1960 Load: 32.4 t ADT: 18,575
HARING RD
GoodOver: CANAL NO 5
0.5MI.N.OF.US 61, Jefferson, LA
Built 1970 Load: 32.4 t ADT: 2,000
Elise Ave
GoodOver: CANAL NO. 5
0.0MI.WEST METAIRE A, Jefferson, LA
Built 1960 Load: 32.4 t ADT: 2,000
David Dr
GoodOver: CANAL NUMBER 5
0.3MI.N.OF AIRLINE H, Jefferson, LA
Built 1960 Load: 32.4 t ADT: 20,625
TRUDEAU DR
GoodOver: CANAL NO.5
0.6MI.NORTH OF US 61, Jefferson, LA
Built 1970 Load: 32.4 t ADT: 2,000
LYNNETTE DR
GoodOver: CANAL NO.5
0.01MI.N.OF W.METAIR, Jefferson, LA
Built 1970 Load: 32.4 t ADT: 1,000
N. Bengal Rd
GoodOver: CANAL NO 5
0.7MI.NORTH OF US.61, Jefferson, LA
Built 1970 Load: 32.4 t ADT: 1,000
CLAY ST
GoodOver: CANAL NUMBER 5
0.0 MI. W.METAIRIE, Jefferson, LA
Built 1960 Load: 32.4 t ADT: 2,000
CAUSEWAY@NAPOLEON
GoodOver: WEST NAP.CANAL NUMBER 4
0.5 MI. NORTH OF US. 61, Jefferson, LA
Built 1980 Load: 32.4 t ADT: 30,300
Severn Ave
GoodOver: CANAL NO 4
1.5 MI W OF CAUSEWAY, Jefferson, LA
Built 1979 Load: 32.4 t ADT: 20,000
Clearview PKWY
GoodOver: CANAL NO. 4
0.6 MI S. OF VETERANS HWY, Jefferson, LA
Built 1995 Load: 32.4 t ADT: 55,210
W. Napolean Ave
GoodOver: CANAL NO. 4
0.1 E OF TRANSCONTINENTAL, Jefferson, LA
Built 1995 Load: 32.4 t ADT: 20,800
ROOSEVELT BLVD
GoodOver: CANAL NUMBER 4
0.6 MI. S.OF VETERAN, Jefferson, LA
Built 1960 Load: 32.4 t ADT: 10,000
VETERAN'S U-TURN
GoodOver: CANAL NO 3
.5 MI. N. OF I.10, Jefferson, LA
Built 1975 Load: 32.4 t ADT: 12,000
VETERAN'S X-OVER
GoodOver: CANAL #3
0.2 MI E OF CAUSEWAY BLVD, Jefferson, LA
Built 1975 Load: 32.4 t ADT: 15,000
VETERAN U-TURN
GoodOver: CANAL NO 3
0.0 MI. VETERANS BLV, Jefferson, LA
Built 1973 Load: 32.4 t ADT: 30,300
EDENBORN AVE
GoodOver: CANAL #3
0.01 MI N OF VETERANS B, Jefferson, LA
Built 1970 Load: 32.4 t ADT: 10,000
DIVISION STREET
GoodOver: CANAL #3
0.08 MI S OF MARION ST, Jefferson, LA
Built 1970 Load: 32.4 t ADT: 10,000
Showing 8,151-8,200 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 |