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
EDMISTON RD
FairOver: ROSS CREEK
0.8 MI SE of LA 3061, Jackson, LA
Built 2002 Load: 32.4 t ADT: 160
S JAMIE BLVD
FairOver: WAGGANMAN CANAL
1.3 MI S OF US 90B, Jefferson, LA
Built 1995 Load: 32.4 t ADT: 987
POST DR
FairOver: DRAINAGE CANAL
0.5 MI SW OF LAPALCO BLVD, Jefferson, LA
Built 2000 Load: 32.4 t ADT: 525
Veterans
FairOver: Canal 3
.1 M W of Transcontinenta, Jefferson, LA
Built 2002 Load: 32.4 t ADT: 3,500
Veterans Blvd
FairOver: Canal 3
0.2 M E of Transcontinent, Jefferson, LA
Built 2002 Load: 32.4 t ADT: 1,250
US0090-B
FairOver: ON RAMP LA-2
.01 MI EAST OF LA 23, Jefferson, LA
Built 1985 Load: 32.4 t ADT: 15,955
US0090-B
FairOver: WHISKEY BAYOU
1.0 MI EAST OF LA 18, Jefferson, LA
Built 1985 Load: 32.4 t ADT: 67,143
Gretna BLVD
FairOver: HEEBE CANAL
0.5 MI. E. OF MANHATTAN, Jefferson, LA
Built 1995 Load: 32.4 t
W. Metairie Ave
FairOver: CANAL NO. 5
0.0MI.FROM W.METAIRE, Jefferson, LA
Built 1960 Load: 32.4 t ADT: 1,000
ROOSEVELT BLVD
FairOver: CANAL NUMBER 5
0.7MI.E.OF WILLIAMS, Jefferson, LA
Built 1960 Load: 32.4 t ADT: 1,000
VETERAN' S X-OVER
FairOver: CANAL #3
0.03 MI N OF VETERANS MEM, Jefferson, LA
Built 1982 Load: 32.4 t ADT: 10,000
VETERANS BLVD
FairOver: SUBURBAN CANAL
1 MILE EAST OF CLEARVIEW, Jefferson, LA
Built 2004 Load: 32.4 t
W Esplanade Ave S
FairOver: CANAL NO 2
0.1 MI W OF SEVERN AVENUE, Jefferson, LA
Built 1960 Load: 32.4 t
W Esplanade Ave S
FairOver: CANAL NUMBER 2
1.0 M E OF POWER BLVD, Jefferson, LA
Built 1989 Load: 32.4 t
US0090
FairOver: DRAIN
2.7 MI. E. OF LA 1131, Jefferson Davis, LA
Built 1934 Load: 32.4 t ADT: 4,262
US0090
FairOver: CANAL
3.7 MI EAST OF LA 395, Jefferson Davis, LA
Built 1974 Load: 32.4 t ADT: 4,964
US0090
FairOver: CANAL
1.2 MI EAST OF LA 102, Jefferson Davis, LA
Built 1954 Load: 32.4 t ADT: 3,789
US0190
FairOver: BAYOU
3.61 MI EAST OF LA 99, Jefferson Davis, LA
Built 1934 Load: 32.4 t ADT: 5,849
US0165
FairOver: GUM BAYOU
4.7 MI NORTH OF LA 102, Jefferson Davis, LA
Built 1932 Load: 32.4 t ADT: 11,886
LA0026
FairOver: DRAIN
0.6 MI N of LA102, Jefferson Davis, LA
Built 1932 Load: 32.4 t ADT: 5,622
LA0014
FairOver: DRAIN
0.03 MI EAST OF LA 99, Jefferson Davis, LA
Built 1953 Load: 32.4 t ADT: 1,108
LA0014
FairOver: DRAIN
2.05 MI EAST OF LA 99, Jefferson Davis, LA
Built 1953 Load: 32.4 t ADT: 1,108
LA0383
FairOver: DRAIN
4.43 MI NORTH OF LA 101, Jefferson Davis, LA
Built 1965 Load: 32.4 t ADT: 5,563
LA0101
FairOver: DRAIN
.73 MI EAST OF LA 383, Jefferson Davis, LA
Built 1962 Load: 32.4 t ADT: 3,166
LA0101
FairOver: DRAIN
1.82 MI EAST OF LA 383, Jefferson Davis, LA
Built 1962 Load: 32.4 t ADT: 3,166
LA0099
FairOver: DRAIN
1.17 MI NORTH OF LA 380, Jefferson Davis, LA
Built 1957 Load: 32.4 t ADT: 456
LA0099
FairOver: DRAIN
2.8 MI N OF LA 380, Jefferson Davis, LA
Built 1955 Load: 32.4 t ADT: 456
LA0099
FairOver: DRAIN
1.8 M S of LA 1126, Jefferson Davis, LA
Built 1955 Load: 32.4 t ADT: 456
LA0099
FairOver: DRAIN
6.0 MI NORTH OF LA 380, Jefferson Davis, LA
Built 1955 Load: 32.4 t ADT: 456
LA0099
FairOver: DRAIN
2.1 M N OF I-10, Jefferson Davis, LA
Built 1931 Load: 32.4 t ADT: 1,405
LA3086
FairOver: DRAIN
1.7 MI N of LA 102, Jefferson Davis, LA
Built 1990 Load: 32.4 t ADT: 369
LA0101
FairOver: W. LACASSINE BAYOU
4.5 MI. N. OF LA 14., Jefferson Davis, LA
Built 1983 Load: 32.4 t ADT: 3,166
LA0101
FairOver: GULLY
3.6 MI S of US 90, Jefferson Davis, LA
Built 1983 Load: 32.4 t ADT: 3,166
I0010
FairOver: DRAIN
2.2 MI E OF LA 383, Jefferson Davis, LA
Built 1964 Load: 32.4 t ADT: 66,534
I0010
FairOver: DRAIN
4.2 MI E of LA 101, Jefferson Davis, LA
Built 1964 Load: 32.4 t ADT: 838
LA0102
FairOver: BAYOU
7.2 MI N of US 90, Jefferson Davis, LA
Built 1991 Load: 32.4 t ADT: 3,728
LA1126
FairOver: DRAIN
1.4 MI E of LA 26, Jefferson Davis, LA
Built 1973 Load: 32.4 t ADT: 507
LA0102
FairOver: CANAL
.84 MI EAST OF LA 26, Jefferson Davis, LA
Built 1964 Load: 32.4 t ADT: 3,728
LA0395
FairOver: WEST BAYOU MARAIS
3.3 MI NORTH OF LA 102, Jefferson Davis, LA
Built 1958 Load: 32.4 t ADT: 922
LA0395
FairOver: WEST GRAND MARAIS BAYOU
4.29 MI NORTH OF LA 102, Jefferson Davis, LA
Built 1958 Load: 32.4 t ADT: 922
LA0395
FairOver: DRAIN
7.26 MI NORTH OF LA 102, Jefferson Davis, LA
Built 1958 Load: 32.4 t ADT: 922
DAVID ROAD
FairOver: GULLY
1.4 M E of LA 382, Jefferson Davis, LA
Built 1987 Load: 32.4 t ADT: 30
COMPTON ROAD
FairOver: DRAIN
2.6 M S of LA 102, Jefferson Davis, LA
Built 1984 Load: 32.4 t ADT: 30
ROSTROM ROAD
FairOver: DRAIN
2.4 MI S of ESTES RD., Jefferson Davis, LA
Built 1999 Load: 32.4 t ADT: 150
LA3184
FairOver: Paved Ditch
1.64 MI N of US 167, Lafayette, LA
Built 1981 Load: 32.4 t ADT: 19,557
LA3025
FairOver: Paved Ditch
1.4 MI NW of US 167, Lafayette, LA
Built 1981 Load: 32.4 t ADT: 25,500
US0090
FairOver: Bayou Queue De Tortue
0.4 MI EAST OF LA 724, Lafayette, LA
Built 1934 Load: 32.4 t ADT: 7,042
LA0092
FairOver: Coulee
.08 Mi West of US90, Lafayette, LA
Built 1963 Load: 32.4 t ADT: 8,744
I0010
FairOver: DRAIN
1.8 MI EAST OF LA 93, Lafayette, LA
Built 1968 Load: 32.4 t ADT: 56,748
I0010
FairOver: COULEE MINE
2.2 MI EAST OF LA 93, Lafayette, LA
Built 1968 Load: 32.4 t ADT: 56,748
Showing 4,001-4,050 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 |