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
US0065
FairOver: LAKE BRUIN BAYOU
1.1 MI SOUTH OF LA 605, Tensas, LA
Built 1948 Load: 32.4 t ADT: 1,873
US0065
FairOver: BAYOU
1.7 MI NORTH OF LA 888, Tensas, LA
Built 1953 Load: 32.4 t ADT: 2,109
St Charles St
FairOver: BAYOU BLACK
P5529353904461, Terrebonne, LA
Built 2003 Load: 32.4 t ADT: 14,665
US0167
FairOver: CREEK
1.7 MI NORTH OF ALT LA 2, Union, LA
Built 1924 Load: 32.4 t ADT: 422
US0167
FairOver: CREEK
5.3 MI NORTH OF LA 15, Union, LA
Built 1925 Load: 32.4 t ADT: 422
LA0033
FairOver: CREEK
2.5 MI NORTH OF LA 151, Union, LA
Built 1937 Load: 32.4 t ADT: 5,013
LA0033
FairOver: CREEK
3.5 MI NORTH OF LA 151, Union, LA
Built 1937 Load: 32.4 t ADT: 5,862
LA0002
FairOver: CREEK
3.0 MI WEST OF US 167, Union, LA
Built 1950 Load: 32.4 t ADT: 886
LA0002
FairOver: CREEK
6.7 MI EAST OF LA 550, Union, LA
Built 1975 Load: 32.4 t ADT: 2,579
LA0002
FairOver: CREEK
2.6 MI EAST OF LA 33, Union, LA
Built 1931 Load: 32.4 t ADT: 6,218
LA0002
FairOver: HORSE.PEN CREEK
5.6 MI EAST OF LA 33, Union, LA
Built 1931 Load: 32.4 t ADT: 6,236
LA0002
FairOver: CREEK
3.6 MI EAST OF LA 143, Union, LA
Built 1931 Load: 32.4 t ADT: 6,258
LA0015
FairOver: HUNNICUTT CREEK
1.3 MI NORTH OF LA 549, Union, LA
Built 1953 Load: 32.4 t ADT: 5,557
LA0015
FairOver: CREEK
4.4 MI NORTH OF LA 549, Union, LA
Built 1953 Load: 32.4 t ADT: 5,557
LA0015
FairOver: HORSE TROUGH CREEK
6.2 MI NORTH OF LA 549, Union, LA
Built 1955 Load: 32.4 t ADT: 5,557
LA0015
FairOver: CYPRESS CREEK
8.2 MI NORTH OF LA 549, Union, LA
Built 1955 Load: 32.4 t ADT: 5,557
LA0015
FairOver: CAMP CREEK
3.0 MI NORTH OF LA 550, Union, LA
Built 1955 Load: 32.4 t ADT: 2,423
LA0143
FairOver: HOLLMAN CREEK
4.8 MI NORTH OF LA 2, Union, LA
Built 1951 Load: 32.4 t ADT: 2,254
LA0015
FairOver: CREEK
1.0 MI NORTH OF LA 552, Union, LA
Built 1997 Load: 32.4 t ADT: 6,512
LA0013
FairOver: CREEK
0.5 MI N. OF LA 14, Vermilion, LA
Built 1952 Load: 32.4 t ADT: 2,466
LA0013
FairOver: AVERICO CANAL
1.15 MI N. OF LA 14, Vermilion, LA
Built 1952 Load: 32.4 t ADT: 2,466
LA0343
FairOver: CREEK
0.4 Miles North of LA 696, Vermilion, LA
Built 1957 Load: 32.4 t ADT: 2,830
LA3093
FairOver: CREEK
0.33 MI S. OF LA 14, Vermilion, LA
Built 1965 Load: 32.4 t ADT: 473
Elis Bridge Rd
FairOver: GUEYDAN CANAL
6.1 Mi W of LA 91, Vermilion, LA
Built 1999 Load: 32.4 t ADT: 100
Pioneer Rd.
FairOver: COULEE
0.7 Mi S of La 14, Vermilion, LA
Built 1985 Load: 32.4 t ADT: 106
Enis Rd
FairOver: CANAL
0.2 Mi N of La 697, Vermilion, LA
Built 1986 Load: 32.4 t ADT: 250
LA0392
FairOver: MILL CREEK
1.6 MI WEST OF LA 111, Vernon, LA
Built 1965 Load: 32.4 t ADT: 735
LA1211
FairOver: CREEK
4.73 MILES WEST OF US 171, Vernon, LA
Built 1958 Load: 32.4 t ADT: 2,663
HAWKS RD
FairOver: FLAT CREEK
1.2M WEST OF US 171, Vernon, LA
Built 1992 Load: 32.4 t ADT: 490
LA0021
FairOver: HILL CREEK
LA 21, Washington, LA
Built 1932 Load: 32.4 t ADT: 7,160
LA0021
FairOver: DRAIN
LA 21, Washington, LA
Built 1987 Load: 32.4 t ADT: 7,160
LA0021
FairOver: YELLOW BRANCH
4.2 M NE OF LA 1075, Washington, LA
Built 1950 Load: 32.4 t ADT: 7,160
LA0021
FairOver: DRAIN
2.4 M S OF LA 10, Washington, LA
Built 1966 Load: 32.4 t ADT: 7,160
LA0010
FairOver: DRAIN
0.3 M E OF LA 16, Washington, LA
Built 1932 Load: 32.4 t ADT: 7,817
LA0010
FairOver: POND BRANCH
3.4 M W OF LA 439, Washington, LA
Built 1932 Load: 32.4 t ADT: 10,686
LA0010
FairOver: DRAIN
2.9 M W OF LA 439, Washington, LA
Built 1932 Load: 32.4 t ADT: 10,686
LA0010
FairOver: DRAIN
0.7 M E OF LA 439, Washington, LA
Built 1932 Load: 32.4 t ADT: 4,253
LA0010
FairOver: DRAIN
0.8 M E OF LA 62, Washington, LA
Built 1932 Load: 32.4 t ADT: 5,765
LA0016
FairOver: CORKERN CREEK
1.1 M N OF LA 1072, Washington, LA
Built 1955 Load: 32.4 t ADT: 2,087
LA0038
FairOver: DRAIN
2.4 MI E OF LA25, Washington, LA
Built 2003 Load: 32.4 t ADT: 1,706
LA0060
FairOver: DRAIN
0.5M EAST JCT LA 16, Washington, LA
Built 1993 Load: 32.4 t ADT: 704
LA0060
FairOver: JOHNSON BRANCH
1.0M EAST OF JCT LA 16, Washington, LA
Built 1993 Load: 32.4 t ADT: 704
LA0060
FairOver: CREEK
9.45 MILES E OF LA 16, Washington, LA
Built 2000 Load: 32.4 t ADT: 797
Choctaw Rd
FairOver: TILLY'S BRANCH
3.5 M N JCT LA 1082 & 40, Washington, LA
Built 2001 Load: 32.4 t ADT: 720
Hollis Leslie Rd
FairOver: CANAL
1.2 M W OF JCT LA21&438, Washington, LA
Built 2002 Load: 32.4 t ADT: 1,480
US0371
FairOver: TANYARD CREEK
.2 MI SOUTH OF LA 531, Webster, LA
Built 1935 Load: 32.4 t ADT: 4,174
US0371
FairOver: SHERMAN CREEK
.8 MI SOUTH OF I-20, Webster, LA
Built 1925 Load: 32.4 t ADT: 9,002
US0371
FairOver: COOLEY BR RELIEF
.6 MI SOUTH OF I-20, Webster, LA
Built 1925 Load: 32.4 t ADT: 9,002
US0371
FairOver: COOLEY BRANCH
.5 MI SOUTH OF I-20, Webster, LA
Built 1925 Load: 32.4 t ADT: 9,002
US0079
FairOver: COOLEY BR RELIEF
1.7 MI EAST OF LA 531, Webster, LA
Built 1932 Load: 32.4 t ADT: 9,942
Showing 4,251-4,300 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 |