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
James St.
PoorOver: SALINE BAYOU TRIBUTARY
0.4 M NORTH OF LA 147, Bienville, LA
Built 1991 Load: 16.2 t ADT: 100
Village Rd
PoorOver: TRIB. TO MACKS BAYOU
0.2 MI N OF HWY 72, Bossier, LA
Built 1977 Load: 16.2 t ADT: 100
LA0020
PoorOver: DRAINAGE CANAL
5.0 MI NORTH OF LA 308, Lafourche, LA
Built 1968 Load: 16.2 t ADT: 20,091
LA0308
PoorOver: DRAINAGE CANAL
.5 MI SOUTH OF LA 655, Lafourche, LA
Built 1965 Load: 16.2 t ADT: 11,623
LA1037
PoorOver: LIZARD CREEK
0.4 M S OF LA 42, Livingston, LA
Built 1964 Load: 16.2 t ADT: 1,668
Strothers Crossing
PoorOver: CALCASIEU RIVER
1.11 MILES EAST OF LA 112, Rapides, LA
Built 1981 Load: 16.2 t ADT: 90
LA0037
PoorOver: GLASS BRANCH
1.5 miles south of LA 10, St. Helena, LA
Built 1960 Load: 16.2 t ADT: 1,781
LA0178
PoorOver: BAYOU BOURBEAUX
0.40 MI EAST OF LA 182, St. Landry, LA
Built 1976 Load: 16.2 t ADT: 1,619
US0051
PoorOver: YELLOW WATER RIVER
0.3 MI N OF LA 3234, Tangipahoa, LA
Built 1953 Load: 16.2 t ADT: 16,234
LA3008
PoorOver: BLACK BAYOU RELIEF
1.2 MI SOUTH OF LA 160, Webster, LA
Built 1974 Load: 16.2 t ADT: 145
WEST ST
PoorOver: BUXTON CREEK
0.1 MI N of PATRICIA H RD, Calcasieu, LA
Built 1955 Load: 16.3 t ADT: 50
LA0148
PoorOver: CREEK
6.19 MI WEST OF LA 146, Jackson, LA
Built 1955 Load: 16.3 t ADT: 532
Homestead Ave
PoorOver: CANAL NO.2
0.4MI.N.OF.VETERANS, Jefferson, LA
Built 1970 Load: 16.3 t
PATRICIA ST
PoorOver: CHALMETTE VISTA CANAL
O.1MI.W.OF VILLAGE S, St. Bernard, LA
Built 1960 Load: 16.3 t ADT: 4,562
LA0037
PoorOver: CREEK
2.6 M SW OF LA 10, St. Helena, LA
Built 1958 Load: 16.3 t ADT: 1,730
LA0463
PoorOver: LITTLE BRUSHY CREEK
3.7 MI NORTH OF LA 10, Vernon, LA
Built 1944 Load: 16.3 t ADT: 482
LA0463
PoorOver: DRAIN
12.7 MI NORTH OF LA 10, Vernon, LA
Built 1944 Load: 16.3 t ADT: 482
Canfield Rd
PoorOver: WESTFORK BAYOU-CANFIELD
.7 MI NE LA 965-US 61 JCT, West Feliciana, LA
Built 1993 Load: 16.3 t ADT: 180
LA0513
PoorOver: BRUSHY BAYOU
1.81 MI NORTH OF LA 483, De Soto, LA
Built 1969 Load: 16.5 t ADT: 243
IOWA AVENUE
PoorOver: DRAINAGE DITCH
0.4 MI N OF 3rd ST, Jefferson Davis, LA
Built 1968 Load: 16.5 t ADT: 200
DUGAS RD.
PoorOver: DITCH
0.5 MI. W. of LA 26, Jefferson Davis, LA
Built 1976 Load: 16.5 t ADT: 100
SOUTH ADAMS STREET
PoorOver: EAST LACASSINE BAYOU
0.1 MI S of US 90, Jefferson Davis, LA
Built 1970 Load: 16.5 t ADT: 300
ESTES RD.
PoorOver: DRAIN
1.7 MI W of LA 102, Jefferson Davis, LA
Built 1970 Load: 16.5 t ADT: 130
LA0413
PoorOver: FALSE BAYOU
0.1 Mi. N of LA 414, Pointe Coupee, LA
Built 1972 Load: 16.5 t ADT: 5,896
Potato Farm Rd
PoorOver: CAMPGROUND CREEK
0.49 MI. N. OF SUNSET RD., Rapides, LA
Built 1978 Load: 16.5 t ADT: 75
Potato Farm Rd
PoorOver: LEMEUSE CREEK
2.5 MI. N. OF SUNSET RD., Rapides, LA
Built 1978 Load: 16.5 t ADT: 70
LA0752
PoorOver: DRAINAGE CANAL
0.64 MI WEST OF LA 751, St. Landry, LA
Built 1968 Load: 16.5 t ADT: 475
US0011
PoorOver: NO&NE RAILROAD
1.05 MI S OF I-12 EB, St. Tammany, LA
Built 1937 Load: 16.5 t ADT: 15,607
Tiger branch
PoorOver: BR. OVER TIGER BRANCH
1.40 EAST OF LA 25, St. Tammany, LA
Built 1987 Load: 16.5 t ADT: 300
W. Yellow water Rd
PoorOver: CREEK
1.2 MI NW OF LA 51 E, Tangipahoa, LA
Built 1978 Load: 16.5 t ADT: 1,220
LA0887
PoorOver: BLACK RIVER BAYOU
1.0 MI SOUTH OF LA 887, Tensas, LA
Built 1970 Load: 16.5 t ADT: 58
E WOODLAWN RANCH R
PoorOver: GRAND CAILLOU BAYOU
0.2 MI E OF LA 57, Terrebonne, LA
Built 1980 Load: 16.5 t ADT: 4,278
Savanne Rd
PoorOver: HANSON CANAL
00.82 N. of LA 182, Terrebonne, LA
Built 1967 Load: 16.5 t ADT: 2,200
LA0009
PoorOver: BLOOMS MILL CREEK
4.3 MI NORTH OF NORTH INT, Bienville, LA
Built 1971 Load: 16.8 t ADT: 771
US0071
PoorOver: ICG RR
.5 MI NORTH OF I-20, Caddo, LA
Built 1937 Load: 16.8 t ADT: 5,484
LOUISIANA AVE
PoorOver: CONTRABAND BAYOU
0.3 MI. N. OF LA 3186, Calcasieu, LA
Built 1957 Load: 16.8 t ADT: 8,942
Sanchez Rd
PoorOver: GRAND BAYOU
0065 LOG MI FROM INT, Lafourche, LA
Built 1955 Load: 16.8 t ADT: 901
GRAVOLET RD
PoorOver: DRAINAGE CANAL
0.01 MI. W. OF HWY. 39, Plaquemines, LA
Built 1968 Load: 16.8 t ADT: 150
LA0331
PoorOver: BAYOU TIGRE
0.55 MI S. OF LA 14, Vermilion, LA
Built 1977 Load: 16.8 t ADT: 1,518
US0371
PoorOver: BRUSHY CREEK
2.8 Mi. North of LA 531, Webster, LA
Built 1950 Load: 16.8 t ADT: 6,469
LA0127
PoorOver: FLAT CREEK RELIEF
4.18 MI. NW CALDWELL LINE, Winn, LA
Built 1980 Load: 16.8 t ADT: 291
JOSEPH THOMAS RD
PoorOver: PATRICK CREEK
1 MI S HWY 80, Ouachita, LA
Built 1960 Load: 17.0 t ADT: 104
MLK Jr. Dr.
PoorOver: PONCHATOULA CREEK
1.2 MI NE OF JCT 190&1065, Tangipahoa, LA
Built 1982 Load: 17.0 t ADT: 2,010
Benton Rd
PoorOver: Lyons Point Gully
0.1 Mi. S. of La 92, Acadia, LA
Built 1974 Load: 17.1 t ADT: 96
HerbertJuneau Xing
PoorOver: BAYOU DES GLAISES
0.01 MI. EAST OF LA 451, Avoyelles, LA
Built 1979 Load: 17.1 t ADT: 80
Boggy Bayou Rd
PoorOver: CREEK
LOGMI 5.8 MI E Hwy 129, Concordia, LA
Built 1960 Load: 17.1 t
Nelson Rd
PoorOver: BRUSHY CREEK
0.13 M. W. OF LA 120, Natchitoches, LA
Built 1978 Load: 17.1 t ADT: 72
LA0594
PoorOver: CANEY CREEK
4.02 MI NORTH OF US 80, Ouachita, LA
Built 1954 Load: 17.1 t ADT: 2,642
BUCKY MURDOCK RD
PoorOver: BAYOU SCIE
0.75 MI. SOUTH OF US 171, Sabine, LA
Built 1965 Load: 17.1 t ADT: 200
LA0038
PoorOver: DRAIN
0.6 M E OF LA 432, St. Helena, LA
Built 1954 Load: 17.1 t ADT: 933
Showing 11,651-11,700 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 |