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
US0090
Structurally DeficientOver: WEST PEARL RIVER
US0090, St. Tammany, LA
Built 1933 Load: 21.1 t ADT: 1,215
LA0154
Structurally DeficientOver: BRUSHY CREEK
3.1 MI N. of LA 516, Bienville, LA
Built 1974 Load: 21.4 t ADT: 429
CC Camp Road
Structurally DeficientOver: LAKE CHICOT
1.5M NE OF LA 3042, Evangeline, LA
Built 1980 Load: 21.4 t ADT: 150
LA3087
Structurally DeficientOver: HOLLYWOOD CANAL
1.20 MI S. OF JCT US90, Lafourche, LA
Built 1988 Load: 21.4 t ADT: 13,617
LA3087
Structurally DeficientOver: HOLLYWOOD CANAL
1.20 MI S OF JCT US90, Lafourche, LA
Built 1988 Load: 21.4 t ADT: 8,036
EVANS RD
Structurally DeficientOver: LONG BRIDGE CREEK
.1 MI. H. W. MORGAN, Ouachita, LA
Built 1965 Load: 21.6 t ADT: 4
LA1190
Structurally DeficientOver: DRAINAGE DITCH
0.23 MILES EAST OF LA 452, Avoyelles, LA
Built 1970 Load: 21.7 t ADT: 3,440
LA0120
Structurally DeficientOver: MACHIS BAYOU
9.11 MI. EAST OF LA 117, Natchitoches, LA
Built 1930 Load: 21.7 t ADT: 665
LA0789
Structurally DeficientOver: FOSTER CREEK
4.4 MI SOUTH OF LA 169, Caddo, LA
Built 1971 Load: 22.0 t ADT: 1,504
US0071
Structurally DeficientOver: BAYOU RIGOLETTE
.7 MI SOUTH OF LA 8, Grant, LA
Built 1950 Load: 22.4 t ADT: 1,931
MOBILE STREET
Structurally DeficientOver: WHISKEY CHITTO CREEK
VE 844 416, Vernon, LA
Built 1978 Load: 22.4 t ADT: 720
LA0361
Structurally DeficientOver: BAYOU COCO
6.92 MI. SOUTH OF LA 29, Avoyelles, LA
Built 1930 Load: 22.7 t ADT: 668
Chatlain Crossing
Structurally DeficientOver: BAYOU NATCHITOCHES
APP. 10 M. E. OF LA 451, Avoyelles, LA
Built 2000 Load: 22.7 t ADT: 150
LA0394
Structurally DeficientOver: Woodard Branch
0.9 MI. E OF US 171, Beauregard, LA
Built 1958 Load: 22.7 t ADT: 490
Port Hickey Rd
Structurally DeficientOver: DRAINAGE BAYOU
2.5 M W of US 61, East Baton Rouge, LA
Built 1960 Load: 22.7 t ADT: 941
Port Hudson-Pride
Structurally DeficientOver: DUFF BAYOU
6.2 MI. E. of LA 67, East Baton Rouge, LA
Built 1960 Load: 22.7 t ADT: 1,298
LA0960
Structurally DeficientOver: BLUFF CREEK
.4 miles N of La 63, East Feliciana, LA
Built 1967 Load: 22.7 t ADT: 653
LA0970
Structurally DeficientOver: BAYOU MOREAU
LA0970, Pointe Coupee, LA
Built 1971 Load: 22.7 t ADT: 84
LA3070
Structurally DeficientOver: COULEE DE SAULE
3 MI NORTH OF LA 100, Acadia, LA
Built 1980 Load: 23.0 t ADT: 956
LA0374
Structurally DeficientOver: BAYOU
4.5 MI EAST OF LA 3277, Evangeline, LA
Built 1956 Load: 23.6 t ADT: 632
LA0034
Structurally DeficientOver: CREEK
1.42 MI EAST OF US 71, Grant, LA
Built 1951 Load: 23.6 t ADT: 482
Lower Zachary Rd
Structurally DeficientOver: WHITE BAYOU
1.1 Mi. W. of LA 67, East Baton Rouge, LA
Built 1970 Load: 23.7 t ADT: 1,889
LA0545
Structurally DeficientOver: DARBONNE BAYOU
2.8 MI NORTH OF LA 146, Lincoln, LA
Built 1973 Load: 23.7 t ADT: 404
LA1215
Structurally DeficientOver: TOLEDO BEND LAKE
2.29 MI. WEST OF LA 191, Sabine, LA
Built 1967 Load: 23.9 t ADT: 1,532
LA0935
Structurally DeficientOver: BLACK BAYOU
0.9 M W of LA 935&LA 431, Ascension, LA
Built 1974 Load: 24.0 t ADT: 4,835
US0071
Structurally DeficientOver: CROSS BAYOU
.1 MI NORTH OF LA 173, Caddo, LA
Built 1940 Load: 24.0 t ADT: 5,484
FDR 556
Structurally DeficientOver: PRAIRIE CREEK
LOGMI 1.40 FR 546 TO, Grant, LA
Built 1962 Load: 24.0 t ADT: 34
LA0010
Structurally DeficientOver: PALMETTO CO CANAL
9.60 MI WEST OF LA 105, St. Landry, LA
Built 1959 Load: 24.0 t ADT: 1,185
LA0454
Structurally DeficientOver: WIGGINS BAYOU
4.12 MILES SW OF LA 115, Avoyelles, LA
Built 1958 Load: 24.5 t ADT: 226
Stoney Point Burch
Structurally DeficientOver: SANDY CREEK
3.2 MI. S. OF PRIDE, East Baton Rouge, LA
Built 1965 Load: 24.5 t ADT: 332
Virgina St
Structurally DeficientOver: BAYOU BOEUF
0.08 MILE SOUTH OF LA 112, Rapides, LA
Built 1991 Load: 24.5 t ADT: 40
LA0499
Structurally DeficientOver: CREEK
8.5 MI NORTH OF LA 126, Winn, LA
Built 1967 Load: 24.5 t ADT: 114
PICARD RD
Structurally DeficientOver: D'INDE BAYOU
0.6 MI S. OF US90, Calcasieu, LA
Built 1968 Load: 24.9 t ADT: 2,741
LA0063
Structurally DeficientOver: SANDY CREEK
3.0 M NE of LA 67, East Feliciana, LA
Built 1957 Load: 24.9 t ADT: 1,584
LA1252
Structurally DeficientOver: BAYOU POINT BRULE
5.40 MI NE OF I-49 FR RD, Lafayette, LA
Built 1975 Load: 24.9 t ADT: 152
LA3008
Structurally DeficientOver: BLACK BAYOU
1.4 MI SOUTH OF LA 160, Webster, LA
Built 1974 Load: 24.9 t ADT: 145
LA0480
Structurally DeficientOver: BOGGY LAKE
5.05 MI SOUTH OF US 84, Red River, LA
Built 1975 Load: 25.3 t ADT: 2,011
LA0002-A
Structurally DeficientOver: INDIAN CREEK
2.0 MI EAST OF LA 159, Webster, LA
Built 1968 Load: 25.4 t ADT: 655
US0084
Structurally DeficientOver: DUGDEMONA RIVER
1.59 MI EAST OF US 167, Winn, LA
Built 1929 Load: 25.4 t ADT: 4,317
LA0499
Structurally DeficientOver: ICE BRANCH
10.1 MI NORTH OF LA 126, Winn, LA
Built 1967 Load: 25.4 t ADT: 114
LA0004
Structurally DeficientOver: DRAIN
4.1 MI EAST OF LA 155, Bienville, LA
Built 1927 Load: 26.0 t ADT: 890
LA0501
Structurally DeficientOver: BURNT CABIN CREEK
1.27 MI SOUTH OF LA 4, Bienville, LA
Built 1960 Load: 26.3 t ADT: 218
LA0160
Structurally DeficientOver: CYPRESS BAYOU RELIEF
.1 MI EAST OF LA 3, Bossier, LA
Built 1969 Load: 26.3 t ADT: 622
LA0506
Structurally DeficientOver: CASTOR CREEK RELF
7.0 MI WEST OF US 165, Caldwell, LA
Built 1971 Load: 26.3 t ADT: 306
LA0146
Structurally DeficientOver: CANEY CREEK
.6 MI EAST OF LA 9, Claiborne, LA
Built 1966 Load: 26.3 t ADT: 1,360
LA0146
Structurally DeficientOver: CREEK
1.32 MI EAST OF LA 9, Claiborne, LA
Built 1966 Load: 26.3 t ADT: 1,360
LA0146
Structurally DeficientOver: DRAIN
4.34 MI EAST OF LA 9, Claiborne, LA
Built 1968 Load: 26.3 t ADT: 1,360
LA3197
Structurally DeficientOver: HOUMA CANAL
.4 MI EAST OF LA 182, Terrebonne, LA
Built 1938 Load: 26.3 t ADT: 119
15th St
Structurally DeficientOver: BOGUE CHITTO CREEK
15TH AVE SOUTH OF LA 10, Washington, LA
Built 1974 Load: 26.6 t ADT: 229
Henderson Bayou Rd
Structurally DeficientOver: HENDERSON BAYOU
3.2M WS OF PORT VINCENT, Ascension, LA
Built 1990 Load: 27.2 t ADT: 300
Showing 12,601-12,650 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 |