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
IKE KELLY RD
GoodOver: LAPINE BAYOU
1.75 MI. EAST OF LA 557, Ouachita, LA
Built 2013 Load: 29.5 t ADT: 99
PRICE RD
GoodOver: CALCASIEU RIVER
3.5 MI S OF LA 465, Rapides, LA
Built 2018 Load: 29.5 t ADT: 142
PLAINVIEW RD
GoodOver: MILL CREEK
4.76 MI. EAST OF US 171, Sabine, LA
Built 1990 Load: 29.5 t ADT: 290
LA0039
GoodOver: CHALMETTE VISTA
1.9 MI NORTH OF LA 36, St. Bernard, LA
Built 2001 Load: 29.5 t ADT: 47,739
LA0039
GoodOver: CHALMETTE VISTA
1.9 MI NORTH OF LA 36, St. Bernard, LA
Built 2001 Load: 29.5 t ADT: 31,327
Guste Island Rd
GoodOver: Black Bayou
2.36 Mi. S. of LA 22, St. Tammany, LA
Built 1984 Load: 29.5 t ADT: 200
I0012
GoodOver: TCHEFUNCTE RIVER
1.6 miles west of US 190, St. Tammany, LA
Built 1975 Load: 29.5 t ADT: 29,236
N. CSWY BLVD N.B.
GoodOver: MONROE STREET O'PASS
0.30 MI N OF CAUSEWAY BR., St. Tammany, LA
Built 1993 Load: 29.5 t ADT: 1,600
N. CSWY APPR S.B.
GoodOver: MONROE St
1.4 Mi S of US 190, St. Tammany, LA
Built 1993 Load: 29.5 t ADT: 1,600
BOONE ST
GoodOver: CREEK
0.46 MI N.W. JCT. US 171, Vernon, LA
Built 1995 Load: 29.5 t ADT: 2,800
LA0016
GoodOver: CREEK
0.5 MI NORTH OF LA 25, Washington, LA
Built 2003 Load: 29.5 t ADT: 8,684
LA0966
GoodOver: THOMPSON CREEK TRIBUTARY
LA 966 1.97 MILES EAST OF, West Feliciana, LA
Built 2010 Load: 29.5 t ADT: 857
Fabacher Rd.
GoodOver: Bayou Pointe Aux Loups
0.3 MI W of LA 91, Acadia, LA
Built 2014 Load: 29.8 t ADT: 480
US0090
GoodOver: OFFGOING RAMP A.E.
2.56 Mi W of La 662 Exit, Assumption, LA
Built 1999 Load: 29.8 t ADT: 12,192
INNOVATION DRIVE
GoodOver: BENOIT BAYOU
1.0 MI W OF LA 3105, Bossier, LA
Built 2020 Load: 29.8 t ADT: 50
LA0002
GoodOver: KELLY BAYOU
0.47 MI EAST OF US 71, Caddo, LA
Built 2006 Load: 29.8 t ADT: 776
SOUTH LAKESHORE DR
GoodOver: TRIB. TO CROSS LAKE
7.4 MI EAST OF LA 169, Caddo, LA
Built 1994 Load: 29.8 t ADT: 1,100
PHILLIPS ST
GoodOver: CANAL
0.2 MI. S. OF US 90, Calcasieu, LA
Built 2009 Load: 29.8 t ADT: 250
LA0849
GoodOver: CREEK
1.95 MI E OF LA 850, Caldwell, LA
Built 1979 Load: 29.8 t ADT: 71
LA0146
GoodOver: DRAIN
1.49 MI. SOUTH OF US 79, Claiborne, LA
Built 2014 Load: 29.8 t ADT: 1,360
LA0037
GoodOver: BEAVER CREEK
LA 37 0.1 MILES EAST OF C, East Baton Rouge, LA
Built 2014 Load: 29.8 t ADT: 20,690
Balis Dr
GoodOver: DAWSON CREEK
0.2 M N OF LA 427, East Baton Rouge, LA
Built 2003 Load: 29.8 t ADT: 9,706
CANAL RD
GoodOver: DRAINAGE CANAL
0.5 MI W OF LA 45, Jefferson, LA
Built 2014 Load: 29.8 t ADT: 431
RANDOLPH ST
GoodOver: DRAINAGE CANAL
0.5 MI W OF LA 45, Jefferson, LA
Built 2013 Load: 29.8 t ADT: 431
W Napolean
GoodOver: Suburban Canal
.3 miles east of Clearvie, Jefferson, LA
Built 2003 Load: 29.8 t ADT: 21,460
W. Pont Des Mouton
GoodOver: CANAL
1.07 Mi W of I-49, Lafayette, LA
Built 2007 Load: 29.8 t ADT: 5,584
CHEM CUTOFF RD
GoodOver: CHEMIN A HAUT BAYOU
0.6 M EAST OF INT 267, Morehouse, LA
Built 1990 Load: 29.8 t ADT: 110
FH 59
GoodOver: KISATCHIE BAYOU
NO DATA ENTERED, Natchitoches, LA
Built 1967 Load: 29.8 t ADT: 80
GANDY RD
GoodOver: MIDKIFF CREEK
APP. 0.75 M. W. OF US 171, Sabine, LA
Built 1984 Load: 29.8 t ADT: 250
LA0039
GoodOver: GUERENGER CANAL
.9 MI NORTH OF LA 36, St. Bernard, LA
Built 2001 Load: 29.8 t ADT: 47,739
Booker Rd
GoodOver: SELSERS CREEK
2.0 MILES NORTHEAST OF LA, Tangipahoa, LA
Built 2011 Load: 29.8 t ADT: 915
Peterson Rd
GoodOver: CREEK
0.2 MILES NORTH OF LA 440, Washington, LA
Built 2014 Load: 29.8 t ADT: 325
LA0157
GoodOver: DORCHEAT B. RELIEF
4.1 MILES EAST OF US 371, Webster, LA
Built 2010 Load: 29.8 t ADT: 1,757
LA0157
GoodOver: CYPRESS CREEK
6.90 MILES EAST OF US 371, Webster, LA
Built 2010 Load: 29.8 t ADT: 1,757
LA0157
GoodOver: DORCHEAT B. RELIEF
4.35 MILES EAST OF US 371, Webster, LA
Built 2010 Load: 29.8 t ADT: 1,757
LA0010
GoodOver: GRANTS BAYOU EAST FORK
0.707 MILES WEST OF US 61, West Feliciana, LA
Built 2010 Load: 29.8 t ADT: 5,763
Ambassador Caffery
GoodOver: COULEE
.51 Mi S of LA 3184, Lafayette, LA
Built 1985 Load: 29.9 t ADT: 18,612
I0049
GoodOver: EMMANUEL ROAD
1.62 MI. SOUTH OF LA 119, Natchitoches, LA
Built 1985 Load: 29.9 t ADT: 28,142
I0049
GoodOver: RAPIDES STATION RD.
4.4 MI. NORTH OF LA 498, Rapides, LA
Built 1991 Load: 29.9 t ADT: 25,033
I0049
GoodOver: RAPIDES STATION RD.
4.4 MI. NORTH OF LA 498, Rapides, LA
Built 1991 Load: 29.9 t ADT: 20,561
I0310
GoodOver: SWAMP
0.1 M NORTH OF US 61, St. Charles, LA
Built 1992 Load: 29.9 t ADT: 15,642
I0310
GoodOver: SWAMP
0.15 M NORTH OF US 61, St. Charles, LA
Built 1992 Load: 29.9 t ADT: 15,642
I0310
GoodOver: RR/CANAL
0.10 M SOUTH OF US 61, St. Charles, LA
Built 1992 Load: 29.9 t ADT: 15,642
I0310
GoodOver: M P RR
.2 MI SOUTH OF LA 18, St. Charles, LA
Built 1979 Load: 29.9 t ADT: 15,642
US0090
GoodOver: WEST APPR ATCHAFALAYA R
0.2 MI SE OF LA 182, St. Mary, LA
Built 1977 Load: 29.9 t ADT: 7,885
US0090
GoodOver: RAMP 'M'
6.3 MI W OF LA 662, St. Mary, LA
Built 1984 Load: 29.9 t ADT: 24,384
LA0511
GoodOver: CREEK
0.1 MI E JCT LA 3132, Caddo, LA
Built 1984 Load: 30.1 t ADT: 21,080
LA0126
GoodOver: CREEK
8.2 MI W of LA 3239, Caldwell, LA
Built 1992 Load: 30.1 t ADT: 611
US0171
GoodOver: CITY ST, RR
5.5 MI. S. OF US 84, De Soto, LA
Built 2009 Load: 30.1 t ADT: 6,604
LA0863
GoodOver: DEER CREEK
0.90 M E of LA 4, Franklin, LA
Built 2013 Load: 30.1 t ADT: 449
Showing 7,601-7,650 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 |