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
LA0849
GoodOver: CREEK
0.30 M E of LA 126, Caldwell, LA
Built 1984 Load: 32.4 t ADT: 739
LA0843
GoodOver: CREEK
0.75 M E of US 165, Caldwell, LA
Built 1984 Load: 32.4 t ADT: 254
LA0843
GoodOver: CREEK
0.02 M E of US 165, Caldwell, LA
Built 1984 Load: 32.4 t ADT: 254
Jairl Rd
GoodOver: CREEK
1M E of La 843, Caldwell, LA
Built 1988 Load: 32.4 t ADT: 60
Etheridge Rd
GoodOver: CREEK
0.2M SE of LA 506, Caldwell, LA
Built 1996 Load: 32.4 t ADT: 30
Hooterville Rd
GoodOver: CREEK
.2 M West of LA 506, Caldwell, LA
Built 1998 Load: 32.4 t ADT: 70
Big Ridge Rd
GoodOver: SAWYER POND BAYOU
0.05 mi E of Dannehl Rd, Caldwell, LA
Built 1996 Load: 32.4 t ADT: 40
Berry Rd
GoodOver: Creek
0.8M N of La126, Caldwell, LA
Built 1988 Load: 32.4 t ADT: 50
Hebron Rd
GoodOver: HART CREEK
2.19M NW of LA 506, Caldwell, LA
Built 1999 Load: 32.4 t ADT: 100
Wiles Rd
GoodOver: RICHLAND CREEK
0.3M N of LA 126, Caldwell, LA
Built 1988 Load: 32.4 t ADT: 70
7 Runs Road
GoodOver: WHITE OAK CREEK
0.5 M N of Chester Rd, Caldwell, LA
Built 2001 Load: 32.4 t ADT: 50
Countrywood Rd
GoodOver: CREEK
LOG MI 0.12 FR 293 TO 294, Caldwell, LA
Built 1997 Load: 32.4 t ADT: 70
Richmond Comm Rd
GoodOver: WINN BRANCH CREEK
0.5M W of LA 846, Caldwell, LA
Built 1996 Load: 32.4 t ADT: 110
South Blankston Rd
GoodOver: Ballard Bayou
4.1 MI SW of HWY 165, Caldwell, LA
Built 1996 Load: 32.4 t ADT: 99
LA0008
GoodOver: CREEL CREEK
1.6 MI EAST OF THE EAST I, Catahoula, LA
Built 1996 Load: 32.4 t ADT: 1,527
US0079
GoodOver: US 79 BYPASS OVER CREEK
1.1 MILES SOUTH OF LA 2, Claiborne, LA
Built 2010 Load: 32.4 t ADT: 4,559
St. John Rd
GoodOver: ISAAC CREEK
1.01 MI SOUTH OF JCT LA 1, Claiborne, LA
Built 2012 Load: 32.4 t ADT: 300
Richardson Loop
GoodOver: TRIB TO BAYOU DARBONNE
1.37 MI WEST OF JCT LA 9, Claiborne, LA
Built 2012 Load: 32.4 t ADT: 150
Cypress Bottom Rd
GoodOver: LITTLE CORNEY BAYOU
3.1 MILES NORTH OF LA 2, Claiborne, LA
Built 2009 Load: 32.4 t ADT: 90
Fellowship Rd
GoodOver: GREER CREEK
1.25 MI EAST OF JCT LA 9, Claiborne, LA
Built 2012 Load: 32.4 t ADT: 200
LA0002
GoodOver: BEAR CREEK
6.09 MI EAST OF US 79, Claiborne, LA
Built 1968 Load: 32.4 t ADT: 1,687
LA0002-A
GoodOver: ALFORD CREEK
7.1 MI EAST OF LA 520, Claiborne, LA
Built 1976 Load: 32.4 t ADT: 389
COOK RD
GoodOver: FRAZIER CREEK
2.0 M NORTH OF LA 9, Claiborne, LA
Built 1990 Load: 32.4 t ADT: 120
Harris Rd
GoodOver: CLEAR CREEK
3.0 MI S. OF US 79, Claiborne, LA
Built 2000 Load: 32.4 t ADT: 325
Oil Center Rd
GoodOver: INDIAN CREEK
3.0 MI. W. OF US 79, Claiborne, LA
Built 2000 Load: 32.4 t ADT: 100
Holly Ridge Rd
GoodOver: DOE BRANCH
2.26 MI. N. OF LA 2, Claiborne, LA
Built 2000 Load: 32.4 t ADT: 150
John Kelly Rd
GoodOver: JOHN KELLY RD, BEA. CREE
0.09 MI SO OF LA HWY 9, Claiborne, LA
Built 1990 Load: 32.4 t ADT: 100
LA3248
GoodOver: CREEK
.61 MILES SOUTH OF THE EA, De Soto, LA
Built 2012 Load: 32.4 t ADT: 42
US0171
GoodOver: TRENTON RD., RR
6.1 MI. N.OF LA 512, De Soto, LA
Built 2009 Load: 32.4 t ADT: 5,659
LA3248
GoodOver: CREEK
1.72 MILES SOUTH OF WEST, De Soto, LA
Built 2012 Load: 32.4 t ADT: 42
LA0346
GoodOver: LA 346 OVER TEN MI. BAYO
2.2 I. E. OF LA 346 AND L, De Soto, LA
Built 2013 Load: 32.4 t ADT: 718
MOUNCE ROAD
GoodOver: TRIB TO GRAND CANE BAYOU
3 MI SW OF US 171, De Soto, LA
Built 2020 Load: 32.4 t ADT: 225
Hunter Rd
GoodOver: TRIB. TO CLEMENT CREEK
1.5 MILES SOUTH OF US 84, De Soto, LA
Built 2011 Load: 32.4 t ADT: 25
George Hunt Rd
GoodOver: TRIB TO B NA BONCHASE
1.05 MI SOUTH OF LA 3015, De Soto, LA
Built 2011 Load: 32.4 t ADT: 130
LA0175
GoodOver: BAYOU NA BONCHASSE RELIE
4.59 MI N. OF US 84, De Soto, LA
Built 2000 Load: 32.4 t ADT: 4,494
I0049
GoodOver: I-49 OVER CREEK
0.59 MI N OF LA 509 INTR, De Soto, LA
Built 1985 Load: 32.4 t ADT: 29,022
I0049
GoodOver: I-49 OVER CREEK
0.59 MI N OF LA 509 INTR, De Soto, LA
Built 1985 Load: 32.4 t ADT: 28,142
LA0510
GoodOver: CREEK
1.60 MI S OF US 84, De Soto, LA
Built 1981 Load: 32.4 t ADT: 233
Jacobs St
GoodOver: BAYOU SAN PATRICIO
0.35 MI EAST OF LA 513, De Soto, LA
Built 1989 Load: 32.4 t ADT: 350
George Hunt Rd
GoodOver: BAYOU NA BONCHASSE
1.2 MI. N. OF US 171, De Soto, LA
Built 2003 Load: 32.4 t ADT: 450
NORTH FOSTER DR.
GoodOver: HURRICANE CREEK
1.7 M S OF US 61, East Baton Rouge, LA
Built 1970 Load: 32.4 t ADT: 6,851
LA1068
GoodOver: CREEK
450 Ft N of LA 73, East Baton Rouge, LA
Built 1990 Load: 32.4 t ADT: 12,766
LA0064
GoodOver: CREEK
1.1 M E of LA 67, East Baton Rouge, LA
Built 1957 Load: 32.4 t ADT: 11,608
LA0030
GoodOver: Stream
1.4 MI SW OF LA 42, East Baton Rouge, LA
Built 2020 Load: 32.4 t ADT: 12,779
Lovett Rd
GoodOver: BAYOU
0.6 Mi E of LA 946, East Baton Rouge, LA
Built 2012 Load: 32.4 t ADT: 4,640
Chaney Rd
GoodOver: DRAINAGE BAYOU
0.4 Mi. N of Peairs Rd, East Baton Rouge, LA
Built 2009 Load: 32.4 t ADT: 478
Prescott Rd
GoodOver: HURRICANE CREEK
0.1 MILES WEST OF MOHICAN, East Baton Rouge, LA
Built 2015 Load: 32.4 t ADT: 7,600
US0061
GoodOver: JONES CREEK
1.0 M SE of LA 37&US 61, East Baton Rouge, LA
Built 1958 Load: 32.4 t ADT: 45,876
US0061
GoodOver: HURRICANE CREEK
0.7 M NW of LA 37&US 61, East Baton Rouge, LA
Built 1968 Load: 32.4 t ADT: 41,834
LA0067
GoodOver: STREAM
1.0 Mi N of LA 423, East Baton Rouge, LA
Built 1976 Load: 32.4 t ADT: 22,615
Showing 8,001-8,050 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 |