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
LA0129
GoodOver: CROSS BAYOU
.7 MI SOUTH OF LA 565, Concordia, LA
Built 1978 Load: 33.6 t ADT: 1,684
US0061
GoodOver: MONTE SANO BAYOU
0.3 M W of US 61&LA 67, East Baton Rouge, LA
Built 1976 Load: 33.6 t ADT: 2,649
US0061
GoodOver: MONTE SANO BAYOU
0.3 M W of US 61&LA 67, East Baton Rouge, LA
Built 1976 Load: 33.6 t ADT: 18,831
US0061
GoodOver: MONTE SANO BAYOU
0.3 M W of US 61&LA 67, East Baton Rouge, LA
Built 1976 Load: 33.6 t ADT: 18,831
US0061
GoodOver: MONTE SANO BAYOU
0.3 M W of US 61&LA 67, East Baton Rouge, LA
Built 1976 Load: 33.6 t ADT: 713
LA0408
GoodOver: CYPRESS BAYOU
2.2 M East of LA 67, East Baton Rouge, LA
Built 1988 Load: 33.6 t ADT: 26,976
LA0408
GoodOver: CYPRESS BAYOU
1.7 M E of LA 67&LA 408, East Baton Rouge, LA
Built 1984 Load: 33.6 t ADT: 19,515
LA0408
GoodOver: BLACKWATER BAYOU
0.4 Mi. E. of LA 410, East Baton Rouge, LA
Built 1988 Load: 33.6 t ADT: 26,976
I0110
GoodOver: GROUND
I-110 / WELLER AVE. INTG., East Baton Rouge, LA
Built 1970 Load: 33.6 t ADT: 8,250
I0110
GoodOver: EVAGELINE ST. ON RAMP
I0110, East Baton Rouge, LA
Built 1970 Load: 33.6 t ADT: 8,250
LA0095
GoodOver: BEACONS GULLY
1.45 MI EAST OF LA 104, Evangeline, LA
Built 1965 Load: 33.6 t ADT: 1,107
I0010
GoodOver: ATCHAFALAYA FLOODWAY
3.8 M W of LA 3000, Iberville, LA
Built 1991 Load: 33.6 t ADT: 20,508
LA0022
GoodOver: TICKFAW RIVER
2.1 MI FR JCT LA444-LA22, Livingston, LA
Built 2000 Load: 33.6 t ADT: 2,729
I0020
GoodOver: DRAINAGE
2.8 MI WEST OF LA 577, Madison, LA
Built 1971 Load: 33.6 t ADT: 162
LA0118
GoodOver: LITTLE SANDY CREEK
1.2 MI. EAST OF LA 117, Natchitoches, LA
Built 1998 Load: 33.6 t ADT: 164
US0090-B
GoodOver: GROUND
0.05 MI E OF US 90, Orleans, LA
Built 1960 Load: 33.6 t ADT: 7,620
I0610
GoodOver: OFF RAMP TO I 610 E
.5 MI EAST OF I-10, Orleans, LA
Built 1963 Load: 33.6 t ADT: 7,620
I0510
GoodOver: R/R
0.75M NORTH GULF OUTLET, Orleans, LA
Built 1992 Load: 33.6 t ADT: 7,620
PINE BLUFF RD
GoodOver: DRAIN TO CYPRESS CREEK
2.1 MI S. HWY. 557, Ouachita, LA
Built 1985 Load: 33.6 t ADT: 431
I0049
GoodOver: UP RR
5.92 MI. NORTH OF LA 3265, Rapides, LA
Built 1992 Load: 33.6 t ADT: 20,561
I0049
GoodOver: UP RAILROAD
1.54 MI. NROTH OF LA 3250, Rapides, LA
Built 1994 Load: 33.6 t ADT: 45,104
LA0515
GoodOver: LOGGY BAYOU
2.1 MI NORTH OF LA 154, Red River, LA
Built 1980 Load: 33.6 t ADT: 203
I0049
GoodOver: E.Grolee St/MPRR
3.55 Mi S of LA 744, St. Landry, LA
Built 1983 Load: 33.6 t ADT: 15,642
US0090/Ramp C
GoodOver: 6th St.
8.9 MI EAST OF LA 182, St. Mary, LA
Built 1977 Load: 33.6 t ADT: 12,192
US0090
GoodOver: RAMP G
0.02 MI SW OF LA 182, St. Mary, LA
Built 1977 Load: 33.6 t ADT: 12,192
I0055
GoodOver: PONCHATOULA CR
I0055, Tangipahoa, LA
Built 1960 Load: 33.6 t ADT: 790
I0055
GoodOver: PONCHATOULA CR.
I0055, Tangipahoa, LA
Built 1960 Load: 33.6 t ADT: 988
HOLLYWOOD RD
GoodOver: B TERREBONNE
0.6 MI N OF LA 664, Terrebonne, LA
Built 1976 Load: 33.6 t ADT: 15,540
US0090
GoodOver: SWAMP
.09 MI EAST OF LA 3052, Terrebonne, LA
Built 1994 Load: 33.6 t ADT: 3,007
US0090
GoodOver: ONRAMP TO 90 FROM 311
0.14 MI W OF LA 311, Terrebonne, LA
Built 1987 Load: 33.6 t ADT: 12,192
US0090
GoodOver: OFFRAMP FROM 90 TO 311
0.12 MI W OF LA 311, Terrebonne, LA
Built 1987 Load: 33.6 t ADT: 12,192
LA0438
GoodOver: BOGUE CHITTO RIVER
LA0438, Washington, LA
Built 1967 Load: 33.6 t ADT: 666
LA0415
GoodOver: KAHNS RD/MO PAC RR
1.0 M S OF LA 1, West Baton Rouge, LA
Built 1994 Load: 33.6 t ADT: 21,189
LA0415
GoodOver: BRIDES OVER MO PAC RR
1.1 M S of LA 1, West Baton Rouge, LA
Built 1994 Load: 33.6 t ADT: 521
Big Jr. Crossing
GoodOver: BAYOU DES GLAISES
0.15 MI. EAST OF LA 451, Avoyelles, LA
Built 1998 Load: 33.7 t ADT: 200
Don's Crossing
GoodOver: BAYOU DES GLAISES
0.02 MI. EAST OF LA 451, Avoyelles, LA
Built 1998 Load: 33.7 t ADT: 200
Clemen Luneau Rd
GoodOver: LAC LONG
1.5 MI. N OF CARDINAL LP., Avoyelles, LA
Built 1998 Load: 33.7 t ADT: 40
Silkwood
GoodOver: Drain
0.98 MI. W. OF LA 3 ON SI, Bossier, LA
Built 2016 Load: 33.7 t ADT: 100
OCKLEY DRIVE
GoodOver: OCKLEY DITCH
0.2 MI EAST OF LINE AVE., Caddo, LA
Built 2000 Load: 33.7 t ADT: 1,600
Rushing St
GoodOver: CANAL
0.1M E of LA165, Caldwell, LA
Built 1988 Load: 33.7 t ADT: 250
Fisher Rd
GoodOver: CREEK
0.2 MI NW OF REED RD, Caldwell, LA
Built 1988 Load: 33.7 t ADT: 220
Boggy Bayou Rd
GoodOver: BOGGY BAYOU
LOGMI 1.3 E OF LA129, Concordia, LA
Built 1993 Load: 33.7 t ADT: 300
Woodville St
GoodOver: DRAIN CREEK
1 MI. W. OF LA 67, East Feliciana, LA
Built 2006 Load: 33.7 t ADT: 84
Huggins Lane
GoodOver: TURKEY CREEK
LOGMI 3.56 FR 137 TO ODE, Franklin, LA
Built 1994 Load: 33.7 t ADT: 170
Jim Albert Rd
GoodOver: DEER CREEK
0.01M FROM 496 TO 527, Franklin, LA
Built 1992 Load: 33.7 t ADT: 30
Hollywood Lake Lp
GoodOver: CREEK
.54 MI W of Frnch Trn Rd, Franklin, LA
Built 1987 Load: 33.7 t ADT: 70
WPA Rd
GoodOver: TURKEY CREEK
1.96 mi. S of LA 132, Franklin, LA
Built 1994 Load: 33.7 t ADT: 40
LA3098
GoodOver: WHEAT BRANCH
1.38 M N OF N JCT. LA 123, Grant, LA
Built 2008 Load: 33.7 t ADT: 204
Dyson Creek Rd
GoodOver: DYSON CREEK
1.6 M. W. OF US 165, Grant, LA
Built 1984 Load: 33.7 t ADT: 240
Enterprise Blvd
GoodOver: DRAINAGE CANAL
2.7 MI. NORTH OF LA 77 EN, Iberville, LA
Built 2007 Load: 33.7 t ADT: 3,094
Showing 8,801-8,850 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 |