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
I0049
GoodOver: DOLET SWAMP
1.04 M N OF LA 177 INTR, De Soto, LA
Built 1989 Load: 36.3 t ADT: 22,806
I0049
GoodOver: I-49 OVER ASSEFF RD INTG
2.97 MI S OF US 84 INTG, De Soto, LA
Built 1987 Load: 36.3 t ADT: 29,022
I0049
GoodOver: I-49 OVER ASSEFF RD INTG
2.98 MI S OF US 84 INTG, De Soto, LA
Built 1987 Load: 36.3 t ADT: 28,142
I0049
GoodOver: I-49, KCS RR
0.56 MI N OF LA 5 OVP, De Soto, LA
Built 1987 Load: 36.3 t ADT: 29,022
I0049
GoodOver: I-49, KCS RR
0.56 MI NO OF LA 5 OVP, De Soto, LA
Built 1987 Load: 36.3 t ADT: 28,142
PECOS AVE
GoodOver: SHOE CREEK
0.3 MI W of Prairie Dr, East Baton Rouge, LA
Built 2019 Load: 36.3 t ADT: 1,603
Cuyhanga Pkwy
GoodOver: JONES CREEK
0.3 MI E OF MONTERREY BLV, East Baton Rouge, LA
Built 2017 Load: 36.3 t ADT: 25
LA0067
GoodOver: WHITE BAYOU
3.75M NORTH OF LA 3006, East Baton Rouge, LA
Built 1992 Load: 36.3 t ADT: 15,087
I0110
GoodOver: EVANGELINE ST. OFF RAMP
I0110, East Baton Rouge, LA
Built 1970 Load: 36.3 t ADT: 4,185
I0012
GoodOver: CEDARCREST DRIVE
I0012, East Baton Rouge, LA
Built 1986 Load: 36.3 t ADT: 28,013
I0012
GoodOver: CEDARCREST DRIVE
I0012, East Baton Rouge, LA
Built 1986 Load: 36.3 t ADT: 32,092
Cemetery Rd.
GoodOver: CREEK
0.70 Mi W of US 167, Evangeline, LA
Built 1986 Load: 36.3 t ADT: 402
LAMKIN RD
GoodOver: CYPRESS BAYOU
.25 MI. E. INT. 076, Jackson, LA
Built 1984 Load: 36.3 t ADT: 85
LA0023
GoodOver: VERRET CANAL
1.9 MI SOUTH OF US 90B, Jefferson, LA
Built 1975 Load: 36.3 t ADT: 25,594
11TH ST
GoodOver: 3 MILE CANAL
0.1 MI. EAST OF MANHATTAN, Jefferson, LA
Built 1985 Load: 36.3 t ADT: 500
LINSCOMB ROAD
GoodOver: ROGERS GULLY
1.2 MI E of LA 26, Jefferson Davis, LA
Built 2004 Load: 36.3 t ADT: 50
Chemin Metairie
GoodOver: Parc Perdu Bayou
.1 M West of Detente Rd., Lafayette, LA
Built 2008 Load: 36.3 t ADT: 2,284
Kidder Rd
GoodOver: DRAIN
1.49 MI N OF LA 1252, Lafayette, LA
Built 2013 Load: 36.3 t ADT: 317
S. Domingue Ave.
GoodOver: Ill Des Cannes-Lat 7
0.09 MI N of Ridge Rd, Lafayette, LA
Built 2007 Load: 36.3 t ADT: 1,782
Dulles Dr.
GoodOver: COULEE ILE DES CANNES
0.9 W of La 93, Lafayette, LA
Built 2004 Load: 36.3 t ADT: 1,703
LA0649
GoodOver: BAYOU LAFOURCHE
.01 MI NORTH OF LA 1, Lafourche, LA
Built 1996 Load: 36.3 t ADT: 1,991
Bellevue St.
GoodOver: Hemphill Creek
0.4 MI SW OF E BRADFORD S, LaSalle, LA
Built 1997 Load: 36.3 t ADT: 250
DELLA RD
GoodOver: CYPRESS CREEK
2.0 MILES EAST OF US 167, Lincoln, LA
Built 2011 Load: 36.3 t
I0049
GoodOver: BAYOU BARBUE
0.84 MI. NORTH OF LA 490, Natchitoches, LA
Built 1984 Load: 36.3 t ADT: 18,305
I0610
GoodOver: OFF RP TO NEW ORLEANS
.02 MI EAST OF LA 3071, Orleans, LA
Built 1975 Load: 36.3 t ADT: 7,620
I0610
GoodOver: ON RP FROM ELYSIAN FIELD
.4 MI EAST OF LA 3071, Orleans, LA
Built 1975 Load: 36.3 t ADT: 7,620
I0610
GoodOver: OFF RP TO ELYSIAN FIELDS
.4 MI EAST OF LA 3071, Orleans, LA
Built 1975 Load: 36.3 t ADT: 7,620
I0610
GoodOver: OFF RP TO ELYSIAN FIELDS
.6 MI EAST OF LA 3071, Orleans, LA
Built 1975 Load: 36.3 t ADT: 7,620
I0610
GoodOver: ON RP FROM ELYSIAN FIELD
.7 MI EAST OF LA 3071, Orleans, LA
Built 1975 Load: 36.3 t ADT: 7,620
I0510
GoodOver: GROUND
1.27M NORTH OF US 90, Orleans, LA
Built 1992 Load: 36.3 t ADT: 7,620
I0010
GoodOver: CITY STREETS/RR
2.4 MI EAST OF LA 39, Orleans, LA
Built 1992 Load: 36.3 t ADT: 5,696
ADAMS ST
GoodOver: E PRONG YOUNGS BAYOU
1.6 MI W OF US 165, Ouachita, LA
Built 2017 Load: 36.3 t ADT: 36
larry henry road
GoodOver: Longs Creek
0.7 Mi. SE of La 34, Ouachita, LA
Built 2018 Load: 36.3 t ADT: 130
OLD STERLINGTON RD
GoodOver: CHAUVIN BAYOU
0.7 MI NE of US 165 N, Ouachita, LA
Built 2004 Load: 36.3 t ADT: 10,800
US0167
GoodOver: RED RIVER, GREER ST.
US 167 SOUTH @ RED RIVER, Rapides, LA
Built 1996 Load: 36.3 t ADT: 27,628
LA0112
GoodOver: ROCKY BAYOU
7.12 MI. WEST OF US 165, Rapides, LA
Built 1993 Load: 36.3 t ADT: 1,268
LA0457
GoodOver: WILSON BAYOU
4.53 MI. NE OF US 71, Rapides, LA
Built 1994 Load: 36.3 t ADT: 806
LA0457
GoodOver: BAYOU LATANIER
3.09 MI. SOUTH OF LA 3170, Rapides, LA
Built 1994 Load: 36.3 t ADT: 806
LA0113
GoodOver: SWETZ BRANCH
3.0 MI. EAST OF LA 462, Rapides, LA
Built 1994 Load: 36.3 t ADT: 822
LA0113
GoodOver: PRAIRIE BRANCH
2.04 MI. E OF INT LA112, Rapides, LA
Built 1994 Load: 36.3 t ADT: 2,071
LA0113
GoodOver: MASTERS CREEK
6.36 MI. E OF INT LA112, Rapides, LA
Built 1995 Load: 36.3 t ADT: 2,071
LA0116
GoodOver: FLAGON CREEK
2.83 MI NE JCT US 165, Rapides, LA
Built 1983 Load: 36.3 t ADT: 6,942
LA0028
GoodOver: CYPRESS BAYOU
4.22 MI. EAST OF LA 465, Rapides, LA
Built 1973 Load: 36.3 t ADT: 7,065
I0049
GoodOver: BAYOU JEAN DE JEAN
1.8 M NORTH OF LA 1200, Rapides, LA
Built 1989 Load: 36.3 t ADT: 11,969
LA1208-4
GoodOver: DITCH
0.45 MI. EAST OF US 71, Rapides, LA
Built 1989 Load: 36.3 t ADT: 4,598
LA3265
GoodOver: BAYOU CLEAR
0.25 MI. EAST OF US 165, Rapides, LA
Built 2005 Load: 36.3 t ADT: 4,368
LA0118
GoodOver: KIB CREEK
12.26 MI. EAST OF US 171, Sabine, LA
Built 2010 Load: 36.3 t ADT: 1,471
US0171
GoodOver: SAN JOSE CREEK
1.06 MI. S OF E JCT. LA 6, Sabine, LA
Built 2006 Load: 36.3 t ADT: 5,746
US0171
GoodOver: KCS RR
0.45 MI. NORTH OF LA 483, Sabine, LA
Built 2003 Load: 36.3 t ADT: 4,790
LA0191
GoodOver: BEECH BAYOU
2.08 MI. NORTH OF LA 1215, Sabine, LA
Built 1982 Load: 36.3 t ADT: 1,210
Showing 9,201-9,250 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 |