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
LA0015
GoodOver: ASH SLOUGH
1.4 MI NORTH OF LA 868, Franklin, LA
Built 1987 Load: 39.9 t ADT: 9,661
US0167
GoodOver: BEAR CREEK
0.76 MI. SOUTH OF LA 500, Grant, LA
Built 2010 Load: 39.9 t ADT: 7,084
LA0122
GoodOver: PARASOL BAYOU
2.12 M E OF E JCT LA 471, Grant, LA
Built 1988 Load: 39.9 t ADT: 683
US0090
GoodOver: RODERE COULEE
0.57 Mi E of LA 329, Iberia, LA
Built 1999 Load: 39.9 t ADT: 1,856
LA0030
GoodOver: BAYOU PAUL
LA0030, Iberville, LA
Built 1966 Load: 39.9 t ADT: 17,089
I0010
GoodOver: BRIDGE 250 EBL
1.3 M E of LA 77, Iberville, LA
Built 1974 Load: 39.9 t ADT: 58,734
I0010
GoodOver: BR 250 WESTBOUND
1.3 M E of LA 77, Iberville, LA
Built 1974 Load: 39.9 t ADT: 41,644
Enterprise Blvd
GoodOver: BAYOU PLAQUEMINE
0.3 MI S/E OF LA 77, Iberville, LA
Built 2005 Load: 39.9 t ADT: 3,094
OLIVE GROVE RD
GoodOver: DRY CREEK
2.0 MILES SOUTH OF LA 556, Jackson, LA
Built 2014 Load: 39.9 t ADT: 68
Harvey BLVD
GoodOver: Outfall Canal
0.2 Mi. W. of LA 3017, Jefferson, LA
Built 2010 Load: 39.9 t ADT: 5,650
Harvey BLVD
GoodOver: Fallout Canal
0.2 Mi. W. of LA 3017, Jefferson, LA
Built 2010 Load: 39.9 t ADT: 5,650
Chateau BLVD
GoodOver: CANAL#7
1 MILE NORTH OF WEST ESPL, Jefferson, LA
Built 2008 Load: 39.9 t
Leblanc Rd.
GoodOver: ILE DES CANNES COULEE
0.30 Mi W of US 167, Lafayette, LA
Built 2013 Load: 39.9 t ADT: 620
LA0094
GoodOver: COULEE
1.62 MI E of US 90, Lafayette, LA
Built 2000 Load: 39.9 t ADT: 18,293
I0010
GoodOver: FRANCOIS COULEE
5.4 Mi. West of LA 328, Lafayette, LA
Built 2003 Load: 39.9 t ADT: 2,969
LA7281
GoodOver: CREEK
0.65 MI EAST OF LA 176, Lafayette, LA
Built 1970 Load: 39.9 t ADT: 10,589
ALARIO BRIDGE RD
GoodOver: DRAIN CANAL
0.3 MILE SW OF LA 3235, Lafourche, LA
Built 2011 Load: 39.9 t ADT: 530
LA3185
GoodOver: BAYOU LAFOURCHE
0.01M WEST OF LA 308, Lafourche, LA
Built 1991 Load: 39.9 t ADT: 12,957
BREITHAUPT CUTOFF
GoodOver: RHINEHART CREEK
1.1 MI NE OF US 84, LaSalle, LA
Built 2023 Load: 39.9 t ADT: 229
US0084
GoodOver: OLD RIVER
1.1 MI EAST OF LA 8, LaSalle, LA
Built 2000 Load: 39.9 t ADT: 2,479
Scivicque Rd
GoodOver: GRAYS CREEK
7.5 MI SE OF LA 3002 EXIT, Livingston, LA
Built 1985 Load: 39.9 t ADT: 250
Richardson Rd
GoodOver: BREED CREEK BRIDGE
.7 SO OF LA 42, Livingston, LA
Built 1997 Load: 39.9 t ADT: 150
Varnado Rd
GoodOver: HORNSY CREEK
4.0 MI NW OF I-12 SATSUMA, Livingston, LA
Built 1985 Load: 39.9 t ADT: 300
Old C.C. Rd
GoodOver: BLOOD RIVER BRIDGE
0.8 SO LA 1064 ON LA 43, Livingston, LA
Built 1997 Load: 39.9 t ADT: 200
LA0120
GoodOver: OLD RIVER
.4 MI. E OF INT I-49, Natchitoches, LA
Built 1985 Load: 39.9 t ADT: 665
LA0487
GoodOver: HASKINS CREEK
2.2 MI. N OF LA120, Natchitoches, LA
Built 1989 Load: 39.9 t ADT: 968
LA0478
GoodOver: BAYOU CHORI
3.49 MI. WEST OF LA 117, Natchitoches, LA
Built 1996 Load: 39.9 t ADT: 60
LA0478
GoodOver: BAYOU DEMUSE
2.2 MI. WEST OF LA 117, Natchitoches, LA
Built 1996 Load: 39.9 t ADT: 60
LA0118
GoodOver: ROCKY BRANCH
5.59MI EAST OF LA 117, Natchitoches, LA
Built 1998 Load: 39.9 t ADT: 164
LA0480
GoodOver: BAYOU BOURBEAUX
3.9 MI. E OFINT US71, Natchitoches, LA
Built 1992 Load: 39.9 t ADT: 684
US0090
GoodOver: LONDON AVE CANAL
0.5 MILES SOUTH OF I-610, Orleans, LA
Built 1960 Load: 39.9 t ADT: 49,920
US0090
GoodOver: CITY STS., RR
0.5 MI S OF I-10, Orleans, LA
Built 1994 Load: 39.9 t ADT: 7,620
I0010
GoodOver: I-10 EAST & WEST
1.7 MI EAST OF LA 39, Orleans, LA
Built 1968 Load: 39.9 t ADT: 7,620
I0010
GoodOver: CROWDER RD.
2.2 MI EAST OF US 90, Orleans, LA
Built 1973 Load: 39.9 t ADT: 74
MORRISON BLVD
GoodOver: JAHNCKE CANAL
0.2M EAST OF BULLARD RD, Orleans, LA
Built 1993 Load: 39.9 t ADT: 1,000
Paul Rd
GoodOver: SALINE BAYOU
2.5 MI. EAST OF LA 1206, Rapides, LA
Built 2008 Load: 39.9 t ADT: 350
US0165
GoodOver: LITTLE BAYOU CLEAR
0.66 MI. NORTH OF LA 3265, Rapides, LA
Built 1994 Load: 39.9 t ADT: 6,729
US0165
GoodOver: ROCKY BAYOU
3.37 MI. NORTH OF LA 3265, Rapides, LA
Built 1994 Load: 39.9 t ADT: 6,729
US0165
GoodOver: WILLOW BAYOU
5.57 MI. NORTH OF LA 3265, Rapides, LA
Built 1994 Load: 39.9 t ADT: 6,729
LA0461
GoodOver: GOODMAN BRANCH
3.7 MI. SE OF LA 121, Rapides, LA
Built 1992 Load: 39.9 t ADT: 830
LA0461
GoodOver: MILL CREEK
0.82 MI. SE OF LA 121, Rapides, LA
Built 1992 Load: 39.9 t ADT: 830
LA0461
GoodOver: HINESTON BRANCH
0.41 MI. SE OF LA 121, Rapides, LA
Built 1992 Load: 39.9 t ADT: 830
I0049
GoodOver: DIVERSION CANAL
1.4 M N INT I-49 7 US 167, Rapides, LA
Built 1989 Load: 39.9 t ADT: 20,572
I0049
GoodOver: DIVERSION CANAL
1.4M N INT I-49 & US 167, Rapides, LA
Built 1989 Load: 39.9 t ADT: 11,969
I0049
GoodOver: HYNSON BAYOU
2.23 MI. NORTH OF LA 3250, Rapides, LA
Built 1990 Load: 39.9 t ADT: 53,224
I0049
GoodOver: HYNSON BAYOU
2.23 MI. NORTH OF LA 3250, Rapides, LA
Built 1990 Load: 39.9 t ADT: 20,561
I0049
GoodOver: ROAD, RR, LAKE, CONVEYOR
3.23 MI. NORTH OF LA 1200, Rapides, LA
Built 1982 Load: 39.9 t ADT: 25,477
I0049
GoodOver: CARNAHAN CREEK
3.45 MI NORTH LA 8, Rapides, LA
Built 1987 Load: 39.9 t ADT: 14,042
I0049
GoodOver: CARNAHAN CREEK
3.45 MI NORTH LA 8, Rapides, LA
Built 1987 Load: 39.9 t ADT: 11,969
LA0462
GoodOver: CHERRY WINCHE CREEK
4.07 MI. EAST OF LA 112, Rapides, LA
Built 1997 Load: 39.9 t ADT: 77
Showing 9,851-9,900 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 |