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
US0090/FRONTAGE RD
GoodOver: DRAIN
0.54 Mi. West of LA 688, Iberia, LA
Built 2017 Load: 26.6 t ADT: 1,112
LA0654
GoodOver: BAYOU LAFOURCHE
.01 MI EAST OF LA 1, Lafourche, LA
Built 2003 Load: 26.6 t ADT: 1,791
Elm St
GoodOver: WEST PRONG HEMPHILL CREE
160' East of US 84, LaSalle, LA
Built 1998 Load: 26.6 t ADT: 28
CASINO BLVD
GoodOver: CITY STREET
1.1 MI E OF PRESS DR, Orleans, LA
Built 1998 Load: 26.6 t ADT: 48,620
SMALLING RD
GoodOver: CREEK
1.4 MI W of LA 183, Richland, LA
Built 2011 Load: 26.6 t ADT: 200
Esterbrook Rd
GoodOver: CREEK
0.80 M S of LA 22, Tangipahoa, LA
Built 1984 Load: 26.6 t ADT: 767
S. Mooney ave.
GoodOver: CREEK
SOUTH MOONEY AVE, HAMMOND, Tangipahoa, LA
Built 1984 Load: 26.6 t ADT: 693
LOCK ACCESS ROAD
GoodOver: BAYOU CHENE
END OF LA 333, Vermilion, LA
Built 1982 Load: 26.6 t ADT: 100
Young's Crossing
GoodOver: BAYOU BOEUF
0.01 MI. EAST OF LA 1176, Avoyelles, LA
Built 1992 Load: 26.9 t ADT: 100
Thing Dufour Rd
GoodOver: BAYOU DES GLAISES
0.15 MI. EAST OF LA 451, Avoyelles, LA
Built 1998 Load: 26.9 t ADT: 220
Springridge-Texas
GoodOver: Mill Creek
1.3 MI.EAST OF TEXAS, Caddo, LA
Built 1976 Load: 26.9 t ADT: 5,102
BAIRD ROAD
GoodOver: SUMMER GROVE DITCH
0.9 MI. EAST OF US 171, Caddo, LA
Built 2003 Load: 26.9 t ADT: 4,720
WALDEN FERRY RD
GoodOver: CROSS BAYOU
.86 MI. WEST OF US 80, Caddo, LA
Built 1997 Load: 26.9 t ADT: 57
Clyde Fant Parkway
GoodOver: Clyde Fant Pkwy Ramps
0.4 Mi. S of Jack Wells B, Caddo, LA
Built 1998 Load: 26.9 t ADT: 11,190
United Gas Rd
GoodOver: TRIBUTARY TO BLACK BAYOU
0.8 MI SOUTH OF LA 168, Caddo, LA
Built 1995 Load: 26.9 t ADT: 38
Hooterville Rd
GoodOver: BANISTER CREEK
0.1 M W of LA 506, Caldwell, LA
Built 1998 Load: 26.9 t ADT: 70
Sweetwater Road
GoodOver: SWEETWATER CREEK
0.4M NE of LA557, Caldwell, LA
Built 1996 Load: 26.9 t ADT: 90
US0171
GoodOver: ELAM BRANCH
1.9 MI. N. OF US 84, De Soto, LA
Built 2009 Load: 26.9 t ADT: 6,525
Knotch Rd
GoodOver: BLUFF CREEK
2.7 M NW of LA 63&LA 37, East Feliciana, LA
Built 1984 Load: 26.9 t ADT: 12
Destrehan Ave
GoodOver: CANAL
1.0 MI E OF LA 3134, Jefferson, LA
Built 2005 Load: 26.9 t
Indian Bluff Rd
GoodOver: CREEK
LOG MI. 1.15 FR 70 TO ODE, LaSalle, LA
Built 1998 Load: 26.9 t ADT: 70
Allen Marthaville
GoodOver: WATSON BAYOU
1 M. NE OF LA 120, Natchitoches, LA
Built 1999 Load: 26.9 t ADT: 82
Mammy Trail Rd
GoodOver: CHEE-CHEE CREEK
2.31 MI. NORTH OF LA 1226, Natchitoches, LA
Built 2000 Load: 26.9 t ADT: 255
US0165
GoodOver: SPRING CREEK
2.15 MI. NORTH OF LA 113, Rapides, LA
Built 2009 Load: 26.9 t ADT: 8,811
US0165
GoodOver: BARBER CREEK
2.64 M S OF S JCT LA 112, Rapides, LA
Built 2009 Load: 26.9 t ADT: 8,811
US0165
GoodOver: BARBER CREEK RELIEF
2.78 M S OF S JCT. LA 112, Rapides, LA
Built 2009 Load: 26.9 t ADT: 8,811
US0165
GoodOver: BARBER CREEK RELIEF
2.78 M S OF S JCT. LA 112, Rapides, LA
Built 2009 Load: 26.9 t ADT: 11,113
US0165
GoodOver: BARBER CREEK
2.64 M S OF S JCT. LA 112, Rapides, LA
Built 2009 Load: 26.9 t ADT: 11,113
LA0488
GoodOver: TURKEY BAYOU
3.32 M WEST OF LA 1208-3, Rapides, LA
Built 2006 Load: 26.9 t ADT: 2,343
LA0488
GoodOver: DIVERSION CANAL
2.12 M WEST OF LA 1208-3, Rapides, LA
Built 2006 Load: 26.9 t ADT: 2,343
BRIMBERRY RD
GoodOver: CREEK
1.5 MI W OF LA 133, Richland, LA
Built 2016 Load: 26.9 t ADT: 60
US0090
GoodOver: B CROCODILE
1.0 MI EAST OF LA 306, St. Charles, LA
Built 1965 Load: 26.9 t ADT: 20,956
Wales Rd
GoodOver: SANDY RUN BRIDGE
0.45 M N OF LA 10, St. Helena, LA
Built 1989 Load: 26.9 t ADT: 60
Bayou Pacquet
GoodOver: BAYOU PAQUET
1.15M WEST OF LA 433, St. Tammany, LA
Built 1992 Load: 26.9 t ADT: 595
W. Murray Rd
GoodOver: ANDERSON CANAL
1.6M SW OF LA 22 EXIT, Tangipahoa, LA
Built 1992 Load: 26.9 t ADT: 577
General Ott Rd
GoodOver: YELLOW WATER RIVER
2.0M NW OF LA 51 EXIT, Tangipahoa, LA
Built 1993 Load: 26.9 t ADT: 1,491
B. Brown Rd
GoodOver: BIG CREEK BRIDGE
0.8E/1054&1058 BOB BROWN, Tangipahoa, LA
Built 1996 Load: 26.9 t ADT: 56
Lees Cr. Church Rd
GoodOver: LEE'S CREEK
0.4 M EAST OF LA 1075, Washington, LA
Built 1990 Load: 26.9 t ADT: 520
Mt. Pisgah Rd
GoodOver: SILVER CREEK
1.7 M SOUTH OF HWY 38, Washington, LA
Built 1990 Load: 26.9 t ADT: 675
Old Lake Rd
GoodOver: DEER LICK CREEK
.1 NORTH OF HWY 1055, Washington, LA
Built 1999 Load: 26.9 t ADT: 129
Cumnock Rd
GoodOver: HAY'S CREEK
1.4 MILES NORTH OF HWY 38, Washington, LA
Built 2000 Load: 26.9 t ADT: 334
Crains Cr. Rd
GoodOver: CRAINS CREEK
0.4 MI NORTH OF HWY 438, Washington, LA
Built 2000 Load: 26.9 t ADT: 480
US0079
GoodOver: DRAIN
1.93M EAST OF LA 159, Webster, LA
Built 1932 Load: 26.9 t ADT: 9,942
LA0029
GoodOver: BAYOU BOEUF
0.01 MI. NORTH OF LA 1175, Avoyelles, LA
Built 1962 Load: 27.2 t ADT: 2,144
Pleasant Hill Ceme
GoodOver: Cypress Bayou Trib
3.3 MILES EAST OF HWY 157, Bossier, LA
Built 2014 Load: 27.2 t ADT: 100
I0049
GoodOver: TRINITY BAYOU
0.2 M. N. OF LA 169, Caddo, LA
Built 2013 Load: 27.2 t ADT: 8,115
LINWOOD AVE
GoodOver: TRBY TO BRUSH BAYOU
0.2 MI. SO. OF LA 511, Caddo, LA
Built 1983 Load: 27.2 t ADT: 14,042
LA0127
GoodOver: FLAT CREEK BRANCH
8.4 MI NW OF LA 125, Caldwell, LA
Built 1962 Load: 27.2 t ADT: 314
LA0506
GoodOver: CREEK
1.3 MI WEST OF US 165, Caldwell, LA
Built 1984 Load: 27.2 t ADT: 306
LA0547
GoodOver: CREEK
2.43 MI W OF LA 126, Caldwell, LA
Built 1982 Load: 27.2 t ADT: 606
Showing 7,351-7,400 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 |