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
LA0082
FairOver: BANKER CANAL
0.1 MI N. OF LA 690, Vermilion, LA
Built 2002 Load: 20.9 t ADT: 2,899
LA0082
FairOver: WARREN CANAL
10.48 MI N. OF LA 3147, Vermilion, LA
Built 1952 Load: 20.9 t ADT: 2,899
LA0335
FairOver: COULEE KENNY
1.84 MI W. OF LA 694, Vermilion, LA
Built 1953 Load: 20.9 t ADT: 2,516
N. Gin Rd
FairOver: LAPORTS COULEE
0.1 Mi S of LA 14, Vermilion, LA
Built 1965 Load: 20.9 t ADT: 397
LA0436
FairOver: BURCHS CREEK
LA0436, Washington, LA
Built 1957 Load: 20.9 t ADT: 2,434
LA0436
FairOver: LAWRENCE CREEK
LA0436, Washington, LA
Built 1957 Load: 20.9 t ADT: 1,148
LA0436
FairOver: MILLER CREEK
1.8 M W OF LA 62, Washington, LA
Built 1957 Load: 20.9 t ADT: 1,148
LA0436
FairOver: THOMAS BRANCH
LA0436, Washington, LA
Built 1957 Load: 20.9 t ADT: 1,148
LA0424
FairOver: DRAIN
1.2 M N OF LA 438, Washington, LA
Built 1969 Load: 20.9 t ADT: 1,873
US0080
FairOver: BOONE CREEK
1.9 MI WEST OF US371, Webster, LA
Built 1956 Load: 20.9 t ADT: 4,052
LA0160
FairOver: CANEY CREEK
1.7 MI EAST OF LA 3008, Webster, LA
Built 1957 Load: 20.9 t ADT: 502
Bistineau Terrace
FairOver: TRIB TO TAD POLE LAKE
0.2 Mi. N of Hanson Dr., Webster, LA
Built 1979 Load: 20.9 t ADT: 86
LA0134
FairOver: LITTLE COLEWA BAYOU
4.7 MI EAST OF LA 585, West Carroll, LA
Built 1954 Load: 20.9 t ADT: 692
LA0134
FairOver: LITTLE CREEK
2.1 MI WEST OF LA 17, West Carroll, LA
Built 1954 Load: 20.9 t ADT: 759
LA0501
FairOver: KYIAIES CREEK
.47 MI SOUTH OF LA 156, Winn, LA
Built 1975 Load: 20.9 t ADT: 1,026
LIVE OAK ST
FairOver: MILL CREEK
0.3 MI SOUTTH OF LA 1156, Allen, LA
Built 2007 Load: 21.1 t ADT: 1,300
LA0074
FairOver: GRAND GOUDINE
1.4 M W of US 61&LA 47, Ascension, LA
Built 1955 Load: 21.1 t ADT: 13,875
Vardaman Rd
FairOver: CYPRESS BAYOU TRIB
0.2M W of K'ville Keatchi, Caddo, LA
Built 1991 Load: 21.1 t ADT: 58
Keith Rd
FairOver: Trib to Buchanan B
50 FT. N K'ville-S'ridge, Caddo, LA
Built 1982 Load: 21.1 t ADT: 59
Blanchard Latex Rd
FairOver: SHETTLEWORTH BAYOU TRIB
0.6M EAST OF LA 169, Caddo, LA
Built 1991 Load: 21.1 t ADT: 39
Old Moorings-Latex
FairOver: TETE BAYOU
0.4 MI SW OF LA 169, Caddo, LA
Built 1996 Load: 21.1 t ADT: 57
MONTEREY SCHOOL RD
FairOver: JEEMS BAYOU TRIB
1.0 M WEST OF LA 1, Caddo, LA
Built 1991 Load: 21.1 t ADT: 59
Standard Oil Rd
FairOver: TYSON BRANCH
2.0 M EAST OF LA 1, Caddo, LA
Built 1990 Load: 21.1 t ADT: 40
US0190
FairOver: JONES CREEK
US0190, East Baton Rouge, LA
Built 1961 Load: 21.1 t ADT: 17,263
Barringer Foreman
FairOver: DIVERSION CANAL
1.0 MI N JCT I-10 LA 42, East Baton Rouge, LA
Built 1996 Load: 21.1 t ADT: 5,322
BULLRUN RD
FairOver: LA 580 CANAL
N. HWY 580 - 3 MI E, East Carroll, LA
Built 1999 Load: 21.1 t ADT: 333
FDR 155
FairOver: SADDLE BAYOU OVFLOW
NO DATA ENTERED, Grant, LA
Built 1962 Load: 21.1 t ADT: 15
LA0099
FairOver: DRAIN
5.1 MI N OF I-10, Jefferson Davis, LA
Built 1931 Load: 21.1 t ADT: 1,405
EIGHTH STREET
FairOver: BAYOU
0.6 MI E of LA 26, Jefferson Davis, LA
Built 1970 Load: 21.1 t ADT: 160
WELSH CANAL ROAD
FairOver: WELSH CANAL
0.4 MI E of LA 99, Jefferson Davis, LA
Built 1974 Load: 21.1 t ADT: 60
E. Simcoe St.
FairOver: COULEE
0.18 Mi E of LA 182, Lafayette, LA
Built 1970 Load: 21.1 t ADT: 2,760
LA0308-S
FairOver: BAYOU LAFOURCHE
.01 MI EAST OF LA 1, Lafourche, LA
Built 1972 Load: 21.1 t ADT: 9,051
LA0117
FairOver: BAYOU SANTA BARB
1.79 MI. SOUTH OF LA 478, Natchitoches, LA
Built 1955 Load: 21.1 t ADT: 1,513
LINCOLN HILLS DR
FairOver: CANEY CREEK
0.31 MI. E. INT. HWY, Ouachita, LA
Built 1979 Load: 21.1 t ADT: 150
LA0134
FairOver: COLEWA CREEK
1.3 MI EAST OF LA 183, Richland, LA
Built 1953 Load: 21.1 t ADT: 733
FORTENBERRY RD
FairOver: CYPRESS CREEK
LOG MI 2.61 FR 443 TO ODE, Richland, LA
Built 1987 Load: 21.1 t ADT: 22
LA0441
FairOver: HUTCHINSON CREEK
LA0441, St. Helena, LA
Built 1959 Load: 21.1 t ADT: 420
US0190
FairOver: BAYOU TECHE
0.3 MI W of LA 103, St. Landry, LA
Built 1964 Load: 21.1 t ADT: 8,559
Howard Venable Rd.
FairOver: Bayou Wikoff Branch
1.0 Mi. S. of La 754, St. Landry, LA
Built 1975 Load: 21.1 t ADT: 250
LA0031
FairOver: DRAINAGE CANAL
1.79 MI N OF LA 1.79, St. Martin, LA
Built 1957 Load: 21.1 t ADT: 3,996
Chatsworth Rd.
FairOver: FRANKLIN CANAL
1.2 Mi S of LA 3211, St. Mary, LA
Built 1985 Load: 21.1 t ADT: 1,950
SHADY VIEW LANE
FairOver: DRAIN
0.60 MI W OF LA.21, St. Tammany, LA
Built 2005 Load: 21.1 t ADT: 250
LA1051
FairOver: BUTTON CREEK
LA1051, Tangipahoa, LA
Built 1975 Load: 21.1 t ADT: 1,870
S. Range Rd
FairOver: PONCHATOULA CREEK
2 MI N OF JCT SR 22, Tangipahoa, LA
Built 1956 Load: 21.1 t ADT: 6,250
Phoenix square
FairOver: CREEK
5TH AV,HAMMOND PHOENIX SQ, Tangipahoa, LA
Built 1978 Load: 21.1 t ADT: 3,306
LA0055
FairOver: MADISON CANAL
8.8 MI SOUTH OF LA 58, Terrebonne, LA
Built 1970 Load: 21.1 t ADT: 276
LA0803-1
FairOver: LITTLE CROOKED CR
.19 MI NORTH OF US 371, Webster, LA
Built 1949 Load: 21.1 t ADT: 4,087
LA0531
FairOver: GEE CREEK
2.74 MI NORTH OF LA 792, Webster, LA
Built 1972 Load: 21.1 t ADT: 1,230
Neil Wagoner
FairOver: CREOSOTE BRANCH
0.48 MI. EAST OF LA 34, Winn, LA
Built 1985 Load: 21.1 t ADT: 400
LA0095
FairOver: BAYOU MALLET
0.1 MI NORTH OF LA 358, Acadia, LA
Built 1958 Load: 21.4 t ADT: 1,370
Showing 2,151-2,200 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 |