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
LA0017
FairOver: CREEK
2.4 MI NORTH OF LA 2, West Carroll, LA
Built 1956 Load: 18.1 t ADT: 3,570
LA0156
FairOver: HURRICANE CREEK
1.57 MI. EAST OF LA 1233, Winn, LA
Built 1952 Load: 18.1 t ADT: 525
LA1234
FairOver: DRAIN
1.22 MI NORTH OF LA 126, Winn, LA
Built 1967 Load: 18.1 t ADT: 94
LA1120
FairOver: ANDRE COULEE
2.9 Mi. N of LA 100, Acadia, LA
Built 1974 Load: 18.5 t ADT: 801
NIELSON RD
FairOver: KINDER DITCH
1.2 MI EAST OF US 165, Allen, LA
Built 1999 Load: 18.5 t ADT: 561
BEL FIRE TOWER RD
FairOver: CLEAR CREEK
1.0 MI N OF US 190, Allen, LA
Built 1992 Load: 18.5 t ADT: 420
DUPLECHAIN RD
FairOver: MULBERRY CREEK
0.4 MI E OF C-CASTOR RD., Allen, LA
Built 1997 Load: 18.5 t ADT: 105
MUSSEL WHITE RD
FairOver: OBERLIN DITCH
0.2 MI N of LA026, Allen, LA
Built 1999 Load: 18.5 t ADT: 106
PALESTINE RD
FairOver: TEN MILE CREEK
4.90MI EAST OF LA 377, Allen, LA
Built 1985 Load: 18.5 t ADT: 190
BILL WINN RD
FairOver: WEST FORK CANEY CREEK
0.9 MI W OF LA372, Allen, LA
Built 1999 Load: 18.5 t ADT: 100
SOAPSTONE RD
FairOver: CANEY BRANCH
1.6 MI N of LA 112, Allen, LA
Built 1999 Load: 18.5 t ADT: 306
Beco Rd
FairOver: Babin Canal
0.44 Mi. N. of LA 935, Ascension, LA
Built 1979 Load: 18.5 t ADT: 1,336
LA0029
FairOver: TURNER BAYOU
0.82 MI. NORTH OF LA 1176, Avoyelles, LA
Built 1952 Load: 18.5 t ADT: 1,799
Sim-Bordelon Ctoff
FairOver: BAYOU DES GLAISES
APPROX. 1 MI. N. OF LA 1, Avoyelles, LA
Built 1992 Load: 18.5 t ADT: 250
Bordebis Rd
FairOver: BAYOU DULAC
0.01 MI. EAST OF LA 1185, Avoyelles, LA
Built 1994 Load: 18.5 t ADT: 100
LA0009
FairOver: EDWARDS MILL CR
4.7 MI NORTH OF LA 4, Bienville, LA
Built 1966 Load: 18.5 t ADT: 342
I0010
FairOver: DRAIN
2.2 MI W of LA 383, Calcasieu, LA
Built 1964 Load: 18.5 t ADT: 136
FRUGE RD
FairOver: JACQUES COULEE
1.7 MI. S. OF LA 14, Calcasieu, LA
Built 1986 Load: 18.5 t ADT: 334
GUM ISLAND RD
FairOver: WING GULLEY
5.2 MI EAST OF LA 108, Calcasieu, LA
Built 1986 Load: 18.5 t ADT: 805
MCCOWN RD
FairOver: ENGLISH BAYOU EAST FORK
1.5 MI SOUTH OF US 90, Calcasieu, LA
Built 1988 Load: 18.5 t ADT: 923
LINE RD
FairOver: GUM SLOUGH
0.3 MI WEST OF LA 109, Calcasieu, LA
Built 1986 Load: 18.5 t ADT: 229
WILLIAMS ST
FairOver: VERDING BAYOU
0.1 MI S of JOHN STINE RD, Calcasieu, LA
Built 1975 Load: 18.5 t ADT: 252
LA0959
FairOver: SANDY CREEK REL
0.3 M NW of LA 959&LA 409, East Feliciana, LA
Built 1960 Load: 18.5 t ADT: 1,679
Gracie St
FairOver: LEVEE BORROW PIT
.01 Mi. E of B. Sorrel Rd, Iberville, LA
Built 1995 Load: 18.5 t ADT: 100
BREAUX AVE
FairOver: GARDERE CANAL
0.3 MI.E OF PETERS R, Jefferson, LA
Built 1960 Load: 18.5 t ADT: 750
FARM SUPPLY RD.
FairOver: CHENE BAYOU
0.08 MI N of LA 1126, Jefferson Davis, LA
Built 1975 Load: 18.5 t ADT: 80
AUGUSTINE RD.
FairOver: GULLY
0.4 MI N of LA 101, Jefferson Davis, LA
Built 1970 Load: 18.5 t ADT: 70
ARDOIN ROAD
FairOver: BAYOU GRAND MARAIS
1.4 MI W of INT LA 26, Jefferson Davis, LA
Built 1965 Load: 18.5 t ADT: 50
Hunt Rd
FairOver: DIVERSION CANAL
8.01 LOG MI EAST OF LA 28, LaSalle, LA
Built 1966 Load: 18.5 t
SHARKEY RD #2
FairOver: TENSAS RIVER
13 MI S.W. TALLULAH, Madison, LA
Built 1985 Load: 18.5 t ADT: 109
WHITE ARKANSAS RD
FairOver: SNAKE CREEK
3.4 MI. WEST INT. 382, Morehouse, LA
Built 1986 Load: 18.5 t ADT: 70
FH 59
FairOver: STEEP HILL CREEK
NO DATA ENTERED, Natchitoches, LA
Built 1967 Load: 18.5 t ADT: 80
BURKE RD
FairOver: BIG CREEK
0.6 MI N of LA 132, Richland, LA
Built 1991 Load: 18.5 t ADT: 340
US0167
FairOver: B GRAND LOUIS
1.2 MI N. OF LA 103, St. Landry, LA
Built 1955 Load: 18.5 t ADT: 5,978
Wisdom Rd
FairOver: BAYOU PLAQUEMINE BRULY
0.1 Mi E of Grapevine Rd, St. Landry, LA
Built 1987 Load: 18.5 t ADT: 250
Saquette Rd.
FairOver: BAYOU SAQUETTE
0.96 Mi E of LA 103, St. Landry, LA
Built 1975 Load: 18.5 t ADT: 80
Raiders Rd
FairOver: BAYOU GRAND LOUIS
0.2 Mi N. of Creek Rd, St. Landry, LA
Built 1985 Load: 18.5 t ADT: 150
George Buller Rd
FairOver: BAYOU BOEUF
0.31 Mi SW of LA 182, St. Landry, LA
Built 1975 Load: 18.5 t ADT: 110
Roman Robin Rd
FairOver: NICOLE COULEE
0.7 Mi. S of LA 352, St. Martin, LA
Built 1955 Load: 18.5 t ADT: 263
W. Hall Ave
FairOver: CREEK
0.6MI.E.OF CARROL RD, St. Tammany, LA
Built 1970 Load: 18.5 t ADT: 4,504
Berry Todd Rd
FairOver: BRIDGE OVER CREEK
0.90 MI E. OF LA 434, St. Tammany, LA
Built 1984 Load: 18.5 t ADT: 80
Krentel Rd
FairOver: BRIDGE OVER LACOMBE BAYO
0.7 MI N. OF LA 434, St. Tammany, LA
Built 1984 Load: 18.5 t ADT: 100
Lavinghouse Rd
FairOver: SIMMONS CREEK
0.72M SOUTH OF LA 40, St. Tammany, LA
Built 1992 Load: 18.5 t ADT: 40
Old Covington Hwy.
FairOver: SELSERS CREEK
1.3 M.N/E JCT.LA 3158&I12, Tangipahoa, LA
Built 1958 Load: 18.5 t ADT: 7,316
LA0055
FairOver: LAPEYROUSE CANAL
8.0 MI SOUTH OF LA 58, Terrebonne, LA
Built 1959 Load: 18.5 t ADT: 276
KLONDYKE RD
FairOver: LACACHE BAYOU
0.5 MI NE OF LA 56, Terrebonne, LA
Built 1967 Load: 18.5 t ADT: 5,080
SPEARSVILLE RD
FairOver: TEN MILE CREEK
2.5 MI. NW INT. 144, Union, LA
Built 1983 Load: 18.5 t ADT: 210
LA0082
FairOver: DRAINAGE CANAL
6.77 MI N. OF LA 3147, Vermilion, LA
Built 1952 Load: 18.5 t ADT: 2,899
DALLAS STREET
FairOver: WHISKEY CHITTO CREEK
VE 844 412, Vernon, LA
Built 1978 Load: 18.5 t ADT: 20
LA0010
FairOver: JASPER CREEK
0.16 Mi E of US 61, West Feliciana, LA
Built 1948 Load: 18.5 t ADT: 2,761
Showing 1,601-1,650 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 |