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
John Savoy Rd
FairOver: NEW RIVER
0.2 MI N OF LA 22, Ascension, LA
Built 1960 Load: 15.4 t ADT: 40
SPELL RD
FairOver: GUM SLOUGH
0.3 MI WEST OF LA 109, Calcasieu, LA
Built 1994 Load: 15.4 t ADT: 20
LA0004
FairOver: SUGAR CREEK
1.4 MI EAST OF LA 557, Caldwell, LA
Built 1954 Load: 15.4 t ADT: 311
LA0384
FairOver: ICWW-SWEET/GRAND LAKE
0.9 MI. W OF INT LA 385, Cameron, LA
Built 1964 Load: 15.4 t ADT: 1,601
LA1172
FairOver: BAYOU
3.0 MI EAST OF LA 13, Evangeline, LA
Built 1966 Load: 15.4 t ADT: 704
CHIICOT STATE PARK
FairOver: CREEK
0.9 Mi E of La 3042, Evangeline, LA
Built 1983 Load: 15.4 t ADT: 40
French Turn Rd
FairOver: DEEP BAYOU
2.466 mi. SE of LA 577, Franklin, LA
Built 1968 Load: 15.4 t ADT: 92
LA0542
FairOver: CREEK
1.15 MI EAST OF US 167, Jackson, LA
Built 1959 Load: 15.4 t ADT: 485
BEAUFORT STREET
FairOver: DRAINAGE CANAL
0.52 MI E OF LA 99, Jefferson Davis, LA
Built 2019 Load: 15.4 t ADT: 200
PEA RIDGE RD
FairOver: SIXTEEN BRANCH CREEK
3 MI W CEDARTON, Lincoln, LA
Built 1978 Load: 15.4 t ADT: 290
LA0444
FairOver: BAYOU BARBARY
3.7 M E OF LA 63, Livingston, LA
Built 1955 Load: 15.4 t ADT: 3,782
LA3048
FairOver: BEE BAYOU
2.0 MI NORTH OF LA 584, Richland, LA
Built 1960 Load: 15.4 t ADT: 1,594
LA0038
FairOver: JOINERS CREEK
3.2 M W OF LA 43, St. Helena, LA
Built 1954 Load: 15.4 t ADT: 933
LA0321
FairOver: CREEK
0.71 MI S OF LA 347, St. Martin, LA
Built 1966 Load: 15.4 t ADT: 1,732
LA1063
FairOver: CREEK
0.9 M W OF US 51, Tangipahoa, LA
Built 1949 Load: 15.4 t ADT: 1,130
LA1063
FairOver: CANAL
0.8 M W OF US 51, Tangipahoa, LA
Built 1956 Load: 15.4 t ADT: 1,130
LA0569
FairOver: BAYOU L-ARGENT
1.21 MI SOUTH OF LA 568, Tensas, LA
Built 1954 Load: 15.4 t ADT: 105
LA0331
FairOver: CREEK
1.41 MI S. OF LA 14, Vermilion, LA
Built 1951 Load: 15.4 t ADT: 1,638
CORPRAL MARCEAUX R
FairOver: ZIGLER CANAL
1.2 Mi S of Liberty Farm, Vermilion, LA
Built 1972 Load: 15.4 t ADT: 100
Alvie Rd
FairOver: COULEE
0.1 Mi. S of LA 714, Vermilion, LA
Built 1989 Load: 15.4 t ADT: 90
BALLTOWN ROAD
FairOver: CREEK
1.2 M E OF LA 21, Washington, LA
Built 1959 Load: 15.4 t ADT: 1,692
Old Spanish Trail
FairOver: Coulee
0.5 Mi. E. of La 91, Acadia, LA
Built 1975 Load: 15.6 t ADT: 96
LA1147
FairOver: SPRING CREEK BR
9.2 MI. N OF INT LA113, Beauregard, LA
Built 1967 Load: 15.6 t ADT: 708
US0084
FairOver: BAYOU GRAND CANE
1.6 MI EAST OF LA 191, De Soto, LA
Built 1951 Load: 15.6 t ADT: 4,251
LA0037
FairOver: SANDY CREEK
LA0037, East Baton Rouge, LA
Built 1957 Load: 15.6 t ADT: 3,548
LA0865
FairOver: TURKEY CREEK
.2 MI NORTH OF LA 4, Franklin, LA
Built 1971 Load: 15.6 t ADT: 892
LA0404
FairOver: LEVY CANAL
0.52 M SW of LA 404&LA 69, Iberville, LA
Built 1962 Load: 15.6 t ADT: 551
POTTER RD.
FairOver: THORNWELL DRAINAGE CANAL
0.6 MI N of LA 14, Jefferson Davis, LA
Built 1976 Load: 15.6 t ADT: 160
W. Jefferson St.
FairOver: BAYOU TESSON
0.3 Mi W. of La 182, St. Landry, LA
Built 1965 Load: 15.6 t ADT: 700
W. South St
FairOver: Bayou Tesson
.76 Mi. East of LA 357, St. Landry, LA
Built 1936 Load: 15.6 t ADT: 800
Horecky Rd
FairOver: BAYOU WAUKSHA
1.8M SW of Lee Richard LP, St. Landry, LA
Built 1986 Load: 15.6 t ADT: 240
Eden Isle Subd.
FairOver: BR. OVER EDEN ISLES CANA
2.4 MI S JCT US 11 & 433, St. Tammany, LA
Built 1974 Load: 15.6 t ADT: 5,979
Lee Rd
FairOver: HOUSE CREEK
0.2 M NORTH OF LA 1129, St. Tammany, LA
Built 1990 Load: 15.6 t ADT: 814
US0165
FairOver: DRAIN
3.2 MI. N OF INT LA1153, Allen, LA
Built 1931 Load: 15.9 t ADT: 11,113
N Robert Wilson Rd
FairOver: SMITH BAYOU
2.9 MI SE DUTCHTOWN, Ascension, LA
Built 1973 Load: 15.9 t ADT: 120
LA0507
FairOver: DRAIN
.49 MI WEST OF LA 153, Bienville, LA
Built 1969 Load: 15.9 t ADT: 592
Capps City Rd
FairOver: E.FORK OF STATELINE CREE
0.5 MI. E. OF LA 1, Caddo, LA
Built 1983 Load: 15.9 t ADT: 96
LA0004
FairOver: SQUIRREL CREEK
1.0 MI WEST OF LA 557, Caldwell, LA
Built 1954 Load: 15.9 t ADT: 338
LA3015
FairOver: BUSHNECK BAYOU
1.0 MI WEST OF LA 5, De Soto, LA
Built 1979 Load: 15.9 t ADT: 462
Gall Rd.
FairOver: Coulee
1.4 Mi. S. of La 83, Iberia, LA
Built 1974 Load: 15.9 t ADT: 21
Centerville Rd
FairOver: DRAINAGE BAYOU
0.5 Mi N of LA 76, Iberville, LA
Built 1970 Load: 15.9 t ADT: 110
ADAMS ROAD
FairOver: LITTLE MARSH BAYOU
1.5 MI E of TOPSY BEL RD, Jefferson Davis, LA
Built 2015 Load: 15.9 t ADT: 100
OLD LA182 XOVER
FairOver: LAFOURCHE BAYOU
0.01 MI N. OF LA 1, Lafourche, LA
Built 1968 Load: 15.9 t ADT: 4,400
WAFER RD
FairOver: SPRING CREEK
0.25 MILES NORTH OF LA 54, Lincoln, LA
Built 2015 Load: 15.9 t ADT: 75
Gene Hughes Rd
FairOver: WEST HOG BRANCH
9.5 MI NE OF RT 63 E, Livingston, LA
Built 1970 Load: 15.9 t ADT: 100
NORTHEAST DR
FairOver: DESIARD BAYOU
NORTHEAST LA UNIVERS, Ouachita, LA
Built 1966 Load: 15.9 t ADT: 500
LA3048
FairOver: BURNS BAYOU
2.4 MI NORTH OF LA 584, Richland, LA
Built 1960 Load: 15.9 t ADT: 1,594
LA0010
FairOver: BAYOU COURTABLEAU
0.02 MI EAST OF LA 103, St. Landry, LA
Built 1936 Load: 15.9 t ADT: 1,533
Verdunville Rd.
FairOver: Verdunville Canal
2.2 Mi. E of LA 87, St. Mary, LA
Built 1967 Load: 15.9 t ADT: 200
LA0450
FairOver: DRAIN
1.1 M NW OF LA 25, St. Tammany, LA
Built 1958 Load: 15.9 t ADT: 1,822
Showing 1,251-1,300 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 |