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
HOLLY SPRINGS ROAD
GoodOver: BIRDS CREEK
VE 926 368, Vernon, LA
Built 2008 Load: 97.2 t ADT: 120
ARTILLERY ROAD
GoodOver: WHISKEY CHITTO CREEK
VE 867 417, Vernon, LA
Built 2008 Load: 97.2 t ADT: 1,200
LA0409
PoorOver: LITTLE SANDY CREEK
1.6 Mi N of LA 64, East Baton Rouge, LA
Built 1955 ADT: 3,092
LA0580
PoorOver: JONES BAYOU
4.6 MI EAST OF LA 877, East Carroll, LA
Built 1958 ADT: 212
LA0016
PoorOver: DRAIN
2.5 M W OF LA 21, St. Tammany, LA
Built 1968 ADT: 1,388
Ebeneezer Tap Rd
PoorOver: JONES CREEK
0.65 Mi South of LA 500, LaSalle, LA
Built 1989 Load: 1.2 t ADT: 300
Stubblefield Rd
PoorOver: BAYOU ROUGE
APPROX. 1 M. S. OF LA 361, Avoyelles, LA
Built 1975 Load: 2.3 t ADT: 40
Central St
PoorOver: HURRICANE CREEK
0.5 MI S OF US 165, Caldwell, LA
Built 1960 Load: 2.3 t
LA0010-S
PoorOver: ST JOSEPH BRANCH
1 mile east of LA 43, St. Helena, LA
Built 1959 Load: 2.3 t ADT: 225
LA0134
PoorOver: JOES BAYOU
2.8 MI NE OF LA 577, East Carroll, LA
Built 1967 Load: 3.4 t ADT: 759
Mitch Rd
PoorOver: PETERS CREEK
1.1 MI. W OF HWY. 21, Washington, LA
Built 1970 Load: 3.4 t ADT: 1,420
MINERAL SPRINGS RD
PoorOver: CLARK CREEK
3 MI N CADEVILLE, Ouachita, LA
Built 1960 Load: 3.6 t ADT: 271
Aristide Rd
PoorOver: COULEE
0.20 Mi W of LA 331, Vermilion, LA
Built 1978 Load: 3.6 t ADT: 300
Clonel Kelone Rd
PoorOver: CHOCTAW BAYOU
APP. 0.2 M S BONNETTE RD., Avoyelles, LA
Built 1975 Load: 4.5 t ADT: 60
Georgetown Ceme Rd
PoorOver: KEY BRANCH
0.13 M. N. OF LA 500, Grant, LA
Built 1975 Load: 4.5 t ADT: 30
LA0004
PoorOver: CREEK
4.16 MI EAST OF LA 34, Jackson, LA
Built 1952 Load: 4.5 t ADT: 897
KEPPLER CR RD
PoorOver: SUGAR CREEK
2.3 MI. N. INT. 338, Jackson, LA
Built 1976 Load: 4.5 t ADT: 75
LA1024
PoorOver: CREEK
0.3 M E OF LA 1019, Livingston, LA
Built 1942 Load: 4.5 t ADT: 1,020
LA0577
PoorOver: SUTT BAYOU
1.8 MI SOUTH OF I-20, Madison, LA
Built 1958 Load: 4.5 t ADT: 184
SHANANDOAH DR
PoorOver: CANEY CREEK
.4 MI. E. HWY. 139, Ouachita, LA
Built 1976 Load: 4.5 t ADT: 50
LITTLE RD
PoorOver: CREEK
LOGMI 3.48 FR 1DE TO, Richland, LA
Built 1967 Load: 4.5 t ADT: 100
Legion St
PoorOver: LITTLE CROOKED CREEK
0.08M EAST OF LA 803-1, Webster, LA
Built 1990 Load: 4.5 t ADT: 1,250
Farrar Davis Rd
PoorOver: DRAINAGE CREEK
2.2 MI SW LA66&LA969 JCT, West Feliciana, LA
Built 2004 Load: 4.5 t ADT: 30
LA0124
PoorOver: CREEK
2.1 MI NORTH OF LA 3102, Catahoula, LA
Built 1960 Load: 5.4 t ADT: 410
HADLEY ST
PoorOver: Airport Canal
HADLEY ST EAST BRIDG, Ouachita, LA
Built 1965 Load: 5.4 t ADT: 400
McCullough Rd
PoorOver: DRAINAGE CANAL
1.7 Mi. E of LA 410, East Baton Rouge, LA
Built 1967 Load: 5.5 t ADT: 1,028
ARKADELPHIA RD
PoorOver: SIX MILE CREEK RELIEF
4.0 MI N OF LA 377, Allen, LA
Built 1970 Load: 5.6 t ADT: 260
LA0404
PoorOver: BAYOU TIGRIS
2.4 Mi W of La 993, Iberville, LA
Built 1955 Load: 5.6 t ADT: 551
Waggoner Tap Rd
PoorOver: Cohcran Creek
0.9 miles south of US 84E, LaSalle, LA
Built 1970 Load: 5.6 t ADT: 100
Doc Steed Rd
PoorOver: BRUSHY CREEK
0.2 MI S OF HWY 7, Webster, LA
Built 1970 Load: 5.6 t ADT: 123
Monterrey Blvd
PoorOver: JONES CREEK
1.5 MI S OF LA 37, East Baton Rouge, LA
Built 1960 Load: 5.7 t ADT: 5,437
Old Columbia Rd
PoorOver: LITTLE CREEK
3.4 MI. E OF HWY. 43, Washington, LA
Built 1950 Load: 5.7 t ADT: 533
Bobby Woods Rd
PoorOver: BIG CREEK
1.1 MI W. OF LA 132, Franklin, LA
Built 1976 Load: 6.4 t ADT: 115
Jefferson St
PoorOver: COBURN CREEK
0.4 MI.NORTH OF LA 10, Washington, LA
Built 1965 Load: 6.4 t ADT: 710
Ball Town Rd
PoorOver: ARD CREEK
.7 MI. S OF HWY. 438, Washington, LA
Built 1960 Load: 6.4 t ADT: 1,680
RUSSELL STREET
PoorOver: FARMERS L & C CO. CANAL
0.2 MI E of LA 14, Calcasieu, LA
Built 1970 Load: 6.5 t ADT: 450
Point ala Hache Fe
PoorOver: MISS. RIVER FERRY RAMP
0.01M WEST OF LA 39, Plaquemines, LA
Built 1960 Load: 6.5 t ADT: 50
Monroe Farbe Xing
PoorOver: BAYOU DES GLAISES
0.01 MI. EAST OF LA 451, Avoyelles, LA
Built 1977 Load: 6.8 t ADT: 150
Talmadge Crumholt
PoorOver: BLACKWATER BAYOU
0.2 Mi. N of LA 410, East Baton Rouge, LA
Built 1965 Load: 6.8 t ADT: 100
LA0004
PoorOver: CREEK
5.04 MI EAST OF LA 34, Jackson, LA
Built 1952 Load: 6.8 t ADT: 897
LA0010
PoorOver: TAWPAW BAYOU
2.40 Mi W of La 105, St. Landry, LA
Built 1958 Load: 6.8 t ADT: 708
LA0682
PoorOver: NORRIS CANAL
0.84 MI NORTH OF LA 675, Iberia, LA
Built 1967 Load: 7.3 t ADT: 750
Randall Rd
PoorOver: CREEK
3.7 MI NW OF RT 190, Tangipahoa, LA
Built 1960 Load: 7.3 t ADT: 2,110
Cleve Kennedy Rd
PoorOver: MORGAN BRANCH
0.6 MI. N OF HWY. 43, Washington, LA
Built 1960 Load: 7.3 t ADT: 330
LA1226
PoorOver: BAYOU CHEVREUILLE
2.7 MI. N OF INT US71, Natchitoches, LA
Built 1967 Load: 7.5 t ADT: 41
Sparrow Lane
PoorOver: MARTEAU BAYOU
0.3 M. SE OF LA 492, Grant, LA
Built 1919 Load: 7.8 t ADT: 40
Bryn Mawr St
PoorOver: Hynson Bayou
0.32 MI. NW OF US 165B, Rapides, LA
Built 1951 Load: 7.8 t ADT: 1,500
Old Baker Rd.
PoorOver: DRAIN
LA 1209, East Baton Rouge, LA
Built 1963 Load: 8.4 t ADT: 2,717
Veazie Rd
PoorOver: FISH BAYOU
1 Mi N. of La 10, St. Landry, LA
Built 1977 Load: 8.4 t ADT: 250
LA0160
PoorOver: DORCHEAT B RELIEF
0.87 MI West OF LA 3008, Webster, LA
Built 1966 Load: 8.4 t ADT: 537
Showing 11,301-11,350 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 |