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
LA0006
PoorOver: SAN JOSE CREEK
4.36 MI EAST OF LA 476, Sabine, LA
Built 1950 Load: 41.7 t ADT: 6,363
LA0009
PoorOver: LEATHERMAN CREEK
6.5 MI NORTH OF LA 2, Claiborne, LA
Built 1975 Load: 42.6 t ADT: 2,248
US0190
PoorOver: BEAR CREEK
1.6 MI. E OF INT LA 113, Allen, LA
Built 1991 Load: 43.5 t ADT: 3,263
Lithcombe Rd
PoorOver: COULEE MANUEL
1.0 Mi S of US 167, Evangeline, LA
Built 2001 Load: 46.0 t ADT: 80
POM ROY RD.
PoorOver: MITCHELL BAYOU
0.8 MI S OF LA 14, Jefferson Davis, LA
Built 1988 Load: 46.7 t ADT: 30
LA0027
PoorOver: ICWW GIBBSTOWN
8.53 MI. N OF INT LA1143, Cameron, LA
Built 1976 Load: 48.1 t ADT: 3,506
Ridge RD.
PoorOver: INDIAN BAYOU (SPOIL BANK
0.65 Mi E of LA 343, Lafayette, LA
Built 1987 Load: 49.0 t ADT: 2,790
I0020
PoorOver: CROWS CR RELIEF
0.30M EAST OF WEBSTER PH, Bienville, LA
Built 1960 Load: 51.7 t ADT: 37,514
LA0122
PoorOver: CREEK
4.2 M E OF E JCT LA 471, Grant, LA
Built 1988 Load: 53.8 t ADT: 683
LA0163
PoorOver: CLARKE BAYOU
.8 MI WEST OF LA 527, Webster, LA
Built 1984 Load: 57.2 t ADT: 2,091
LA0928
PoorOver: JIM BAYOU
1.5 miles SW of LA 427, Ascension, LA
Built 1966 Load: 58.0 t ADT: 5,446
LA0109
PoorOver: DRAIN
2.3 MI W OF LA 27, Beauregard, LA
Built 1963 Load: 58.0 t ADT: 674
US0190
PoorOver: DRAIN
4.3 MI E. OF LA 111, Beauregard, LA
Built 1964 Load: 61.2 t ADT: 4,254
PRICE RD
PoorOver: LEE CREEK
.5 MI S. INT. 195, Union, LA
Built 1994 Load: 61.6 t ADT: 32
US0190
PoorOver: CREEK
1.1 M N OF LA 37, East Baton Rouge, LA
Built 1960 Load: 68.4 t ADT: 44,391
Dorcheat Rd
PoorOver: COW BRANCH
6 MI N OF HWY 79-80, Webster, LA
Built 1971 Load: 68.4 t ADT: 833
US0190
PoorOver: DRAIN
2.0 MI EAST OF LA 3226, Beauregard, LA
Built 1964 Load: 74.5 t ADT: 18,056
Sanders Rd
PoorOver: TRIBUTARY TO CROWS CREEK
1.21 MI E OF US 79, Claiborne, LA
Built 1984 Load: 74.5 t ADT: 150
Duff Rd
PoorOver: PIPE OVER BEAVER BRANCH
4 MI NW OF LA 447 EXIT, Livingston, LA
Built 1985 Load: 74.5 t ADT: 800
HODGE RD
PoorOver: CYPRESS BAYOU
3 MI SW MOUND, Madison, LA
Built 1984 Load: 74.5 t ADT: 142
I0049
PoorOver: BAYOU DERBONNE
0.69 MILES NORTH OF LA 11, Natchitoches, LA
Built 1986 Load: 74.5 t ADT: 18,305
N. Wllie Rd
PoorOver: DRAINAGE DITCH
2.2 M NORTH OF LA 1077, St. Tammany, LA
Built 1990 Load: 74.5 t ADT: 2,255
PILGRIM REST CH RD
PoorOver: STEEP BANK CREEK
1.7 MI. NW INT. 209, Union, LA
Built 1983 Load: 74.5 t ADT: 366
HOLLY GROVE RD
PoorOver: FRANKLIN BRANCH
0.25 M. W. OF JCT. US 171, Vernon, LA
Built 1983 Load: 74.5 t ADT: 120
SAN HILL RD
PoorOver: RED ROCK BRANCH
1.2 MI E. OF HWY 159, Webster, LA
Built 1986 Load: 74.5 t ADT: 268
Machen St
PoorOver: LITTLE CROOKED CREEK
0.27 MI EAST OF LA 157, Webster, LA
Built 1988 Load: 74.5 t ADT: 1,500
LA0126
PoorOver: SPRING CREEK
4.57 MILES EAST OF LA 127, Winn, LA
Built 1985 Load: 74.5 t ADT: 385
LA0126
PoorOver: BOZEMAN BRANCH
6.48 MILES EAST OF LA 127, Winn, LA
Built 1985 Load: 74.5 t ADT: 349
WILLIAMS STREET
PoorOver: DRAINAGE TO ZOURIE BAYOU
NEAR PENDLETON DR, Vernon, LA
Built 1980 Load: 79.1 t ADT: 300
N. HOLLYWOOD RD
PoorOver: DRAIN CANAL
0.6 MI. W. OF LA 182, Terrebonne, LA
Built 1965 Load: 97.2 t ADT: 13,934
BRADY BRIDGE RD
PoorOver: DU LARGE BAYOU
0.01 MI W OF LA 315, Terrebonne, LA
Built 1960 Load: 99.9 t ADT: 700
CARPENTERS BRDG RD
Structurally DeficientOver: WHISKEY CHITTO CREEK
7.6 MI S of LA 26, Allen, LA
Built 1965 ADT: 100
Bayou Boeuf Rd
Structurally DeficientOver: DRAINAGE CANAL
0.5 Mi. N. of US 90, Assumption, LA
Built 1950 ADT: 4
Chuck Davis Rd
Structurally DeficientOver: BOGGY BAYOU CANAL
3.0M EAST LA 1190/LA 452, Avoyelles, LA
Built 1970 ADT: 40
DRU RD
Structurally DeficientOver: COLE CREEK
0.2 MI N OF SUSIE ALSTON, Beauregard, LA
Built 2003 ADT: 2
Jot Em Down Rd
Structurally DeficientOver: TRIBUTARY TO SALING BAYO
1.8 MI. NO. OF LA 50, Bienville, LA
Built 1952 ADT: 85
Calhoun Rd
Structurally DeficientOver: TRIBUTARY TO BEAR CREEK
0.2 MI E OF LA 9, Bienville, LA
Built 1978 ADT: 40
Saline Ridge Rd
Structurally DeficientOver: TRIBUTARY TO SALINE BAYO
1.0 MI. S.E. OF U.S., Bienville, LA
Built 1980 ADT: 130
Grover Jones Rd
Structurally DeficientOver: WILLIAMS CREEK
3.6 MI. S.E. OF U.S., Bienville, LA
Built 1977 ADT: 150
Grover Jones Rd
Structurally DeficientOver: TRIB. TO BLACKLAKE CREEK
1.0 MI. S.E. OF U.S., Bienville, LA
Built 1972 ADT: 170
Smith Rd
Structurally DeficientOver: Red Chute Bayou
1.6 MI E. OF US 71, Bossier, LA
Built 1984 ADT: 250
Leila Rd
Structurally DeficientOver: Boggs Creek Trib
3 MI E OF HWY 3, Bossier, LA
Built 1979 ADT: 60
LA0012
Structurally DeficientOver: MUD LAKE
2.4 MI W of LA 109, Calcasieu, LA
Built 1952 ADT: 3,365
I0010
Structurally DeficientOver: SABINE RELIEF
2.1 MI WEST OF LA 109, Calcasieu, LA
Built 1954 ADT: 86,969
PACKING HOUSE RD
Structurally DeficientOver: KINNER GULLY
0.5 MI N of US 90, Calcasieu, LA
Built 1995 ADT: 653
LA0506
Structurally DeficientOver: DRAIN
6.7 MI WEST OF US 165, Caldwell, LA
Built 1931 ADT: 306
LA0009
Structurally DeficientOver: CREEK
9.96 MI NORTH OF LA 2, Claiborne, LA
Built 1949 ADT: 1,635
LA0009
Structurally DeficientOver: CREEK
10.09 MI NORTH OF LA 2, Claiborne, LA
Built 1949 ADT: 1,635
LA0009
Structurally DeficientOver: MIDDLEFORK BAYOU DARBONN
10.29 MI NORTH OF LA 2, Claiborne, LA
Built 1949 ADT: 1,635
LA0534-S
Structurally DeficientOver: CANEY CREEK
.7 MI NORTH OF LA 2, Claiborne, LA
Built 1976 ADT: 118
Showing 12,151-12,200 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 |