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
ATLANTA-VIVIAN RD
FairOver: MYRTIS MILL CREEK
2.99 MI W OF LA 1, Caddo, LA
Built 1984 Load: 20.4 t ADT: 40
Capps City Rd
FairOver: STATE LINE CREEK TRIB
2.25 M EAST OF LA 1, Caddo, LA
Built 1991 Load: 20.4 t ADT: 39
US0090
FairOver: HAMPTONS COULEE
1.0 MI E OF LA 3063, Calcasieu, LA
Built 1954 Load: 20.4 t ADT: 2,509
US0090
FairOver: COONE GULLY
1.9 MI E OF LA 3063, Calcasieu, LA
Built 1954 Load: 20.4 t ADT: 2,509
GRAY RD
FairOver: GUM GULLEY
5.5 MI W OF LA108, Calcasieu, LA
Built 1964 Load: 20.4 t ADT: 278
RAVIA RD
FairOver: HENDERSON BAYOU
0.04 MI WEST OF LA 27, Calcasieu, LA
Built 1972 Load: 20.4 t ADT: 715
RAVIA RD
FairOver: HENDERSON BAYOU
0.4 MI WEST OF LA 27, Calcasieu, LA
Built 1970 Load: 20.4 t ADT: 824
WRIGHT RD
FairOver: WEST FORK ENGLISH BAYOU
0.8 MI EAST OF LA 1256, Calcasieu, LA
Built 1968 Load: 20.4 t ADT: 1,755
MORNINGSTAR RD
FairOver: BAYOU VERDING
0.1 M S OF OLD SPN. TRL, Calcasieu, LA
Built 1959 Load: 20.4 t ADT: 10
CHARLES BREAUX RD
FairOver: CREEK
0.8 MI NORTH OF LA 3059, Calcasieu, LA
Built 1989 Load: 20.4 t ADT: 131
DUNN FERRY RD
FairOver: WEST FORK CALCASIEU RIVE
6.1 MI. E. OF LA 27, Calcasieu, LA
Built 1965 Load: 20.4 t ADT: 899
LA0521
FairOver: DRAIN
2.8 MI NORTH OF LA 2, Claiborne, LA
Built 1975 Load: 20.4 t ADT: 409
S Tiger Bend Rd
FairOver: BOGGY CUT BAYOU
5.3 M E of LA 73, East Baton Rouge, LA
Built 1965 Load: 20.4 t ADT: 5,630
LA0019
FairOver: CARTER CREEK
2.2 M S of LA 10, East Feliciana, LA
Built 1949 Load: 20.4 t ADT: 5,014
Baldridge Rd.
FairOver: BLACK LAKE BAYOU
0.25 Mi NW of La 106, Evangeline, LA
Built 1997 Load: 20.4 t ADT: 11
FDR 530
FairOver: LONG BRANCH
LOGMI O.24 FR 566 TO, Grant, LA
Built 1965 Load: 20.4 t ADT: 20
LA0018
FairOver: HARVEY CANAL
.05 MI EAST OF LA 3018, Jefferson, LA
Built 1975 Load: 20.4 t ADT: 9,678
Destrehan Ave
FairOver: COUSINS CANAL
0.4 MI NE OF LONG LEAF LN, Jefferson, LA
Built 2005 Load: 20.4 t ADT: 2,000
LAPALCO BLVD
FairOver: WEYRAUCH CANAL
0.6MI.E.OF MANHATTAN, Jefferson, LA
Built 1971 Load: 20.4 t ADT: 50,000
Rus Des Babineaux
FairOver: COULEE
0.4 Mi W of LA 93, Lafayette, LA
Built 1979 Load: 20.4 t ADT: 500
BARRIOS STREET
FairOver: FORTY ARPENT CANAL
0.3 MI W. OF LA 1, Lafourche, LA
Built 1969 Load: 20.4 t ADT: 706
US0165
FairOver: CREEK
1.68 MI NORTH OF LA 2, Morehouse, LA
Built 1935 Load: 20.4 t ADT: 1,405
UPLAND RD
FairOver: DRAIN TO PATTEN SLOUGH
2.4 MI. E. INT. 034, Morehouse, LA
Built 1975 Load: 20.4 t ADT: 130
UPLAND RD
FairOver: DRAIN TO PATTEN SLOUGH
1.6 MI. E. INT. 034, Morehouse, LA
Built 1975 Load: 20.4 t ADT: 150
UPLAND RD
FairOver: DRAIN TO PATTEN SLOUGH
1.5 MI. E. INT. 034, Morehouse, LA
Built 1975 Load: 20.4 t ADT: 150
I0010
FairOver: SER RD/UPT/US90-B
3.14 MI EAST OF I-610, Orleans, LA
Built 1960 Load: 20.4 t ADT: 67,143
Crowder BLVD
FairOver: DRAINAGE CANAL
0.75 MI SE OF LA 47, Orleans, LA
Built 1975 Load: 20.4 t
Crowder BLVD
FairOver: DRAINAGE CANAL
0.75 MI SE OF LA 47, Orleans, LA
Built 1975 Load: 20.4 t
LA0838
FairOver: CREEK
4.2 MI EAST OF LA 546, Ouachita, LA
Built 1955 Load: 20.4 t ADT: 8,105
CYPRESS SCHOOL RD
FairOver: CYPRESS CANAL
2 MI W LUNA, Ouachita, LA
Built 1979 Load: 20.4 t ADT: 235
N. Pearl St
FairOver: BR. OVER FRENCH BRANCH
N. 190 ON PEARL ST. 0.60, St. Tammany, LA
Built 1988 Load: 20.4 t ADT: 350
US0190
FairOver: BRANCH
0.9 M E OF LA 445, Tangipahoa, LA
Built 1954 Load: 20.4 t ADT: 8,262
LA0442
FairOver: PONCHATOULA CREEK
0.2 M W OF US 51, Tangipahoa, LA
Built 1979 Load: 20.4 t ADT: 5,026
LA0024
FairOver: LITTLE CAILLOU
0.01 MI S OF LA 659, Terrebonne, LA
Built 1941 Load: 20.4 t ADT: 8,922
CHURCH ST
FairOver: BAYOU TERREBONNE
CITY OF HOUMA, Terrebonne, LA
Built 1979 Load: 20.4 t ADT: 4,110
SAVANNE RD
FairOver: OUISKI BAYOU
0374 LOG MI FROM IN, Terrebonne, LA
Built 1972 Load: 20.4 t ADT: 7,455
LA0550
FairOver: CYPRESS CREEK
.14 MI NORTH OF LA 15, Union, LA
Built 1957 Load: 20.4 t ADT: 464
Vick Rd
FairOver: COULEE
0.2 Mi S of Saltzman Rd, Vermilion, LA
Built 1970 Load: 20.4 t ADT: 25
LA0436
FairOver: DRAIN
0.1 M NE OF LA 21, Washington, LA
Built 1939 Load: 20.4 t ADT: 1,306
LA0076
FairOver: CHAMBERLIN CANAL
2.3 M E of LA 413@LA 76, West Baton Rouge, LA
Built 1952 Load: 20.4 t ADT: 7,562
Cr-225
FairOver: SARA BAYOU
2.8 MI. WNW LA 10, US 61, West Feliciana, LA
Built 2007 Load: 20.4 t ADT: 74
FDR 502
FairOver: N. FORK MILE CREEK
LOGMI 2.62 FR 426 TO, Winn, LA
Built 1968 Load: 20.4 t ADT: 16
LA0073
FairOver: NEW RIVER
LA0073, Ascension, LA
Built 1957 Load: 20.7 t ADT: 7,929
LA7822
FairOver: MACKS BAYOU
.98 MI EAST OF LA 72, Bossier, LA
Built 1970 Load: 20.7 t ADT: 4,896
Johns Rd.
FairOver: Trib To Mill Creek
2 Mi.S. Keatchi-Marshall, Caddo, LA
Built 1982 Load: 20.7 t ADT: 59
Keatchie-Marshall
FairOver: BUSHNECK BAYOU TRIB.
2.0 MILES EAST OF LA 169, Caddo, LA
Built 1985 Load: 20.7 t ADT: 40
Keatchie-Marshall
FairOver: BUSHNECK BAYOU TRIB.
1.7 MILES EAST OF LA 169, Caddo, LA
Built 1985 Load: 20.7 t ADT: 40
Keatchie-Marshall
FairOver: KEACHI MARSHLL,BUSHNECK
1.3 MI. EAST OF LA 169, Caddo, LA
Built 1985 Load: 20.7 t ADT: 40
Robson Rd
FairOver: CHICO BAYOU, ROBSON ROAD
1.9 MI. S.W. OF LA HWY. 1, Caddo, LA
Built 1984 Load: 20.7 t ADT: 97
JEWELLA AVE
FairOver: MOPAC RAILROAD
0.5 MI. N. OF LA 511, Caddo, LA
Built 1982 Load: 20.7 t ADT: 7,514
Showing 2,001-2,050 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 |