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
Burnell Rd
FairOver: CANAL
1.3 Mi. E of LA 91, Vermilion, LA
Built 1965 Load: 8.7 t ADT: 150
Hazelwood Rd
FairOver: HAZELWOOD GULLY
0.9 MI W of LA 1105, Acadia, LA
Built 1999 Load: 9.1 t ADT: 4
Old Benton Rd
FairOver: Collinsburg Creek
2.5 MI. SW OF LA 3, Bossier, LA
Built 1987 Load: 9.1 t ADT: 500
Browntown Rd
FairOver: CREEK
0.47 M FR 364 TO 369, LaSalle, LA
Built 1989 Load: 9.1 t ADT: 110
LA0103
FairOver: DRAINAGE CANAL
1 MI NORTH OF US 190, St. Landry, LA
Built 1953 Load: 9.1 t ADT: 1,349
LA0036
FairOver: BAYOU LACOMBE
LA0036, St. Tammany, LA
Built 1955 Load: 9.1 t ADT: 2,206
Corin Pkwy.
FairOver: BAYOU
CITY OF MANDEVILLE, St. Tammany, LA
Built 1960 Load: 9.1 t ADT: 100
LA0450
FairOver: S CARSON CREEK
1.6 M N OF LA 10, Washington, LA
Built 1958 Load: 9.1 t ADT: 1,162
Mt. Pleasant Rd
FairOver: CREEK
3.1 MI.WEST.OF.LA. 1, Washington, LA
Built 1970 Load: 9.1 t ADT: 1,170
Hickory Dr
FairOver: CANAL/CREEK
0.2M EAST OF PONTCHR, St. Tammany, LA
Built 1964 Load: 9.4 t ADT: 983
Leman Dr.
FairOver: CYPRESS CREEK
3.0 Mi N of La 106, Evangeline, LA
Built 1986 Load: 9.7 t ADT: 20
WILDWOOD DR
FairOver: BAYOU MARIA TRIB.
0.09 M. N. OF SUSEK DRIVE, Rapides, LA
Built 1975 Load: 9.7 t ADT: 150
LA3252
FairOver: CHOCTAW BAYOU
.01 MI EAST OF LA 573, Tensas, LA
Built 1971 Load: 9.7 t ADT: 136
S. Lemaire Ave
FairOver: SLEDGE CANAL
0.35 Mi S of La 14, Vermilion, LA
Built 1965 Load: 9.7 t ADT: 780
Rue Des Etoiles
FairOver: COULEE
.8 Mi E of St Esprit Rd, Lafayette, LA
Built 1970 Load: 10.0 t ADT: 340
ATV TRAIL
FairOver: MACK BAYOU
MACK BAYOU (NORTH), Madison, LA
Built 1986 Load: 10.0 t ADT: 2
Vowells Mill Rd
FairOver: HORSEPEN CREEK
1.8 MILES WEST OF LA 117, Natchitoches, LA
Built 1990 Load: 10.0 t ADT: 42
TACK ALLEN RD
FairOver: DRAIN TO CYPRESS CREEK
1.1 MI. E. HWY. 557, Ouachita, LA
Built 1975 Load: 10.0 t ADT: 30
LA0040
FairOver: MORGAN BRANCH
1.0 M E OF LA 1077, St. Tammany, LA
Built 1954 Load: 10.0 t ADT: 3,755
Bruhl Rd
FairOver: BOGUE FALAYA RIVER
1.5 M EAST OF LA 25, St. Tammany, LA
Built 1990 Load: 10.0 t ADT: 150
LA1054
FairOver: BIG CREEK
LA1054, Tangipahoa, LA
Built 1955 Load: 10.0 t ADT: 1,264
LA1048
FairOver: NATALBANY CREEK
LA1048, Tangipahoa, LA
Built 1967 Load: 10.0 t ADT: 883
Saltzman Rd
FairOver: COULEE
0.8 Mi S of La 711, Vermilion, LA
Built 1968 Load: 10.0 t ADT: 140
LOUISIANA AVENUE
FairOver: KCS RAILROAD
FT. POLK, LA, Vernon, LA
Built 1978 Load: 10.0 t ADT: 4,500
LA0438
FairOver: HAY CREEK
LA0438, Washington, LA
Built 1959 Load: 10.0 t ADT: 659
LA0439
FairOver: BENS CREEK
10.6 Mi SE of LA 10, Washington, LA
Built 1955 Load: 10.0 t ADT: 1,235
Thigpen Rd
FairOver: BRIDGE OVER BOGALUSA CR.
.94 MI W OF HWY 45, Washington, LA
Built 1999 Load: 10.0 t ADT: 469
Shadows Lane
FairOver: TRIB TO BRUSH CREEK
0.2 MI E OF HWY 531, Webster, LA
Built 1978 Load: 10.0 t ADT: 276
Bankston Rd
FairOver: CREEK
3.2 MI SE OF SR 16 E, Tangipahoa, LA
Built 1975 Load: 10.2 t ADT: 551
LA0399
FairOver: CREEK
.44 MI NORTH OF LA 458, Vernon, LA
Built 1943 Load: 10.3 t ADT: 396
Gilbert at Fern
FairOver: OCKLEY DITCH
1.1 MI. NO.OF PIERRE, Caddo, LA
Built 1964 Load: 10.4 t ADT: 2,480
ARDOIN CEMETERY RD
FairOver: CREEK
0.5 MI S of ABELL RD, Jefferson Davis, LA
Built 1978 Load: 10.4 t ADT: 40
BRYAN RD
FairOver: GULLY
0.3 MI E of LA 99, Jefferson Davis, LA
Built 1979 Load: 10.4 t ADT: 30
Carrey St
FairOver: CREEK
0.35 MI NE OF US 11, St. Tammany, LA
Built 1960 Load: 10.4 t
Coon's Rd
FairOver: BIG FOUR DITCH
.7 Mi E of Ellis Bridge R, Vermilion, LA
Built 1978 Load: 10.4 t ADT: 30
Langlinais  Rd.
FairOver: Parc Perdu Bayou
0.38 Mi E of LA 89, Lafayette, LA
Load: 10.6 t ADT: 33
CARL HOPPE ROAD
FairOver: BAYOU
1.7 MI W of US 165, Jefferson Davis, LA
Built 1980 Load: 10.7 t ADT: 30
ABBIE FONTENOT RD.
FairOver: BAYOU
1.0 MI E of LA 383, Jefferson Davis, LA
Built 1980 Load: 10.7 t ADT: 130
Ian Johnson Rd
FairOver: LITTLE INDIAN CREEK
0.7 MI. SW OF LA 28, Rapides, LA
Built 1992 Load: 10.7 t ADT: 125
HEMBLING DR
FairOver: UNNAMED STREAM
0.05 MI. SOUTH OF LA 28, Rapides, LA
Built 1970 Load: 10.7 t ADT: 200
Olive St
FairOver: CREEK
0.4MI.EASTOF PONCH D, St. Tammany, LA
Built 1960 Load: 10.7 t
Coffee St
FairOver: CREEK
0.2MI.N.OF LAKE SHOR, St. Tammany, LA
Built 1970 Load: 10.7 t
ARKADELPHIA RD
FairOver: SIX MILE CREEK RELIEF
3.9 MI WEST OF LA 377, Allen, LA
Built 1975 Load: 10.9 t ADT: 260
SONNY FONTENOT RD
FairOver: CANAL
0.1 MI E OF S. THOMPSON R, Calcasieu, LA
Built 1995 Load: 10.9 t ADT: 150
RILEY FRAZIER RD
FairOver: CREEK
0.2 MI W OF INT LA 389, Calcasieu, LA
Built 1996 Load: 10.9 t ADT: 200
S. 6TH ST
FairOver: DRAIN TO GARRETT CREEK
.6 MI. W. INT. 006, Jackson, LA
Built 1984 Load: 10.9 t ADT: 378
Kirby Rd
FairOver: CREEK
1 mile NE of LA 459, LaSalle, LA
Built 1975 Load: 10.9 t ADT: 100
LA0182
FairOver: BAYOU BLACK
.01 MI EAST OF LA 20, Terrebonne, LA
Built 1946 Load: 10.9 t ADT: 3,687
LA0014-B
FairOver: VERMILION R/ABBEVILLE
0.13 MI W OF US 167, Vermilion, LA
Built 1938 Load: 10.9 t ADT: 7,662
LA0534
FairOver: DRAIN
3.0 MI NORTH OF LA 534-S, Claiborne, LA
Built 1974 Load: 11.0 t ADT: 118
Showing 951-1,000 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 |