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
Leonard Seals Rd
PoorOver: JOES BRANCH
10.5 MI. W OF HWY. 2, Washington, LA
Built 1970 Load: 10.0 t ADT: 475
REEDS BRIDGE RD
PoorOver: CALCASIEU RIVER RELIEF
1.9 MI WEST OF US 165, Allen, LA
Built 1960 Load: 10.2 t ADT: 132
Berry Bowl Rd
PoorOver: CREEK
1.5 MI NW OF JCT 51, Tangipahoa, LA
Built 1975 Load: 10.2 t ADT: 310
Harvey Lavigne
PoorOver: BEDICO CREEK
4.6 MI SE OF LA 445, Tangipahoa, LA
Built 1975 Load: 10.3 t ADT: 8
Marathon Rd
PoorOver: DRY CREEK
1.5 MI S OF HWY 160, Webster, LA
Built 1976 Load: 10.3 t ADT: 203
LA0157
PoorOver: BODCAU BAYOU
4.0 MI NORTH OF LA 528, Bossier, LA
Built 1969 Load: 10.4 t ADT: 846
LA0717
PoorOver: BAYOU
7.4 MI. W OF LA 14, Cameron, LA
Built 1966 Load: 10.4 t ADT: 511
MURIA RD.
PoorOver: LITTLE CHENIER BAYOU
0.1 MI S of CHENIER RD, Cameron, LA
Built 1968 Load: 10.4 t ADT: 372
OLSON DR
PoorOver: BAYOU BARRIERE
0.8 MI S OF BARRIERE RD, Catahoula, LA
Built 1960 Load: 10.4 t ADT: 300
LA0513
PoorOver: DRAIN
1.1 MI NORTH OF LA 483, De Soto, LA
Built 1969 Load: 10.4 t ADT: 243
W. Chestnut St
PoorOver: CREEK BRIDGE
0.2 MI W US 51, Tangipahoa, LA
Built 1979 Load: 10.4 t ADT: 81
LA0153
PoorOver: DRAIN
3.59 MI NORTH OF LA 155, Bienville, LA
Built 1975 Load: 10.7 t ADT: 1,377
Philadelphia Rd
PoorOver: HAINES CREEK
4.09 MI. ENE OF LA 1205, Rapides, LA
Built 1980 Load: 10.7 t ADT: 200
BOBTOWN BRIDGE RD
PoorOver: GRAND CAILLOU BAYOU
0.05 Mi W of La 57, Terrebonne, LA
Built 1960 Load: 10.7 t ADT: 2,395
Ernest Faulk Rd
PoorOver: COULEE
0.6 Mi S of LA 332, Vermilion, LA
Built 1999 Load: 10.7 t ADT: 90
LA1123
PoorOver: CREEK
4.24 MI WEST OF LA 98, Acadia, LA
Built 1954 Load: 10.9 t ADT: 134
Chinaberry Dr.
PoorOver: COULEE
0.1 Mi. S. of La 91, Acadia, LA
Built 1974 Load: 10.9 t ADT: 48
Atkins Clark Rd
PoorOver: Flat Rivers Ditch
0.2 MI EAST OF US 71, Bossier, LA
Built 1988 Load: 10.9 t ADT: 50
LA0173
PoorOver: CREEK
5.0 MI N OF LA 3194, Caddo, LA
Built 1950 Load: 10.9 t ADT: 3,057
LA1072
PoorOver: Warner Creek
3.4 Miles SE of LA 16, Washington, LA
Built 1959 Load: 10.9 t ADT: 1,105
LA1055
PoorOver: SILVER CREEK RELIEF
1.4 M E OF LA 38, Washington, LA
Built 1957 Load: 10.9 t ADT: 94
LA0169
PoorOver: PINEY BAYOU
6.7 MI NORTH OF I-20, Caddo, LA
Built 1966 Load: 11.0 t ADT: 1,298
Stanley Aubin Ln
PoorOver: WEINER CREEK
0.1 MI E of Cedarcrest Av, East Baton Rouge, LA
Built 1960 Load: 11.0 t ADT: 100
LA0952
PoorOver: MCKOWEN CREEK
1.7 miles N of La 10, East Feliciana, LA
Built 1966 Load: 11.0 t ADT: 1,341
LA0952
PoorOver: BEAVER CREEK
LA0952, East Feliciana, LA
Built 1966 Load: 11.0 t ADT: 1,341
Kings Dr
PoorOver: ALLEN BAYOU
PLANTATION ESTATES, Livingston, LA
Built 1988 Load: 11.0 t ADT: 450
Lake Forest BLVD
PoorOver: LAWRENCE CANAL
0.1 MI. E. OF BENTLE, Orleans, LA
Built 1975 Load: 11.0 t
HALES RD
PoorOver: CREEK
LOGMI 0.01 FR 0DE TO, Richland, LA
Built 1966 Load: 11.0 t ADT: 230
Lock # 3 Rd
PoorOver: CREEK
RT 778 1.55 MI E OF, St. Tammany, LA
Built 1960 Load: 11.0 t ADT: 100
Waterplant Rd.
PoorOver: TERREBONNE BAYOU
0.01 E OF LA 24, Terrebonne, LA
Built 1959 Load: 11.0 t ADT: 280
LA0082
PoorOver: EAST RELEIF
9.42 MI S. OF LA 3147, Vermilion, LA
Built 1958 Load: 11.0 t ADT: 2,899
Redbird Rd.
PoorOver: Coulee
1.1 Mi. S. of Istre Rd, Acadia, LA
Built 1965 Load: 11.3 t ADT: 24
LA1156
PoorOver: MILL CREEK
0.9 MI E of LA 112, Allen, LA
Built 1966 Load: 11.3 t ADT: 550
Palmetto Ave
PoorOver: Lil Cypress Bayou
0.6 MI E OF HWY 3, Bossier, LA
Built 1965 Load: 11.3 t ADT: 3,000
LA0169
PoorOver: S FORK CROSS B
.6 MI NORTH OF I-20, Caddo, LA
Built 1965 Load: 11.3 t ADT: 2,397
LYONS RD
PoorOver: BAYOU CHENE
0.7 MI S of LA 1126, Jefferson Davis, LA
Built 1978 Load: 11.3 t ADT: 80
Oak Ridge Park Rd
PoorOver: CANAL
0.5M WEST OF LA 1, Lafourche, LA
Built 1981 Load: 11.3 t ADT: 81
US0084
PoorOver: M P R/R
.91 MI EAST OF US 165, LaSalle, LA
Built 1932 Load: 11.3 t ADT: 1,473
Ginny Ln
PoorOver: BLOOD RIVER
0.70 MILES SOUTH OF LA.42, Livingston, LA
Built 1995 Load: 11.3 t ADT: 8
Meadow Ln
PoorOver: SPILLERS CREEK
0.4 Miles South of LA 16, Livingston, LA
Built 1995 Load: 11.3 t ADT: 352
LA0119
PoorOver: CREEK
0.40 MILES NORTH OF LA 8, Natchitoches, LA
Built 1971 Load: 11.3 t ADT: 189
LA3256
PoorOver: ENGLISH BAYOU
.74 MI NORTH OF US 90, Calcasieu, LA
Built 1969 Load: 11.7 t ADT: 1,062
Fraternity St
PoorOver: MONTE SANO BAYOU
.5 MI N. OF SCOTLANDVILLE, East Baton Rouge, LA
Built 1982 Load: 11.7 t ADT: 553
Ave G
PoorOver: ROADSIDE DITCH
7' W OF LA 19, East Baton Rouge, LA
Built 1978 Load: 11.7 t ADT: 350
Government Rd
PoorOver: CYPRESS CR.
0.86 M. E. OF LA 153 NEAR, Natchitoches, LA
Built 1965 Load: 11.7 t ADT: 152
US0090
PoorOver: WEST MIDDLE RIVER
1.9 mi NE of US 190, St. Tammany, LA
Built 1933 Load: 11.7 t ADT: 1,215
Chappepeela Rd
PoorOver: BRUSHY BRANCH
2 MI.NE.OF JCT.1064, Tangipahoa, LA
Built 1974 Load: 11.7 t ADT: 1,520
W. P. Stewart
PoorOver: LEES CREEK
1.5 MI. W OF 1075, Washington, LA
Built 1970 Load: 11.7 t ADT: 430
LA0589
PoorOver: ALLIGATOR BAYOU
.6 MI EAST OF LA 17, West Carroll, LA
Built 1957 Load: 11.7 t ADT: 233
LA1123
PoorOver: CREEK
2.23 MI WEST OF LA 98, Acadia, LA
Built 1954 Load: 11.8 t ADT: 134
Showing 11,401-11,450 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 |