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
Cooper Rd
FairOver: BAYOU RAPIDES
1.52 MI. NORTH OF LA 28, Rapides, LA
Built 2001 Load: 23.7 t ADT: 200
LA0514
FairOver: CREEK
2.0 Mi. E of US 371, Red River, LA
Built 1971 Load: 23.7 t ADT: 1,196
US0080
FairOver: DRAIN
2.0 MI EAST OF LA 609, Richland, LA
Built 1930 Load: 23.7 t ADT: 1,451
US0090
FairOver: VACHERIE CANAL
3.24 Mi W of LA 83, St. Mary, LA
Built 1978 Load: 23.7 t ADT: 229
BAILEY RD
FairOver: CLEAR BRANCH
0.36 MILES WEST OF LA 10, Vernon, LA
Built 1981 Load: 23.7 t ADT: 110
GEORGIA AVE
FairOver: BUNDICK CREEK
VE799315, Vernon, LA
Built 1978 Load: 23.7 t ADT: 336
LA0965
FairOver: HAMMER CREEK
LA0965, West Feliciana, LA
Built 1973 Load: 23.7 t ADT: 525
GUYTON RD
FairOver: DRAIN TO CHENIERE BRAKE
0.7 MI. W. HWY. 3033, Ouachita, LA
Built 1979 Load: 23.9 t ADT: 37
C.C. Rd
FairOver: EAST BEDICO CREEK
1.33 MILES NORTH OF LA 22, Tangipahoa, LA
Built 2009 Load: 23.9 t ADT: 559
LA1054
FairOver: CREEK
0.4 M NW OF LA 1058, Tangipahoa, LA
Built 1954 Load: 23.9 t ADT: 1,319
POWELL RD
FairOver: BLUE BAYOU
0.9 MI. S. OF CC BELL RD, Allen, LA
Built 2001 Load: 24.0 t ADT: 446
Rodessa St Line Rd
FairOver: BLACK BAYOU
.88 MI. EAST OF TEXAS STA, Caddo, LA
Built 1982 Load: 24.0 t ADT: 260
Rodessa St Line Rd
FairOver: STATE LINE CREEK
1.29 MI. EAST OF TEXAS ST, Caddo, LA
Built 1982 Load: 24.0 t ADT: 260
LA0169
FairOver: DRAIN
7.29 MI SOUTH OF LA 538, Caddo, LA
Built 1978 Load: 24.0 t ADT: 1,085
LA0108
FairOver: DRAIN
2.6 MI SOUTH OF I-10, Calcasieu, LA
Built 1961 Load: 24.0 t ADT: 1,259
COMMON ST
FairOver: CONTRABAND BAYOU
0.06 MI N OF LA 3186, Calcasieu, LA
Built 1999 Load: 24.0 t ADT: 17,746
LA0547
FairOver: CREEK
3.95 MI W OF LA 126, Caldwell, LA
Built 1982 Load: 24.0 t ADT: 606
LA0191
FairOver: ROCKY BRANCH
.22 MI NORTH OF LA 763, De Soto, LA
Built 1958 Load: 24.0 t ADT: 1,093
LA0191
FairOver: DRAIN
.09 MI NORTH OF LA 481, De Soto, LA
Built 1960 Load: 24.0 t ADT: 769
US0190
FairOver: JONES CREEK
US0190, East Baton Rouge, LA
Built 1958 Load: 24.0 t ADT: 24,923
SONDHEIMER LOOP RD
FairOver: FROG CREEK
3.1 MI S of LA 580, East Carroll, LA
Built 1997 Load: 24.0 t ADT: 150
LA0996
FairOver: GRAND BAYOU
2.7 M N of LA 70, Iberville, LA
Built 1973 Load: 24.0 t ADT: 524
LAPALCO BLVD
FairOver: MURPHY CANAL
0.3 MI E OF LA 3017, Jefferson, LA
Built 2010 Load: 24.0 t ADT: 1,974
VETERAN'S BLVD WB
FairOver: BONNABEL CANAL
0.5 MI. E OF CAUSEWA, Jefferson, LA
Built 1960 Load: 24.0 t ADT: 18,150
CARTER ROAD
FairOver: GUM GULLY
0.7 M E of LA 395, Jefferson Davis, LA
Built 1987 Load: 24.0 t ADT: 50
FARM SUPPLY ROAD
FairOver: GUM GULLY
3.8 MI. S. OF LA 102, Jefferson Davis, LA
Built 1981 Load: 24.0 t ADT: 80
Plantation Blvd.
FairOver: DRAINAGE
.2 MI. E. OF K Saloom Rd, Lafayette, LA
Built 1987 Load: 24.0 t ADT: 592
LA0778
FairOver: HEMPHILL CREEK
1.7 MI NORTH OF US 84, LaSalle, LA
Built 1966 Load: 24.0 t ADT: 1,622
LA0145
FairOver: SQUIRES CREEK
2.49 MI N of US 80, Lincoln, LA
Built 1982 Load: 24.0 t ADT: 5,661
EVERETT ST
FairOver: KANSAS CITY SOUTHERN
EVERETT SR / RUSTON, Lincoln, LA
Built 1987 Load: 24.0 t ADT: 5,040
US0080
FairOver: TENSAS RIVER
3.0 MI EAST OF LA 577, Madison, LA
Built 1954 Load: 24.0 t ADT: 1,181
US0165
FairOver: LITTLE B GALION
1.02 MI NORTH OF LA 2, Morehouse, LA
Built 1939 Load: 24.0 t ADT: 1,405
GEORGE FRANKLIN RD
FairOver: BAYOU GALION
4.9 MI S & E INT., Morehouse, LA
Built 1997 Load: 24.0 t ADT: 30
LA0001
FairOver: MORGANZA SPILLWAY
LA0001, Pointe Coupee, LA
Built 1954 Load: 24.0 t ADT: 3,874
US0167
FairOver: BAYOU BOEUF
0.9 MI. SOUTH OF US 71, Rapides, LA
Built 1985 Load: 24.0 t ADT: 2,324
LEGGINS RD
FairOver: TURKEY CREEK
0.5 MI NW of US 80, Richland, LA
Built 2007 Load: 24.0 t ADT: 25
WATERPROOF BRIDGE
FairOver: BLACK BAYOU
LA 182 SOUTHDOWN-MANDALAY, Terrebonne, LA
Built 2009 Load: 24.0 t ADT: 610
LA0157
FairOver: CREEK
.66 MI EAST OF US 371, Webster, LA
Built 1977 Load: 24.0 t ADT: 4,049
LA0160
FairOver: DRY CREEK
.3 MI EAST OF LA 3014, Webster, LA
Built 1957 Load: 24.0 t ADT: 421
Montgomery Xing
FairOver: TRIB TO PRAIRIE BAYOU
0.8 MI W OF HWY 163, Webster, LA
Built 1959 Load: 24.0 t ADT: 281
West St
FairOver: TRIBUTARY TO MILE CREEK
0.3 MI W OF HWY 79-8, Webster, LA
Built 1930 Load: 24.0 t ADT: 4,200
LA0027
FairOver: CREEK
4.17 MI. N OF INT LA12, Beauregard, LA
Built 1979 Load: 24.3 t ADT: 4,695
LA0003
FairOver: COLLINSBURG CREEK
4.27 MI NORTH OF LA 160, Bossier, LA
Built 1934 Load: 24.3 t ADT: 3,399
Pine Hill Rd
FairOver: TRIB. TO CHOCTAW BAYOU
0.7 MI. EAST OF LA 173, Caddo, LA
Built 1969 Load: 24.3 t ADT: 45
WARD LINE RD
FairOver: GOVERNMENT DITCH
3.8 MI SOUTH OF LA 14, Calcasieu, LA
Built 1987 Load: 24.3 t ADT: 1,326
N. KINNY AVE
FairOver: ENGLISH BAYOU LATERAL 14
0.2 MI N OF DAVID ST, Calcasieu, LA
Built 2001 Load: 24.3 t ADT: 50
Kimbletown Rd
FairOver: MULBBERRY CREEK
2.3M NORTH OF LA 152, Claiborne, LA
Built 1990 Load: 24.3 t ADT: 145
Wildcow Bayou Rd
FairOver: Cocodrie Bayou
LOGMI 3.60 E FROM Hwy 129, Concordia, LA
Built 1984 Load: 24.3 t ADT: 110
Wildcow Rd
FairOver: Cocodrie Bayou
LOG MI 2.55 SE OF Hwy 129, Concordia, LA
Built 1984 Load: 24.3 t ADT: 110
LA0191
FairOver: BIG BRANCH
2.14 MI NORTH OF LA 763, De Soto, LA
Built 1958 Load: 24.3 t ADT: 1,093
Showing 2,651-2,700 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 |