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
LA0151
PoorOver: NORTH CHENIERE CR
5.21 MI NORTH OF LA 546, Ouachita, LA
Built 1958 Load: 28.1 t ADT: 2,828
Pine Island Rd
PoorOver: Warren Canal
5.9 Mi W of LA 82, Vermilion, LA
Built 2000 Load: 28.1 t ADT: 50
LA0002
PoorOver: RED RIVER-MILLER'S BLUFF
3.3 MI EAST OF US 71, Bossier, LA
Built 1955 Load: 28.2 t ADT: 2,059
US0165
PoorOver: DRAIN
2.5 MI NORTH OF LA 101, Jefferson Davis, LA
Built 1937 Load: 28.2 t ADT: 4,912
LA0507
PoorOver: BRUSHY CREEK
1.0 MI NORTH OF LA 784, Red River, LA
Built 1979 Load: 28.2 t ADT: 517
S. Flannery Rd
PoorOver: LIVELY BAYOU
440 Ft N of LA 426, East Baton Rouge, LA
Built 1965 Load: 28.3 t ADT: 12,710
US0165
PoorOver: CREEK
5.07 MI NORTH OF LA 2, Morehouse, LA
Built 1939 Load: 28.5 t ADT: 1,405
US0165
PoorOver: BAYOU GALION
1.5 MI NORTH OF SOUTH INT, Morehouse, LA
Built 1935 Load: 28.5 t ADT: 1,405
Harry Savoy Rd
PoorOver: DRAINAGE BAYOU
.8 MI NE LA 431, LA 621, Ascension, LA
Built 1993 Load: 28.8 t ADT: 100
LA0168
PoorOver: NANCE BRANCH
6.38 MI E OF LA 1, Caddo, LA
Built 1983 Load: 28.8 t ADT: 625
LA0015
PoorOver: OLD RIVER OVERBANK C.S.
75MI NW OF BATON ROUGE, Concordia, LA
Built 1959 Load: 28.8 t ADT: 602
US0090
PoorOver: NEW IBERIA SOUTHERN CANA
1.10 Mi W of LA 83, Iberia, LA
Built 1999 Load: 28.8 t ADT: 12,192
I0010
PoorOver: VET MEM HWY
1.9 MI EAST OF LA 49, Jefferson, LA
Built 1967 Load: 28.8 t ADT: 41,695
LA1208-1
PoorOver: HORSESHOE CANAL
3.0 MI. E OF US71, Rapides, LA
Built 1975 Load: 28.8 t ADT: 4,442
LA0507
PoorOver: GRAND BAYOU RELIEF
1.84 MI NORTH OF US 71, Red River, LA
Built 1976 Load: 28.8 t ADT: 691
LA0010
PoorOver: DRAIN
0.5 MILES EAST OF LA 450, Washington, LA
Built 1990 Load: 28.8 t ADT: 1,478
Sittig St.
PoorOver: COULEE
0.28 MI. EAST OF LA 755, Acadia, LA
Built 1990 Load: 29.0 t ADT: 2,016
Bay St
PoorOver: NORTHDALE CANAL
0.1 MI W of LA 3164, East Baton Rouge, LA
Built 1960 Load: 29.0 t ADT: 2,397
Woodview Ln
PoorOver: DRAINAGE DITCH
.4 MILES FROM LA 413 ON W, Pointe Coupee, LA
Built 1970 Load: 29.0 t ADT: 136
LA0175
PoorOver: BAYOU SAN MIGUEL
2.18 M N OF N JCT. LA 120, Sabine, LA
Built 1950 Load: 29.0 t ADT: 1,587
LA0604
PoorOver: CREEK
5.66 MI NORTH OF LA 605, Tensas, LA
Built 1962 Load: 29.0 t ADT: 1,151
US0090
PoorOver: BAYOU RAMOS
3.19 Mi E of LA 182, St. Mary, LA
Built 1994 Load: 29.2 t ADT: 7,885
US0090
PoorOver: BAYOU RAMOS
2.5 Mi W. of LA 662, St. Mary, LA
Built 1994 Load: 29.2 t ADT: 10,035
COTTONGIN CASTOR
PoorOver: CASTOR CREEK
3.6 MI NE OF LA 26, Allen, LA
Built 1982 Load: 29.5 t ADT: 131
US0090
PoorOver: NEW IBERIA SOUTHERN CANA
1.3 MI E of LA 329, Iberia, LA
Built 1999 Load: 29.5 t ADT: 3,244
WALL BLVD
PoorOver: BAYOU FATMA
.80 MI.S. OF LAPALCO BLVD, Jefferson, LA
Built 1980 Load: 29.5 t ADT: 8,000
Joe Brown Memorial
PoorOver: LAGOON
0.2 MI. E. OF READ B, Orleans, LA
Built 1975 Load: 29.5 t
LA3094
PoorOver: TWELVE MILE BAYOU
.9 MI NORTH OF LA 173, Caddo, LA
Built 1968 Load: 29.8 t ADT: 14,003
US0165
PoorOver: LITTLE RIVER
2.9 MI SOUTH OF US 84, LaSalle, LA
Built 1956 Load: 29.9 t ADT: 4,700
US0084
PoorOver: CANEY BAYOU
1.4 MI EAST OF LA 566, Concordia, LA
Built 1932 Load: 30.1 t ADT: 6,163
NELSON ROAD
PoorOver: CANAL
0.3 MI N of LA 1126, Jefferson Davis, LA
Built 1973 Load: 30.1 t ADT: 50
FDR 337
PoorOver: MIDDLE CREEK
NATIONAL FOREST ROAD, Natchitoches, LA
Built 1970 Load: 30.5 t ADT: 30
I0010
PoorOver: SERVICE RD & UPT R/R
3.13 MI EAST OF I-610, Orleans, LA
Built 1960 Load: 30.8 t ADT: 154,311
I0020
PoorOver: CREEK
2.43 MI EAST OF LA 147, Lincoln, LA
Built 1963 Load: 31.1 t ADT: 50,895
Holiday Dr
PoorOver: HOLIDAY DR(SB)OVER ALGIE
0.01 MI.W.OF DEGAULLE, Orleans, LA
Built 1958 Load: 31.1 t
FDR 900
PoorOver: BARBER CREEK
0.39 MI. W. OF LA. 9, Claiborne, LA
Built 1976 Load: 31.4 t ADT: 50
US0061
PoorOver: BATON ROUGE BAYOU
4.0 MI S OF LA 64, East Baton Rouge, LA
Built 1961 Load: 31.4 t ADT: 9,721
Bob Davis Rd
PoorOver: GREER CREEK
1.3 MI. W. OF LA 9, Claiborne, LA
Built 2013 Load: 32.1 t ADT: 25
East 6th St
PoorOver: DRAIN CANAL
0.1 MI. S. OF LA 406, Orleans, LA
Built 1960 Load: 32.1 t
US0084
PoorOver: BAYOU PIERRE
2.44 MI WEST OF LA 1, Red River, LA
Built 1955 Load: 32.1 t ADT: 2,013
BERNARD FONTENOT
PoorOver: MUD CREEK
0.8 MI E of LA 113, Allen, LA
Built 1990 Load: 32.4 t ADT: 58
Doughty Rd
PoorOver: HAHA BAYOU
3.2 M NW of LA 922, Catahoula, LA
Built 1987 Load: 32.4 t ADT: 90
LA0524
PoorOver: JESSE BRANCH
1.1 MI WEST OF US 165, Grant, LA
Built 1931 Load: 32.4 t ADT: 14
Courtney Rd
PoorOver: DRY CREEK
0.4 MI. EAST OF LA 783, Red River, LA
Built 1986 Load: 32.4 t ADT: 46
LA0015
PoorOver: CREEK
.8 MI NORTH OF LA 549, Union, LA
Built 1953 Load: 32.4 t ADT: 5,557
I0020
PoorOver: LK SHORE DR&KCSRR
.5 MI EAST OF US 80, Caddo, LA
Built 1965 Load: 32.7 t ADT: 98,318
LA0108
PoorOver: BAYOU D'INDE
1.0 M S of I-10, Calcasieu, LA
Built 1945 Load: 32.7 t ADT: 10,981
AIRFIELD ROAD
PoorOver: BUNDICK CREEK
VE 821 349, Vernon, LA
Built 1979 Load: 32.7 t ADT: 2
Lee Price Rd
PoorOver: WHITTEN CREEK
3.4 M. E. PRIDE LOOKOUT, East Baton Rouge, LA
Built 1980 Load: 32.9 t ADT: 89
LA0046
PoorOver: SISTER STREET
2.34 MI SOUTH OF LA 39, Orleans, LA
Built 1960 Load: 33.4 t ADT: 23,049
Showing 12,051-12,100 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 |