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
LA0164
FairOver: CLARKE BAYOU REL
.18 MI EAST OF LA 614, Bossier, LA
Built 1943 Load: 26.3 t ADT: 3,472
LA0169
FairOver: CREEK
8.8 MI NORTH OF LA 172, Caddo, LA
Built 1984 Load: 26.3 t ADT: 1,540
LA0127
FairOver: CASTOR CREEK
3.8 MI NORTH OF LA 125, Caldwell, LA
Built 1970 Load: 26.3 t ADT: 314
LA0566
FairOver: LITTE TENSAS RIVE
2.25 MI E OF LA 15, Concordia, LA
Built 1970 Load: 26.3 t ADT: 216
LA0005
FairOver: CREEK
5.2 MI NORTH OF LA 3015, De Soto, LA
Built 1948 Load: 26.3 t ADT: 4,413
LA0019
FairOver: DOYLE BAYOU
1.7 M N of LA 412, East Feliciana, LA
Built 1949 Load: 26.3 t ADT: 5,682
LA0955
FairOver: TRIB OLIVE BRANCH
3.7 M S of LA 10, East Feliciana, LA
Built 1966 Load: 26.3 t ADT: 989
LA1168
FairOver: BAYOU GRAND LOUIS
6.05 MI EAST OF LA 167, Evangeline, LA
Built 1961 Load: 26.3 t ADT: 409
LA0115
FairOver: ELM BAYOU
.01 MI SE OF LA 181, Evangeline, LA
Built 1957 Load: 26.3 t ADT: 711
LA0676
FairOver: CREEK
0.6 MI WEST OF LA 14, Iberia, LA
Built 1968 Load: 26.3 t ADT: 553
CHRISTMAS ROAD
FairOver: BAYOU DES FAMILLES
LA 45 SOUTH. FOLLOW SIGN, Jefferson, LA
Built 1988 Load: 26.3 t ADT: 300
LA1024
FairOver: CREEK
1.0 M E OF LA 447, Livingston, LA
Built 1962 Load: 26.3 t ADT: 1,020
LA1024
FairOver: CREEK
0.2 M N OF US 190, Livingston, LA
Built 1962 Load: 26.3 t ADT: 1,020
LA1024
FairOver: CREEK
0.1 M N OF US 190, Livingston, LA
Built 1962 Load: 26.3 t ADT: 1,020
LA0142
FairOver: CREEK
2.77 MI NORTH OF US 425, Morehouse, LA
Built 1950 Load: 26.3 t ADT: 4,706
LA0142
FairOver: WILLIAMSON CREEK
2.5 MI NORTH OF LA 543, Morehouse, LA
Built 1950 Load: 26.3 t ADT: 4,706
LA0119
FairOver: CANE RIVER
.13 MI. E OF INT LA1, Natchitoches, LA
Built 1970 Load: 26.3 t ADT: 189
LA0039
FairOver: INDUSTRIAL CANAL
1.6 MI EAST OF LA 3021, Orleans, LA
Built 1957 Load: 26.3 t ADT: 47,739
LA0594
FairOver: YOUNGS BAYOU
.6 MI EAST OF I-20, Ouachita, LA
Built 1965 Load: 26.3 t ADT: 8,579
US0190
FairOver: MORGANZA FLDWY
US0190, Pointe Coupee, LA
Built 1945 Load: 26.3 t ADT: 12,942
LA0465
FairOver: CYPRESS BRANCH
3.88 MI. EAST OF LA 489, Rapides, LA
Built 1947 Load: 26.3 t ADT: 690
LA0465
FairOver: CYPRESS BAYOU
4.41 MI. EAST OF LA 489, Rapides, LA
Built 1947 Load: 26.3 t ADT: 472
LA1199
FairOver: SPRING CREEK
1.24 MI. N OF LA488, Rapides, LA
Built 1965 Load: 26.3 t ADT: 362
LA1036
FairOver: EAST HOG BRANCH
LA1036, St. Helena, LA
Built 1962 Load: 26.3 t ADT: 601
LA1045
FairOver: TICKFAW RIVER
LA1045, St. Helena, LA
Built 1962 Load: 26.3 t ADT: 1,509
LA0752
FairOver: DRAINAGE CANAL
0.2 MI WEST OF LA 751, St. Landry, LA
Built 1968 Load: 26.3 t ADT: 475
US0090/FRONTAGE RD
FairOver: DRAIN
2.7 Miles East of LA 668, St. Mary, LA
Built 1973 Load: 26.3 t ADT: 1,260
LA0022
FairOver: DRAIN
0.2 M E OF LA 445, Tangipahoa, LA
Built 1938 Load: 26.3 t ADT: 6,775
LA1050
FairOver: BEAVER CREEK
0.65 MILES NORTH OF LA 44, Tangipahoa, LA
Built 1960 Load: 26.3 t ADT: 1,583
LA0024
FairOver: ST LOUIS CANAL
LA0024, Terrebonne, LA
Built 1959 Load: 26.3 t ADT: 14,232
Shed Rd
FairOver: TRIB. TO MACKS BAYOU
1.3 MI EAST OF LA 3105, Bossier, LA
Built 1986 Load: 26.6 t ADT: 4,137
I0049
FairOver: SWIFT BAYOU CANAL
0.16 M. N. OF LA 530, Caddo, LA
Built 2013 Load: 26.6 t ADT: 6,846
OLD SPANISH TRAIL
FairOver: CREEK
2.0 MI WEST OF LA 379, Calcasieu, LA
Built 1995 Load: 26.6 t ADT: 344
Stanford Ave
FairOver: UNIVERSITY LAKE SPILLWAY
1.4 M S of I10, East Baton Rouge, LA
Built 1965 Load: 26.6 t ADT: 23,240
Plains-Port Hudson
FairOver: DRAIN BAYOU
2.13 M E OF LA 61, East Baton Rouge, LA
Built 1958 Load: 26.6 t ADT: 1,780
LA0404
FairOver: BAYOU BLACK
0.17 M W LA 404&LA 3001, Iberville, LA
Built 1970 Load: 26.6 t ADT: 551
LAPALCO BLVD
FairOver: VERRET CANAL
0.3MI.E.OF MANHATTAN, Jefferson, LA
Built 1976 Load: 26.6 t ADT: 30,000
FRANK BELL RD
FairOver: BAYOU COULEE
3.4 MI E of LA 138, Morehouse, LA
Built 1995 Load: 26.6 t ADT: 70
US0090
FairOver: IND CL/FRANCE RD/N.O. RR
0.50 M NORTH OF I-10, Orleans, LA
Built 1989 Load: 26.6 t ADT: 1,215
I0510
FairOver: CITY STREETS
1.0M NORTH OF US 90, Orleans, LA
Built 1992 Load: 26.6 t ADT: 10,794
MILLER RD
FairOver: PETTICOAT BAYOU
LOG MILE 0.35 RT. 318, Ouachita, LA
Built 1981 Load: 26.6 t ADT: 330
CROWELL RD
FairOver: BROWN CREEK
1.1 MI. SOUTH of LA 34, Ouachita, LA
Built 1983 Load: 26.6 t ADT: 188
Veterans Drive
FairOver: Bayou Rapides
125' N. OF RAPIDES AVE., Rapides, LA
Built 1985 Load: 26.6 t ADT: 1,550
LA0435
FairOver: TALISHEEK CREEK
0.3 M S OF LA 41, St. Tammany, LA
Built 1977 Load: 26.6 t ADT: 560
LA3009
FairOver: LAKE ST PETER CANAL
1.41 MI WEST OF LA 568, Tensas, LA
Built 1982 Load: 26.6 t ADT: 31
BAILEY RD
FairOver: LITTLE CLEAR CREEK
2.55 MILES WEST OF LA 10, Vernon, LA
Built 1984 Load: 26.6 t ADT: 610
LA0095
FairOver: DRAIN
1.2 MI N. OF LA 365, Acadia, LA
Built 1986 Load: 26.9 t ADT: 5,275
Bayou Dr
FairOver: LITTLE BAY
1.7 MI. N. OF PIERRE PART, Assumption, LA
Built 1984 Load: 26.9 t ADT: 1,056
Lee Chatelain Rd
FairOver: BAYOU GRAND ECORE
2.05 MI. NORTH OF LA 114, Avoyelles, LA
Built 1992 Load: 26.9 t ADT: 170
LA0507
FairOver: BLACK LAKE BAYOU
4.56 MI WEST OF LA 153, Bienville, LA
Built 1980 Load: 26.9 t ADT: 582
Showing 3,001-3,050 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 |