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
LA0154
FairOver: CREEK
5.96 MI NORTH OF I-20, Claiborne, LA
Built 1931 Load: 32.4 t ADT: 609
LA0520
FairOver: STEEP CREEK
1.95 MI NORTH OF LA 2 ALT, Claiborne, LA
Built 1961 Load: 32.4 t ADT: 374
LA0520
FairOver: LICK CREEK
3.84 MI NORTH OF LA 2 ALT, Claiborne, LA
Built 1961 Load: 32.4 t ADT: 374
Crump Dr
FairOver: MIDDLEFORK BAYOU DARBONN
.63 MI NORTH OF JCT LA2 A, Claiborne, LA
Built 1958 Load: 32.4 t ADT: 250
Maddry Rd
FairOver: CROWS CREEK TRIB
0.5 M NORTH OF US 179, Claiborne, LA
Built 1990 Load: 32.4 t ADT: 130
Moreland Rd
FairOver: BRUSH CREEK
1.0 MI WEST OF LA 9, Claiborne, LA
Built 1986 Load: 32.4 t ADT: 70
LA0015
FairOver: OLD RIVER LOW SILL C.S.
75 MI NW OF BATON ROUGE, Concordia, LA
Built 1959 Load: 32.4 t ADT: 602
Red R. Levee Rd
FairOver: Cocodrie Bayou
0.8 MI N OF LA 910, Concordia, LA
Built 1955 Load: 32.4 t ADT: 16
US0084
FairOver: BAYOU
.9 MI EAST OF LA 191, De Soto, LA
Built 1951 Load: 32.4 t ADT: 4,251
US0084
FairOver: BAYOU
3.1 MI EAST OF LA 763, De Soto, LA
Built 1951 Load: 32.4 t ADT: 4,626
US0171
FairOver: BAYOU GRAND CANE
3.2 MI. N. OF 3015, De Soto, LA
Built 1932 Load: 32.4 t ADT: 6,256
US0171
FairOver: US 171 OVER BEAR CREEK
11.2 MI. S. OF US 84, De Soto, LA
Built 2009 Load: 32.4 t ADT: 6,604
US0171
FairOver: S. FORK OF BRUSHY BAYOU
2.4 MI N. OF LA 5, De Soto, LA
Built 1932 Load: 32.4 t ADT: 9,866
US0171
FairOver: BRUSHY BAYOU
4.0 MI. N. OF LA 5, De Soto, LA
Built 1932 Load: 32.4 t ADT: 9,866
LA0175
FairOver: CHATMAN BAYOU RELIEF
3.5 MI NORTH OF NORTH INT, De Soto, LA
Built 1950 Load: 32.4 t ADT: 1,770
LA0175
FairOver: CHATMAN BAYOU
3.6 MI NORTH OF NORTH INT, De Soto, LA
Built 1950 Load: 32.4 t ADT: 1,770
LA0175
FairOver: CREEK
6.9 MI NORTH OF NORTH INT, De Soto, LA
Built 1936 Load: 32.4 t ADT: 1,770
LA0175
FairOver: MCGEE BAYOU
.8 MI SOUTH OF LA 5, De Soto, LA
Built 1957 Load: 32.4 t ADT: 4,027
LA0005
FairOver: CREEK
2.8 MI NORTH OF LA 3015, De Soto, LA
Built 1948 Load: 32.4 t ADT: 3,216
LA0509
FairOver: SIPHORIEN BAYOU
7.29 MI EAST OF LA 175, De Soto, LA
Built 1950 Load: 32.4 t ADT: 4,308
LA0509
FairOver: DRAIN
7.42 MI EAST OF LA 175, De Soto, LA
Built 1950 Load: 32.4 t ADT: 4,308
LA0513
FairOver: CREEK
.2 MI NORTH OF LA 483, De Soto, LA
Built 1956 Load: 32.4 t ADT: 243
LA0513
FairOver: CREEK
6.7 MI NORTH OF LA 346, De Soto, LA
Built 1962 Load: 32.4 t ADT: 243
LA0191
FairOver: PEN BAYOU
5.41 MI NORTH OF LA 481, De Soto, LA
Built 1960 Load: 32.4 t ADT: 769
Old Hammond Hwy
FairOver: LIVELY BAYOU
1 MILE N OF I-12, East Baton Rouge, LA
Built 2006 Load: 32.4 t ADT: 7,800
Ben Hur Rd
FairOver: BAYOU
0.2 M W of LA 42, East Baton Rouge, LA
Built 2000 Load: 32.4 t ADT: 7,263
LA0019
FairOver: DRAIN
0.4 M N of LA 64, East Baton Rouge, LA
Built 1988 Load: 32.4 t ADT: 11,198
US0061
FairOver: WARD'S CREEK
0.3 M N of US 61&LA 426, East Baton Rouge, LA
Built 1965 Load: 32.4 t ADT: 54,042
US0061
FairOver: WARD CREEK
0.26 M. S OF LA 37, East Baton Rouge, LA
Built 1940 Load: 32.4 t ADT: 13,549
US0061
FairOver: WARDS CREEK NB.
0.2 M W of US 61&US 190, East Baton Rouge, LA
Built 1959 Load: 32.4 t ADT: 24,979
US0190
FairOver: DRAIN
2.8 M W of US 61&US 190, East Baton Rouge, LA
Built 1958 Load: 32.4 t ADT: 24,571
LA0073
FairOver: WARD CREEK
0.63 M. E OF LA 427, East Baton Rouge, LA
Built 1960 Load: 32.4 t ADT: 22,611
Church St
FairOver: STREAM
.24 MI E of LA 964, East Baton Rouge, LA
Built 1973 Load: 32.4 t ADT: 20,800
LA3034
FairOver: BEAVER BAYOU
2.1 M W of LA 37, East Baton Rouge, LA
Built 1955 Load: 32.4 t ADT: 14,635
LA0030
FairOver: STREAM
4.0M NW of LA 42, East Baton Rouge, LA
Built 1961 Load: 32.4 t ADT: 12,779
I0010
FairOver: DRAIN
2.7 M SE of I-10&I-12, East Baton Rouge, LA
Built 1972 Load: 32.4 t ADT: 137,847
I0010
FairOver: DRAIN
.5 MI. E OF JCT LA 1248, East Baton Rouge, LA
Built 2006 Load: 32.4 t ADT: 15,061
I0010
FairOver: DRAIN
0.5 MILE EAST OF LA 1248, East Baton Rouge, LA
Built 2006 Load: 32.4 t ADT: 14,120
I0010
FairOver: DRAIN
3.0 M SE of I-10&I-12, East Baton Rouge, LA
Built 1972 Load: 32.4 t ADT: 137,847
I0010
FairOver: DRAIN
3.2 M SE of I-10&I-12, East Baton Rouge, LA
Built 1972 Load: 32.4 t ADT: 137,847
I0010
FairOver: DRAIN
0.6 M SE of I-10&LA 3246, East Baton Rouge, LA
Built 1974 Load: 32.4 t ADT: 137,847
I0010
FairOver: DRAIN
2.8 M SE of I-10&LA 3246, East Baton Rouge, LA
Built 1974 Load: 32.4 t ADT: 137,847
I0110
FairOver: NORTH DALE CANAL
1.2 M N of I-10&I-110, East Baton Rouge, LA
Built 1958 Load: 32.4 t ADT: 51,236
I0012
FairOver: DRAIN NO NAME
1.0 M E of I-10&I-12, East Baton Rouge, LA
Built 1967 Load: 32.4 t ADT: 28,013
I0012
FairOver: DRAIN
1.5 M E of I-10&I-12, East Baton Rouge, LA
Built 1967 Load: 32.4 t ADT: 28,013
I0012
FairOver: HONEYCUT BAYOU
4.4 M E of I-12&US 61, East Baton Rouge, LA
Built 1967 Load: 32.4 t ADT: 28,013
Highland Rd
FairOver: DRAINAGE CANAL
LOG MILE 00.01, East Baton Rouge, LA
Built 1948 Load: 32.4 t ADT: 10,420
Tiger Bend Rd
FairOver: CLAY CUT BAYOU
3.2 MI. NE JCT I-10 LA 42, East Baton Rouge, LA
Built 1985 Load: 32.4 t ADT: 12,730
North St
FairOver: WARDS CREEK
0.3 MI E OF N FOSTER DR, East Baton Rouge, LA
Built 1960 Load: 32.4 t ADT: 6,718
N Airway Dr
FairOver: JONES CREEK
BATON ROUGE, AIRWAY DR., East Baton Rouge, LA
Built 1970 Load: 32.4 t ADT: 1,000
Showing 3,901-3,950 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 |