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
E BEAR LAKE RD #1
FairOver: LITTLE TENSAS BAYOU
2.3 MI W of US 65, Madison, LA
Built 1994 Load: 74.5 t ADT: 220
US0425
FairOver: CREEK
1.0 MI N RICHLAND PAR LN, Morehouse, LA
Built 1971 Load: 74.5 t ADT: 1,954
LA0487
FairOver: DRAIN
3.45 M N OF LA 120, Natchitoches, LA
Built 1989 Load: 74.5 t ADT: 968
I0049
FairOver: DRAINAGE DITCH
1.10 MI NORTH OF LA 119, Natchitoches, LA
Built 1986 Load: 74.5 t ADT: 18,305
Spurgeon Rd
FairOver: JOWERS CREEK
0.2 MILES WEST OF LA 490, Natchitoches, LA
Built 1997 Load: 74.5 t ADT: 22
Goldonna Rd
FairOver: SALINE LAKE TRIBUTARY
2.33 M. NE OF END LA 1226, Natchitoches, LA
Built 1997 Load: 74.5 t ADT: 233
Lake Forest BLVD
FairOver: JAHNCKE CANAL
3 MILES WEST OF I-510, Orleans, LA
Built 1985 Load: 74.5 t
INDUSTRIAL PARKWAY
FairOver: PATRICK CREEK
0.5 MILES WEST OF CHENIER, Ouachita, LA
Built 1995 Load: 74.5 t ADT: 1,239
LA0554
FairOver: DRAIN
0.7 MI E of US 165, Ouachita, LA
Built 1985 Load: 74.5 t ADT: 495
LA0841
FairOver: BAYOU
LA 841, Ouachita, LA
Built 1979 Load: 74.5 t ADT: 2,036
CHARLIE GRIGGS RD
FairOver: DRAIN TO LAPINE BAYOU
0.61 MI SE of LA 548, Ouachita, LA
Built 1996 Load: 74.5 t ADT: 106
JOHN TURNER RD
FairOver: MILL BAYOU
0.1 MI E of LA 134, Ouachita, LA
Built 1996 Load: 74.5 t ADT: 93
Normady Rd
FairOver: BLACK BAYOU
3.4 M S OF BATCHELOR, Pointe Coupee, LA
Built 1989 Load: 74.5 t ADT: 159
LA0465
FairOver: CREEK
2.35 MI. WEST OF LA 121, Rapides, LA
Built 2009 Load: 74.5 t ADT: 472
US0071
FairOver: DRAINAGE DITCH
0.39 MI. NORTH OF LA 3170, Rapides, LA
Built 1973 Load: 74.5 t ADT: 5,157
LA0113
FairOver: CREEK
0.2 MI. EAST OF LA 462, Rapides, LA
Built 1994 Load: 74.5 t ADT: 822
LA0112
FairOver: CREEK
2.09 MI. NORTH OF LA 462, Rapides, LA
Built 1981 Load: 74.5 t ADT: 1,197
LA0112
FairOver: CREEK
2.73 MI. NORTH OF LA 462, Rapides, LA
Built 1981 Load: 74.5 t ADT: 1,197
LA1206
FairOver: ISLAND BAYOU
4.68 MI. EAST OF LA 115, Rapides, LA
Built 1998 Load: 74.5 t ADT: 1,042
Blue Lake Rd
FairOver: CHENEY CREEK
3.34 MILES SE OF LA 497, Rapides, LA
Built 1991 Load: 74.5 t ADT: 120
Hooper Rd
FairOver: HORSEPEN CREEK RELIEF
2.3 M. N. OF B. MILLER RO, Rapides, LA
Built 1984 Load: 74.5 t ADT: 250
Gunter Rd
FairOver: HAINES CREEK
2.01 MI. SOUTH OF LA 28, Rapides, LA
Built 1990 Load: 74.5 t ADT: 460
Barron Chapel Rd
FairOver: DYSON CREEK
0.52 MI. SOUTH OF LA 28, Rapides, LA
Built 1990 Load: 74.5 t ADT: 550
Dupree Rd
FairOver: COUSHATTA BAYOU TRIB.
0.6 MI. WEST OF US 71, Red River, LA
Built 1986 Load: 74.5 t ADT: 32
Rawls Road
FairOver: TRIBUTARY TO BLACK BAYOU
0.5 MI E OF LA 507, Red River, LA
Built 1997 Load: 74.5 t ADT: 400
FERGUSON RD
FairOver: ASH SLOUGH
LOGMI 8.97 FR 1DE TO, Richland, LA
Built 1984 Load: 74.5 t ADT: 100
MOORE RD
FairOver: STEEP BAYOU
2.5 MI NE of LA 133, Richland, LA
Built 2002 Load: 74.5 t ADT: 50
FRANCIS ST
FairOver: LITTLE CREEK
0.2 MI W of US 425, Richland, LA
Built 1991 Load: 74.5 t ADT: 250
LA0191
FairOver: AUGUSTINE BAR CREEK
08434320155501, Sabine, LA
Built 1970 Load: 74.5 t ADT: 610
N TOLEDOBEND RD
FairOver: N. TOLEDO PARK TRIB
1.92 MI. WEST OF LA 191, Sabine, LA
Built 1989 Load: 74.5 t ADT: 180
LA0448
FairOver: CREEK
1.1 M N OF LA 37, St. Helena, LA
Built 1962 Load: 74.5 t ADT: 547
LA0016
FairOver: DRAIN
3.0 WEST OF LA 449 INTER, St. Helena, LA
Built 1997 Load: 74.5 t ADT: 4,844
LA0016
FairOver: BEAR CREEK
5.6M EAST OF LA 449, St. Helena, LA
Built 1991 Load: 74.5 t ADT: 3,959
Newman Rd
FairOver: DAY BRANCH CREEK PIPE
3.6 MI N. OF HWY. 38, St. Helena, LA
Built 1998 Load: 74.5 t ADT: 100
LA3127
FairOver: BAYOU VERRET
1.1 M EAST OF LA 70&3127, St. James, LA
Built 1988 Load: 74.5 t ADT: 6,703
I0010
FairOver: Drain
0.10 Mi. E. of LA 3188, St. John the Baptist, LA
Built 1984 Load: 74.5 t ADT: 27,372
I0010
FairOver: Drain
0.75 Mi. E. of LA 3188, St. John the Baptist, LA
Built 1984 Load: 74.5 t ADT: 27,372
US0071
FairOver: BAYOU PETITE PRAIRIE
0.01 MI NW OF LA 361, St. Landry, LA
Built 1954 Load: 74.5 t ADT: 2,628
LA0178
FairOver: BAYOU BOURBEAUX
0.45 MI W of LA 182, St. Landry, LA
Built 1963 Load: 74.5 t ADT: 1,619
LA0367
FairOver: CANAL
1.1 MI S of US 190, St. Landry, LA
Built 1981 Load: 74.5 t ADT: 2,054
LA0754
FairOver: BAYOU WIKOFF
1.3 MI E of LA 1104, St. Landry, LA
Built 1964 Load: 74.5 t ADT: 2,371
LA0754
FairOver: DRAINAGE CANAL
2.8 MI E of LA 1104, St. Landry, LA
Built 1964 Load: 74.5 t ADT: 2,371
LA0754
FairOver: DRAINAGE CANAL
3.1 W of LA 182, St. Landry, LA
Built 1964 Load: 74.5 t ADT: 2,371
LA0754
FairOver: BAYOU BOURBEAUX
1.1 MI W of LA 182, St. Landry, LA
Built 1964 Load: 74.5 t ADT: 2,371
LA0358
FairOver: DRAINAGE CANAL
0.51 MI. EAST OF LA 357, St. Landry, LA
Built 1964 Load: 74.5 t ADT: 1,696
Bourque Rd
FairOver: Drainage Ditch
0.3 Mi. S. of La 759, St. Landry, LA
Built 1992 Load: 74.5 t ADT: 275
O.G. Track Rd.
FairOver: Bayou Saquette
2.5 Mi. E. of La 103, St. Landry, LA
Built 1994 Load: 74.5 t ADT: 125
US0090
FairOver: BAYOU PATTERSON
8.3 MI West of LA 182, St. Mary, LA
Built 1964 Load: 74.5 t ADT: 10,035
BRICKER ROAD
FairOver: CANAL
0.4 MILES N OF LA. 1085, St. Tammany, LA
Built 1985 Load: 74.5 t ADT: 100
LA0041
FairOver: DRAIN
2.6 M N OF LA 435, St. Tammany, LA
Built 1972 Load: 74.5 t ADT: 3,043
Showing 6,601-6,650 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 |