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
LA0156
FairOver: BAYOU TERRY
1.1 MI. E OF INT LA9, Natchitoches, LA
Built 1956 Load: 32.4 t ADT: 825
LA0156
FairOver: CREEK
5.9 MI. E OF INT LA9, Natchitoches, LA
Built 1926 Load: 32.4 t ADT: 597
LA0118
FairOver: CREEK
.92 MI. E OF INT LA117, Natchitoches, LA
Built 1968 Load: 32.4 t ADT: 164
US0090
FairOver: DRAIN CANAL
9.9 MI NORTH OF I-10, Orleans, LA
Built 1965 Load: 32.4 t ADT: 1,215
Pace BLVD
FairOver: MAGELLAN CANAL
0.2MI.N.OF WALL BLVD, Orleans, LA
Built 1960 Load: 32.4 t
US0080
FairOver: CURRY CREEK
.1 MI WEST OF I-20, Ouachita, LA
Built 1960 Load: 32.4 t ADT: 3,275
US0165
FairOver: CANAL
.5 MI NORTH OF LA 840-6, Ouachita, LA
Built 1975 Load: 32.4 t ADT: 29,759
LA0546
FairOver: GUYTON CREEK
.68 MI NORTH OF LA 34, Ouachita, LA
Built 1926 Load: 32.4 t ADT: 1,350
LA0594
FairOver: YOUNGS BAYOU
.2 MI EAST OF I-20, Ouachita, LA
Built 1922 Load: 32.4 t ADT: 8,579
LA0594
FairOver: CANAL
2.51 MI E of LA 15, Ouachita, LA
Built 1987 Load: 32.4 t ADT: 8,579
LA0594
FairOver: CANAL
2.92 MI E of LA 15, Ouachita, LA
Built 1987 Load: 32.4 t ADT: 8,579
LA5941
FairOver: BENNET BAYOU
6.59 MI E of LA 15, Ouachita, LA
Built 1998 Load: 32.4 t ADT: 8,579
I0020
FairOver: CURRY CREEK
.4 MI WEST OF LA 151, Ouachita, LA
Built 1960 Load: 32.4 t ADT: 40,857
I0020
FairOver: CREEK
1.9 MI EAST OF LA 151, Ouachita, LA
Built 1960 Load: 32.4 t ADT: 40,857
I0020
FairOver: BROWNLEE CREEK
.8 MI EAST OF US 80, Ouachita, LA
Built 1964 Load: 32.4 t ADT: 40,857
I0020
FairOver: CREEK
.8 MI EAST OF US 80, Ouachita, LA
Built 1964 Load: 32.4 t ADT: 40,857
I0020
FairOver: PATRICK CREEK
3.1 MI EAST OF US 80, Ouachita, LA
Built 1964 Load: 32.4 t ADT: 40,857
I0020
FairOver: CREEK
3.1 MI EAST OF US 80, Ouachita, LA
Built 1964 Load: 32.4 t ADT: 40,857
I0020
FairOver: CREEK
4.4 MI EAST OF US 80, Ouachita, LA
Built 1964 Load: 32.4 t ADT: 40,857
I0020
FairOver: CREEK
4.4 MI EAST OF US 80, Ouachita, LA
Built 1964 Load: 32.4 t ADT: 40,857
I0020
FairOver: STEEP BAYOU
1.6 MI EAST OF LA 546, Ouachita, LA
Built 1963 Load: 32.4 t ADT: 61,935
I0020
FairOver: E YOUNGS BAYOU
.3 MI EAST OF US 165, Ouachita, LA
Built 1965 Load: 32.4 t ADT: 84,225
I0020
FairOver: GOURD BAYOU
7.1 MI EAST OF US 165, Ouachita, LA
Built 1968 Load: 32.4 t ADT: 43,420
LA0617
FairOver: DRAINAGE CANAL
1.65 MI NORTH OF I-20, Ouachita, LA
Built 1981 Load: 32.4 t ADT: 26,528
BASCO LANE
FairOver: CALLOWAY DITCH
1.62 MI E of US 165 S, Ouachita, LA
Built 2005 Load: 32.4 t ADT: 75
DOWNING PINES RD
FairOver: CREEK
0.26 MI SW of I-20, Ouachita, LA
Built 2002 Load: 32.4 t
MANE ST
FairOver: HORSE CREEK
0.15 MI SW of I-20, Ouachita, LA
Built 2000 Load: 32.4 t
STUBBS AVE
FairOver: WEST PRONG YOUNGS BAYOU
STUBBS ST MONROE, Ouachita, LA
Built 1962 Load: 32.4 t ADT: 1,200
WASHINGTON ST
FairOver: DRAINAGE CANAL
WASHINGTON ST. MONRO, Ouachita, LA
Built 1974 Load: 32.4 t ADT: 2,000
LA0010
FairOver: RAILROAD
4.1 MILES EAST OF LA 1 AT, Pointe Coupee, LA
Built 2010 Load: 32.4 t ADT: 5,763
US0190
FairOver: STREAM NO NAME
1.06 M W of LA 1 @ US 190, Pointe Coupee, LA
Built 1952 Load: 32.4 t ADT: 14,467
US0190
FairOver: BAYOU TOMMY
US0190, Pointe Coupee, LA
Built 1951 Load: 32.4 t ADT: 20,176
US0190
FairOver: STREAM
1.82 M W of LA 77, Pointe Coupee, LA
Built 1933 Load: 32.4 t ADT: 13,660
US0190
FairOver: STREAM
3.66 M W of LA 77@US 190, Pointe Coupee, LA
Built 1933 Load: 32.4 t ADT: 13,717
US0190
FairOver: STREAM
2.85 M W of LA 77@US 190, Pointe Coupee, LA
Built 1933 Load: 32.4 t ADT: 13,717
LA0001
FairOver: BAYOU FISHER
0.5 M N of Lettsworth, Pointe Coupee, LA
Built 1936 Load: 32.4 t ADT: 3,698
LA0077
FairOver: STREAM
0.05 M N of LA 19, Pointe Coupee, LA
Built 1923 Load: 32.4 t ADT: 4,376
Gremillion Rd
FairOver: BAYOU TOMMY
.4 MI NE OF LIVONIA, Pointe Coupee, LA
Built 1999 Load: 32.4 t ADT: 657
SUSEK DR
FairOver: BAYOU MARIA TRIB. #1
0.74 MI. EAST OF LA 3144, Rapides, LA
Built 2011 Load: 32.4 t ADT: 4,200
US0071
FairOver: BAYOU RAPIDES
0.17 MI. NORTH OF LA 496, Rapides, LA
Built 1944 Load: 32.4 t ADT: 42,243
US0165
FairOver: DIVERSION CANAL
1.06 M S OF TRAFFIC CIRCL, Rapides, LA
Built 1944 Load: 32.4 t ADT: 10,946
LA0121
FairOver: BURNEY BRANCH
0.94 MI. SOUTH OF LA 28, Rapides, LA
Built 1929 Load: 32.4 t ADT: 2,368
LA0028
FairOver: CLEAR RUN CREEK
0.84 MI. EAST OF US 167, Rapides, LA
Built 1971 Load: 32.4 t ADT: 14,124
LA0028
FairOver: CREEK
0.49 MI. EAST OF LA 1207, Rapides, LA
Built 1931 Load: 32.4 t ADT: 5,615
LA0028
FairOver: CREEK
0.79 MI. EAST OF LA 1207, Rapides, LA
Built 1931 Load: 32.4 t ADT: 5,615
LA0028
FairOver: WATERS CREEK
2.19 MI. EAST OF LA 1207, Rapides, LA
Built 1931 Load: 32.4 t ADT: 5,615
LA0112
FairOver: CREEK
2.52 MI. SOUTH OF LA 462, Rapides, LA
Built 1960 Load: 32.4 t ADT: 1,197
LA0488
FairOver: DITCH
.64 MI. E OF LA1199, Rapides, LA
Built 1958 Load: 32.4 t ADT: 2,343
LA0028
FairOver: KINCAID LAKE
2.4 M. E OF E JCT. LA 121, Rapides, LA
Built 1944 Load: 32.4 t ADT: 9,482
I0049
FairOver: CHERRY CREEK
5.1 MI. N OF LA8, Rapides, LA
Built 1984 Load: 32.4 t ADT: 11,969
Showing 4,101-4,150 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 |