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
Winfield Rd
PoorOver: Fifi Bayou
3.4M WEST OF LA 157, Bossier, LA
Built 1993 Load: 14.5 t ADT: 380
LA0126
PoorOver: BRIDGE CREEK
0.5 MILES SOUTH OF JCT. L, Caldwell, LA
Built 1953 Load: 14.5 t ADT: 1,092
Boyd Rd
PoorOver: HURRICANE CREEK
2.2 MILES NW OF LA 19, East Feliciana, LA
Built 1980 Load: 14.5 t ADT: 6
LA0146
PoorOver: CREEK
.5 MI SOUTH OF LA 145, Jackson, LA
Built 1951 Load: 14.5 t ADT: 882
Forest Rd
PoorOver: LYLES CREEK
2.9 MILES NW OF LA 118, Natchitoches, LA
Built 1970 Load: 14.5 t ADT: 32
LA0135
PoorOver: LITTLE CREEK
.5 MI NORTH OF LA 132, Richland, LA
Built 1962 Load: 14.5 t ADT: 1,260
LA0583
PoorOver: BEE BAYOU
.1 MI SOUTH OF US 80, Richland, LA
Built 1954 Load: 14.5 t ADT: 1,108
V. Lambert Rd
PoorOver: CREEK
3 MI NE OF JCT 1061, Tangipahoa, LA
Built 1975 Load: 14.5 t ADT: 97
LA0082
PoorOver: CREEK
1.97 MI N. OF LA 14, Vermilion, LA
Built 1960 Load: 14.5 t ADT: 2,899
Hudson St
PoorOver: COBURN CREEK
.1 MI. N OF HWY. 10, Washington, LA
Built 1970 Load: 14.5 t ADT: 703
LA0161
PoorOver: LITTLE CORNEY BAYOU
3.82 MI EAST OF LA 2 ALT, Claiborne, LA
Built 1980 Load: 14.6 t ADT: 836
LA0073
PoorOver: BAYOU MANCHAC
0.68 MI N OF LA 427, East Baton Rouge, LA
Built 1931 Load: 14.6 t ADT: 9,615
LA0963
PoorOver: LITTLE REDWOOD CR
0.07 M W of LA 963, East Feliciana, LA
Built 1958 Load: 14.6 t ADT: 905
Shady Grove Rd
PoorOver: MIDDLE CREEK
1.25 MI. EAST OF LA 117, Natchitoches, LA
Built 1983 Load: 14.6 t ADT: 92
LA0037
PoorOver: CREEK
0.2 M SW OF LA 10, St. Helena, LA
Built 1960 Load: 14.6 t ADT: 2,894
LA0182
PoorOver: BAYOU TERREBONNE
.1 MI EAST OF LA 24 WEST, Terrebonne, LA
Built 1968 Load: 14.6 t ADT: 9,001
Charlie Arceneaux
PoorOver: Wikoff Bayou
1.54 MI EAST OF LA 35, Acadia, LA
Built 2011 Load: 14.7 t ADT: 48
E. Lewiston Rd
PoorOver: WILSON BRANCH
3.7 MI NE OF JCT 38, Tangipahoa, LA
Built 1970 Load: 14.7 t ADT: 55
LA0126
PoorOver: LITTLE KIESCHE CREEK
2.62 MI. EAST OF US 167, Winn, LA
Built 1974 Load: 14.7 t ADT: 687
Bobby Gaspard Xing
PoorOver: BAYOU DES GLAISES
0.01 MI. EAST OF LA 451, Avoyelles, LA
Built 1987 Load: 14.8 t ADT: 100
Milton Rd
PoorOver: BEAVER BRANCH
3.7 MI NW OF EXIT 44, Livingston, LA
Built 1975 Load: 14.8 t ADT: 300
RUFFIN DR
PoorOver: PINE BAYOU
0.4 Mi. EAST of US 165, Ouachita, LA
Built 1972 Load: 14.8 t ADT: 300
SOUTH ST
PoorOver: COULEE
0.004 MI W OF DEADWOOD RD, Terrebonne, LA
Built 1960 Load: 14.8 t ADT: 135
Nursery Rd
PoorOver: BRUSHY CREEK
0.8 MI SW OF HWY 531, Webster, LA
Built 1978 Load: 14.8 t ADT: 928
Joe Sevario Rd
PoorOver: Henderson Bayou
0.1 Mi S. of LA 933, Ascension, LA
Built 1969 Load: 14.9 t ADT: 700
LA0070
PoorOver: PIERRE PASS
3.0 MILES N. OF LA 101, Assumption, LA
Built 1967 Load: 14.9 t ADT: 5,560
LA0789
PoorOver: SPRING BRANCH
3.35 MI SOUTH OF LA 169, Caddo, LA
Built 1971 Load: 14.9 t ADT: 1,504
FLOYD LITTLE RD.
PoorOver: LULU CANAL
0.2 MI. W of LA 390, Cameron, LA
Built 1964 Load: 14.9 t ADT: 109
LA0521
PoorOver: LITTLE INDIAN CREEK
5.2 MI NORTH OF LA 2, Claiborne, LA
Built 1973 Load: 14.9 t ADT: 409
FDR 120
PoorOver: PANTHER BAYOU
NO DATA ENTERED, Grant, LA
Built 1981 Load: 14.9 t ADT: 15
FDR 120
PoorOver: CANEY BRANCH
NO DATA ENTERED, Grant, LA
Built 1981 Load: 14.9 t ADT: 15
FDR 120
PoorOver: S.FORK SADDLE BAYOU
NO DATA ENTERED, Grant, LA
Built 1982 Load: 14.9 t ADT: 17
SILOAM CHURCH RD
PoorOver: DRY CREEK
.57 MI EAST OF LA 505, Jackson, LA
Built 1957 Load: 14.9 t ADT: 825
LA0081
PoorOver: BAYOU BLACK
1.9 Mi. W. of LA 976, Pointe Coupee, LA
Built 1969 Load: 14.9 t ADT: 231
LA0151
PoorOver: STOWE CR REL BR
.1 MI EAST OF LA 33, Union, LA
Built 1961 Load: 14.9 t ADT: 527
FDR 400
PoorOver: DRAKES CREEK
9.6 MI. ENE. OF ROSPINE, Vernon, LA
Built 1982 Load: 14.9 t ADT: 60
LA0159
PoorOver: CANEY CREEK
4.39 MI NORTH OF LA 79, Webster, LA
Built 1970 Load: 14.9 t ADT: 1,645
LA0431
PoorOver: VILLAR CANAL
0.2 M S of LA 42, Ascension, LA
Built 1971 Load: 15.2 t ADT: 9,608
LA0501
PoorOver: CREEK
1.90 MI SOUTH OF LA 4, Bienville, LA
Built 1960 Load: 15.2 t ADT: 318
I0020
PoorOver: ST. LOUIS & SW RR
.2 MI EAST OF LA 1, Caddo, LA
Built 1965 Load: 15.2 t ADT: 84,672
Coulee Rd.
PoorOver: Peebles Coulee
0.2 Mi. E. of La 83, Iberia, LA
Built 1970 Load: 15.2 t ADT: 180
LA0995
PoorOver: FALSE BRANCH
0.5 M E of LA 69, Iberville, LA
Built 1964 Load: 15.2 t ADT: 196
NEW COMER RD.
PoorOver: CREEK
0.7 MI E of LA 383, Jefferson Davis, LA
Built 1971 Load: 15.2 t ADT: 40
Gloria Switch Rd
PoorOver: COULEE
1.04 MI EAST OF LA 728, Lafayette, LA
Built 1983 Load: 15.2 t ADT: 8,240
LA0742
PoorOver: LITTLE BAYOU TECHE
0.5 MI WEST OF LA 31, St. Landry, LA
Built 1971 Load: 15.2 t ADT: 1,741
Lost Cayou Rd
PoorOver: DRAINAGE CANAL
0.52 Mi N of US 190, St. Landry, LA
Built 1960 Load: 15.2 t ADT: 100
MOFFET RD
PoorOver: CHAUVIN BAYOU
0057 LOG MI FROM IN, Terrebonne, LA
Built 1979 Load: 15.2 t ADT: 5,123
Ellis Bridge Rd
PoorOver: COULEE
1 Mi W of la 91, Vermilion, LA
Built 1960 Load: 15.2 t ADT: 160
Voorhies Ln
PoorOver: BAYOU ROSEAU DR. CANAL
0.10 MI. WEST OF LA 451, Avoyelles, LA
Built 1984 Load: 15.4 t ADT: 150
Hood Rd
PoorOver: COLYELL CREEK
10.7 MI SE OF LA 447, Livingston, LA
Built 1960 Load: 15.4 t ADT: 300
Showing 11,551-11,600 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 |