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
LA0810
PoorOver: BROWN CREEK
1.30 MI EAST OF LA 4, Jackson, LA
Built 1968 Load: 18.1 t ADT: 374
Melody Dr
PoorOver: CANAL NO. 2
0.5 MI.N.OF.VETERANS, Jefferson, LA
Built 1960 Load: 18.1 t
EAST NICHOLS ST.
PoorOver: WELCH DRAINAGE CANAL
0.3 M EAST OF LA 99, Jefferson Davis, LA
Built 1983 Load: 18.1 t ADT: 500
Fenetre Rd.
PoorOver: ILE DES CANNES COULEE
.94 MI East of Tabb Rd, Lafayette, LA
Built 1983 Load: 18.1 t ADT: 200
John L. Ln
PoorOver: CREEK BRIDGE
1.5MI S OF US 190-LA 1026, Livingston, LA
Built 1978 Load: 18.1 t ADT: 550
LA0603
PoorOver: ROUNDAWAY BAYOU
5.18 MI EAST OF SOUTH INT, Madison, LA
Built 1955 Load: 18.1 t ADT: 100
FDR 508
PoorOver: EIGHTMILE CREEK
NATIONAL FOREST ROAD, Natchitoches, LA
Built 1970 Load: 18.1 t ADT: 30
LA0119
PoorOver: CREEK
6.55 MI. NORTH OF LA 8, Natchitoches, LA
Built 1968 Load: 18.1 t ADT: 189
LA0119
PoorOver: CREEK
6.59 MI. NORHT OF LA 8, Natchitoches, LA
Built 1968 Load: 18.1 t ADT: 189
Government Rd
PoorOver: CYPRESS CR.
1.46 M. E. OF LA 153 NEAR, Natchitoches, LA
Built 1965 Load: 18.1 t ADT: 152
Peoples Ave
PoorOver: DRAINAGE DITCH
0.0 MI.N.OF FLORIDA, Orleans, LA
Built 1960 Load: 18.1 t
LA0134
PoorOver: BAYOU DESAIRD
1.2 MI EAST OF US 165, Ouachita, LA
Built 1979 Load: 18.1 t ADT: 3,462
LA1204
PoorOver: KITCHEN CREEK
1.71 MI. E OF LA3225, Rapides, LA
Built 1973 Load: 18.1 t ADT: 2,440
LA0576
PoorOver: LITTLE CREEK
1.22 MI EAST OF LA 135, Richland, LA
Built 1968 Load: 18.1 t ADT: 163
Sawmill Rd
PoorOver: CREEK
0.4MI.S.OF LA.16, St. Helena, LA
Built 1964 Load: 18.1 t ADT: 700
LA0058
PoorOver: DRAINAGE CANAL
.36 MI EAST OF LA 56, Terrebonne, LA
Built 1966 Load: 18.1 t ADT: 5,194
LA0550
PoorOver: CREEK
4.12 MI NORTH OF LA 15, Union, LA
Built 1936 Load: 18.1 t ADT: 464
LA0550
PoorOver: LION CREEK
8.9 MI NORTH OF LA 15, Union, LA
Built 1950 Load: 18.1 t ADT: 464
Powell Station Rd
PoorOver: WEST FORK BAYOU
1.7 MI S OF US61, West Feliciana, LA
Built 1976 Load: 18.1 t ADT: 60
LA0126
PoorOver: SALINE BAYOU RELIEF
1.2 MI WEST OF LA 1233, Winn, LA
Built 1941 Load: 18.1 t ADT: 310
LA1234
PoorOver: DRAIN
1.76 MI NORTH OF LA 126, Winn, LA
Built 1967 Load: 18.1 t ADT: 94
Green Acres Blvd
PoorOver: TRIB. TO MACKS BAYOU
0.5 MI E OF HWY 3, Bossier, LA
Built 1979 Load: 18.5 t ADT: 120
LA0409
PoorOver: SANDY CREEK
6.7 MI. N of LA 64, East Baton Rouge, LA
Built 1979 Load: 18.5 t ADT: 3,092
Daniels St
PoorOver: BRUSHY BAYOU
0.6 M E OF LA 19, East Baton Rouge, LA
Built 1967 Load: 18.5 t ADT: 500
McCullough Rd
PoorOver: DRAINAGE BAYOU
1.6 Mi E of LA 410, East Baton Rouge, LA
Built 1967 Load: 18.5 t ADT: 1,028
LA1131
PoorOver: DRAIN
2.8 MI S OF US 90, Jefferson Davis, LA
Built 1976 Load: 18.5 t ADT: 315
BROADMORE ROAD
PoorOver: BROADMORE BAYOU
1.5 MI N of LA 380, Jefferson Davis, LA
Built 1976 Load: 18.5 t ADT: 160
GUIDRY RD.
PoorOver: BROADMORE DITCH
0.08 MI W of BROADMORE RD, Jefferson Davis, LA
Built 1973 Load: 18.5 t ADT: 100
W. Congress Rd.
PoorOver: ILE DES CANNES COULEE
0.82 Mi W of La 93, Lafayette, LA
Built 1973 Load: 18.5 t ADT: 3,160
FH 59
PoorOver: DOUBLE BRANCH
NO DATA ENTERED, Natchitoches, LA
Built 1969 Load: 18.5 t ADT: 80
LA0039
PoorOver: INNER HARBOR NAV CANAL
2.3 MI E OF I-10, Orleans, LA
Built 1957 Load: 18.5 t ADT: 47,739
Lorio Dairy Rd
PoorOver: BAYOU SERE
1.3 MI NE JCT US 190, Pointe Coupee, LA
Built 1970 Load: 18.5 t ADT: 210
LA0036
PoorOver: ABITA RIVER
0.1 M E OF LA 59, St. Tammany, LA
Built 1957 Load: 18.5 t ADT: 1,844
Up Cheerful Val Rd
PoorOver: Gales Cr
0.5 Mi N of sligo Rd, West Feliciana, LA
Built 1970 Load: 18.5 t ADT: 32
Beco Rd
PoorOver: DUCK ROOST BAYOU
0.1 M N Of LA 429, Ascension, LA
Built 1994 Load: 18.8 t ADT: 500
LA0110
PoorOver: DRAIN
1.2 MI S of US 190, Beauregard, LA
Built 1968 Load: 18.8 t ADT: 1,947
LA0157
PoorOver: BODCAU BAYOU RELIEF
3.67 MI NORTH OF LA 528, Bossier, LA
Built 1980 Load: 18.8 t ADT: 846
LA0027
PoorOver: ICWW - ELLENDERS
5.9 MI S OF LA 108, Calcasieu, LA
Built 1977 Load: 18.8 t ADT: 6,981
LA0037
PoorOver: HUBS BAYOU
0.8 M S of LA 409, East Baton Rouge, LA
Built 1972 Load: 18.8 t ADT: 9,104
Port Hudson-Pride
PoorOver: REDWOOD CREEK
2.2 MI.N-LA 64,LA 67, East Baton Rouge, LA
Built 1963 Load: 18.8 t ADT: 2,562
Pride-Baywood Rd
PoorOver: WHITTEN CREEK
6.6 MI. E. of LA 409, East Baton Rouge, LA
Built 1965 Load: 18.8 t ADT: 451
Callegan Rd
PoorOver: DRAINAGE BAYOU
3.7 MI.SW OF WHITE C, Iberville, LA
Built 1970 Load: 18.8 t ADT: 160
Clearwater Dr
PoorOver: MILLERS CANAL
0.55 MI S OF I12 ON LA 16, Livingston, LA
Built 1978 Load: 18.8 t ADT: 500
US0080
PoorOver: DORCHEAT RELIEF
.5 MI EAST OF US 371, Webster, LA
Built 1954 Load: 18.8 t ADT: 9,109
LA0159
PoorOver: KCS RR MINDEN
1.5 MI S OF US80, Webster, LA
Built 1935 Load: 18.8 t ADT: 6,459
Sid Richardson Rd
PoorOver: BAYOU BOURBEAUX
1.75 MI. SW. OF ADDI, West Baton Rouge, LA
Built 1970 Load: 18.8 t ADT: 230
I0020
PoorOver: I-20/KCS RR
0.01 MI N OF US 71, Bossier, LA
Built 1966 Load: 19.1 t ADT: 6,786
LA0789
PoorOver: CYPRESS BAYOU
2.0 MI SOUTH OF LA 169, Caddo, LA
Built 1975 Load: 19.1 t ADT: 1,504
LA0019
PoorOver: WHITE BAYOU
1.28 MI N OF LA 64, East Baton Rouge, LA
Built 1951 Load: 19.1 t ADT: 11,198
Pinewood Dr
PoorOver: BEAVER BAYOU
2.5 MI N. of Denham Rd, East Baton Rouge, LA
Built 1980 Load: 19.1 t ADT: 144
Showing 11,751-11,800 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 |