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
US0167
FairOver: RED RIVER/GREER ST
.1 MI. N OF INT LA1, Rapides, LA
Built 1992 Load: 22.4 t ADT: 29,200
Esperanza Rd
FairOver: GRAND BAYOU
1.9 M NE OF US 71, Red River, LA
Built 1991 Load: 22.4 t ADT: 207
E Stephenville Rd
FairOver: MILHOMME BAYOU
1.4 Mi NE of La 70, St. Martin, LA
Built 2001 Load: 22.4 t ADT: 756
US0190-B
FairOver: CREEK
1.2 M W OF LA 21, St. Tammany, LA
Built 1933 Load: 22.4 t ADT: 10,183
KENNY STREET
FairOver: ST LOUIS CANAL
0.2 MI E OF BROADMOOR AVE, Terrebonne, LA
Built 1976 Load: 22.4 t ADT: 1,471
Willis Ave.
FairOver: BOGUE LUSA CREEK
.5 MI. W OF HWY. 60, Washington, LA
Built 1962 Load: 22.4 t ADT: 15,320
LA0156
FairOver: LITTLE KIESCHE CREEK
7.02 MI. EAST OF LA 1233, Winn, LA
Built 1952 Load: 22.4 t ADT: 525
LA0156
FairOver: BIG KIESCHE
4.75 MI EAST OF LA 501, Winn, LA
Built 1952 Load: 22.4 t ADT: 1,582
Gum Springs
FairOver: COULEY CREEK
APP. 1 MI. NORTH OF US 84, Winn, LA
Built 1970 Load: 22.4 t ADT: 250
LA0013
FairOver: CREEK
1.8 Mi N of La 370, Acadia, LA
Built 1962 Load: 22.7 t ADT: 5,613
LA0013
FairOver: BAYOU MALLET
.6 MI. SOUTH OF LA 3116, Acadia, LA
Built 1960 Load: 22.7 t ADT: 5,613
LA0035
FairOver: BAYOU WIKOFF
2.3 MI NORTH OF LA 98, Acadia, LA
Built 1965 Load: 22.7 t ADT: 4,777
LA0368
FairOver: B DES CANNES
1.59 MI EAST OF LA 97, Acadia, LA
Built 1954 Load: 22.7 t ADT: 598
LA0012
FairOver: CREEK
4.0 MI E of LA 27, Beauregard, LA
Built 1961 Load: 22.7 t ADT: 4,041
US0190
FairOver: TROUT CREEK
4.4 MI E of LA 111, Beauregard, LA
Built 1964 Load: 22.7 t ADT: 3,187
US0190
FairOver: COWPEN CREEK
0.07 MI E of LA 3226, Beauregard, LA
Built 1964 Load: 22.7 t ADT: 5,903
LA0027
FairOver: DRY CREEK
6.17 MI. NORTH OF LA 12, Beauregard, LA
Built 1954 Load: 22.7 t ADT: 4,695
US0080
FairOver: RED RIVER @ TEXAS ST.
.01 MI EAST OF LA 1, Bossier, LA
Built 1934 Load: 22.7 t ADT: 11,856
Chandler Rd
FairOver: FiFi Bayou Trib
0.2 MI SOUTH OF US 80, Bossier, LA
Built 2000 Load: 22.7 t ADT: 1,200
Ivan Lake Rd
FairOver: Ivan Lake
0.7 MI N OF HWY 160, Bossier, LA
Built 1989 Load: 22.7 t ADT: 140
LAKESHORE DRIVE
FairOver: TRIB TO CROSS LAKE
1.6 MI W OF LA173, Caddo, LA
Built 1960 Load: 22.7 t ADT: 7,168
W. SALE RD
FairOver: CONTRABAND BAYOU
0.9 MI W. OF LA 385, Calcasieu, LA
Built 1990 Load: 22.7 t ADT: 14,015
LA0512
FairOver: BA SAN PATRICIO R
2.50 MI EAST OF LA 171, De Soto, LA
Built 1957 Load: 22.7 t ADT: 215
Milldale Rd
FairOver: LITTLE SANDY CREEK
2.6 MI. SW. OF PRIDE, East Baton Rouge, LA
Built 1959 Load: 22.7 t ADT: 377
LA0580
FairOver: JOES BAYOU
.01 MI WEST OF LA 877, East Carroll, LA
Built 1958 Load: 22.7 t ADT: 448
LA0010
FairOver: SPRING BRANCH
6.9 Mi. E of LA 961, East Feliciana, LA
Built 1963 Load: 22.7 t ADT: 2,534
LA0106
FairOver: BOGGY BAYOU
6.47 MI WEST OF LA 10, Evangeline, LA
Built 1960 Load: 22.7 t ADT: 1,247
LA0748
FairOver: BAYOU
1.39 MI EAST OF LA 1169, Evangeline, LA
Built 1939 Load: 22.7 t ADT: 1,397
LA3042
FairOver: LAKE CHICOT
4.93 MI NORTH OF US 167, Evangeline, LA
Built 1959 Load: 22.7 t ADT: 2,684
LA3187
FairOver: THIBS CUT
1.5 MI NW JCT LA 13, Evangeline, LA
Built 1984 Load: 22.7 t ADT: 89
Rayford Ln.
FairOver: DURALDGE BAYOU
1.48 MI S of Rodnis Rd, Evangeline, LA
Built 1965 Load: 22.7 t ADT: 44
LA0086
FairOver: DRAINAGE CANAL
0.91 MI WEST OF LA 347, Iberia, LA
Built 1980 Load: 22.7 t ADT: 3,834
US0090-B
FairOver: OFF RAMP OVER WHITNEY AV
1.2 MI WEST OF LA 23, Jefferson, LA
Built 1987 Load: 22.7 t ADT: 15,955
MANHATTAN BLVD
FairOver: BAYOU FATMA
0.5 MI S. OF LAPALCO BLVD, Jefferson, LA
Built 1988 Load: 22.7 t ADT: 2,000
MILLER OILFIELD RD
FairOver: GULLY
1.1 MI E of LA 101, Jefferson Davis, LA
Built 1981 Load: 22.7 t ADT: 50
FREELAND ROAD
FairOver: BAYOU
0.6 MI S of MARCANTEL RD, Jefferson Davis, LA
Built 1975 Load: 22.7 t ADT: 60
US0084
FairOver: HAIRS CREEK
1.4 MI EAST OF LA 127, LaSalle, LA
Built 1960 Load: 22.7 t ADT: 3,980
US0080
FairOver: CREEK
1.0 MI EAST OF LA 563, Lincoln, LA
Built 1952 Load: 22.7 t ADT: 2,471
LA0822
FairOver: CREEK
3.45 MI EAST OF US 167, Lincoln, LA
Built 1953 Load: 22.7 t ADT: 1,568
SHADY GROVE RD
FairOver: WILSON CREEK
5 MI SW OF SIMMSBORO, Lincoln, LA
Built 1978 Load: 22.7 t ADT: 15
LA0447
FairOver: FELDER BAYOU
3.0 M N OF LA 16, Livingston, LA
Built 1962 Load: 22.7 t ADT: 34,245
Whit Holden Rd
FairOver: DUMPLIN CREEK
1.2 MILES FROM JCT 1027, Livingston, LA
Built 1965 Load: 22.7 t ADT: 150
US0065
FairOver: BAYOU VIDAL
.1 MI SOUTH OF LA 603, Madison, LA
Built 1963 Load: 22.7 t ADT: 2,374
US0065
FairOver: ALLIGATOR BAYOU
4.4 MI NORTH OF SOUTH INT, Madison, LA
Built 1963 Load: 22.7 t ADT: 2,098
US0065
FairOver: ROUNDAWAY BAYOU
1.5 MI NORTH OF NORTH INT, Madison, LA
Built 1963 Load: 22.7 t ADT: 2,192
COW BAYOU RD
FairOver: COW BAYOU
0.7 MI S of US 80, Madison, LA
Built 1992 Load: 22.7 t ADT: 130
LA0494
FairOver: CREEK
1.52 MI. E OF INT LA1, Natchitoches, LA
Built 1963 Load: 22.7 t ADT: 726
A. TOUSSAINT BLVD
FairOver: BAYOU ST. JOHN
.6 MI S OF LAKESHORE, Orleans, LA
Built 1963 Load: 22.7 t
REDWOOD DR
FairOver: HARRISON CREEK
NORTHSIDE OF MONROE, Ouachita, LA
Built 1962 Load: 22.7 t ADT: 750
LA0134
FairOver: BEOUF RIVER
2.1 MI WEST OF LA 583, Richland, LA
Built 1967 Load: 22.7 t ADT: 540
Showing 2,351-2,400 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 |