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
Sidney Leblanc Rd
FairOver: Peebles Coulee
0.5 Mi. E. of La 83, Iberia, LA
Built 1968 Load: 14.3 t ADT: 62
Bayou Paul Rd
FairOver: BAYOU PAUL
4.1 MI.NE OF ST.GABR, Iberville, LA
Built 1972 Load: 14.3 t ADT: 160
PINE ST
FairOver: PINE ST.AND TENTH ST.INT
INT. OF PINE AND TEN, Ouachita, LA
Built 1970 Load: 14.3 t ADT: 1,000
University St
FairOver: Chatlin Lake Canal
UNIVERSITY STREET, ALEXAN, Rapides, LA
Built 1984 Load: 14.3 t ADT: 2,000
LA0507
FairOver: GRAND BAYOU
1.73 MI NORTH OF US 71, Red River, LA
Built 1972 Load: 14.3 t ADT: 691
OVERLAND STAGE RD
FairOver: CREEK
0.64 MI. W. OF LA 133, Richland, LA
Built 1935 Load: 14.3 t ADT: 163
Country Ridge Rd.
FairOver: Coulee Rouge
0.40 Mi E of LA 31, St. Landry, LA
Built 2007 Load: 14.3 t ADT: 25
Pickett Rd
FairOver: YOUNGS COULEE
1.19 M. W of LA 339, Vermilion, LA
Built 1974 Load: 14.3 t ADT: 500
LA3042
FairOver: BAYOU
0.2 Mi. South of LA 106, Evangeline, LA
Built 1962 Load: 14.5 t ADT: 2,684
LA0004
FairOver: CREEK
3.12 MI EAST OF LA 34, Jackson, LA
Built 1952 Load: 14.5 t ADT: 897
RAILROAD STREET
FairOver: DRAIN
.3 Mi S of LA 182, Lafayette, LA
Built 2016 Load: 14.5 t ADT: 200
Waggoner Tap Rd
FairOver: DRAKE CREEK
1mi N of River Bottom RD, LaSalle, LA
Built 1970 Load: 14.5 t ADT: 100
Courtney Rd
FairOver: MIDDLE COLYELL CREEK
5.2 MILES NORTHEAST OF LA, Livingston, LA
Built 2010 Load: 14.5 t ADT: 350
Henry White Rd
FairOver: BLOOD RIVER
3.5 MILES NORTHWEST OF LA, Livingston, LA
Built 2010 Load: 14.5 t ADT: 200
LA1032
FairOver: GRAYS CREEK
LA1032, Livingston, LA
Built 1956 Load: 14.5 t ADT: 9,267
Robbie Lee Rd
FairOver: BEVER CREEK
4.2 MI W OF JCT 447&1024, Livingston, LA
Built 1995 Load: 14.5 t ADT: 250
Mary Kinchen Rd
FairOver: CREEK
2.3 MI.SW OF JCT 442 & 43, Livingston, LA
Built 1980 Load: 14.5 t ADT: 150
MURL ST
FairOver: MAGELLAN CANAL
0.3MI.SOUTH OF LA.42, Orleans, LA
Built 1970 Load: 14.5 t
LA0134
FairOver: CREEK
1.5 MI EAST OF LA 583, Richland, LA
Built 1957 Load: 14.5 t ADT: 473
LA0038
FairOver: CREEK
0.3 M E OF LA 432, St. Helena, LA
Built 1954 Load: 14.5 t ADT: 933
LA3361
FairOver: TECHE BAYOU
0.1 Mi. E of LA 31, St. Martin, LA
Built 1951 Load: 14.5 t ADT: 6,798
LA0322
FairOver: BAYOU TECHE
0.09 MI WEST OF LA 87, St. Mary, LA
Built 1971 Load: 14.5 t ADT: 1,004
LA0438
FairOver: DRAIN
0.3 M W OF LA 25, Washington, LA
Built 1967 Load: 14.5 t ADT: 666
LA0577
FairOver: CREEK
3.1 MI EAST OF LA 585, West Carroll, LA
Built 1960 Load: 14.5 t ADT: 365
Off Of 66
FairOver: SPANGLE BRANCH
0.03 M SW LA 66&Old LA 66, West Feliciana, LA
Built 1959 Load: 14.5 t ADT: 2,889
US0165
FairOver: KINDER CANAL
1.5 MI. N OF INT US 190, Allen, LA
Built 1932 Load: 14.6 t ADT: 11,886
Sparta Rd
FairOver: KCS RAILROAD
0.06 MI N OF US 80, Bienville, LA
Built 1940 Load: 14.6 t ADT: 150
LA0525
FairOver: BOGGY BAYOU
7.0 MI EAST OF LA 169, Caddo, LA
Built 1969 Load: 14.6 t ADT: 4,294
US0090
FairOver: CHOUPIQUE BAYOU
3.7 MI EAST OF LA 388, Calcasieu, LA
Built 1954 Load: 14.6 t ADT: 2,509
LA0615
FairOver: INDIAN CREEK
1.41 MI EAST OF LA 521, Claiborne, LA
Built 1976 Load: 14.6 t ADT: 697
Curtis Ln.
FairOver: Rodere Canal
0.3 Mi. S. of La 14, Iberia, LA
Built 1965 Load: 14.6 t ADT: 118
LA1264
FairOver: INTER COASTAL WATERWAY
0.5 MI.W.OF DOWMAN R, Orleans, LA
Built 1975 Load: 14.6 t ADT: 437
HYPOLITE MILLER RD
FairOver: BAYOU BOURBEUX
0.43 MI S of LA 754, St. Landry, LA
Built 1978 Load: 14.6 t ADT: 400
Bayou Jack Rd
FairOver: Bayou Jack
2.14 Mi SE of LA 107, St. Landry, LA
Built 1978 Load: 14.6 t ADT: 160
Cotten Rd.
FairOver: POSSUM POINT BAYOU
2.1 M S of US 90, St. Mary, LA
Built 1965 Load: 14.6 t ADT: 50
Bayou Gardens Blvd
FairOver: BAYOU
0.4 MI W OF LA 660, Terrebonne, LA
Built 1969 Load: 14.6 t ADT: 316
LA0082
FairOver: MARSH DITCH
11.52 Mi S of LA 3147, Vermilion, LA
Built 1958 Load: 14.6 t ADT: 2,899
Elliot Rd
FairOver: COULEE
0.4 Mi S of La 14, Vermilion, LA
Built 1960 Load: 14.6 t ADT: 150
HOLTON-HARRIS RD
FairOver: VERNON LAKE
1.89 M. S. OF JCT LA 111, Vernon, LA
Built 1965 Load: 14.6 t ADT: 180
LA0986
FairOver: CHOCTAW BAYOU
0.72 M W of LA 986&LA 1, West Baton Rouge, LA
Built 1969 Load: 14.6 t ADT: 1,204
LA3116
FairOver: CREEK
1.7 MI WEST OF LA 13, Acadia, LA
Built 1953 Load: 14.7 t ADT: 600
OLD PUMP RD
FairOver: CALCASIEU RIVER
1.4 MI NORTH OF US 190, Allen, LA
Built 1960 Load: 14.7 t ADT: 581
LA1160
FairOver: BAYOU
1.19 MI WEST OF LA 13, Evangeline, LA
Built 1963 Load: 14.7 t ADT: 2,000
LA0036
FairOver: DRAIN
1.3 M W OF LA 41, St. Tammany, LA
Built 1955 Load: 14.7 t ADT: 2,206
LA0038
FairOver: BEAVER CREEK
0.1 M W OF LA 1050, Tangipahoa, LA
Built 1952 Load: 14.7 t ADT: 1,535
LA1055
FairOver: WILSONS CREEK
2.8 M E OF LA 1054, Tangipahoa, LA
Built 1956 Load: 14.7 t ADT: 1,256
Old Spring Cr. Rd
FairOver: ASHELY'S BRANCH
1.7 MI NW OFJCT 1061&1054, Tangipahoa, LA
Built 2002 Load: 14.7 t ADT: 219
Lake Rd
FairOver: COULEE
0.9 miles E. of Goldie Rd, Vermilion, LA
Built 1970 Load: 14.7 t ADT: 100
LA0818
FairOver: BARNET SPRINGS CR
.3 MI SOUTH OF US 80, Lincoln, LA
Built 1966 Load: 14.8 t ADT: 1,542
LA0063
FairOver: CREEK
1.1 M E OF LA 1019, Livingston, LA
Built 1955 Load: 14.8 t ADT: 1,572
Showing 1,151-1,200 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 |