Total Bridges
12,699
Public highway bridges in Louisiana
State profile · Above median Poor share
Louisiana bridge safety
Condition ratings, load ratings, and Poor-condition data for every public highway bridge in Louisiana, based on the FHWA National Bridge Inventory.
- 12,699
- Public bridges
- 36.2%
- Good condition
- 11.0%
- Poor condition
Data updated May 2026
Good Condition
36.2%
4,603 bridges rated 7-9
-13.8pp vs 50% benchmark
Poor Condition
11.0%
1,397 bridges whose lowest applicable component is rated 0-4
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 - Poor-condition share 36.7%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
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 by Poor-condition share (lower share = better)
States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Louisiana on the same metric.
PA
Pennsylvania
10.50% top marginal rate
ND
North Dakota
10.84% top marginal rate
LA
Louisiana
11.00% top marginal rate
PR
Puerto Rico
11.98% top marginal rate
ME
Maine
13.23% top marginal rate
Bridges Needing Most Attention in Louisiana
Six lowest-condition bridges in Louisiana, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.
Layton Coco Xing
PoorOver: BAYOU DES GLAISES
0.01 MI. EAST OF LA 451, Avoyelles, LA
Built 1986 Load: 0.9 t ADT: 40
LA1077
PoorOver: BLACK BAYOU
1.1 M S OF LA 22, St. Tammany, LA
Built 1965 Load: 0.9 t ADT: 1,019
LA0308
PoorOver: 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
PoorOver: 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
AARON ROAD
PoorOver: CHENE BAYOU
2.5 MI W. OF LA 26, Jefferson Davis, LA
Built 1979 Load: 12.6 t ADT: 30
US0080
PoorOver: ICG RAILROAD
5.42 MI WEST OF LA 507, Lincoln, LA
Built 1949 Load: 12.6 t ADT: 2,378
US0080
PoorOver: CREEK
3.1 MI EAST OF LA 33, Lincoln, LA
Built 1952 Load: 12.6 t ADT: 3,395
Boon Lasseigne Rd
PoorOver: Martin Bayou
2.2 Mi. E of La 347, St. Martin, LA
Built 1972 Load: 12.6 t ADT: 63
LA0056
PoorOver: BOUDREAUX CANAL
7.2 MI SOUTH OF LA 58, Terrebonne, LA
Built 1959 Load: 12.6 t ADT: 3,872
LA0082
PoorOver: MIDDLE CANAL
11.31 Mi S of LA 3147, Vermilion, LA
Built 1958 Load: 12.6 t ADT: 2,899
Big 4 Rd
PoorOver: COULEE
0.5 Mi S of La 14, Vermilion, LA
Built 1996 Load: 12.6 t ADT: 70
LA3008
PoorOver: HOLDER CREEK
5.4 MI SOUTH OF LA 160, Webster, LA
Built 1972 Load: 12.6 t ADT: 145
W Esplanade Ave S
PoorOver: CANAL NO. 17
0.1 MI W. OF TULANE DR., Jefferson, LA
Built 1960 Load: 12.7 t
LA0308
PoorOver: BELLE TERRE CANAL
0.5 Mi. S. of LA 943, Ascension, LA
Built 1963 Load: 13.0 t ADT: 1,349
LA1010
PoorOver: LABADIEVILLE DRAIN 2
0.7 Mi. N of LA 398, Assumption, LA
Built 1980 Load: 13.0 t ADT: 111
LA0160
PoorOver: CYPRESS BAYOU
.73 MI EAST OF LA 3, Bossier, LA
Built 1969 Load: 13.0 t ADT: 622
I0020
PoorOver: STL&SW-KCS RR/WESTERFIEL
1.04 MI EAST LA 1, Bossier, LA
Built 1966 Load: 13.0 t ADT: 45,300
LA0525
PoorOver: BOGGY BAYOU
3.0 MI WEST OF US 71, Caddo, LA
Built 1969 Load: 13.0 t ADT: 4,294
LA3063
PoorOver: DRAINAGE DITCH
0.1 MI S of US 90, Calcasieu, LA
Built 1968 Load: 13.0 t ADT: 1,918
E Achord Rd
PoorOver: DRAINAGE BAYOU
3.0 M E of LA 73, East Baton Rouge, LA
Built 1975 Load: 13.0 t ADT: 1,732
LA0001
PoorOver: LATERAL W15#7A
2.35 M S of LA 417, Pointe Coupee, LA
Built 1957 Load: 13.0 t ADT: 3,289
FDR 287
PoorOver: BRANCH CREEK
NATIONAL FOREST ROAD, Rapides, LA
Built 1963 Load: 13.0 t ADT: 60
LA0514
PoorOver: BAYOU CHICOT
1.8 MI EAST OF US 71, Red River, LA
Built 1970 Load: 13.0 t ADT: 772
LA0132
PoorOver: LITTLE CREEK
4.0 MI EAST OF LA 135, Richland, LA
Built 1972 Load: 13.0 t ADT: 1,913
LA0010
PoorOver: BAYOU HA HA
1.7 Miles West of LA 105, St. Landry, LA
Built 1958 Load: 13.0 t ADT: 708
Phillip St.
PoorOver: BAYOU YARBOR
0.2 Mi E of Brown St, St. Landry, LA
Built 1960 Load: 13.0 t ADT: 200
US0090
PoorOver: MIDDLE MIDDLE PEARL RIVE
2.4 miles east of US 190, St. Tammany, LA
Built 1933 Load: 13.0 t ADT: 1,215
US0090
PoorOver: E MIDDLE PEARL RIVER
3 miles east of US 190, St. Tammany, LA
Built 1933 Load: 13.0 t ADT: 1,215
LA0022
PoorOver: TANGIPAHOA RIVER
LA0022, Tangipahoa, LA
Built 1939 Load: 13.0 t ADT: 6,435
Bennett Rd
PoorOver: CREEK
1 MI NW OF SR 40 EXI, Tangipahoa, LA
Built 1975 Load: 13.0 t ADT: 2,750
Stateline Rd
PoorOver: CREEK
4.1 MI NW OF JCT 51&, Tangipahoa, LA
Built 1960 Load: 13.0 t ADT: 40
LA0582
PoorOver: CREEK
2.5 MI SOUTH OF LA 2, West Carroll, LA
Built 1956 Load: 13.0 t ADT: 355
LA1231-1
PoorOver: CREOSOTE BRANCH
.44 MI WEST OF US 167, Winn, LA
Built 1968 Load: 13.0 t ADT: 569
LA0372
PoorOver: CREEK
6.7 MI S OF LA 10, Allen, LA
Built 1962 Load: 13.3 t ADT: 435
Manchac Acres Rd.
PoorOver: Cotton Bayou
1.3 MI N of LA 42, Ascension, LA
Built 1970 Load: 13.3 t ADT: 75
LA0501
PoorOver: DRAIN
.01 MI NORTH OF LA 4, Bienville, LA
Built 1960 Load: 13.3 t ADT: 218
I0020
PoorOver: LK SHORE DR&KESRR
.5 MI EAST OF US 80, Caddo, LA
Built 1965 Load: 13.3 t ADT: 98,318
Telesmar Ave
PoorOver: CLAY CUT BAYOU
1.8 MI SE I-12, US61, East Baton Rouge, LA
Built 1970 Load: 13.3 t ADT: 150
Angus Ave
PoorOver: DRAINAGE CANAL
0.2 Mi W. of LA 67, East Baton Rouge, LA
Built 1966 Load: 13.3 t ADT: 722
LA0955
PoorOver: Monahan Bayou
1.8 M S of LA 10&LA 955, East Feliciana, LA
Built 1966 Load: 13.3 t ADT: 989
W. Metairie Ave
PoorOver: SONIAT CANAL
.1MI.W.OF DAVID DRIV, Jefferson, LA
Built 1960 Load: 13.3 t
LA0316
PoorOver: ST LOUIS CANAL
1.8 MI NORTH OF LA 182, Lafourche, LA
Built 1972 Load: 13.3 t ADT: 1,292
LA0648
PoorOver: DRAIN CANAL
.62 MI EAST OF LA 648, Lafourche, LA
Built 1959 Load: 13.3 t ADT: 9,183
Dumaine St.
PoorOver: BAYOU SAINT JOHN
0.0MI.W.OF MOSS, Orleans, LA
Built 1951 Load: 13.3 t
LA0561
PoorOver: BOEUF RIVER
11.0 MI SOUTH OF LA 132, Richland, LA
Built 1952 Load: 13.3 t ADT: 1,543
LA0082
PoorOver: MILLER CANAL
10.21 Mi S of LA 3147, Vermilion, LA
Built 1958 Load: 13.3 t ADT: 2,899
TOM QUAVE RD
PoorOver: CHERRYWINCHE CREEK
0.7 MI E of SAM CLOUD RD, Allen, LA
Built 1983 Load: 13.6 t ADT: 10
Katie Rd
PoorOver: DRAINAGE DITCH
0.25 MI. SOUTH OF LA 1181, Avoyelles, LA
Built 1965 Load: 13.6 t ADT: 100
LA0808
PoorOver: INDIAN CREEK
2.5 MI EAST OF LA 521, Claiborne, LA
Built 1949 Load: 13.6 t ADT: 123
Frenchtown Rd
PoorOver: DRAUGHAN CREEK
1.6 M E of LA 73, East Baton Rouge, LA
Built 1960 Load: 13.6 t ADT: 4,745
LA0577
PoorOver: BULL BAYOU
2.0 MI EAST OF LA 15, Franklin, LA
Built 1955 Load: 13.6 t ADT: 1,341
Sidney Leblanc Rd
PoorOver: Coulee
0.01 MILE E OF LA 83, Iberia, LA
Built 1986 Load: 13.6 t ADT: 293
LA0001
PoorOver: BAYOU PLAQUEMINE
0.20 MI SE OF LA 77, Iberville, LA
Built 1950 Load: 13.6 t ADT: 10,843
Serenity Rd.
PoorOver: COULEE
0.3 Mi. West of Bonin Rd, Lafayette, LA
Built 1972 Load: 13.6 t ADT: 40
Showing 11,701-11,750 of 12,699 bridges
Related
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.
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). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.
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.
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.