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
Henderson Bayou Rd
PoorOver: HENDERSON BAYOU
3.2M WS OF PORT VINCENT, Ascension, LA
Built 1990 Load: 27.2 t ADT: 300
Rue De Kajun
PoorOver: BAYOU
.40 MI. WEST LA 70, Assumption, LA
Built 1999 Load: 27.2 t ADT: 192
LA0157
PoorOver: FLAT RIVER
.55 MI NORTH OF US 71, Bossier, LA
Built 1964 Load: 27.2 t ADT: 2,626
LA0014
PoorOver: BAYOU
9.2 MI EAST OF LA 27, Calcasieu, LA
Built 1966 Load: 27.2 t ADT: 1,363
LA0126
PoorOver: BEECH CREEK
2.1 MI WEST OF LA 3239, Caldwell, LA
Built 1970 Load: 27.2 t ADT: 570
LEONARD LITTLE RD.
PoorOver: CANAL
0.08 MI. E. OF INT. LA 27, Cameron, LA
Built 1964 Load: 27.2 t ADT: 8
LA 124
PoorOver: LARTO LAKE BAYOU
27.4 MI S OF US 84, Catahoula, LA
Built 1958 Load: 27.2 t ADT: 514
LA0002
PoorOver: BLACK BAYOU
1.0 MI EAST OF LA 521, Claiborne, LA
Built 1962 Load: 27.2 t ADT: 817
Gibbens Rd
PoorOver: CYPRESS BAYOU
0.4 Mi. S of LA 423, East Baton Rouge, LA
Built 1970 Load: 27.2 t ADT: 2,125
Palmetto St OnRamp
PoorOver: KCS RR
2.4 MI EAST OF LA 3046, Orleans, LA
Built 1960 Load: 27.2 t ADT: 47,738
WPA Rd
PoorOver: BAYOU BOEUF
0.1 Mi. E. of La 182, St. Landry, LA
Built 1975 Load: 27.2 t ADT: 750
US0090
PoorOver: RAMOS BAYOU
4.1 MI EAST OF US 90, St. Mary, LA
Built 1932 Load: 27.2 t ADT: 7,504
LA0151
PoorOver: STOWE CREEK
.14 MI EAST OF LA 33, Union, LA
Built 1961 Load: 27.2 t ADT: 527
LA0117
PoorOver: BLACKLAND BRANCH
4.14 MI NORTH OF LA 28, Vernon, LA
Built 1954 Load: 27.2 t ADT: 1,513
US0080
PoorOver: MILE CREEK
2.57 MI EAST OF US 371, Webster, LA
Built 1948 Load: 27.2 t ADT: 9,109
LA0531
PoorOver: PARMERS CREEK
2.2 MI NORTH OF LA 792, Webster, LA
Built 1967 Load: 27.2 t ADT: 236
LA0531
PoorOver: BRUSHY CREEK
1.66 MI NORTH OF LA 532, Webster, LA
Built 1966 Load: 27.2 t ADT: 1,689
US0071
PoorOver: LITTLE NATCHEZ BAYOU
0.58 MI. NORTH OF LA 477, Winn, LA
Built 1955 Load: 27.2 t ADT: 1,457
Jackson Rd
PoorOver: BEAVER CREEK
3.9 MI. WEST OF PRID, East Baton Rouge, LA
Built 1971 Load: 27.5 t ADT: 1,379
John Lewis Rd
PoorOver: Little Valley Bayou
0.3 Mi. E. of La 83, Iberia, LA
Built 1975 Load: 27.5 t ADT: 422
LA0118
PoorOver: WEST TORO CREEK
3.04 MILES EAST OF US 171, Sabine, LA
Built 1985 Load: 27.5 t ADT: 1,471
I0020
PoorOver: BEAR CREEK
.54 MI EAST OF US 80, Bienville, LA
Built 1964 Load: 27.9 t ADT: 37,514
I0020
PoorOver: M.P. RR
.6 MI EAST OF US 80, Caddo, LA
Built 1965 Load: 27.9 t ADT: 98,318
LA0002
PoorOver: MIDDLEFORK BAYOU DARBONN
2.8 MI EAST OF LA 152, Claiborne, LA
Built 1949 Load: 28.1 t ADT: 990
LA0151
PoorOver: NORTH CHENIERE CR
5.21 MI NORTH OF LA 546, Ouachita, LA
Built 1958 Load: 28.1 t ADT: 2,828
Pine Island Rd
PoorOver: Warren Canal
5.9 Mi W of LA 82, Vermilion, LA
Built 2000 Load: 28.1 t ADT: 50
LA0002
PoorOver: RED RIVER-MILLER'S BLUFF
3.3 MI EAST OF US 71, Bossier, LA
Built 1955 Load: 28.2 t ADT: 2,059
US0165
PoorOver: DRAIN
2.5 MI NORTH OF LA 101, Jefferson Davis, LA
Built 1937 Load: 28.2 t ADT: 4,912
LA0507
PoorOver: BRUSHY CREEK
1.0 MI NORTH OF LA 784, Red River, LA
Built 1979 Load: 28.2 t ADT: 517
S. Flannery Rd
PoorOver: LIVELY BAYOU
440 Ft N of LA 426, East Baton Rouge, LA
Built 1965 Load: 28.3 t ADT: 12,710
US0165
PoorOver: CREEK
5.07 MI NORTH OF LA 2, Morehouse, LA
Built 1939 Load: 28.5 t ADT: 1,405
US0165
PoorOver: BAYOU GALION
1.5 MI NORTH OF SOUTH INT, Morehouse, LA
Built 1935 Load: 28.5 t ADT: 1,405
E Lanoux Rd
PoorOver: NEW RIVER CANAL
0.2 M N of LA 429, Ascension, LA
Built 1994 Load: 28.8 t ADT: 25
Harry Savoy Rd
PoorOver: DRAINAGE BAYOU
.8 MI NE LA 431, LA 621, Ascension, LA
Built 1993 Load: 28.8 t ADT: 100
LA0168
PoorOver: NANCE BRANCH
6.38 MI E OF LA 1, Caddo, LA
Built 1983 Load: 28.8 t ADT: 625
LA0015
PoorOver: OLD RIVER OVERBANK C.S.
75MI NW OF BATON ROUGE, Concordia, LA
Built 1959 Load: 28.8 t ADT: 602
US0090
PoorOver: NEW IBERIA SOUTHERN CANA
1.10 Mi W of LA 83, Iberia, LA
Built 1999 Load: 28.8 t ADT: 12,192
I0010
PoorOver: VET MEM HWY
1.9 MI EAST OF LA 49, Jefferson, LA
Built 1967 Load: 28.8 t ADT: 41,695
LA1208-1
PoorOver: HORSESHOE CANAL
3.0 MI. E OF US71, Rapides, LA
Built 1975 Load: 28.8 t ADT: 4,442
LA0507
PoorOver: GRAND BAYOU RELIEF
1.84 MI NORTH OF US 71, Red River, LA
Built 1976 Load: 28.8 t ADT: 691
LA0010
PoorOver: DRAIN
0.5 MILES EAST OF LA 450, Washington, LA
Built 1990 Load: 28.8 t ADT: 1,478
Sittig St.
PoorOver: COULEE
0.28 MI. EAST OF LA 755, Acadia, LA
Built 1990 Load: 29.0 t ADT: 2,016
Bay St
PoorOver: NORTHDALE CANAL
0.1 MI W of LA 3164, East Baton Rouge, LA
Built 1960 Load: 29.0 t ADT: 2,397
PAYTON RD
PoorOver: CREEK
0.4 MI E of GUILLORY RD, Jefferson Davis, LA
Built 1970 Load: 29.0 t ADT: 75
Woodview Ln
PoorOver: DRAINAGE DITCH
.4 MILES FROM LA 413 ON W, Pointe Coupee, LA
Built 1970 Load: 29.0 t ADT: 136
US0165
PoorOver: LA. & ARKANSAS RR
1.44 MI. N OF INT US71, Rapides, LA
Built 1997 Load: 29.0 t ADT: 20,902
LA0175
PoorOver: BAYOU SAN MIGUEL
2.18 M N OF N JCT. LA 120, Sabine, LA
Built 1950 Load: 29.0 t ADT: 1,587
LA0604
PoorOver: CREEK
5.66 MI NORTH OF LA 605, Tensas, LA
Built 1962 Load: 29.0 t ADT: 1,151
US0090
PoorOver: BAYOU RAMOS
3.19 Mi E of LA 182, St. Mary, LA
Built 1994 Load: 29.2 t ADT: 7,885
US0090
PoorOver: BAYOU RAMOS
2.5 Mi W. of LA 662, St. Mary, LA
Built 1994 Load: 29.2 t ADT: 10,035
Showing 12,501-12,550 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.