Total Bridges
12,698
Public highway bridges in Louisiana
State profile · Above median Poor share
Louisiana bridge safety
According to the Federal Highway Administration's 2024 National Bridge Inventory, condition ratings, load ratings, and Poor-condition shares for every public highway bridge in Louisiana.
- 12,698
- Public bridges
- 38.7%
- Good condition
- 11.5%
- Poor condition
Louisiana holds 12,698 public highway bridges (#24 of 52 by inventory) with a 11.48% Poor share (#8 of 52 by Poor share).
That is 11.5% of the state's inventory, against an average of 7.5% across the 54 states and territories with Poor-rated bridges on file, which places it 45 of 54 ordered from the lowest Poor share upward. A bridge is rated Poor when its weakest applicable component scores 4 or below on the inspecting agency's 0-9 scale, so the category is a maintenance and funding signal rather than a closure order or a live crossing-safety verdict.
Inventory: FHWA NBI 2024 · last ETL August 2026
Good Condition
38.7%
4,919 bridges rated 7-9
-11.3pp vs 50% benchmark
Poor Condition
11.5%
1,458 bridges whose lowest applicable component is rated 0-4
4.0pp vs national avg 7.5%
Louisiana vs national bridge condition
Louisiana - Good condition share 38.7%
National avg
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Louisiana - Poor-condition share 38.3%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.5%.
Louisiana in the national condition pattern
Each point is a state or territory in the FHWA NBI; the highlighted point is this profile.
Louisiana vs all states by public bridge inventory
Where this state's FHWA NBI public-highway bridge count sits among every state and territory on PlainBridges
12,698 24th of 54 higher than 30 of 54 states
States and territories, banded by public bridge inventory size
Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · 2024
Read the rank neighborhood for Louisiana
The highlighted point is Louisiana: 12,698 bridges and 11.48% in Poor condition, rank #45 of 54 jurisdictions ordered from the lowest share upward. The five jurisdictions immediately above and below Louisiana on that same Poor-share ordering:
- North Dakota: 4,255 bridges · 10.98% Poor
- Michigan: 11,371 bridges · 11.27% Poor
- Louisiana: 12,698 bridges · 11.48% Poor
- Pennsylvania: 23,299 bridges · 12.58% Poor
- Guam: 47 bridges · 12.77% Poor
The full national sortable table lives on the rankings page.
Material families in Louisiana
Exclusive FHWA material families across all 12,698 bridges in this state; continuous variants fold into the parent family. Orthogonal to the Poor-share scatter above.
Who maintains Louisiana’s inventory
State agency holds 61.0% of the 12,698 public highway bridges filed under Louisiana in the 2024 NBI, the agency-of-record split for this state, not a condition verdict.
When Louisiana’s bridges were built
Pre-1950 construction accounts for 4.2% of the 12,698 bridges with a recorded original year in Louisiana. Era bands are orthogonal to the Poor-share ranking above.
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 322 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.
ND
North Dakota
10.98% top marginal rate
MI
Michigan
11.27% top marginal rate
LA
Louisiana
11.48% top marginal rate
PA
Pennsylvania
12.58% top marginal rate
GU
Guam
12.77% 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.
Avenue E
PoorOver: DRESSER CANAL
0.10 MI WEST OF LA 1, Lafourche, LA
Built 1952 Load: 0.0 t
VALENTINE BRIDGE R
PoorOver: LAFOURCHE BAYOU
0.01 MI N OF LA 1, Lafourche, LA
Built 1969 Load: 0.0 t
UNNAMED RD
PoorOver: I-10
3.1 MI EAST OF I-510, Orleans, LA
Built 1969 Load: 0.0 t ADT: 28,550
UNNAMED RD
PoorOver: I-10
4.5 MI EAST OF I-510, Orleans, LA
Built 1969 Load: 0.0 t ADT: 28,550
Almonaster Ave
PoorOver: INNER HARBOR NAVIGATION
0.01 MI E OF FRANCE RD, Orleans, LA
Built 1919 Load: 0.0 t
Beiber Rd
PoorOver: NEZPIQUE BAYOU
3.65 Mi W of La 1160, Evangeline, LA
Built 1965 Load: 0.0 t ADT: 70
All Bridges in Louisiana
Lock #2 Rd
FairOver: BRUSHY BRANCH
4.5 MI N OF JCT 435 & 41, St. Tammany, LA
Built 1960 Load: 13.3 t ADT: 294
LOOKOUT ROAD
FairOver: BIRDS CREEK
VE 949 320, Vernon, LA
Built 1976 Load: 13.3 t ADT: 336
DR. BEATROUS RD
FairOver: MARMANDE CANAL
0.3 MI N OF ST. ELOI RD, Terrebonne, LA
Built 1960 Load: 13.6 t ADT: 330
Vie Terre Beau Rd
FairOver: Nezpique Bayou
1.41 MI. WEST OF LA 1123, Acadia, LA
Built 2015 Load: 13.6 t ADT: 48
LA0104
FairOver: PINE POINT GULLY
0.9 MI EAST OF LA 1161, Evangeline, LA
Built 1970 Load: 13.6 t ADT: 2,203
LA0676
FairOver: DEBLANC COULEE
1.5 MI WEST OF LA 14, Iberia, LA
Built 1942 Load: 13.6 t ADT: 553
Souvenir Gate Rd.
FairOver: MINE BRANCH COULEE
0.76 Mi SW of LA 182, Lafayette, LA
Built 1970 Load: 13.6 t ADT: 900
Green Rd.
FairOver: Bayou Fuselier
2.2 Mi. N. of La 1252, St. Landry, LA
Built 1979 Load: 13.6 t ADT: 125
Kennerson Rd
FairOver: Bayou Kennison
0.2 Mi. S. Of I49 Srvc Rd, St. Landry, LA
Built 1971 Load: 13.6 t ADT: 575
Bayou Mercier Rd.
FairOver: BERARD CANAL BAYOU
0.2 Mi. W of LA 96, St. Martin, LA
Built 1965 Load: 13.6 t ADT: 414
LA0319
FairOver: CYPREMORT POINT
7.6 MI SOUTH OF LA 83, St. Mary, LA
Built 1969 Load: 13.6 t ADT: 914
Katy Bridge App Rd
FairOver: TECHE BAYOU
0.2 Mi. N of La 182, St. Mary, LA
Built 1959 Load: 13.6 t ADT: 1,050
Farmer Rd
FairOver: ROBINS CANAL
2.6 Mi S of La 14, Vermilion, LA
Built 1965 Load: 13.6 t ADT: 30
LA0612
FairOver: CREEK
1.36 MI EAST OF US 71, Bossier, LA
Built 1965 Load: 13.6 t ADT: 8,332
ARDIS TAYLOR DRIVE
FairOver: GREEN TERRACE DITCH
0.6 MI. EAST OF LA 5, Caddo, LA
Built 1970 Load: 13.6 t ADT: 2,000
Old Moorings-Latex
FairOver: MILLER BRANCH
0.4 MI NORTH OF CADDO 130, Caddo, LA
Built 2000 Load: 13.6 t ADT: 57
DORCHEAT ST.
FairOver: CREEK
0.28 MI NE OF US 371, Webster, LA
Built 1925 Load: 13.6 t ADT: 890
LA0004
FairOver: BEAR CREEK
.7 MI EAST OF LA 499, Jackson, LA
Built 1952 Load: 13.6 t ADT: 338
MONDY RD
FairOver: REDWINE CREEK
5 MI SE SIMSBORO, Lincoln, LA
Built 1977 Load: 13.6 t ADT: 175
LA0599
FairOver: BONNE IDEE
3.1 MI EAST OF US 165, Morehouse, LA
Built 1957 Load: 13.6 t ADT: 268
LAPINE RD
FairOver: ROGERS CREEK
6 MI NW LUNA, Ouachita, LA
Built 1960 Load: 13.6 t ADT: 118
LAVOI RD
FairOver: CANAL
0.3 MI S OF LA 14, Calcasieu, LA
Built 1997 Load: 13.6 t ADT: 143
THREE MILE RD.
FairOver: EAST LACASSINE BAYOU
1.60 MI. E. OF INT. LA 99, Jefferson Davis, LA
Built 1970 Load: 13.6 t ADT: 40
Lake Pearl Rd
FairOver: DRAINAGE DITCH
APPROX. 0.5 MI. EAST OF S, Avoyelles, LA
Built 1995 Load: 13.6 t ADT: 60
Foster Drive
FairOver: BAYOU PEROT
MARKSVILLE AVOYELLES PAR, Avoyelles, LA
Built 1985 Load: 13.6 t ADT: 100
FDR 422
FairOver: HURRICANE BRANCH
5.2 M. NE. OF ROSEPIN, Vernon, LA
Built 1970 Load: 13.6 t ADT: 50
REMBERT ST
FairOver: HUFFMAN CREEK
0.02 M. N. OF GREER ST., Rapides, LA
Built 1981 Load: 13.6 t ADT: 250
LA0568
FairOver: LITTLE CHOCTAW BAYOU
.01 MI NORTH OF LA 3009, Tensas, LA
Built 1958 Load: 13.6 t ADT: 329
LA1024
FairOver: CREEK
0.4 M E OF LA 16, Livingston, LA
Built 1956 Load: 13.6 t ADT: 1,020
S. Range Rd
FairOver: CREEK
2 MI. NW OF LA 63, Livingston, LA
Built 1998 Load: 13.6 t ADT: 600
Wildwood Dr
FairOver: BEAVER CREEK
.55 MI N OF JUNC 16& 1025, Livingston, LA
Built 1999 Load: 13.6 t ADT: 100
LA0038
FairOver: CREEK
0.2 M E OF LA 432, St. Helena, LA
Built 1954 Load: 13.6 t ADT: 933
LA0040
FairOver: SAVANNAH BRANCH
LA0040, St. Tammany, LA
Built 1954 Load: 13.6 t ADT: 2,778
LA1085
FairOver: BRIDGE OVER FOX BRANCH
1.20 M SOUTH OF I-12, St. Tammany, LA
Built 1968 Load: 13.6 t ADT: 6,010
Stepp Rd
FairOver: CREEK
3 MI SE OF JCT 190 &, Tangipahoa, LA
Built 1960 Load: 13.6 t ADT: 272
Easley Rd
FairOver: SCOTT CREEK
2.4 MI NW OF JCT 40& 1062, Tangipahoa, LA
Built 1960 Load: 13.6 t ADT: 880
BENS FORD ROAD
FairOver: BOGUE LUSA CREEK
0.27 MI N OF LA.60, Washington, LA
Built 2016 Load: 13.6 t ADT: 300
LA1071
FairOver: CREEK
4.9 M SE OF LA 21, Washington, LA
Built 1954 Load: 13.6 t ADT: 498
Van Buren St
FairOver: COBURN CREEK
0.1.MI. N.OF LUCERNE, Washington, LA
Built 1960 Load: 13.6 t ADT: 780
LOOKOUT ROAD
FairOver: WEST FORK SIXMILE CREEK
VE996339, Vernon, LA
Built 1976 Load: 13.6 t ADT: 100
Tolson Rd
FairOver: COULEE
1.2 Mi E of Verot Sch Rd, Lafayette, LA
Built 1977 Load: 13.9 t ADT: 2,580
Cleo Rd
FairOver: BILL COULEE
0.5 Mi W of Leon Rd, Vermilion, LA
Built 1976 Load: 13.9 t ADT: 150
Big 4 Rd
FairOver: Maree Michel Canal
1.1 Mi S of La 14, Vermilion, LA
Built 1998 Load: 13.9 t ADT: 70
LA0557
FairOver: PRAIRION BAYOU
5.06 MI SOUTH OF LA 34, Ouachita, LA
Built 1964 Load: 13.9 t ADT: 1,073
450 FDR
FairOver: BLACK CREEK BRANCH
8.0 M. E. OF ROSEPINE, Vernon, LA
Built 1970 Load: 13.9 t ADT: 20
450 FDR
FairOver: BRANCH OF BLACK CREEK
7.8M. E. OF ROSEPIN, Vernon, LA
Built 1970 Load: 13.9 t ADT: 20
450 FDR
FairOver: BRANCH OF BLACK CREEK
6.2 M. E. OF ROSEPIN, Vernon, LA
Built 1970 Load: 13.9 t ADT: 20
I0610
FairOver: CITY STREETS
3.1 MI EAST OF I-10, Orleans, LA
Built 1975 Load: 14.3 t ADT: 40,300
Sidney Leblanc Rd
FairOver: Peebles Coulee
0.5 Mi. E. of La 83, Iberia, LA
Built 1968 Load: 14.3 t ADT: 62
Country Ridge Rd.
FairOver: Coulee Rouge
0.40 Mi E of LA 31, St. Landry, LA
Built 2007 Load: 14.3 t ADT: 25
Showing 201-250 of 12,698 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.
What to do with this
Use Louisiana's inventory picture to drill to a county or a specific span.
- Browse counties in Louisiana and open the highest-Poor shares first. County list
- See where this state sits among peers on Poor-condition share. State rankings
- Compare this state with another jurisdiction on the same measures. State compare
NBI condition ratings are inventory snapshots, not live crossing-safety verdicts.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Louisiana Good/Fair/Poor shares and county rollups on this page are computed from the same NBI extract as the national boards; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.