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
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: ASHELYS BRANCH
1.7 MI NW OFJCT 1061&1054, Tangipahoa, LA
Built 2002 Load: 14.7 t ADT: 219
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
LA0038
FairOver: BEAVER CREEK
3.9 M E OF LA 441, St. Helena, LA
Built 1952 Load: 14.8 t ADT: 1,535
LA1047
FairOver: WEST NATALBANY CREEK
0.4 M SW OF LA 1048, St. Helena, LA
Built 1958 Load: 14.8 t ADT: 287
Wadesboro Rd
FairOver: CANAL
1.6 MI SW OF SR 22 E, Tangipahoa, LA
Built 1960 Load: 14.8 t ADT: 366
CHAUVIN BRIDGE RD
FairOver: PETIT CAILLOU BAYOU
0.02 MI SW OF LA 56, Terrebonne, LA
Built 2011 Load: 14.9 t ADT: 720
Chemin Metairie
FairOver: COULEE
0.1 MI N. of La 3073, Lafayette, LA
Built 1979 Load: 14.9 t ADT: 580
W. North St.
FairOver: BAYOU TESSON
0.2 Mi W. of La 182, St. Landry, LA
Built 1935 Load: 14.9 t ADT: 500
W. Grolee St.
FairOver: BAYOU TESSON
0.3 Mi W. of La 182, St. Landry, LA
Built 1935 Load: 14.9 t ADT: 800
Boat Shop Rd
FairOver: TIGRE BAYOU
1.1 Mi W of LA 331, Vermilion, LA
Built 1970 Load: 14.9 t ADT: 350
Keith Rd
FairOver: Trib. to Buchanan Bayou
0.4 SO OF HWY 525, Caddo, LA
Built 1978 Load: 14.9 t ADT: 40
LA0818
FairOver: CREEK
3.0 MI SOUTH OF LA 3061, Lincoln, LA
Built 1979 Load: 14.9 t ADT: 1,542
US0165
FairOver: B BONNE IDEE
.8 MI NORTH OF NORTH INT, Morehouse, LA
Built 1936 Load: 14.9 t ADT: 1,405
GRAMMONT ST
FairOver: W PRONG YOUNGS BAYOU
GRAMMONT ST IN MONRO, Ouachita, LA
Built 1970 Load: 14.9 t ADT: 250
US0080
FairOver: DRAIN
2.0 MI EAST OF LA 183, Richland, LA
Built 1930 Load: 14.9 t ADT: 1,451
LA0389
FairOver: DRAIN
0.05 MI. S OF US 190, Beauregard, LA
Built 1951 Load: 14.9 t ADT: 442
JENIUS RD.
FairOver: THORNWELL CANAL
0.6 MI N of LA 14, Jefferson Davis, LA
Built 1978 Load: 14.9 t ADT: 40
CORMIER VILLAGE RD
FairOver: CREEK
2.2 E of LA 101, Jefferson Davis, LA
Built 1979 Load: 14.9 t ADT: 250
THEO ROAD
FairOver: CREEK
0.5 MI E of PanchovilleRd, Jefferson Davis, LA
Built 1978 Load: 14.9 t ADT: 48
FDR 120
FairOver: PANTHER BAYOU TRIB.
NO DATA ENTERED, Grant, LA
Built 1981 Load: 14.9 t ADT: 15
FDR 120
FairOver: FISH CREEK
NO DATA ENTERED, Grant, LA
Built 1982 Load: 14.9 t ADT: 15
145 PR
FairOver: DYSON CREEK
NO DATA ENTERED, Grant, LA
Built 1982 Load: 14.9 t ADT: 30
FDR 253
FairOver: ROARING CREEK
NO DATA ENTERED, Rapides, LA
Built 1982 Load: 14.9 t ADT: 30
FDR 522
FairOver: WOLF CREEK
LOGMI 3.40 FR 536 TO, Winn, LA
Built 1977 Load: 14.9 t ADT: 30
FDR 530
FairOver: BRUSHY CREEK
NO DATA ENTERED, Grant, LA
Built 1965 Load: 14.9 t ADT: 20
FDR 537
FairOver: WOLF CREEK TRIBUTARY
6 MI. WSW OF WINNFIELD, Winn, LA
Built 1975 Load: 14.9 t ADT: 30
FDR 558
FairOver: PRAIRIE CREEK
LOGMI 0.48 FR 569 TO, Grant, LA
Built 1965 Load: 14.9 t ADT: 34
FDR 605
FairOver: DRY CHOCTAW CR. TRIB.
1.5 MI. N/N.E. OF CHESTNT, Natchitoches, LA
Built 1970 Load: 14.9 t ADT: 30
FDR 400
FairOver: TIGHTEYE CREEK
9.5 MI. ENE. OF ROSPINE, Vernon, LA
Built 1982 Load: 14.9 t ADT: 60
FDR 904
FairOver: SUGAR CREEK
1.3 MILES WEST OF LA. 9, Claiborne, LA
Built 1982 Load: 14.9 t ADT: 30
FDR 910
FairOver: TRIB. MIDDLE FORK CREEK
3.0 MI. NORTH LA. 9, Claiborne, LA
Built 1980 Load: 14.9 t ADT: 30
Rice Rd
FairOver: LITTLE FORDOCHE CREEK
1.45 M. SW OF GOLDONNA RO, Natchitoches, LA
Built 1970 Load: 14.9 t ADT: 102
I0010
FairOver: US 61 & KCS RR
JCT of I-10 & US 61, Ascension, LA
Built 1975 Load: 14.9 t ADT: 49,274
LA0001
FairOver: BAYOU WHITE VINE
6.71 M N of Morganza, Pointe Coupee, LA
Built 1935 Load: 14.9 t ADT: 4,369
LA1024
FairOver: BEAVER CREEK
0.8 M E OF LA 16, Livingston, LA
Built 1962 Load: 14.9 t ADT: 1,020
LA1090
FairOver: I-10
0.7 M N OF US 190, St. Tammany, LA
Built 1970 Load: 14.9 t ADT: 9,260
Rufus Bankston Rd
FairOver: CREEK
2.2 NW OF 190 EXIT ON 55, Tangipahoa, LA
Built 2000 Load: 14.9 t ADT: 3,941
GEORGIA AVE
FairOver: BUNDICK CREEK
VE799316, Vernon, LA
Built 1978 Load: 14.9 t ADT: 336
Eighty Arpent Rd
FairOver: Coulee
1.2 Miles East of LA 673, Iberia, LA
Built 1967 Load: 15.2 t ADT: 64
LA0752
FairOver: BAYOU MALLET
2.73 MI E OF LA 751, St. Landry, LA
Built 1968 Load: 15.2 t ADT: 475
Zin Zin Rd
FairOver: COULEE
0.7 Mi. S of LA 349, St. Martin, LA
Built 1966 Load: 15.2 t ADT: 658
Adam Guidry Rd
FairOver: COULEE
0.2 Mi. SW of LA 686, St. Martin, LA
Built 1968 Load: 15.2 t ADT: 160
WESTLAKE DR
FairOver: BARTHOLOMEW BAYOU
ENTRANCE TO SUBDIVIS, Ouachita, LA
Built 1968 Load: 15.2 t ADT: 1,443
N PUMPKIN RDGE RD
FairOver: CATTLE CROSSING
2.7 MI N of INT LA 82, Cameron, LA
Built 1976 Load: 15.2 t ADT: 658
FDR 208
FairOver: ODEN BRANCH
NO DATA ENTERED, Rapides, LA
Built 1977 Load: 15.2 t ADT: 10
FDR 523
FairOver: CR. @ 523
LOGMI 1.17 FR 502 TO, Winn, LA
Built 1975 Load: 15.2 t ADT: 150
FDR 610
FairOver: LITTLE BEAR CR
LOG 2.62 FR 657 TO, Grant, LA
Built 1962 Load: 15.2 t ADT: 28
Mudville Rd
FairOver: CREEK
0.48 M. NE OF US 165, Grant, LA
Built 1935 Load: 15.2 t ADT: 130
Showing 301-350 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.