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
HUDSON ROAD
GoodOver: CHATLIN LAKE CANAL
0.9 M SW OF LA 1, Rapides, LA
Built 2018 Load: 27.2 t ADT: 900
Graham Rd
GoodOver: FRONTAGE RD. UP RR
0.45 MI. NORTH OF US 71, Rapides, LA
Built 1996 Load: 27.2 t ADT: 2,000
BELVIEW RD
GoodOver: BEESONS CREEK
3.11 M. S. OF JCT LA 117, Vernon, LA
Built 1999 Load: 27.2 t ADT: 70
LA0127
GoodOver: FLAT CREEK BRANCH
8.4 MI NW OF LA 125, Caldwell, LA
Built 1962 Load: 27.2 t ADT: 314
LA0506
GoodOver: CREEK
1.3 MI WEST OF US 165, Caldwell, LA
Built 1984 Load: 27.2 t ADT: 306
LA0547
GoodOver: CREEK
2.43 MI W OF LA 126, Caldwell, LA
Built 1982 Load: 27.2 t ADT: 606
LA0846
GoodOver: CREEK
6.2 MI N OF LA 4, Caldwell, LA
Built 1982 Load: 27.2 t ADT: 650
Wiles Rd
GoodOver: RICHLAND CREEK
0.6M N of LA126, Caldwell, LA
Built 1996 Load: 27.2 t ADT: 70
COOPER LOOP ROAD
GoodOver: COOPER LOOP CREEK
0.02 MI S OF LA 8, LaSalle, LA
Built 2011 Load: 27.2 t ADT: 63
LA0008
GoodOver: HEMPS CREEK WEST
.01 MI NORTH OF LA 127, LaSalle, LA
Built 2007 Load: 27.2 t ADT: 1,628
LA 3064
GoodOver: BAYOU FOUNTAIN
0.3 MILES SOUTH OF HIGHLA, East Baton Rouge, LA
Built 2011 Load: 27.2 t ADT: 4,000
Comite Dr
GoodOver: WHITE BAYOU
0.8 MILES W OF LA6&COMITE, East Baton Rouge, LA
Built 2012 Load: 27.2 t ADT: 5,697
Glenn Oaks Dr
GoodOver: ROBERTS CANAL
BATON ROUGE LA., East Baton Rouge, LA
Built 1998 Load: 27.2 t ADT: 7,642
LA0386
GoodOver: CATFISH CANAL
1.8 M SW of LA 77, Iberville, LA
Built 1962 Load: 27.2 t ADT: 523
LA0413
GoodOver: BAYOU POYDRAS
1.2 M S of US 190, West Baton Rouge, LA
Built 1960 Load: 27.2 t ADT: 1,351
Bains Rd
GoodOver: BARROW CREEK
0.73 M NW LA 10&Bains Rd, West Feliciana, LA
Built 1984 Load: 27.2 t ADT: 90
Crossover Rd
GoodOver: Canal
1.0 mi. south of LA 1025, Livingston, LA
Built 2018 Load: 27.2 t ADT: 668
South Cleveland St
GoodOver: Rattlesnake Creek
0.85 Mi. W. of LA 21, St. Tammany, LA
Built 2019 Load: 27.2 t ADT: 50
LA0016
GoodOver: DRAIN
1.4 M E OF US 51, Tangipahoa, LA
Built 1962 Load: 27.2 t ADT: 12,718
LA0440
GoodOver: DYSON CREEK
LA0440, Tangipahoa, LA
Built 1960 Load: 27.2 t ADT: 752
W BLACKCAT Rd
GoodOver: I-55
1.9 M N OF LA 442, Tangipahoa, LA
Built 1970 Load: 27.2 t ADT: 3,610
LA1050
GoodOver: LA 1050 OVER I-55
LA1050, Tangipahoa, LA
Built 1966 Load: 27.2 t ADT: 1,583
Dollar Rd
GoodOver: PUSHEPATAPA CREEK
0.5 MI NORTH OF LA 436, Washington, LA
Built 2011 Load: 27.2 t ADT: 678
LA0439
GoodOver: BOGUE LUSA CREEK
LOGMILE 01.18 ON LA 439, Washington, LA
Built 1964 Load: 27.2 t ADT: 1,235
I0010
GoodOver: I-10 WB OFF RAMP
2 MILES WEST OF ORLEANS P, Jefferson, LA
Built 2009 Load: 27.5 t ADT: 15,955
LA0039
GoodOver: EICKES CANAL
.5 MI NORTH OF LA 36, St. Bernard, LA
Built 2001 Load: 27.5 t ADT: 47,739
LA3156
GoodOver: TECHE BAYOU
0.08 MI EAST OF LA 182, Iberia, LA
Built 2014 Load: 27.5 t ADT: 5,021
Sellers Rd
GoodOver: COULEE GRANGES
1.65 MI E of LA 343, Lafayette, LA
Built 2013 Load: 27.5 t ADT: 594
Dulles Rd.
GoodOver: COULEE MINE
0.7M WEST OF LA 3025, Lafayette, LA
Built 1989 Load: 27.5 t ADT: 1,560
Oscar Rivette Rd
GoodOver: Bayou Teche
0.02 Mi. W. of La 31, St. Landry, LA
Built 1977 Load: 27.5 t ADT: 525
LA0014
GoodOver: DRAINAGE
1.6 MI E of LA 338, Vermilion, LA
Built 1999 Load: 27.5 t ADT: 12,903
NOEL RD
GoodOver: NOEL DITCH
1.7 Mi W of La 694, Vermilion, LA
Built 1965 Load: 27.5 t ADT: 360
Barnes Rd
GoodOver: LEATHERMAN CREEK
0.1 MI SOUTH OF LA 518, Claiborne, LA
Built 1986 Load: 27.5 t ADT: 140
Lacoup Rd
GoodOver: BAYOU PIERRE
6.2 MI. W. OF LA 1, Red River, LA
Built 2006 Load: 27.5 t ADT: 82
HOLDEN RD
GoodOver: TURKEY CREEK
1.9 MI W of LA 152, Lincoln, LA
Built 1990 Load: 27.5 t ADT: 80
BERNIE TURNER RD
GoodOver: BAYOU
1.4 MI W. LA 599, Morehouse, LA
Built 1997 Load: 27.5 t ADT: 140
WEBB PIERCE RD
GoodOver: BRYANT BRANCH
1.75 MILES NORTH OF LA 34, Ouachita, LA
Built 2012 Load: 27.5 t ADT: 250
W Yellow Bayou Rd
GoodOver: YELLOW BAYOU
0.01 MI. WEST OF LA 1183, Avoyelles, LA
Built 1990 Load: 27.5 t ADT: 180
Francis Smith Rd
GoodOver: YELLOW BAYOU
5.46 MI. E. OF LEVEE RD., Avoyelles, LA
Built 2003 Load: 27.5 t ADT: 300
Beluah
GoodOver: BEULAH CREEK
0.54 MI. NORTH OF LA 1230, Winn, LA
Built 2003 Load: 27.5 t ADT: 160
US0190
GoodOver: DRAIN
3 MILES EAST OF LA63, Livingston, LA
Built 1955 Load: 27.5 t ADT: 7,126
I0010
GoodOver: I-10
1 MILE NORTH OF I-10, Jefferson, LA
Built 2012 Load: 27.9 t ADT: 15,955
Laural Valley Rd
GoodOver: CANAL
3.4M NE OF LA 308, Lafourche, LA
Built 1993 Load: 27.9 t ADT: 1,401
General de Gaulle
GoodOver: ALGIERS CANAL
0.2MI.E.OF HOLIDAY D, Orleans, LA
Built 1960 Load: 27.9 t
CASINO BLVD/OFF-RA
GoodOver: CITY STREET/RAILROAD
1.2 MI E OF PREES DR, Orleans, LA
Built 1998 Load: 27.9 t ADT: 48,620
LA3007
GoodOver: Lyons Point Gully
3 MI East OF LA 13, Acadia, LA
Built 1957 Load: 27.9 t ADT: 575
Dulles Dr.
GoodOver: MINE BRANCH COULEE
0.27 MI W. OF LA 3025, Lafayette, LA
Built 1990 Load: 27.9 t ADT: 2,140
Madden Mill Crk Rd
GoodOver: MADDEN MILL CREEK
2.6 MI NORTH OF LA 154, Bienville, LA
Built 1986 Load: 27.9 t ADT: 70
LA0511
GoodOver: DRAINAGE
.6 MI EAST OF LA 1, Caddo, LA
Built 1969 Load: 27.9 t ADT: 18,491
Barnes Rd
GoodOver: FRAZIER CREEK
2.0 MI. S OF LA 518, Claiborne, LA
Built 1997 Load: 27.9 t ADT: 100
Showing 7,051-7,100 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.