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
Yucatan RD
GoodOver: BLUE HOLE
.73 Miles SE OF LA 608, Tensas, LA
Built 1992 Load: 25.9 t ADT: 120
LA0010
GoodOver: ALLIGATOR BAYOU
2.27 MILES WEST OF US 61, West Feliciana, LA
Built 2010 Load: 25.9 t ADT: 5,763
Carr Dr
GoodOver: CANAL
INT. OF CARR DR AND US 11, St. Tammany, LA
Built 2010 Load: 25.9 t ADT: 502
Perrin St.
GoodOver: Little Cypress Bayou
0.4 Mi. S of LA 2, Bossier, LA
Built 2023 Load: 26.0 t ADT: 420
Redland Rd
GoodOver: Caney Creek
2.0 M NORTH OF LA 2, Bossier, LA
Built 1990 Load: 26.0 t ADT: 50
DEMOSS ROAD
GoodOver: ROGERS CREEK
2.60 MI. S. OF LA 34, Ouachita, LA
Built 2019 Load: 26.1 t ADT: 42
Smithway Drive
GoodOver: Drain to Verret Canal
0.3 Mi. W. of Gretna BLVD, Jefferson, LA
Built 2010 Load: 26.2 t ADT: 976
I0010
GoodOver: VETERANS BLVD OFF RAMP
0.3 MILES NORTH OF I 10, Jefferson, LA
Built 2011 Load: 26.2 t ADT: 15,955
I0010
GoodOver: CANAL NO 3
1.9 MI EAST OF LA 49, Jefferson, LA
Built 1967 Load: 26.2 t ADT: 15,955
PALMETTO ST
GoodOver: 17 TH STREET CANAL
0.01M NORTH OF ORPHEUM, Jefferson, LA
Built 1991 Load: 26.2 t ADT: 1,000
Fortune Rd
GoodOver: ANSELM COULEE
0.1 MI E of LA 339, Lafayette, LA
Built 2002 Load: 26.2 t ADT: 3,650
Cockpit Rd.
GoodOver: CARENCRO BAYOU
1.64 Mi E of LA 93, Lafayette, LA
Built 1992 Load: 26.2 t ADT: 640
W. Teche Ln.
GoodOver: BAYOU LITTLE TECHE
0.1 Mi SW. of La 743, St. Landry, LA
Built 2005 Load: 26.2 t ADT: 250
OCKLEY DRIVE
GoodOver: BAYOU PIERRE
0.9 MI WEST OF LA 1, Caddo, LA
Built 1991 Load: 26.2 t ADT: 2,558
Dement Rd
GoodOver: TRIB. TO LAKE BISTINEAU
2.0 MILES EAST OF LA 163, Webster, LA
Built 2008 Load: 26.2 t ADT: 80
LA0507
GoodOver: LA 507 OVER I-20
LA 507 OVER I-20, Lincoln, LA
Built 1963 Load: 26.2 t ADT: 2,768
BESS LAKE RD
GoodOver: CREEK
1.0 MI N of LA 856, Richland, LA
Built 2011 Load: 26.2 t ADT: 100
HOLMESVILLE RD
GoodOver: CYPRESS CREEK
1.1 MI W of LA 15, Union, LA
Built 1993 Load: 26.2 t ADT: 59
Bennys Ln
GoodOver: DRAINAGE CANAL
1 MI. WEST OF LA 115, Avoyelles, LA
Built 1992 Load: 26.2 t ADT: 120
New Zion Rd
GoodOver: WEST TURKEY CREEK
LOGMI 2.47 FR 186 TO 123, Franklin, LA
Built 1993 Load: 26.2 t ADT: 380
Levee Rd
GoodOver: LAKE ST. PETER CANAL
1.4 MI S OF ICE HOUSE RD, Tensas, LA
Built 2000 Load: 26.2 t ADT: 75
Central Throughway
GoodOver: COMITE RIVER
1.3 MI. N. OF US190, East Baton Rouge, LA
Built 2011 Load: 26.2 t ADT: 10,400
E. McKinley St
GoodOver: CORPORATION CANAL
BATON ROUGE, East Baton Rouge, LA
Built 2009 Load: 26.2 t ADT: 500
Dawson Rd
GoodOver: DAWSON CREEK
2.7 MI. N. JCT LA10, East Feliciana, LA
Built 1977 Load: 26.2 t ADT: 70
White Rd
GoodOver: DUNN CREEK
1.6 MI. N. FELPS, East Feliciana, LA
Built 1992 Load: 26.2 t ADT: 8
LA0010
GoodOver: MISSISSIPPI RIVER
6.5 MILES EAST OF LA1 BUS, Pointe Coupee, LA
Built 2011 Load: 26.2 t ADT: 5,763
LA0010
GoodOver: MISSISSIPPI RIVER
3.143 MILES WEST OF US 61, West Feliciana, LA
Built 2011 Load: 26.2 t ADT: 5,763
Bonner Cr. Rd
GoodOver: BONNER CREEK
0.7 MILE WEST OF HWY 25, Washington, LA
Built 2006 Load: 26.2 t ADT: 382
I0310
GoodOver: GROUND
0.01 M FROM I-10, St. Charles, LA
Built 1992 Load: 26.3 t ADT: 29,468
US0090
GoodOver: BAYOU TERREBONNE
.2 MI EAST OF LA 24, Terrebonne, LA
Built 1980 Load: 26.3 t ADT: 12,192
LA0830-1
GoodOver: BAYOU BARTHOLOMEW
2.72 MI WEST OF US 425, Morehouse, LA
Built 1983 Load: 26.3 t ADT: 242
RED OAK ROAD (LOC)
GoodOver: I-12
1.2 M E OF LA 63, Livingston, LA
Built 1969 Load: 26.3 t ADT: 4,360
LA1063
GoodOver: NATALBANY RIVER
LA1063, Tangipahoa, LA
Built 1962 Load: 26.3 t ADT: 1,130
LA0654
GoodOver: BAYOU LAFOURCHE
.01 MI EAST OF LA 1, Lafourche, LA
Built 2003 Load: 26.6 t ADT: 1,791
CASINO BLVD
GoodOver: CITY STREET
1.1 MI E OF PRESS DR, Orleans, LA
Built 1998 Load: 26.6 t ADT: 48,620
LA0013
GoodOver: GRAND COULEE
.1 MI NORTH OF LA 368, Acadia, LA
Built 1960 Load: 26.6 t ADT: 5,027
US0090/FRONTAGE RD
GoodOver: DRAIN
0.54 Mi. West of LA 688, Iberia, LA
Built 2017 Load: 26.6 t ADT: 1,112
US0090
GoodOver: LA0083
2.1 MI E OF LA 329, Iberia, LA
Built 2004 Load: 26.6 t ADT: 21,926
LOCK ACCESS ROAD
GoodOver: BAYOU CHENE
END OF LA 333, Vermilion, LA
Built 1982 Load: 26.6 t ADT: 100
Keithvil-Keatchie
GoodOver: FOSTER CREEK
5.0 MI NORTH OF LA 789, Caddo, LA
Built 1993 Load: 26.6 t ADT: 100
SMALLING RD
GoodOver: CREEK
1.4 MI W of LA 183, Richland, LA
Built 2011 Load: 26.6 t ADT: 200
Larto Lake Cutoff
GoodOver: POWELL CUT-OFF
1.7 miles SW of LA 3102, Catahoula, LA
Built 1999 Load: 26.6 t ADT: 130
John Williamson Dr
GoodOver: CREEK
0.06 MI W of Crestview Dr, Concordia, LA
Built 2014 Load: 26.6 t ADT: 60
Alice Shaw Rd
GoodOver: TURKEY CREEK
0.2 M W of LA 865, Franklin, LA
Built 2012 Load: 26.6 t ADT: 1,001
LA0004
GoodOver: BEOUF RIVER
6.50 M W of LA 135, Franklin, LA
Built 2004 Load: 26.6 t ADT: 1,558
Elm St
GoodOver: WEST PRONG HEMPHILL CREE
160 East of US 84, LaSalle, LA
Built 1998 Load: 26.6 t ADT: 28
Lemon Rd
GoodOver: DOYLE BAYOU
2.5 MI W of LA 67, East Baton Rouge, LA
Built 1993 Load: 26.6 t ADT: 542
Thompson Creek Rd
GoodOver: HURRICANE CREEK
4.5 Miles West of LA 19, East Feliciana, LA
Built 1990 Load: 26.6 t ADT: 70
Esterbrook Rd
GoodOver: CREEK
0.80 M S of LA 22, Tangipahoa, LA
Built 1984 Load: 26.6 t ADT: 767
S. Mooney ave.
GoodOver: CREEK
SOUTH MOONEY AVE HAMMOND, Tangipahoa, LA
Built 1984 Load: 26.6 t ADT: 693
Showing 6,951-7,000 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.