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
N. Cooper Rd
GoodOver: COOPER CREEK
4 MILES SOUTHEAST OF JCT, Tangipahoa, LA
Built 2009 Load: 37.3 t ADT: 961
Maree Michel Rd
GoodOver: Maree Michel Canal
1 Mi E of La 14, Vermilion, LA
Built 2019 Load: 37.5 t ADT: 58
Bella Rd
GoodOver: Granger Coulee
0.10 MI. S. OF LA 92, Vermilion, LA
Built 2016 Load: 37.5 t ADT: 150
Tan Rd
GoodOver: Bayou Grand Marais
0.6 M E. OF LA 35, Vermilion, LA
Built 2018 Load: 37.5 t ADT: 421
BROADVIEW DR
GoodOver: LAPORTS COULEE
0.07 MI W OF LA 339, Vermilion, LA
Built 2023 Load: 37.5 t ADT: 575
W. METAIRIE AVE N
GoodOver: SONIAT CANAL
2.06 MI W OF LA 3152, Jefferson, LA
Built 2017 Load: 37.6 t ADT: 2,000
Michoud BLVD
GoodOver: DRAIN CANAL
0.2 MILES NORTH OF HWY 90, Orleans, LA
Built 2009 Load: 37.6 t
Michoud BLVD
GoodOver: DRAIN CANAL
0.2 MILES NORTH OF HWY 90, Orleans, LA
Built 2009 Load: 37.6 t
Mt Carmel Rd.
GoodOver: BAYOU DOZA
2.6 Mi E of La 95, Evangeline, LA
Built 2010 Load: 37.6 t ADT: 27
US0090
GoodOver: LA 675
4.33 Mi SE of LA 88, Iberia, LA
Built 2009 Load: 37.6 t ADT: 29,549
US0090
GoodOver: LA 675
1.7 MI NW of LA 14, Iberia, LA
Built 2009 Load: 37.6 t ADT: 10,090
Railroad Rd
GoodOver: Jefferson Canal
2.0 Mi W of Lee Gordon Rd, Iberia, LA
Built 2016 Load: 37.6 t ADT: 134
David Dubon Rd
GoodOver: Rodere Canal
1.28 MI E OF LA 329, Iberia, LA
Built 2016 Load: 37.6 t ADT: 633
Danielle Rd
GoodOver: Coulee
1.1 Mi. S. of La 344, Iberia, LA
Built 1991 Load: 37.6 t ADT: 651
ESPAISIE RD
GoodOver: EDITH COULEE
0.46 MI S OF LA 92, Lafayette, LA
Built 2017 Load: 37.6 t ADT: 702
US0190
GoodOver: US0071
2.5 MI W of LA 3174, St. Landry, LA
Built 2010 Load: 37.6 t ADT: 13,476
Chelsie Rd
GoodOver: BAYOU MALLET
0.2 MI East of Falcon Rd, St. Landry, LA
Built 2008 Load: 37.6 t ADT: 30
Cosay Rd
GoodOver: BAYOU CARRON
1.25 Mi S of LA 103, St. Landry, LA
Built 1990 Load: 37.6 t ADT: 600
Wright Rd
GoodOver: COULEE
3.7 MILES S. OF LA.14, Vermilion, LA
Built 2015 Load: 37.6 t ADT: 219
Isadore Rd
GoodOver: COULEE
0.2 Mi E of Jude Rd, Vermilion, LA
Built 2010 Load: 37.6 t ADT: 366
Rice Cove Rd
GoodOver: YOUNGS NORTH COULEE
0.2 Mi E of Airport Rd, Vermilion, LA
Built 1985 Load: 37.6 t ADT: 1,290
N. Broadway St
GoodOver: LAPORTS COULEE
0.1 Mi S. of La 14, Vermilion, LA
Built 1986 Load: 37.6 t ADT: 1,620
SHED RD
GoodOver: I-220
2.8 MI EAST OF LA 3105, Bossier, LA
Built 1991 Load: 37.6 t ADT: 1,818
Airline Dr
GoodOver: Willow Chute Bayou
2.0 MI N OF US HWY 80, Bossier, LA
Built 2004 Load: 37.6 t ADT: 19,000
LA0173
GoodOver: CREEK
2.7 MI S. OF LA 538, Caddo, LA
Built 2013 Load: 37.6 t ADT: 3,057
ORANGE ST
GoodOver: YOUNGS BAYOU
0.1 MI. SOUTH OF LA 594, Ouachita, LA
Built 2013 Load: 37.6 t ADT: 5,600
Rye Ln
GoodOver: ALLIGATOR BAYOU
0.4 MI E of LA 588, West Carroll, LA
Built 2008 Load: 37.6 t ADT: 26
N PERKINS FERRY RD
GoodOver: BELFIELD DITCH
1.5 MI. N OF LA 378, Calcasieu, LA
Built 2012 Load: 37.6 t ADT: 10,079
W. CROCKER ST
GoodOver: BAYOU DINDE
0.7 MI S OF US 90, Calcasieu, LA
Built 2017 Load: 37.6 t ADT: 390
CURRIE DRIVE
GoodOver: DRAIN
0.08 MI W OF CARLYSS DR, Calcasieu, LA
Built 2023 Load: 37.6 t ADT: 2,233
LA0156
GoodOver: BRYANT CREEK
2.83 MI EAST OF INT LA 9, Natchitoches, LA
Built 2012 Load: 37.6 t ADT: 597
COULEE LOOP
GoodOver: COULEY LOOP RD
2.38 MI N OF S INT. US 71, Natchitoches, LA
Built 2012 Load: 37.6 t ADT: 165
LA0478
GoodOver: OLD RIVER
6.65 MILES EAST OF LA 120, Natchitoches, LA
Built 2013 Load: 37.6 t ADT: 172
LA0478
GoodOver: BAYOU JULIEN
7.54 MILES EAST OF LA 120, Natchitoches, LA
Built 2013 Load: 37.6 t ADT: 172
LA0008
GoodOver: CREEK
5.2 MI. E OF E JCT. LA 46, Vernon, LA
Built 2012 Load: 37.6 t ADT: 5,978
Ice House Rd
GoodOver: LAKE ST. PETER CANAL
0.9 W of LA 897-6, Tensas, LA
Built 2009 Load: 37.6 t ADT: 100
LA 400
GoodOver: CANCIENNE CANAL
4.2 MILES NORTHWEST OF LA, Assumption, LA
Built 2013 Load: 37.6 t ADT: 384
Perkins Rd
GoodOver: FARM POND
1.7 MI NE LA 67 LA22 JCT, East Feliciana, LA
Built 2003 Load: 37.6 t ADT: 24
Pecan Lane
GoodOver: Chenal Canal
0.1 Mi S of LA 413, Pointe Coupee, LA
Built 2022 Load: 37.6 t ADT: 80
Buddy Ellis Rd
GoodOver: WEST COYLELL CREEK
1.5 MILES WEST OF LA 447, Livingston, LA
Built 2007 Load: 37.6 t ADT: 500
Rohner Rd
GoodOver: TWELVE MILE CREEK
1.8 MI W JCT LA 43 & 1045, St. Helena, LA
Built 1985 Load: 37.6 t ADT: 350
Lee St
GoodOver: BOGUE CHITTO CREEK
0.3 MILES SOUTH OF LA 10, Washington, LA
Built 2009 Load: 37.6 t ADT: 1,200
Mt. Pleasant Rd
GoodOver: LEES CREEK
1.7 MI. WEST OF LA. 1075, Washington, LA
Built 1984 Load: 37.6 t ADT: 1,170
Spring Valley Rd
GoodOver: LEES CREEK
1.0 MI.WEST.OF.LA.1075, Washington, LA
Built 1983 Load: 37.6 t ADT: 630
LA0428
GoodOver: ALGIERS CANAL
0.80 MILE SOUTH EAST OF U, Orleans, LA
Built 2012 Load: 37.9 t ADT: 626
TULLIS DR
GoodOver: CANAL
1.2M EAST OF BEHRMAN HWY, Orleans, LA
Built 1989 Load: 37.9 t ADT: 500
TULLIS DR
GoodOver: ALGIERS CANAL
0.6M EAST BEHRMAN HWY, Orleans, LA
Built 1989 Load: 37.9 t ADT: 1,000
TULLIS DR
GoodOver: ALGIERS CANAL
0.6M EAST BEHRMAN HWY, Orleans, LA
Built 1989 Load: 37.9 t ADT: 1,000
THOMPSON RD
GoodOver: BAYOU PETIT CAILLOU
1.3 MI. E. OF LA 57, Terrebonne, LA
Built 2016 Load: 37.9 t ADT: 4,256
LA0153
GoodOver: TOPY CR
2.44 MI. N. OF LA 155, Bienville, LA
Built 2017 Load: 37.9 t ADT: 1,377
Showing 9,251-9,300 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.