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
LA0004
GoodOver: MUDDY CREEK
0.3 MI E OF LA 501, Bienville, LA
Built 2010 Load: 35.0 t ADT: 1,445
LA0004
GoodOver: DRAIN
0.2 MI E OF LA 501, Bienville, LA
Built 2010 Load: 35.0 t ADT: 1,445
Swan Lake Rd
GoodOver: Flat River Bayou
5.5 MI. N. OF US 80, Bossier, LA
Built 2006 Load: 35.0 t ADT: 2,800
Watts Rd
GoodOver: SUGAR CREEK
7 MI. NW SIMS ROAD, Claiborne, LA
Built 2007 Load: 35.0 t ADT: 80
US0167
GoodOver: CREEK
14.6 MI NORTH OF WINN PAR, Jackson, LA
Built 2011 Load: 35.0 t ADT: 8,681
CONCORD RD
GoodOver: EDWARDS BRANCH
0.9 MI SW of LA 146, Jackson, LA
Built 2002 Load: 35.0 t ADT: 65
LA0146
GoodOver: BIG CREEK
1.25 MI. EAST OF LA 563, Lincoln, LA
Built 2013 Load: 35.0 t ADT: 2,775
STEVE OGDEN RD
GoodOver: BAYOU MACON
0.5 MILES EAST OF LA 577, Madison, LA
Built 2012 Load: 35.0 t ADT: 100
ANGUS RD
GoodOver: PRAIRIE BAYOU
2.51 MI NE of US 165 S, Ouachita, LA
Built 2005 Load: 35.0 t ADT: 3,000
CUMMINS RD
GoodOver: GOLDMINE CREEK
0.9 MI S of LA 135, Richland, LA
Built 2002 Load: 35.0 t ADT: 50
OQUINN RD
GoodOver: CYPRESS CREEK
1.1 MI SW of I-20, Richland, LA
Built 2002 Load: 35.0 t ADT: 100
LITROE LOOP
GoodOver: PIERRE CREEK
0.9 MI E of LA 826, Union, LA
Built 2003 Load: 35.0 t ADT: 62
LA1208-1
GoodOver: HYNSON BAYOU
3.45 MI. E OF US71, Rapides, LA
Built 1994 Load: 35.0 t ADT: 4,442
Cheneyville Cutoff
GoodOver: COULEE DU PECHEUR
1.58 MI. SW OF LA 1, Rapides, LA
Built 2012 Load: 35.0 t ADT: 543
US0171
GoodOver: BAYOU TORO
4.97 MI. NORTH OF LA 392, Sabine, LA
Built 2009 Load: 35.0 t ADT: 4,790
US0167
GoodOver: BIG CREEK
2.18 MI. NORTH OF LA 126, Winn, LA
Built 2010 Load: 35.0 t ADT: 5,367
US0167
GoodOver: KCS RAILROAD
.7 MI NORTH OF LA 34, Winn, LA
Built 2006 Load: 35.0 t ADT: 15,576
LA0562
GoodOver: TURKEY CREEK
6.30 M S of LA 875, Franklin, LA
Built 2006 Load: 35.0 t ADT: 1,532
Tommie Moore Rd
GoodOver: HURRICANE BAYOU
0.27 Mi west of LA 17., Franklin, LA
Built 1993 Load: 35.0 t ADT: 40
Clydesdale Road
GoodOver: COW SLOUGH
1.67 M SW of LA 4, Tensas, LA
Built 2003 Load: 35.0 t ADT: 50
Rountree Rd
GoodOver: NEW RIVER
0.2 OF A MILE NORTH OF LA, Ascension, LA
Built 2013 Load: 35.0 t ADT: 5
Elm Grove Garden
GoodOver: MONTE SANO BAYOU
0.5 MI S OF ROSENWALD RD, East Baton Rouge, LA
Built 2014 Load: 35.0 t ADT: 2,362
LA0946
GoodOver: COMITE RIVER
LA 946 APPROX. 2.4 MILES, East Baton Rouge, LA
Built 2009 Load: 35.0 t ADT: 11,578
LA0946
GoodOver: COMITE RIVER RELIEF
LA 946 APPROX 2.2 MILES N, East Baton Rouge, LA
Built 2009 Load: 35.0 t ADT: 11,578
EAST GARFIELD ST
GoodOver: CORPORATION CANAL
0.05 MI E OF HIGHLAND RD, East Baton Rouge, LA
Built 2018 Load: 35.0 t ADT: 308
LA0010
GoodOver: REDWOOD CREEK
0.5 MILES WEST OF JCT. LA, East Feliciana, LA
Built 2012 Load: 35.0 t ADT: 5,083
Beechgrove Rd
GoodOver: PRETTY CREEK
3.2 MILES N OF CLINTON, East Feliciana, LA
Built 1998 Load: 35.0 t ADT: 76
Beechgrove Rd
GoodOver: DRAINAGE CREEK
3.4 MI N. OF CLINTON, East Feliciana, LA
Built 1998 Load: 35.0 t ADT: 56
Perkins Rd
GoodOver: PERKINS RD POND
3.2 MI. N FELIXVILLE, East Feliciana, LA
Built 2003 Load: 35.0 t ADT: 24
LA0075
GoodOver: MILLY CANAL
5.2 MILES WEST OF LA 1, Iberville, LA
Built 2011 Load: 35.0 t ADT: 1,490
Black Lake Club Rd
GoodOver: BAYOU
3.5 MILES SOUTH OF LA. 22, Livingston, LA
Built 2014 Load: 35.0 t ADT: 300
Otis/Wilie Mathews
GoodOver: DARLING CREEK
2.5 MI. SOUTH OF LA 10, St. Helena, LA
Built 1999 Load: 35.0 t ADT: 200
LA1088
GoodOver: I 12
3.4 Mi NE of LA 59, St. Tammany, LA
Built 2011 Load: 35.0 t ADT: 12,029
US0190
GoodOver: DRAIN
0.2 MILE WEST OF US 90, St. Tammany, LA
Built 2013 Load: 35.0 t ADT: 2,496
City Park Dr.
GoodOver: LAPORTS COULEE
120 South of LA 14, Vermilion, LA
Built 2011 Load: 35.2 t ADT: 50
Chestnut Rd.
GoodOver: ROBINS CANAL
3.6 Mi. East of LA 3093, Vermilion, LA
Built 2016 Load: 35.2 t ADT: 118
Cleo Road
GoodOver: Broussard Canal
1.8 Mi W of Leon Rd, Vermilion, LA
Built 2020 Load: 35.2 t ADT: 100
ST. MARY STREET
GoodOver: GREENS GULLY
0.2 MI N of ST. MARY ST., Jefferson Davis, LA
Built 2021 Load: 35.2 t ADT: 100
BURMA RD
GoodOver: HOLLYWOOD CANAL
1.0 MI. SOUTH OF LA 1, Lafourche, LA
Built 2012 Load: 35.3 t ADT: 1,643
Laurel Valley Rd
GoodOver: DRAIN CANAL
0.8 Mi. W. of Choctaw Rd, Lafourche, LA
Built 2001 Load: 35.3 t ADT: 1,406
Duvic Pump Rd
GoodOver: DRAIN CANAL
0.1 MI W OF LA 23, Plaquemines, LA
Built 2005 Load: 35.3 t
VENTURA DR
GoodOver: 20 ARPENT CANAL
0.51 MI N OF LA 39, St. Bernard, LA
Built 2013 Load: 35.3 t ADT: 200
Port Rd
GoodOver: Rodere Lateral
2.50 Mi W of La 83, Iberia, LA
Built 2012 Load: 35.3 t ADT: 1,776
LA0154
GoodOver: CROSS BAYOU
2.46 MILES EAST OF US 71, Bossier, LA
Built 2008 Load: 35.3 t ADT: 3,124
I0049
GoodOver: I-220
I-49 @ I-220 INTERCHANGE, Caddo, LA
Built 2018 Load: 35.3 t ADT: 59,221
Linwood Ave
GoodOver: WALLACE BAYOU
4.0 MI S. OF LA 526, De Soto, LA
Built 2001 Load: 35.3 t ADT: 760
Burrow Ln
GoodOver: FRENCH CREEK
1.0 MI S OF LA 160, Webster, LA
Built 1999 Load: 35.3 t ADT: 555
LA0146
GoodOver: BIG CREEK RELIEF
1.38 MI. EAST OF LA 563, Lincoln, LA
Built 2013 Load: 35.3 t ADT: 2,775
BEACON LIGHT RD
GoodOver: I C RAILROAD
3 MI EAST OF RUSTON, Lincoln, LA
Built 1984 Load: 35.3 t ADT: 500
VTR AIRPORT RD
GoodOver: CYPRESS BAYOU
0.1 MI E of US 65, Madison, LA
Built 2006 Load: 35.3 t ADT: 125
Showing 8,801-8,850 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.