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
PRK ROAD
GoodOver: CREEK
2.40 MILES EAST OF LA 25, Washington, LA
Built 2010 Load: 32.7 t
PRK ROAD
GoodOver: CREEK
3.10 MILES EAST OF LA 25, Washington, LA
Built 2010 Load: 32.7 t
307 HQ BRIDGE
GoodOver: MACKS BAYOU
0.6 MI S OF TWINING RD, Bossier, LA
Built 1984 Load: 32.7 t ADT: 250
307 HQ PARKING LOT
GoodOver: MACKS BAYOU
0.7 MI S OF TWINING RD, Bossier, LA
Built 2006 Load: 32.7 t ADT: 200
FLAG LAKE BRIDGE
GoodOver: FLAG LAKE SPILLWAY
0.8 MI E OF RANGE ROAD, Bossier, LA
Built 1997 Load: 32.7 t ADT: 200
ACCESS ROAD
GoodOver: MACKS BAYOU
0.9 MI SE DAVIS AVE, Bossier, LA
Built 2002 Load: 32.7 t ADT: 2
ILS ROAD
GoodOver: MACKS BAYOU
1.1 MI SE OF 307TH HQ BLD, Bossier, LA
Built 2017 Load: 32.7 t ADT: 2
RANGE ROAD
GoodOver: RED CHUTE BAYOU
1.8 MI E LINDBERG RD, Bossier, LA
Built 2005 Load: 32.7 t ADT: 2,000
PERIMETER ROAD
GoodOver: WEST ANACOCO CREEK
VE 680 716, Sabine, LA
Built 1978 Load: 32.7 t ADT: 40
BEN WEST RD
GoodOver: WEST FORK PRAIRIE CR
6.5 MI NE OF ANACOCO, Vernon, LA
Built 2018 Load: 32.7 t ADT: 40
EOD BYPASS RD
GoodOver: BIG BRANCH
FORT POLK, Vernon, LA
Built 2018 Load: 32.7 t ADT: 336
WEEMS RD
GoodOver: COCKERELL CREEK
0.18 MI E OF LA 151, Ouachita, LA
Built 2016 Load: 32.9 t ADT: 30
WILL BROWN RD
GoodOver: SOUTH CHENIERE CREEK
0.9 MI S OF LA 34, Ouachita, LA
Built 2016 Load: 32.9 t ADT: 70
W Napolean Ave
GoodOver: Canal 4
.3 miles east of Clearvie, Jefferson, LA
Built 2003 Load: 33.0 t ADT: 21,460
US0090
GoodOver: LA 18 AND 541
1.0 MI S OF THE MISSISSIP, Jefferson, LA
Built 2013 Load: 33.0 t ADT: 28,780
WOODMERE BLVD
GoodOver: COUSINS CANAL
0.2 Mi S of Laplco BLVD, Jefferson, LA
Built 2001 Load: 33.0 t
VETERANS BLVD
GoodOver: 17TH STREET CANAL
0.2 MI. E. OF LAKE AVENUE, Jefferson, LA
Built 1997 Load: 33.0 t
VETERANS BLVD
GoodOver: 17TH STREET CANAL
.2 MI E. OF LAKE AVENUE, Jefferson, LA
Built 1997 Load: 33.0 t
WISNER BLVD.
GoodOver: I-610 SOUTHERN RR
2.0 MI. NE OF US61, Orleans, LA
Built 2018 Load: 33.0 t ADT: 8,000
Martin Dr
GoodOver: MORRISON CANAL
0.7 MI. SOUTH OF HAYNE BL, Orleans, LA
Built 2012 Load: 33.0 t
LA3195
GoodOver: TETE BAYOU
0.80 Mi N of La 87, Iberia, LA
Built 2008 Load: 33.0 t ADT: 7,245
Rue Du Belier
GoodOver: RUE DE BELIER EXT OVER C
0.25 Mi S of LA 93, Lafayette, LA
Built 2009 Load: 33.0 t ADT: 3,472
LA0092
GoodOver: CYPRESS BAYOU COULEE
0.8 MI WEST OF US 90, Lafayette, LA
Built 2012 Load: 33.0 t ADT: 8,744
Curran Ln.
GoodOver: CANAL
0.3 Mi W of Amb Caffery, Lafayette, LA
Built 2007 Load: 33.0 t ADT: 1,848
Potato Shed Road
GoodOver: Portage Bayou
0.3 Mi E. of LA 678, St. Martin, LA
Built 2019 Load: 33.0 t ADT: 612
LA0527
GoodOver: CREEK
1.15 MI. E OF US 71, Bossier, LA
Built 2006 Load: 33.0 t ADT: 1,951
Cool Springs Rd
GoodOver: BUSHNECK BAYOU
1.5 MI WEST OF LA 5, De Soto, LA
Built 2005 Load: 33.0 t ADT: 80
TARVER RD
GoodOver: LITTLE CR
1.8 MI N OF LA 132, Richland, LA
Built 2016 Load: 33.0 t ADT: 105
LA0120
GoodOver: Bayou Blue
3.65 MI E of LA 117, Natchitoches, LA
Built 2018 Load: 33.0 t ADT: 665
LA0010
GoodOver: BLUE BRANCH
.9 MI EAST OF LA 463, Vernon, LA
Built 2005 Load: 33.0 t ADT: 2,027
LA0010
GoodOver: BIG BRUSHY CREEK
0.35 MI. WEST OF LA 377, Vernon, LA
Built 2005 Load: 33.0 t ADT: 1,120
LA0010
GoodOver: TEN MILE CREEK
3.87 MI. EAST OF LA 377, Vernon, LA
Built 2006 Load: 33.0 t ADT: 2,773
LA0465
GoodOver: INDIAN BRANCH
2.85 MI EAST OF LA 117, Vernon, LA
Built 2000 Load: 33.0 t ADT: 115
COOPER CHURCH RD
GoodOver: ZOURIE CREEK
1.48 M. W. OF US 171, Vernon, LA
Built 2002 Load: 33.0 t ADT: 800
LA0562
GoodOver: BAYOU MACON
7.4 MI EAST OF LA 15, Franklin, LA
Built 1998 Load: 33.0 t ADT: 240
SILVERLEAF AVE
GoodOver: ROBERTS CANAL
0.43 MI NE OF US 61, East Baton Rouge, LA
Built 2018 Load: 33.0 t ADT: 15,670
Port Hudson-Pride
GoodOver: COMITE RIVER
4.9 MI NE JCT LA 67 LA 64, East Baton Rouge, LA
Built 2004 Load: 33.0 t ADT: 992
LA0022
GoodOver: BAYOU CHOUPIQUE
5.46 MI E OF JCT. LA 16, Livingston, LA
Built 2000 Load: 33.0 t ADT: 2,201
US0051
GoodOver: DRAIN
0.3 M N OF LA 1048, Tangipahoa, LA
Built 1957 Load: 33.0 t ADT: 2,199
Palm Dr.
GoodOver: CITY PARK LAGOON
0.1 MI.W.OF GOLF DR., Orleans, LA
Built 1939 Load: 33.4 t
LA1115
GoodOver: CREEK
8.56 MI EAST OF LA 91, Acadia, LA
Built 1960 Load: 33.4 t ADT: 377
Green Valley Rd
GoodOver: Petite Passe
1.0 Mi N. of LA 748, Evangeline, LA
Built 2022 Load: 33.4 t ADT: 10
LA0083
GoodOver: BAYOU WAREHOUSE
3.6 Miles North of LA 319, Iberia, LA
Built 2009 Load: 33.4 t ADT: 3,078
San Marcos Drive
GoodOver: Retention pond
0.08 Mi East of LA 339, Lafayette, LA
Built 2016 Load: 33.4 t ADT: 572
Memory Ln.
GoodOver: MINE BRANCH COULEE
0.59 Mi SW of LA 182, Lafayette, LA
Built 1970 Load: 33.4 t ADT: 500
S. St. Louis St
GoodOver: MINE BRANCH COULEE
0.09 MI E of White Oak Dr, Lafayette, LA
Built 1970 Load: 33.4 t ADT: 400
Jeanne St
GoodOver: MINE BRANCH COULEE
0.40 Mi SW of US 90, Lafayette, LA
Built 1970 Load: 33.4 t ADT: 480
Cheneau Rd
GoodOver: ISLE MARRONE CANAL
0.1 E of N Herpin Ave, Vermilion, LA
Built 2010 Load: 33.4 t ADT: 528
Guin St
GoodOver: CASTOR CREEK
1.6 MI SOUTH OF LA 507, Bienville, LA
Built 2013 Load: 33.4 t ADT: 120
Oakley Rd
GoodOver: BRINSONS CREEK
0.4 MI. SO. OF US 80, Bienville, LA
Built 2006 Load: 33.4 t ADT: 50
Showing 8,451-8,500 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.