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
I0055
GoodOver: ELEVATED RDWY
11.0 M S OF LA 22, Tangipahoa, LA
Built 1979 Load: 30.8 t ADT: 39,850
I0055
GoodOver: ON RAMP SOUTH US 51
9.9 M S OF LA 22, Tangipahoa, LA
Built 1979 Load: 30.8 t ADT: 8,115
LA0025
GoodOver: DRAIN
1.7 M N OF LA 38, Washington, LA
Built 1963 Load: 30.8 t ADT: 2,272
Shelby Booty Rd
GoodOver: LITTLE SILVER CREEK
0.39 MI NORTH OF LA 1056, Washington, LA
Built 2004 Load: 30.8 t ADT: 375
Max Brumfield Rd
GoodOver: BRIDGE OVER HAYS CREEK
0.4 MI W. OF PARISH RD 39, Washington, LA
Built 2005 Load: 30.8 t ADT: 227
West Napoleon Ave
GoodOver: Soniat Canal
1.3 MI E OF WILLIAMS BLVD, Jefferson, LA
Built 2005 Load: 31.1 t ADT: 21,463
West Napoleon Ave
GoodOver: Soniat Canal
0.06 mi W of David Drive, Jefferson, LA
Built 2005 Load: 31.1 t ADT: 24,341
PATRIOT ST
GoodOver: DRAIN CANAL
0.2 MI E. OF BARATARIA, Jefferson, LA
Built 1970 Load: 31.1 t ADT: 250
W. Canal Dr.
GoodOver: ELMWOOD CANAL
0.4 Mi N of Veterans BLVD, Jefferson, LA
Built 1999 Load: 31.1 t
EARHART BLVD EB
GoodOver: EARHART BLVD @ WASH. CAN
.2 MI EAST JEFF DAVIS PKW, Orleans, LA
Built 2005 Load: 31.1 t
EARHART BLVD WB
GoodOver: EARHART BLVD @ WASH. CAN
.2 MI EAST JEFF DAVIS PKW, Orleans, LA
Built 2005 Load: 31.1 t
LA0013
GoodOver: BAYOU PLAQUEMINE
0.9 MILES NORTH OF I-10, Acadia, LA
Built 2008 Load: 31.1 t ADT: 9,371
LA0343
GoodOver: HWY 343 OVER CREEK
0.49 MI S LA 342, Lafayette, LA
Built 2012 Load: 31.1 t ADT: 3,340
Bruce St
GoodOver: ACADIANA CANAL
.08 Mi E of Raymond St, Lafayette, LA
Built 2012 Load: 31.1 t ADT: 436
Danville Rd
GoodOver: DUKEDALL CREEK
3.5 MI. E OF LA 155, Bienville, LA
Built 2006 Load: 31.1 t ADT: 100
LA0002
GoodOver: DRAIN
3.34 MI EAST OF JCT LA9, Claiborne, LA
Built 2012 Load: 31.1 t ADT: 2,020
OLD RIVER RD
GoodOver: CANEY CREEK RELIEF
1.8 MI SOUTH OF LA 389, Beauregard, LA
Built 2005 Load: 31.1 t ADT: 70
LA0082
GoodOver: CANAL
18.7 MI W OF LA3147, Cameron, LA
Built 2002 Load: 31.1 t ADT: 2,899
Camp Hardtner Rd
GoodOver: Carson Branch
5.6 M. S. OF JCT. US 165, Grant, LA
Built 2011 Load: 31.1 t ADT: 100
Hart Rd
GoodOver: BAYOU BOURBEAUX
0.01 MILES NORTH OF LA 48, Natchitoches, LA
Built 2010 Load: 31.1 t ADT: 309
Durand Rd
GoodOver: SPRING CREEK
0.39 MI. SOUTH OF LA 112, Rapides, LA
Built 2015 Load: 31.1 t ADT: 100
Ten Mile Rd
GoodOver: TEN MILE CREEK
0.40 MILE WEST OF LA 462, Rapides, LA
Built 1991 Load: 31.1 t ADT: 280
Richmond Rd
GoodOver: MILL CREEK
1.23 M. NE OF MELDER ROAD, Rapides, LA
Built 2005 Load: 31.1 t ADT: 95
Forestry Rd
GoodOver: INDIAN CREEK
2.31 MI. SE OF LA 3265, Rapides, LA
Built 2001 Load: 31.1 t ADT: 250
Buddy Taylor
GoodOver: IATT CREEK
1.2 M. S. OF END LA 1228, Winn, LA
Built 2003 Load: 31.1 t ADT: 55
Stump Rd
GoodOver: STUMP ROAD CREEK
0.1 Mi N of McClendon Ln, LaSalle, LA
Built 2006 Load: 31.1 t ADT: 200
Bon Terre Blvd
GoodOver: NEW RIVER BAYOU
1.5 MI E I-10-LA 429 JCT, Ascension, LA
Built 1988 Load: 31.1 t ADT: 75
Linder Road
GoodOver: Canal
0.1 MI. N. of LA 1026, Livingston, LA
Built 2020 Load: 31.1 t ADT: 3,615
Austin St
GoodOver: COBURN CREEK
.1 MI. N OF LA 10, Washington, LA
Built 1999 Load: 31.1 t ADT: 920
26TH ST
GoodOver: CA-BUTLER CANAL #17
0.15 MI W OF SHARON ST, Jefferson, LA
Built 2010 Load: 31.4 t
AMES BLVD
GoodOver: EIGHTY ARPENT CANAL
0.6M SOUTH OF LAPALCO, Jefferson, LA
Built 1992 Load: 31.4 t ADT: 15,000
ST JOHN BRIDGE
GoodOver: BAYOU LAFOURCHE
0.01 MI S. OF LA 308, Lafourche, LA
Built 2006 Load: 31.4 t ADT: 2,824
Choctaw Rd
GoodOver: LEGENDRE CANAL
0.85 M WEST OF LA 20, Lafourche, LA
Built 1991 Load: 31.4 t ADT: 1,206
EAGLE ST
GoodOver: METAIRIE RELIEF CANAL
0.04 MI NE OF STROELITZ S, Orleans, LA
Built 1990 Load: 31.4 t ADT: 1,000
OLE COLONY RD
GoodOver: COULEE
0.2 MI W. OF LA 3073, Lafayette, LA
Built 2014 Load: 31.4 t ADT: 1,929
PARISH ROUTE 18
GoodOver: CHARENTON FLOODGATE
CHARENTON LEVEE, St. Mary, LA
Built 1951 Load: 31.4 t ADT: 100
LA3049
GoodOver: CREEK
5.7 MI S OF LA 173, Caddo, LA
Built 2020 Load: 31.4 t ADT: 399
WILLIS STREET
GoodOver: MARTIN L KING DR DITCH
0.11 MI WEST OF LINEAR ST, Caddo, LA
Built 1996 Load: 31.4 t ADT: 161
US0167
GoodOver: BAYOU DARBONNE RELIEF
11.29 MI N of US 80, Lincoln, LA
Built 2009 Load: 31.4 t ADT: 422
US0165
GoodOver: BAYOU SERPENT
3.8 MI S of LA 3086, Jefferson Davis, LA
Built 2008 Load: 31.4 t ADT: 8,453
Hamburg Crossing
GoodOver: BAYOU DES GLAISES
0.18 MILES EAST OF LA 451, Avoyelles, LA
Built 2015 Load: 31.4 t ADT: 100
Beauregard Rd
GoodOver: BAYOU CHOUPIQUE
0.94 MI. EAST OF LEVEE RD, Avoyelles, LA
Built 1994 Load: 31.4 t ADT: 150
Camp Hardtner Rd
GoodOver: Fish Creek
5.54 M. S. OF JCT. US 165, Grant, LA
Built 2011 Load: 31.4 t ADT: 100
Roddy Rd
GoodOver: BLACK BAYOU
1.3 MI NE LA 441 US 61JCT, Ascension, LA
Built 1984 Load: 31.4 t ADT: 500
LA0042
GoodOver: OLD WARDS CREEK
0.3 MILES WEST OF US 61 A, East Baton Rouge, LA
Built 2011 Load: 31.4 t ADT: 12,019
LA0042
GoodOver: OLD WARDS CREEK
0.3 MILES WEST OF US61 AI, East Baton Rouge, LA
Built 2011 Load: 31.4 t ADT: 8,250
LA0042
GoodOver: DIVERSION CANAL
0.5 MILES WEST OF US61 AI, East Baton Rouge, LA
Built 2011 Load: 31.4 t ADT: 12,019
LA0042
GoodOver: DIVERSION CANAL
0.5 MILES WEST OF US61 AI, East Baton Rouge, LA
Built 2011 Load: 31.4 t ADT: 8,250
I0012
GoodOver: I-12 OVER LA 1032
I0012, Livingston, LA
Built 1970 Load: 31.4 t ADT: 37,161
US0090
GoodOver: DRAIN CANAL
2.8 MI WEST OF US 90B, Jefferson, LA
Built 1953 Load: 31.8 t ADT: 49,920
Showing 7,401-7,450 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.