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
Loyola Dr
GoodOver: CANAL NO. 13
.4 MI. N. OF VETERAN, Jefferson, LA
Built 1970 Load: 32.4 t
Oaklawn Dr
GoodOver: CANAL NO. 2
1.5 MI N OF VETERANS, Jefferson, LA
Built 1970 Load: 32.4 t
Bonnabel BLVD
GoodOver: CANAL 2
0.8 MI. N.OF VETERAN, Jefferson, LA
Built 1972 Load: 32.4 t ADT: 5,000
W Esplanade Ave S
GoodOver: BONNABEL CANAL
0.4 MI.E.OF CAUSEWAY BLVD, Jefferson, LA
Built 1995 Load: 32.4 t
W Esplanade Ave S
GoodOver: CANAL NO 2
0.55 MI W OF SEVERN AVE, Jefferson, LA
Built 1960 Load: 32.4 t
CAUSEWAY BLVD
GoodOver: CANAL 2
0.01 MI N. OF ESPLAN, Jefferson, LA
Built 1971 Load: 32.4 t ADT: 12,200
SEVERN AVE
GoodOver: CANAL NO 2
2.5 MI W OF CAUSEWAY BLVD, Jefferson, LA
Built 1960 Load: 32.4 t
Edenborn Ave
GoodOver: CANAL NO.2
1.5 MI N OF VETERANS, Jefferson, LA
Built 1970 Load: 32.4 t
W Esplanade Ave S
GoodOver: CANAL NO. 2
1.2 MI. N. OF VETERA, Jefferson, LA
Built 1975 Load: 32.4 t
W Esplanade Ave S
GoodOver: CANAL NO 2
0.15 MI W OF SEVERN AVE, Jefferson, LA
Built 1960 Load: 32.4 t
Transcontinental D
GoodOver: CANAL NUMBER 2
0.7MI.N.OF VETERANS, Jefferson, LA
Built 1960 Load: 32.4 t ADT: 26,950
W Esplanade Ave S
GoodOver: CANAL NO. 2
0.0 MI.FROM W.ESPLANADE, Jefferson, LA
Built 1983 Load: 32.4 t
ESPLANADE X-OVER
GoodOver: CANAL NO.2
1.4 Mi E of LA 49, Jefferson, LA
Built 1983 Load: 32.4 t
Power BLVD
GoodOver: CANAL 2
0.2EAST OF WILLIAMS, Jefferson, LA
Built 1990 Load: 32.4 t ADT: 14,000
Avron BLVD
GoodOver: CANAL
0.04 MI W OF LAKE VILLA D, Jefferson, LA
Built 2005 Load: 32.4 t ADT: 1,000
Esplanade U-turn
GoodOver: CANAL NO. 2
0.2 WEST OF LA 49, Jefferson, LA
Built 1994 Load: 32.4 t
Wilson Dr
GoodOver: CANAL NO. 1
0.80 MI N. OF W ESPLANADE, Jefferson, LA
Built 1964 Load: 32.4 t
Lake Trail Dr
GoodOver: CANAL NO 1
0.45 EAST OF LA 49, Jefferson, LA
Built 1990 Load: 32.4 t ADT: 1,000
Alabama Ave
GoodOver: CANAL NO. 1
.4 MI WEST OF LA 49, Jefferson, LA
Built 1990 Load: 32.4 t
Joe Yenni BLVD
GoodOver: DUNCAN CANAL
0.6M WEST OF WILLIAMS BLV, Jefferson, LA
Built 1992 Load: 32.4 t ADT: 1,000
Sal Lentini PKWY
GoodOver: CANAL NO. 17
1.9M WEST OF LA 49, Jefferson, LA
Built 1990 Load: 32.4 t
Plaza Dr
GoodOver: CITRUS CANAL
.5 MILES SOUTH I-10, Orleans, LA
Built 1980 Load: 32.4 t
COPERNICUS ST
GoodOver: ALGIERS CANAL
0.5 MILES SOUTH OF US 90B, Orleans, LA
Built 1993 Load: 32.4 t
US0090
GoodOver: DRAIN CANAL
6.0 MILES SOUTH OF I-610, Orleans, LA
Built 1960 Load: 32.4 t ADT: 49,920
AIRPORT ACCESS RD
GoodOver: CANAL #5
1.0 MI NORTH OF US 61, Jefferson, LA
Built 1973 Load: 32.4 t
General de Gaulle
GoodOver: NORMAN CANAL
2.3 MI SOUTHEAST OF US 90, Orleans, LA
Built 1975 Load: 32.4 t
Dwyer BLVD
GoodOver: BENSON CANAL
1.- MI. S. OF 1-10, Orleans, LA
Built 1992 Load: 32.4 t
DWYER RD
GoodOver: CITRUS CANAL
1.2 MI. S. OF I-10, Orleans, LA
Built 1992 Load: 32.4 t
France Rd
GoodOver: FLORIDA AVE CANAL
1.4 MI. E. OF I-10, Orleans, LA
Built 2013 Load: 32.4 t
US0090
GoodOver: METAIRIE RELIEF CANAL
0.2 MI S OF LA 3139, Orleans, LA
Built 2018 Load: 32.4 t ADT: 28,615
Esplanade Ave
GoodOver: BAYOU ST. JOHN
0.02 MI S. OF CITY PK AVE, Orleans, LA
Built 1985 Load: 32.4 t
US0090
GoodOver: DRAIN DITCH
1 MILE WEST OF DAVIS POND, St. Charles, LA
Built 1999 Load: 32.4 t ADT: 49,920
US0090
GoodOver: DAVIS POND DIVERSION
3.0 MI EAST OF LA 632, St. Charles, LA
Built 2002 Load: 32.4 t ADT: 49,920
US0061
GoodOver: CONC BOX XING
3.6 MI WEST OF JEFFERSON, St. Charles, LA
Built 1942 Load: 32.4 t ADT: 23,719
US0061
GoodOver: CONC BOX XING
4.4 MI WEST OF JEFFERSON, St. Charles, LA
Built 1942 Load: 32.4 t ADT: 23,719
US0061
GoodOver: CONC BOX XING
4.9 MI WEST OF JEFFERSON, St. Charles, LA
Built 1942 Load: 32.4 t ADT: 23,719
US0061
GoodOver: CONC BOX XING
5.2 MI WEST OF JEFFERSON, St. Charles, LA
Built 1942 Load: 32.4 t ADT: 23,719
LIBERTY ST BRIDGE
GoodOver: BAYOU TERREBONNE
0.2 MI E OF LA 182, Terrebonne, LA
Built 1994 Load: 32.4 t ADT: 14,700
LA0311
GoodOver: LITTLE BAYOU BLACK
1.15 MI SOUTH OF LA 312, Terrebonne, LA
Built 1951 Load: 32.4 t ADT: 11,582
ARAGON RD
GoodOver: DRAIN CANAL
.35 MI NORTH OF LA 58, Terrebonne, LA
Built 1972 Load: 32.4 t ADT: 1,556
LA1115
GoodOver: CREEK
0.52 MI EAST OF LA 91, Acadia, LA
Built 2014 Load: 32.4 t ADT: 377
Lafosse Rd.
GoodOver: Drain
1.33 MI E. OF LA 92, Acadia, LA
Built 2012 Load: 32.4 t ADT: 48
LA0013
GoodOver: CREEK
4.7 MI N of LA 1121, Acadia, LA
Built 1960 Load: 32.4 t ADT: 5,380
LA0097
GoodOver: CREEK
0.1 MI SOUTH OF LA 3068, Acadia, LA
Built 1956 Load: 32.4 t ADT: 1,175
LA0091
GoodOver: CREEK
1.4MI SOUTH OF LA 1115, Acadia, LA
Built 1950 Load: 32.4 t ADT: 1,947
LA0091
GoodOver: CREEK
.1MI SOUTH OF LA 1115, Acadia, LA
Built 1950 Load: 32.4 t ADT: 1,947
LA0091
GoodOver: FEERE CANAL
.3 MI NORTH OF LA 1115, Acadia, LA
Built 1950 Load: 32.4 t ADT: 1,947
LA0365
GoodOver: COLES GULLY
1.0 MI WEST OF LA 1109, Acadia, LA
Built 1963 Load: 32.4 t ADT: 1,570
LA0092
GoodOver: CANAL
.8 MI EAST OF LA 1124, Acadia, LA
Built 1975 Load: 32.4 t ADT: 1,274
LA0367
GoodOver: CREEK
0.6 MI NOIRTH OF LA 1110, Acadia, LA
Built 1961 Load: 32.4 t ADT: 2,465
Showing 7,601-7,650 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.