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
NFSR 558
GoodOver: CREEK
NO DATA ENTERED, Grant, LA
Built 2003 Load: 23.7 t ADT: 30
NFSR 558
GoodOver: IATT CREEK
NO DATA ENTERED, Winn, LA
Built 2005 Load: 23.7 t ADT: 30
NFSR 558
GoodOver: NO DATA ENTERED
NO DATA ENTERED, Grant, LA
Built 2007 Load: 23.7 t ADT: 30
MARTHAVILLE RD
GoodOver: BAYOU DUPONT
MARTHAVILLE ROAD, Sabine, LA
Built 2000 Load: 23.7 t ADT: 170
LA0008
GoodOver: COMRADE CREEK
6.09 MI. E OF E JCT. LA 4, Vernon, LA
Built 2012 Load: 23.7 t ADT: 5,978
LA0928
GoodOver: LA 928 OVER I-10
I0010, Ascension, LA
Built 1975 Load: 23.7 t ADT: 5,446
Central Throughway
GoodOver: DRAIN
0.5 MI. N. OF US190, East Baton Rouge, LA
Built 2011 Load: 23.7 t ADT: 10,400
N Stewart Ln
GoodOver: DRAINAGE CREEK
1.6 MI SW LA67 LA422 JCT, East Feliciana, LA
Built 1999 Load: 23.7 t ADT: 14
LA0437
GoodOver: DRAIN
0.95 MI. NO. LA 25 INTER., St. Tammany, LA
Built 1997 Load: 23.7 t ADT: 4,871
Reid Rd
GoodOver: LITTLE NATALBANY RIVER
2.5 MI SW OF JCT OF 16&51, Tangipahoa, LA
Built 2002 Load: 23.7 t ADT: 32
Stateline Rd
GoodOver: TERRYS CREEK
4.3 MI NW OF JCT 51 &1054, Tangipahoa, LA
Built 2002 Load: 23.7 t ADT: 40
Claiborne St
GoodOver: COBURN CREEK
0.4 MILES NORTH OF LA 10, Washington, LA
Built 2010 Load: 23.7 t ADT: 520
Zaunbrecher Rd.
GoodOver: COULEE
4.4 Mi W of La 91, Vermilion, LA
Built 2015 Load: 23.8 t ADT: 12
COONEY BONNETT RD
GoodOver: ROGERS CREEK
3.0 MI. S. OF LA 34, Ouachita, LA
Built 2018 Load: 23.9 t ADT: 183
Whitney AVE
GoodOver: Verret Canal
1.5 Mi S of US 90, Jefferson, LA
Built 2004 Load: 24.0 t ADT: 250
LAPALCO BLVD
GoodOver: WEYRAUCH CANAL
0.6MI.E.OF MANHATTAN, Jefferson, LA
Built 1976 Load: 24.0 t ADT: 30,000
LA0428
GoodOver: ALGIERS CANAL
1.0 MILES SOUTH OF US 90B, Orleans, LA
Built 1987 Load: 24.0 t ADT: 7,178
Ridge Rd.
GoodOver: DRAINAGE CANAL
.3 MI E of Rue Du Beller, Lafayette, LA
Built 1997 Load: 24.0 t ADT: 13,000
LA0083
GoodOver: KELLY CANAL
2.80 MI WEST OF US 90, St. Mary, LA
Built 1954 Load: 24.0 t ADT: 3,078
LA0700
GoodOver: HUNTER CANAL
0.5 MI E of LA 35, Vermilion, LA
Built 1955 Load: 24.0 t ADT: 1,685
Dutch John Rd
GoodOver: Dutch John Branch
0.6 MI SE OF LA 2, Bossier, LA
Built 1994 Load: 24.0 t ADT: 90
LA0146
GoodOver: L&NW RAILROAD
0.06 MI E OF US 79, Claiborne, LA
Built 2010 Load: 24.0 t ADT: 1,360
OAK ST
GoodOver: COON CREEK
MONROE, Ouachita, LA
Built 1993 Load: 24.0 t ADT: 200
LA 1256
GoodOver: DRAIN
.04 MI N of LA 27, Calcasieu, LA
Built 1984 Load: 24.0 t ADT: 20,278
LA0014
GoodOver: JACQUES COULEE
1.05 MI EAST OF LA 27, Calcasieu, LA
Built 1959 Load: 24.0 t ADT: 2,023
LA0933
GoodOver: RODDY BAYOU
0.9 Mi. S. of LA 42, Ascension, LA
Built 2007 Load: 24.0 t ADT: 6,131
Como Rd
GoodOver: SANDERS CREEK
4.2 MI W OF LA 968, West Feliciana, LA
Built 2018 Load: 24.0 t ADT: 19
US0190
GoodOver: AMITE RIVER
3 MILES WEST OF LA 1032, Livingston, LA
Built 2009 Load: 24.0 t ADT: 10,200
US0190
GoodOver: AMITE RIVER
3 MILES WEST OF LA 1032, Livingston, LA
Built 2010 Load: 24.0 t ADT: 23,971
LA0043
GoodOver: CREEK
0.41 MI. SOUTH OF LA 10, St. Helena, LA
Built 1947 Load: 24.0 t ADT: 2,252
W Metairie Ave
GoodOver: Canal #5
0.3 Miles W of David D, Jefferson, LA
Built 2002 Load: 24.3 t ADT: 387
Leman Rd
GoodOver: MARSH BAYOU
0.90 Mi N of La 106, Evangeline, LA
Built 2004 Load: 24.3 t ADT: 130
Dominiques Rd
GoodOver: Bayou Rouge
0.02 Mi. N. of La 107, St. Landry, LA
Built 2005 Load: 24.3 t ADT: 125
Pleasant Hill Ch
GoodOver: SALT CREEK
0.05 MI. EAST OF LA 9, Natchitoches, LA
Built 2000 Load: 24.3 t ADT: 132
LA1216
GoodOver: DITCH
4.1 MI EAST OF US 171, Sabine, LA
Built 1966 Load: 24.3 t ADT: 209
Countrywood Rd
GoodOver: WHITE OAK CREEK
1.01M NW of LA 846, Caldwell, LA
Built 1996 Load: 24.3 t ADT: 40
Mt. Sinai
GoodOver: TROUT CREEK
LOGMI 4.60 FR 518 TO 450, LaSalle, LA
Built 1998 Load: 24.3 t ADT: 180
Zimmer Creek Rd
GoodOver: Thunderbird Creek
0.6 m North of US 84E, LaSalle, LA
Built 1997 Load: 24.3 t ADT: 110
Stilt St
GoodOver: MONTE SANO BAYOU
.30 MI EAST OF HIWAY 19, East Baton Rouge, LA
Built 1994 Load: 24.3 t ADT: 177
Pride-Baywood Rd
GoodOver: COTTON CREEK
3.4 MI. E. of LA 409, East Baton Rouge, LA
Built 1968 Load: 24.3 t ADT: 1,118
W. 19th Ave
GoodOver: MILE BRANCH
0.4 MILE EAST OF JOHNSON, St. Tammany, LA
Built 1990 Load: 24.3 t ADT: 300
LA0020
GoodOver: DRAINAGE CANAL
4.24 MI NORTH OF LA 308, Lafourche, LA
Built 1968 Load: 24.5 t ADT: 20,091
DOTSAY RD
GoodOver: COULEE BATON CANAL
0.4 Mi W of Lionel Rd, Vermilion, LA
Built 2018 Load: 24.5 t ADT: 133
Melrose Rd
GoodOver: GALLEQUE COULEE
0.3 Mi W of La 335, Vermilion, LA
Built 2012 Load: 24.5 t ADT: 77
Wright Rd
GoodOver: COULEE
2.8 Mi S of La 14, Vermilion, LA
Built 1969 Load: 24.5 t ADT: 150
Chalybeate Spr Rd.
GoodOver: MARTIN CREEK Trib
2.4 Mi. N. of LA 157, Bossier, LA
Built 2017 Load: 24.5 t ADT: 180
WISE RD
GoodOver: FIVE MI CREEK
2.2 MI SE OF LA 545, Lincoln, LA
Built 2018 Load: 24.5 t ADT: 152
LAPINE RD
GoodOver: CPRESS CREEK
5.3 MI. S. OF LA 34, Ouachita, LA
Built 2018 Load: 24.5 t ADT: 212
LA0069
GoodOver: FALSE BRANCH
5.6 M N of LA 70, Iberville, LA
Built 1962 Load: 24.5 t ADT: 3,301
Freeland Rd
GoodOver: Hammer Creek
0.4 Mi. E. of LA 966, West Feliciana, LA
Built 2022 Load: 24.5 t ADT: 40
Showing 6,751-6,800 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.