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
COMRADE RD
GoodOver: ALLEN BRANCH
1.56 M. E. OF LA 465, Vernon, LA
Built 1992 Load: 33.7 t ADT: 250
Rushing St
GoodOver: CANAL
0.1M E of LA165, Caldwell, LA
Built 1988 Load: 33.7 t ADT: 250
Fisher Rd
GoodOver: CREEK
0.2 MI NW OF REED RD, Caldwell, LA
Built 1988 Load: 33.7 t ADT: 220
Boggy Bayou Rd
GoodOver: BOGGY BAYOU
LOGMI 1.3 E OF LA129, Concordia, LA
Built 1993 Load: 33.7 t ADT: 300
Huggins Lane
GoodOver: TURKEY CREEK
LOGMI 3.56 FR 137 TO ODE, Franklin, LA
Built 1994 Load: 33.7 t ADT: 170
Jim Albert Rd
GoodOver: DEER CREEK
0.01M FROM 496 TO 527, Franklin, LA
Built 1992 Load: 33.7 t ADT: 30
Hollywood Lake Lp
GoodOver: CREEK
.54 MI W of Frnch Trn Rd, Franklin, LA
Built 1987 Load: 33.7 t ADT: 70
WPA Rd
GoodOver: TURKEY CREEK
1.96 mi. S of LA 132, Franklin, LA
Built 1994 Load: 33.7 t ADT: 40
Greens Creek Rd
GoodOver: GREENS CREEK
LOG MI. 1.96 FR 319 TO OD, LaSalle, LA
Built 2009 Load: 33.7 t ADT: 150
Newlight Rd
GoodOver: TENSAS RIVER
0.06 MI N OF LA 4, Tensas, LA
Built 1999 Load: 33.7 t ADT: 92
Woodville St
GoodOver: DRAIN CREEK
1 MI. W. OF LA 67, East Feliciana, LA
Built 2006 Load: 33.7 t ADT: 84
Enterprise Blvd
GoodOver: DRAINAGE CANAL
2.7 MI. NORTH OF LA 77 EN, Iberville, LA
Built 2007 Load: 33.7 t ADT: 3,094
Musson Ln
GoodOver: LEVEE BAR PIT
1.2 MILES WEST OF LA.76 O, Iberville, LA
Built 2014 Load: 33.7 t ADT: 15
US0190-B
GoodOver: INTERSTATE 10
1.85 MILES EAST OF JCT US, St. Tammany, LA
Built 2008 Load: 33.7 t ADT: 2,496
LA0025
GoodOver: DRAIN
1.6 M N OF LA 38, Washington, LA
Built 1963 Load: 33.7 t ADT: 2,272
Luke Pace Rd
GoodOver: STUBBS CREEK
.80 TENTHS E JCT 438&1070, Washington, LA
Built 2002 Load: 33.7 t ADT: 403
Bayou Rd
GoodOver: Murphy Canal
0.01 Mi. E. of LA 3017, Jefferson, LA
Built 2020 Load: 34.0 t ADT: 400
WICHERS DR
GoodOver: AVENUE D CANAL
.35 SOUTH OF W.B. EXPWY, Jefferson, LA
Built 1990 Load: 34.0 t
MEDICAL CENTER BLV
GoodOver: AVENUE D CANAL
.30 MI SO. OF W.B. EXPWY, Jefferson, LA
Built 1990 Load: 34.0 t
W. Metairie Ave
GoodOver: CANAL NUMBER 5
0.01 M N OF W. METAIRIE A, Jefferson, LA
Built 2000 Load: 34.0 t
MacArthur BLVD
GoodOver: MAGELLAN CANAL
0.1MI.W.OF HOLIDAY D, Orleans, LA
Built 1960 Load: 34.0 t
MARIETTA DR
GoodOver: 20 ARPENT CANAL
0.3 MI N OF LA 39, St. Bernard, LA
Built 2015 Load: 34.0 t ADT: 516
THELMA ST
GoodOver: 20 ARPENT CANAL
0.4 MI N OF LA 39, St. Bernard, LA
Built 2015 Load: 34.0 t ADT: 195
LA0014
GoodOver: DELCHAMBRE CANAL
0.32 MI EAST OF LA 330, Iberia, LA
Built 2001 Load: 34.0 t ADT: 12,347
Landsdowne Way
GoodOver: DRAIN
0.2 Mi SE of Albion Way, Lafayette, LA
Built 2008 Load: 34.0 t ADT: 128
Billeaux Road
GoodOver: Carencro Bayou
1.08 Miles E of LA 93, St. Landry, LA
Built 2018 Load: 34.0 t ADT: 680
LA0182
GoodOver: I-49
1 Mi. West of LA 760-2, St. Landry, LA
Built 1971 Load: 34.0 t ADT: 3,100
RICEVILLE RD
GoodOver: COULEE
2.3 MI. W. OF LA 91, Vermilion, LA
Built 2016 Load: 34.0 t ADT: 110
Juniper Rd
GoodOver: Sledge Canal
2.8 Mi E. of La 3093, Vermilion, LA
Built 2022 Load: 34.0 t ADT: 80
LA0530
GoodOver: I-49
2.73 M. W. OF US 71, Caddo, LA
Built 2013 Load: 34.0 t ADT: 177
I0049
GoodOver: HOSSTON RIVER RD.
2.14 M. N. OF US 71, Caddo, LA
Built 2014 Load: 34.0 t ADT: 53,023
I0049
GoodOver: HOSSTON RIVER RD.
2.14 M. NORTH OF US 71, Caddo, LA
Built 2014 Load: 34.0 t ADT: 6,846
Bostwick Rd
GoodOver: CHOCTAW BAYOU
0.7 MI WEST OF LA 173, Caddo, LA
Built 2013 Load: 34.0 t ADT: 180
Greenwood Cem Rd
GoodOver: TRIB. TO CYPRESS BAYOU
0.5 MILES EAST OF LA 169, Caddo, LA
Built 2007 Load: 34.0 t ADT: 80
Nubin Ridge Rd
GoodOver: MOCCASIN CREEK
1.6 MI. EAST OF LA 481, De Soto, LA
Built 2005 Load: 34.0 t ADT: 50
Nursery Rd
GoodOver: TRIB TO BRUSHY CREEK
0.80 MILES EAST OF US 371, Webster, LA
Built 2011 Load: 34.0 t ADT: 435
Old Arcadia Rd
GoodOver: CROWS CREEK
4.2 MI E OF US 79, Webster, LA
Built 2010 Load: 34.0 t ADT: 263
MITCHINER RD
GoodOver: LITTLE COLEWA CREEK
4.1 MI W of LA 17, Richland, LA
Built 2009 Load: 34.0 t ADT: 175
BIG RIDGE RD
GoodOver: CREEK
1.8 MI E of LA 561, Richland, LA
Built 2011 Load: 34.0 t ADT: 100
SMALLING RD
GoodOver: CYPRESS CREEK
1.7 MI W of LA 183, Richland, LA
Built 2011 Load: 34.0 t ADT: 200
LA0082
GoodOver: CANAL
17.9 MI E of LA 27, Cameron, LA
Built 2000 Load: 34.0 t ADT: 2,899
LA0082
GoodOver: CANAL
16.7 MI W OF LA3147, Cameron, LA
Built 2002 Load: 34.0 t ADT: 2,899
TV TOWER RD.
GoodOver: SERPENT BAYOU
1.6 MI E of LA 383, Jefferson Davis, LA
Built 2013 Load: 34.0 t ADT: 575
Voorhies Crossing
GoodOver: BAYOU DES GLAISES
0.01 MI. EAST OF LA 451, Avoyelles, LA
Built 2013 Load: 34.0 t ADT: 150
Main St
GoodOver: BAYOU DES GLAISES
0.1 MI. NORTH OF LA 114, Avoyelles, LA
Built 2010 Load: 34.0 t ADT: 410
LA0001
GoodOver: ROSEAU BAYOU
0.08 MI. NORTH OF LA 114, Avoyelles, LA
Built 1965 Load: 34.0 t ADT: 4,686
Moses Ln
GoodOver: DRAINAGE CANAL
0.7 MI. EAST OF LA 1, Avoyelles, LA
Built 1998 Load: 34.0 t ADT: 150
Grays Creek Rd
GoodOver: MOCCASIN BRANCH
1.36 MILES N JCT LA 1241, Grant, LA
Built 2009 Load: 34.0 t ADT: 250
Good Hope Rd
GoodOver: BAYOU LUCE
2.1 MI SOUTH OF LA 120, Natchitoches, LA
Built 2012 Load: 34.0 t ADT: 76
Good Hope Rd
GoodOver: KISATCHIE BAYOU
1.1 MI. SOUTH OF LA 120, Natchitoches, LA
Built 2012 Load: 34.0 t ADT: 76
Showing 8,601-8,650 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.