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
BREITHAUPT CUTOFF
GoodOver: RHINEHART CREEK
1.1 MI NE OF US 84, LaSalle, LA
Built 2023 Load: 39.9 t ADT: 229
US0084
GoodOver: OLD RIVER
1.1 MI EAST OF LA 8, LaSalle, LA
Built 2000 Load: 39.9 t ADT: 2,479
LA0074
GoodOver: Narcisse Bayou
0.1 Mi E of US 61, Ascension, LA
Built 2022 Load: 39.9 t ADT: 10,765
LA0044
GoodOver: PANAMA CANAL
APPROX. 2.0 MI. SOUTH OF, Ascension, LA
Built 2008 Load: 39.9 t ADT: 13,542
Main St.
GoodOver: WHITES BAYOU
3.7 MILES EAST OF LA.964, East Baton Rouge, LA
Built 1976 Load: 39.9 t ADT: 17,300
I0110
GoodOver: CHIPPEWA ST. ON RAMP (SB
I0110, East Baton Rouge, LA
Built 1970 Load: 39.9 t ADT: 8,250
North Blvd
GoodOver: NORTH BLVD. R.R. OVERPAS
0.2 MI. E. OF I110, East Baton Rouge, LA
Built 2006 Load: 39.9 t
Port Hudson-Pride
GoodOver: DOYLE BAYOU
1.3 M W of LA 67, East Baton Rouge, LA
Built 2006 Load: 39.9 t ADT: 1,037
Bank St
GoodOver: Lewis Creek
1.0 Mi S of LA 10, East Feliciana, LA
Built 2022 Load: 39.9 t ADT: 375
LA0067
GoodOver: WW WOODLAND CREEK
1.2 M NE of LA 432&LA 67, East Feliciana, LA
Built 1978 Load: 39.9 t ADT: 3,320
LA0030
GoodOver: BAYOU PAUL
LA0030, Iberville, LA
Built 1966 Load: 39.9 t ADT: 17,089
I0010
GoodOver: BRIDGE 250 EBL
1.3 M E of LA 77, Iberville, LA
Built 1974 Load: 39.9 t ADT: 58,734
I0010
GoodOver: BR 250 WESTBOUND
1.3 M E of LA 77, Iberville, LA
Built 1974 Load: 39.9 t ADT: 41,644
Enterprise Blvd
GoodOver: BAYOU PLAQUEMINE
0.3 MI S/E OF LA 77, Iberville, LA
Built 2005 Load: 39.9 t ADT: 3,094
US0061
GoodOver: Blind River
0.1 Mi N. of LA 3274, St. James, LA
Built 1978 Load: 39.9 t ADT: 14,837
US0061
GoodOver: TCHACKCHOU BAYOU
US0061, St. James, LA
Built 1978 Load: 39.9 t ADT: 14,957
US0061
GoodOver: DRAIN CANAL
6.24 M W of LA 641, St. James, LA
Built 1978 Load: 39.9 t ADT: 14,957
Scivicque Rd
GoodOver: GRAYS CREEK
7.5 MI SE OF LA 3002 EXIT, Livingston, LA
Built 1985 Load: 39.9 t ADT: 250
Richardson Rd
GoodOver: BREED CREEK BRIDGE
.7 SO OF LA 42, Livingston, LA
Built 1997 Load: 39.9 t ADT: 150
Varnado Rd
GoodOver: HORNSY CREEK
4.0 MI NW OF I-12 SATSUMA, Livingston, LA
Built 1985 Load: 39.9 t ADT: 300
Old C.C. Rd
GoodOver: BLOOD RIVER BRIDGE
0.8 SO LA 1064 ON LA 43, Livingston, LA
Built 1997 Load: 39.9 t ADT: 200
Lindsey Rd
GoodOver: JOSEPH BRANCH
0.6 MI. NORTH OF LA 10, St. Helena, LA
Built 2012 Load: 39.9 t ADT: 300
I0012
GoodOver: EAST BEDICO CREEK
I0012, St. Tammany, LA
Built 1975 Load: 39.9 t ADT: 53,386
I0012
GoodOver: I-12 OVER I-10
I0010, St. Tammany, LA
Built 1970 Load: 39.9 t ADT: 78,215
AVE LOUIS QUATROZE
GoodOver: PIPE AT CREEK
.9 MI W US 190-VERSAILLES, St. Tammany, LA
Built 1996 Load: 39.9 t ADT: 300
LA0038
GoodOver: TERRYS CREEK
LA0038, Tangipahoa, LA
Built 1974 Load: 39.9 t ADT: 3,120
LA3234
GoodOver: PONCHATOULA CREEK
1.1 MI EAST US 51 INTER., Tangipahoa, LA
Built 1995 Load: 39.9 t ADT: 18,303
LA0010
GoodOver: BOGUE LUSA CREEK
00.04 EAST OF LA 62, Washington, LA
Built 2013 Load: 39.9 t ADT: 5,765
LA0010
GoodOver: COBURN CREEK
1 MILE EAST OF LA 21, Washington, LA
Built 2013 Load: 39.9 t ADT: 6,499
N. Royal St
GoodOver: NORTH ROYAL ST OVER CREE
0.2 MILE NORTH OF REDMOND, Washington, LA
Built 2007 Load: 39.9 t ADT: 225
Maryland Dr
GoodOver: ELLINGTON CANAL
2.0 MI. S. OF US 90, St. Charles, LA
Built 2009 Load: 40.2 t
S HOLLYWOOD RD
GoodOver: BAYOU BLACK
0.01 EAST OF LA 311, Terrebonne, LA
Built 1996 Load: 40.2 t ADT: 7,492
I0220
GoodOver: GROUND
I-49 AT I-220, Caddo, LA
Built 2018 Load: 40.2 t ADT: 87,567
I0049
GoodOver: LA 2
I-49 / LA 2 INTG., Caddo, LA
Built 2014 Load: 40.2 t ADT: 6,846
Old LA 539
GoodOver: BULL BAYOU
0.58 MILES NE OF LA 191, De Soto, LA
Built 2004 Load: 40.2 t ADT: 115
Jack Martin Rd
GoodOver: BRUSHY CREEK
1.6 MI N OF HWY 532, Webster, LA
Built 2004 Load: 40.2 t ADT: 293
VIRGIL RD
GoodOver: SMITH CREEK
0.9 MI SW of LA 151, Lincoln, LA
Built 2003 Load: 40.2 t ADT: 225
HODGE RD
GoodOver: HARPER BAYOU
3.9 MI S of LA 602, Madison, LA
Built 1993 Load: 40.2 t ADT: 136
SUNSHINE RD
GoodOver: COFFEE BAYOU
9.6 MI S of LA 835, Morehouse, LA
Built 2004 Load: 40.2 t ADT: 25
LUM DAY RD
GoodOver: PRATT BRAKE
0.2 MI S of LA 142, Morehouse, LA
Built 2004 Load: 40.2 t ADT: 200
TOM STURDIVANT RD
GoodOver: WILDERS CREEK
1.0 MI SE of LA 546, Ouachita, LA
Built 2005 Load: 40.2 t ADT: 350
RUGGS BLUFF RD
GoodOver: FRANCIS CREEK
4.6 MI NW of LA 15, Union, LA
Built 2005 Load: 40.2 t ADT: 192
KINGSLEY ST
GoodOver: GUM SLOUGH
0.05 MI N of BUS 90, Calcasieu, LA
Built 2003 Load: 40.2 t ADT: 370
LA1220
GoodOver: LITTLE RIVER
2.90 MI. EAST OF LA 119, Natchitoches, LA
Built 2010 Load: 40.2 t ADT: 99
Johnson Chute Rd
GoodOver: JOHNSON CHUTE BAYOU
3.43 MI. WEST OF LA 1, Natchitoches, LA
Built 1984 Load: 40.2 t ADT: 285
US0171
GoodOver: BAYOU TORO RELIEF
5.22 MI. NORTH OF LA 392, Sabine, LA
Built 2004 Load: 40.2 t ADT: 3,483
LA0008
GoodOver: CREEK
3.0 MI. E OF E INT. LA 46, Vernon, LA
Built 2012 Load: 40.2 t ADT: 5,978
LA0008
GoodOver: MENACE CREEK
0.3 MI. E OF E INT. LA 46, Vernon, LA
Built 2012 Load: 40.2 t ADT: 5,978
Scates Rd
GoodOver: DEER CREEK
0.92 MI E of Hwy 15, Franklin, LA
Built 1998 Load: 40.2 t ADT: 36
LA0068
GoodOver: MCCLAINS BRANCH
3.11 MILES NORTH OF LA 10, East Feliciana, LA
Built 2011 Load: 40.2 t ADT: 825
Showing 9,801-9,850 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.