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
LA0534
FairOver: DRAIN
3.0 MI NORTH OF LA 534-S, Claiborne, LA
Built 1974 Load: 11.0 t ADT: 118
SPRING CREEK RD
FairOver: WAFER CREEK
6 MI SW VIENNA, Lincoln, LA
Built 1978 Load: 11.0 t ADT: 127
COOPER LAKE RD
FairOver: CYPRESS BAYOU
0.2 MI NW of LA 830-3, Morehouse, LA
Built 1999 Load: 11.0 t ADT: 1,250
Pea Ridge Rd
FairOver: BLOOD RIVER
3.3 MILES NE OF 43 EXIT, Livingston, LA
Built 2005 Load: 11.0 t ADT: 400
Keen Rd
FairOver: ABITA RIVER
0.32M SOUTH OF LA 435, St. Tammany, LA
Built 1993 Load: 11.0 t ADT: 51
House Cr. Rd
FairOver: HOUSE CREEK
2.0 M NORTH OF LA 40, St. Tammany, LA
Built 1991 Load: 11.0 t ADT: 150
Joseph Rd
FairOver: BOGUE FALAYA RIVER
1.3 MI EAST OF LA 25, St. Tammany, LA
Built 1992 Load: 11.0 t ADT: 100
ADEMA LN
FairOver: DRAINAGE CANAL
0.0 S OF SR 39, Plaquemines, LA
Built 1968 Load: 11.3 t
Ferre Canal Rd.
FairOver: Coulee
0.6 Mi. W. of La 91, Acadia, LA
Built 1967 Load: 11.3 t ADT: 48
Fuselier Rd
FairOver: De Marks Coulee
2.4 Mi. W. of La 740, St. Landry, LA
Built 1976 Load: 11.3 t ADT: 300
Cherry St
FairOver: Bayou Tesson
0.3 Mi. W. of La 182, St. Landry, LA
Built 1965 Load: 11.3 t ADT: 1,200
Camile Rd
FairOver: Grand Marais Bayou
1 Mi E. of Amerada Rd, Vermilion, LA
Built 1983 Load: 11.3 t ADT: 143
LA0146
FairOver: CASTOR CREEK
4.5 MI SOUTH OF LA 145, Jackson, LA
Built 1951 Load: 11.3 t ADT: 882
Big Creek Rd
FairOver: BIG CREEK
1.63 MI. NORTH OF LA 121, Rapides, LA
Built 1954 Load: 11.3 t ADT: 70
J. R. McLin Rd
FairOver: HORNSBY CREEK
.5 MI NE OF INTLA1024&449, Livingston, LA
Built 1999 Load: 11.3 t ADT: 10
KINGS Rd
FairOver: WRIGHTS Cr
1.0.MI. NORTH.OF.LA., St. Tammany, LA
Built 1960 Load: 11.3 t ADT: 122
LA0010
FairOver: HAMILTON CREEK
0.7 M E OF LA 1061, Tangipahoa, LA
Built 1957 Load: 11.3 t ADT: 1,333
Soloman Rd
FairOver: CREEK
2.6 MI SW OF JCT 51, Tangipahoa, LA
Built 1960 Load: 11.3 t ADT: 14
LOUISIANA AVENUE
FairOver: BAYOU ZOURIE BRANCH
VE 763 358, Vernon, LA
Built 1978 Load: 11.3 t ADT: 4,500
TOUSSANT FORET BR
FairOver: PETIT CAILLOU BAYOU
0002 LOG MI FROM IN, Terrebonne, LA
Built 1965 Load: 11.7 t ADT: 1,339
SHRIMPERS ROW
FairOver: PROVOST BAYOU
4.2 MI N OF FALGOUT CANAL, Terrebonne, LA
Built 1963 Load: 11.7 t ADT: 990
OLIVE ST
FairOver: W. PRONG YOUNGS BAYOU
OLIVE ST. - MONROE LA, Ouachita, LA
Built 1985 Load: 11.7 t ADT: 300
SARA ST
FairOver: CANAL
0.25M SOUTH OF PICARD RD, Calcasieu, LA
Built 1988 Load: 11.7 t ADT: 1,200
Clifton Crossing
FairOver: CYPRESS BAYOU
1.5 MI. SOUTH OF LA 28, Rapides, LA
Built 1969 Load: 11.7 t ADT: 55
Maple Street
FairOver: Betty Bayou
MAPLE STREET, Rapides, LA
Built 1970 Load: 11.7 t ADT: 75
Carrey St
FairOver: CREEK
0.4 MI.NE OF US LA.1, St. Tammany, LA
Built 1960 Load: 11.7 t
LOOKOUT ROAD
FairOver: BEAVER POND
VE861314, Vernon, LA
Built 1978 Load: 11.7 t ADT: 312
LOOKOUT ROAD
FairOver: DRAKES CREEK
VE 851 313, Vernon, LA
Built 1978 Load: 11.7 t ADT: 312
Perchville Rd.
FairOver: MALLET BAYOU
2.2 Mi W of La 367, Acadia, LA
Built 2001 Load: 11.8 t ADT: 240
LA1159
FairOver: BAYOU
0.4 MI East of LA 1158, Evangeline, LA
Built 1940 Load: 11.8 t ADT: 79
LA0086
FairOver: BAYOU TECHE DASPIT
0.24 MI WEST OF LA 347, Iberia, LA
Built 1965 Load: 11.8 t ADT: 3,834
RAOUL ROAD
FairOver: BAYOU
0.4 M W of LA 101, Jefferson Davis, LA
Built 1977 Load: 11.8 t ADT: 30
CLIFTON ROAD
FairOver: DRAIN
2.3 M W of LA 101, Jefferson Davis, LA
Built 1975 Load: 11.8 t ADT: 101
LA0506
FairOver: CREEK
2.8 MI EAST OF US 165, Caldwell, LA
Built 1960 Load: 11.8 t ADT: 411
Zeagler St
FairOver: CREEK
LA778 LOOP TO INT LA127, LaSalle, LA
Built 1975 Load: 11.8 t
LA0444
FairOver: PICOU BAYOU
2.0 M SW OF LA 63, Livingston, LA
Built 1955 Load: 11.8 t ADT: 3,782
LA1047
FairOver: W NATALBANY CREEK
1.5 M E OF LA 441, St. Helena, LA
Built 1957 Load: 11.8 t ADT: 287
LA1050
FairOver: DITCH
0.4 M SE OF LA 1049, Tangipahoa, LA
Built 1960 Load: 11.8 t ADT: 1,583
LA1055
FairOver: SILVER CREEK
LA1055, Washington, LA
Built 1957 Load: 11.8 t ADT: 94
GALLIANO BRIDGE RD
FairOver: LAFOURCHE BAYOU
0.01 MI W. OF LA 308, Lafourche, LA
Built 1956 Load: 12.0 t ADT: 1,338
Pointe Noir Rd
FairOver: PLAQUEMINE BRULE BAYOU
1.2 MI W of LA 35, Acadia, LA
Built 1986 Load: 12.0 t ADT: 240
Pelican Rd
FairOver: MAGEE CANAL
0.9 Mi S of La 330, Vermilion, LA
Built 1982 Load: 12.0 t ADT: 30
LAMKIN RD
FairOver: CYPRESS
0.2 MI E of US 167, Jackson, LA
Built 2006 Load: 12.0 t
REEDS BRIDGE RD
FairOver: CALCASIEU RIVER RELIEF
1.6 MI WEST OF US 165, Allen, LA
Built 1979 Load: 12.0 t ADT: 132
FDR 155
FairOver: CREEK
NO DATA ENTERED, Grant, LA
Built 1965 Load: 12.0 t ADT: 15
Carrol Ave
FairOver: BRIDGE OVER COLYELL CREE
.35 MI N JCT US 190 & 449, Livingston, LA
Built 2000 Load: 12.0 t ADT: 250
Royal 18th Dr
FairOver: CREEK
ROYAL 18 ESTATES SUB, St. Tammany, LA
Built 1990 Load: 12.0 t ADT: 200
Andover Rd.
FairOver: Indian Bayou Lateral
0.35 MI. N. LA 342, Lafayette, LA
Built 2001 Load: 12.3 t ADT: 26
S. Hospital Dr
FairOver: YOUNGS NORTH COULEE
0.16 Mi. S of LA 14, Vermilion, LA
Built 1965 Load: 12.3 t ADT: 870
Hosston Miller Blf
FairOver: TRIBUTARY TO STUMPY BAYO
3.5 MI E OF US 71, Caddo, LA
Built 1947 Load: 12.3 t ADT: 31
Showing 101-150 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.