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
L08
FairOver: WEST FORK MASTERS CREEK
NO DATA ENTERED, Rapides, LA
Built 2003 ADT: 50
422 FDR
FairOver: BUNDICK CREEK
3.5 M. ESE. OF PICKE, Vernon, LA
Built 1975 ADT: 250
422 FDR
FairOver: BUNDICK CREEK
3.5 MI.E.S.E.OF PICKERING, Vernon, LA
Built 1983 ADT: 250
SPEARS VILLAGE RD
FairOver: DRAINAGE STAGESTAND CR
PEASON RIDGE TRAIN AREA, Natchitoches, LA
Built 2005 ADT: 40
Jefferson Paige Rd
FairOver: TRIB. TO PAGE BAYOU
4.9 MI WEST OF U.S., Caddo, LA
Built 1976 Load: 0.0 t ADT: 39
Daugereaux Rd.
FairOver: GRAND LOUIS BAYOU
1.85 Mi N of La 104, Evangeline, LA
Built 2001 Load: 0.3 t ADT: 30
Linda Rd
FairOver: GRAND LOUIS BAYOU
0.28 Mi S of La 1160, Evangeline, LA
Built 2001 Load: 1.9 t ADT: 20
OLD HWY 80
FairOver: JUDD BAYOU
JUDD BAYOU #1 (EAST), Madison, LA
Built 1908 Load: 3.6 t
Piney Woods Rd
FairOver: EDWARDS MILL CREEK
0.78M SW OF LA 9, Bienville, LA
Built 1993 Load: 3.6 t ADT: 50
Cypress Point Rd
FairOver: COULEE
4.2 Mi E of LA 14, Vermilion, LA
Built 1970 Load: 4.2 t ADT: 288
72ND AVE
FairOver: I-110;MONTE SANO BAYOU
0.4 M N of I-110&US 61, East Baton Rouge, LA
Built 1976 Load: 4.2 t ADT: 30,750
SMITHRIDGE BRIDGE
FairOver: PETIT CAILLOU BAYOU
0001 LOG MI FROM IN, Terrebonne, LA
Built 1968 Load: 4.5 t ADT: 438
LA0404
FairOver: BAYOU DANIEL
4.1 Mi. E of LA 75, Iberville, LA
Built 1955 Load: 4.5 t ADT: 551
Blackmore Rd
FairOver: GRANTS BAYOU WEST FORK
0.2 M N of LA 965, West Feliciana, LA
Built 1999 Load: 4.5 t ADT: 78
LA1027
FairOver: WEST COLYELL CR
0.2 M E OF LA 1026, Livingston, LA
Built 1952 Load: 4.5 t ADT: 6,554
St. Charles Bypass
FairOver: GRAND COTEAU BAYOU
0148 LOG MI FROM INT, Lafourche, LA
Built 1970 Load: 5.2 t ADT: 1,193
Will Landry Rd
FairOver: WAUKSHA BAYOU
0.12 MILES N OF LA 103, St. Landry, LA
Built 2012 Load: 5.5 t ADT: 10
N. Hollingsworth
FairOver: VALCOURT COULEE
0.06 MI W. Of La 82, Vermilion, LA
Built 1960 Load: 5.5 t ADT: 500
Cypress Point Rd
FairOver: COULEE
2 Mi E of La 14, Vermilion, LA
Built 1960 Load: 6.2 t ADT: 288
Tucker Rd
FairOver: CREEK
0.04M SOUTH OF LA 777, LaSalle, LA
Built 1989 Load: 6.2 t ADT: 50
LA0016
FairOver: AMITE RIVER-FRENCH SMEN
1.6 M S OF LA 444, Livingston, LA
Built 1960 Load: 6.4 t ADT: 4,313
LA0434
FairOver: BAYOU LACOMBE
2.5 Miles South of LA 36, St. Tammany, LA
Built 1953 Load: 6.4 t ADT: 3,690
LA1062
FairOver: DRAIN
3.5 M SE OF LA 445, Tangipahoa, LA
Built 1954 Load: 6.4 t ADT: 3,571
N C FRANCIS PKWY
FairOver: I-10/RR/CITY STS.
1.5 MI S OF TULANE AVENUE, Orleans, LA
Built 1951 Load: 6.5 t ADT: 67,742
Amerada Rd
FairOver: COULEE
2.41 Mi S of LA 92, Vermilion, LA
Built 1968 Load: 6.5 t ADT: 160
LA1061
FairOver: HORSE BRANCH
2.2 M NE OF LA 1054, Tangipahoa, LA
Built 1958 Load: 6.8 t ADT: 279
Delhomme Ave.
FairOver: COULEE
0.3 MI W of LA 3168, Lafayette, LA
Built 2005 Load: 7.1 t ADT: 132
Spencer Rd
FairOver: FLORENCE CANAL
0.01 Mi. W of LA 91, Vermilion, LA
Built 1960 Load: 7.1 t ADT: 75
Arnold Rd
FairOver: COULEE
0.5 Mi NW of Brice Ln, Vermilion, LA
Built 1974 Load: 7.1 t ADT: 50
Agate Rd.
FairOver: BRUSHY BAYOU
2.28 Mi E of US 165, Evangeline, LA
Built 2003 Load: 7.3 t ADT: 17
Cheneau Rd
FairOver: DE JOHN BRANCH COULEE
1.2 Mi E of La 35, Vermilion, LA
Built 1990 Load: 7.3 t ADT: 500
LA0147
FairOver: BIG CREEK
3.72 MI EAST OF US 167, Jackson, LA
Built 1970 Load: 7.3 t ADT: 5,394
LA0563
FairOver: BIG CREEK
1.65 MI NORTH OF LA 544, Lincoln, LA
Built 1973 Load: 7.3 t ADT: 1,064
Traino Rd
FairOver: CANAL
3 MI S. OF LA 22 TRAIN RD, Tangipahoa, LA
Built 1995 Load: 7.3 t ADT: 391
Casanova Rd
FairOver: COULEE
1 Mi. E. Of La 1109, Acadia, LA
Built 1999 Load: 7.5 t ADT: 48
Prairie Rd
FairOver: Bayou Little
0.6 Mi S of Community Rd, Vermilion, LA
Built 1975 Load: 7.5 t ADT: 18
LA0132
FairOver: MUDDY BAYOU
.3 MI EAST OF LA 135, Richland, LA
Built 1972 Load: 7.5 t ADT: 1,913
Owen Miller Rd
FairOver: SPRING CREEK
0.74 MI. EAST OF LA 121, Rapides, LA
Built 1996 Load: 7.5 t ADT: 80
Smith Rd
FairOver: LITTLE BOGUE FALAYA RIVE
1.2 MI N/W JCT LA1082 &21, St. Tammany, LA
Built 2001 Load: 7.5 t ADT: 2,253
E Loyoal Dr
FairOver: CANAL NO. 7
1.2 MI. N. OF 35 TH., Jefferson, LA
Built 1970 Load: 7.8 t
FRANKLIN AVE
FairOver: FLORIDA CANAL / RR
0.5MI.S.OF I.10, Orleans, LA
Built 1950 Load: 7.8 t
FRANKLIN AVE
FairOver: FLORIDA CANAL / RR
.5MIS.OF I.10, Orleans, LA
Built 1950 Load: 7.8 t
Wright Rd
FairOver: COULEE
1.7 Mi S of La 14, Vermilion, LA
Built 1965 Load: 7.8 t ADT: 150
LA0399
FairOver: FLAT BRANCH
1.99 MI NORTH OF LA 10, Vernon, LA
Built 1964 Load: 7.9 t ADT: 396
LA0838
FairOver: CHENIERE CREEK
4.1 MI EAST OF LA 546, Ouachita, LA
Built 1955 Load: 8.0 t ADT: 8,105
LA0631
FairOver: BAYOU DESALLEMAND
.4 MI WEST OF LA 632, St. Charles, LA
Built 1935 Load: 8.1 t ADT: 1,834
Maxwell Xing Rd
FairOver: CREEK
1.73 M. S. OF LA 3098, Grant, LA
Built 1930 Load: 8.1 t ADT: 125
LA0330
FairOver: BAYOU TIGRE
4.25 MI N. OF LA 685, Vermilion, LA
Built 1960 Load: 8.4 t ADT: 1,523
LA0134
FairOver: CREEK
3.82 MI WEST OF US 425, Morehouse, LA
Built 1972 Load: 8.4 t ADT: 540
Burnell Rd
FairOver: CANAL
1.3 Mi. E of LA 91, Vermilion, LA
Built 1965 Load: 8.7 t ADT: 150
Showing 1-50 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.