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
Destrehan Ave
GoodOver: CANAL
1.0 MI E OF LA 3134, Jefferson, LA
Built 2005 Load: 26.9 t
US0090
GoodOver: B CROCODILE
1.0 MI EAST OF LA 306, St. Charles, LA
Built 1965 Load: 26.9 t ADT: 20,956
Springridge-Texas
GoodOver: Mill Creek
1.3 MI.EAST OF TEXAS, Caddo, LA
Built 1976 Load: 26.9 t ADT: 5,102
BAIRD ROAD
GoodOver: SUMMER GROVE DITCH
0.9 MI. EAST OF US 171, Caddo, LA
Built 2003 Load: 26.9 t ADT: 4,720
WALDEN FERRY RD
GoodOver: CROSS BAYOU
.86 MI. WEST OF US 80, Caddo, LA
Built 1997 Load: 26.9 t ADT: 57
Clyde Fant Parkway
GoodOver: Clyde Fant Pkwy Ramps
0.4 Mi. S of Jack Wells B, Caddo, LA
Built 1998 Load: 26.9 t ADT: 11,190
United Gas Rd
GoodOver: TRIBUTARY TO BLACK BAYOU
0.8 MI SOUTH OF LA 168, Caddo, LA
Built 1995 Load: 26.9 t ADT: 38
US0171
GoodOver: ELAM BRANCH
1.9 MI. N. OF US 84, De Soto, LA
Built 2009 Load: 26.9 t ADT: 6,525
US0079
GoodOver: DRAIN
1.93M EAST OF LA 159, Webster, LA
Built 1932 Load: 26.9 t ADT: 9,942
BRIMBERRY RD
GoodOver: CREEK
1.5 MI W OF LA 133, Richland, LA
Built 2016 Load: 26.9 t ADT: 60
Youngs Crossing
GoodOver: BAYOU BOEUF
0.01 MI. EAST OF LA 1176, Avoyelles, LA
Built 1992 Load: 26.9 t ADT: 100
Thing Dufour Rd
GoodOver: BAYOU DES GLAISES
0.15 MI. EAST OF LA 451, Avoyelles, LA
Built 1998 Load: 26.9 t ADT: 220
Allen Marthaville
GoodOver: WATSON BAYOU
1 M. NE OF LA 120, Natchitoches, LA
Built 1999 Load: 26.9 t ADT: 82
Mammy Trail Rd
GoodOver: CHEE-CHEE CREEK
2.31 MI. NORTH OF LA 1226, Natchitoches, LA
Built 2000 Load: 26.9 t ADT: 255
US0165
GoodOver: SPRING CREEK
2.15 MI. NORTH OF LA 113, Rapides, LA
Built 2009 Load: 26.9 t ADT: 8,811
US0165
GoodOver: BARBER CREEK
2.64 M S OF S JCT LA 112, Rapides, LA
Built 2009 Load: 26.9 t ADT: 8,811
US0165
GoodOver: BARBER CREEK RELIEF
2.78 M S OF S JCT. LA 112, Rapides, LA
Built 2009 Load: 26.9 t ADT: 8,811
US0165
GoodOver: BARBER CREEK RELIEF
2.78 M S OF S JCT. LA 112, Rapides, LA
Built 2009 Load: 26.9 t ADT: 11,113
US0165
GoodOver: BARBER CREEK
2.64 M S OF S JCT. LA 112, Rapides, LA
Built 2009 Load: 26.9 t ADT: 11,113
LA0488
GoodOver: TURKEY BAYOU
3.32 M WEST OF LA 1208-3, Rapides, LA
Built 2006 Load: 26.9 t ADT: 2,343
LA0488
GoodOver: DIVERSION CANAL
2.12 M WEST OF LA 1208-3, Rapides, LA
Built 2006 Load: 26.9 t ADT: 2,343
Hooterville Rd
GoodOver: BANISTER CREEK
0.1 M W of LA 506, Caldwell, LA
Built 1998 Load: 26.9 t ADT: 70
Sweetwater Road
GoodOver: SWEETWATER CREEK
0.4M NE of LA557, Caldwell, LA
Built 1996 Load: 26.9 t ADT: 90
Indian Bluff Rd
GoodOver: CREEK
LOG MI. 1.15 FR 70 TO ODE, LaSalle, LA
Built 1998 Load: 26.9 t ADT: 70
Knotch Rd
GoodOver: BLUFF CREEK
2.7 M NW of LA 63&LA 37, East Feliciana, LA
Built 1984 Load: 26.9 t ADT: 12
Wales Rd
GoodOver: SANDY RUN BRIDGE
0.45 M N OF LA 10, St. Helena, LA
Built 1989 Load: 26.9 t ADT: 60
Bayou Pacquet
GoodOver: BAYOU PAQUET
1.15M WEST OF LA 433, St. Tammany, LA
Built 1992 Load: 26.9 t ADT: 595
W. Murray Rd
GoodOver: ANDERSON CANAL
1.6M SW OF LA 22 EXIT, Tangipahoa, LA
Built 1992 Load: 26.9 t ADT: 577
General Ott Rd
GoodOver: YELLOW WATER RIVER
2.0M NW OF LA 51 EXIT, Tangipahoa, LA
Built 1993 Load: 26.9 t ADT: 1,491
B. Brown Rd
GoodOver: BIG CREEK BRIDGE
0.8E/1054&1058 BOB BROWN, Tangipahoa, LA
Built 1996 Load: 26.9 t ADT: 56
Lees Cr. Church Rd
GoodOver: LEES CREEK
0.4 M EAST OF LA 1075, Washington, LA
Built 1990 Load: 26.9 t ADT: 520
Mt. Pisgah Rd
GoodOver: SILVER CREEK
1.7 M SOUTH OF HWY 38, Washington, LA
Built 1990 Load: 26.9 t ADT: 675
Old Lake Rd
GoodOver: DEER LICK CREEK
.1 NORTH OF HWY 1055, Washington, LA
Built 1999 Load: 26.9 t ADT: 129
Cumnock Rd
GoodOver: HAYS CREEK
1.4 MILES NORTH OF HWY 38, Washington, LA
Built 2000 Load: 26.9 t ADT: 334
Crains Cr. Rd
GoodOver: CRAINS CREEK
0.4 MI NORTH OF HWY 438, Washington, LA
Built 2000 Load: 26.9 t ADT: 480
I0010
GoodOver: GROUND
0.5 MILES NORTH OF I-10, Jefferson, LA
Built 2012 Load: 27.2 t ADT: 15,955
LA3139
GoodOver: RAMP "C"
.85 MI EAST OF LA 3154, Jefferson, LA
Built 1986 Load: 27.2 t ADT: 12,192
Cleary Ave
GoodOver: CANAL #4
1.5 MILES SOUTH OF I-10, Jefferson, LA
Built 2004 Load: 27.2 t
BAINBRIDGE AVE
GoodOver: CANAL NUMBER 14
0.5M SOUTH OF VETERAN, Jefferson, LA
Built 1970 Load: 27.2 t
LA0024
GoodOver: INTRACOASTAL WATERWAY
.03 MI. FROM US 90, Terrebonne, LA
Built 1996 Load: 27.2 t ADT: 29,371
LA0024
GoodOver: INTERCOASTAL WATERWAY
.03 MI EAST OF US 90, Terrebonne, LA
Built 1996 Load: 27.2 t ADT: 20,358
LA3039
GoodOver: CANAL
3.0 MI NORTH OF LA 347, St. Martin, LA
Built 1965 Load: 27.2 t ADT: 1,807
LA0092
GoodOver: COULEE GRANGES
2.43 MI E. OF LA 343, Vermilion, LA
Built 1961 Load: 27.2 t ADT: 5,170
Pleasant Hill Ceme
GoodOver: Cypress Bayou Trib
3.3 MILES EAST OF HWY 157, Bossier, LA
Built 2014 Load: 27.2 t ADT: 100
MUNNERLYN CHAPEL
GoodOver: I0049
1.3 MILES WEST OF JCT OF, Caddo, LA
Built 2011 Load: 27.2 t ADT: 10,262
I0049
GoodOver: TRINITY BAYOU
0.2 M. N. OF LA 169, Caddo, LA
Built 2013 Load: 27.2 t ADT: 8,115
LINWOOD AVE
GoodOver: TRBY TO BRUSH BAYOU
0.2 MI. SO. OF LA 511, Caddo, LA
Built 1983 Load: 27.2 t ADT: 14,042
US0171
GoodOver: ELAM BRANCH
5.0 MI. S. OF LA 3015, De Soto, LA
Built 2009 Load: 27.2 t ADT: 6,604
LA0029
GoodOver: BAYOU BOEUF
0.01 MI. NORTH OF LA 1175, Avoyelles, LA
Built 1962 Load: 27.2 t ADT: 2,144
Hudson Blvd
GoodOver: Hynson Bayou
1.05 MI. NORTHEAST OF LA, Rapides, LA
Built 2015 Load: 27.2 t ADT: 900
Showing 7,001-7,050 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.