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
US0071
GoodOver: HORSE SHOE BAYOU
3.0 MI NORTH OF LA 169, Caddo, LA
Built 1955 Load: 32.4 t ADT: 472
US0071
GoodOver: DRAIN
7.8 MI NORTH OF LA 2, Caddo, LA
Built 1935 Load: 32.4 t ADT: 349
LA0001
GoodOver: LA 1 CREEK
5.0 MI NORTH OF LA 170, Caddo, LA
Built 1986 Load: 32.4 t ADT: 2,032
LA0001
GoodOver: TYSON BRANCH
0.3 MI NORTH OF LA 168, Caddo, LA
Built 1986 Load: 32.4 t ADT: 650
LA0530
GoodOver: DOOLEY BAYOU
7.41 MI WEST OF LA 1, Caddo, LA
Built 1980 Load: 32.4 t ADT: 177
LA0530
GoodOver: HORSESHOE BAYOU
0.45 MI EAST OF US 71, Caddo, LA
Built 2002 Load: 32.4 t ADT: 177
LA0511
GoodOver: CREEK
0.3 MI EAST LA 3132, Caddo, LA
Built 1984 Load: 32.4 t ADT: 21,080
LA0511
GoodOver: CREEK
3.0 MI EAST OF LA 3132, Caddo, LA
Built 1963 Load: 32.4 t ADT: 21,080
LA0511
GoodOver: BRUSH BAYOU
4.0 MI EAST OF LA 3132, Caddo, LA
Built 1963 Load: 32.4 t ADT: 21,080
LA3132
GoodOver: DRAIN
1.2 MI. E. OF I-20, Caddo, LA
Built 1984 Load: 32.4 t ADT: 12,192
I0020
GoodOver: DRAIN
1.5 MI EAST OF I-220, Caddo, LA
Built 1965 Load: 32.4 t ADT: 98,318
Adams Rd
GoodOver: JOHNSON BRANCH
0.2 MI N. OF CADDO RD 13, Caddo, LA
Built 2006 Load: 32.4 t ADT: 42
BUNCOMBE RD
GoodOver: TRIB. TO GILMER BAYOU
1.4 MI NE CADDO RD NO 7, Caddo, LA
Built 1999 Load: 32.4 t ADT: 6,138
Moore Rd
GoodOver: TRIB BRUSH BAYOU
0.003 MI S OF IDEMA ST, Caddo, LA
Built 1988 Load: 32.4 t ADT: 22
LINWOOD AVE
GoodOver: LINWOOD AVE TRBY TO BRUS
0.2 MI. N. OF LA 3132, Caddo, LA
Built 1983 Load: 32.4 t ADT: 14,042
Kimberly Rd
GoodOver: TRIB. TO BOGGY BAYOU
0.7 MI. SO. OF LA 511, Caddo, LA
Built 2005 Load: 32.4 t ADT: 2,400
BUNCOMBE RD
GoodOver: GILMER BAYOU
1.0 MI SW OF LA 511, Caddo, LA
Built 1991 Load: 32.4 t ADT: 2,656
PINES RD
GoodOver: BICKHAM BAYOU
0.7 MI N OF US 80, Caddo, LA
Built 1987 Load: 32.4 t ADT: 4,200
FERN BAYOU
GoodOver: BAYOU PIERRE
0.9 MI N OF PIERREMONT AV, Caddo, LA
Built 1988 Load: 32.4 t ADT: 5,938
Jefferson Paige Rd
GoodOver: TRIBUTARY TO CROSS LAKE
0.9 MI. WEST OF US 80, Caddo, LA
Built 2002 Load: 32.4 t ADT: 21
E. ELMWOOD RD
GoodOver: BAYOU PIERRE TRIB
0.1 MI W OF ALEXANDER AVE, Caddo, LA
Built 1988 Load: 32.4 t ADT: 1,381
RUTHERFORD STREET
GoodOver: GILBERT DITCH
2.5 MI W OF HWY 1, Caddo, LA
Built 1998 Load: 32.4 t
LAKESHORE DR
GoodOver: TRIBUTARY TO CROSS LAKE
2.9 MI W OF US 80, Caddo, LA
Built 2004 Load: 32.4 t ADT: 1,100
LAKESHORE DR
GoodOver: TRIBUTARY TO CROSS LAKE
2.6 MI W OF US 80, Caddo, LA
Built 2004 Load: 32.4 t ADT: 1,100
MILTON ST
GoodOver: TRIBUTARY TO CROSS LAKE
0.8 MI W OF LA171, Caddo, LA
Built 1951 Load: 32.4 t ADT: 150
WILLIE MAYS STREET
GoodOver: MARTIN L KING DRIVE DITC
0.43 MI WEST OF LEGARDY S, Caddo, LA
Built 1996 Load: 32.4 t ADT: 852
Gamm Rd Ext
GoodOver: MYRICKS BAYOU
0.75 MI N. OF LA 169, Caddo, LA
Built 1997 Load: 32.4 t ADT: 36
Self Rd
GoodOver: SWIFT BAYOU
3.11 MI WEST OF US 71, Caddo, LA
Built 1997 Load: 32.4 t ADT: 36
Self Rd
GoodOver: HORSESHOE BAYOU
0.75 MI W. OF US 71, Caddo, LA
Built 1998 Load: 32.4 t ADT: 33
US0079
GoodOver: US 79 BYPASS OVER CREEK
1.1 MILES SOUTH OF LA 2, Claiborne, LA
Built 2010 Load: 32.4 t ADT: 4,559
St. John Rd
GoodOver: ISAAC CREEK
1.01 MI SOUTH OF JCT LA 1, Claiborne, LA
Built 2012 Load: 32.4 t ADT: 300
Richardson Loop
GoodOver: TRIB TO BAYOU DARBONNE
1.37 MI WEST OF JCT LA 9, Claiborne, LA
Built 2012 Load: 32.4 t ADT: 150
Cypress Bottom Rd
GoodOver: LITTLE CORNEY BAYOU
3.1 MILES NORTH OF LA 2, Claiborne, LA
Built 2009 Load: 32.4 t ADT: 90
Fellowship Rd
GoodOver: GREER CREEK
1.25 MI EAST OF JCT LA 9, Claiborne, LA
Built 2012 Load: 32.4 t ADT: 200
LA0002
GoodOver: BEAR CREEK
6.09 MI EAST OF US 79, Claiborne, LA
Built 1968 Load: 32.4 t ADT: 1,687
LA0002-A
GoodOver: ALFORD CREEK
7.1 MI EAST OF LA 520, Claiborne, LA
Built 1976 Load: 32.4 t ADT: 389
COOK RD
GoodOver: FRAZIER CREEK
2.0 M NORTH OF LA 9, Claiborne, LA
Built 1990 Load: 32.4 t ADT: 120
Harris Rd
GoodOver: CLEAR CREEK
3.0 MI S. OF US 79, Claiborne, LA
Built 2000 Load: 32.4 t ADT: 325
Oil Center Rd
GoodOver: INDIAN CREEK
3.0 MI. W. OF US 79, Claiborne, LA
Built 2000 Load: 32.4 t ADT: 100
Holly Ridge Rd
GoodOver: DOE BRANCH
2.26 MI. N. OF LA 2, Claiborne, LA
Built 2000 Load: 32.4 t ADT: 150
John Kelly Rd
GoodOver: JOHN KELLY RD BEA. CREE
0.09 MI SO OF LA HWY 9, Claiborne, LA
Built 1990 Load: 32.4 t ADT: 100
US0171
GoodOver: TRENTON RD. RR
6.1 MI. N.OF LA 512, De Soto, LA
Built 2009 Load: 32.4 t ADT: 5,659
LA3248
GoodOver: CREEK
1.72 MILES SOUTH OF WEST, De Soto, LA
Built 2012 Load: 32.4 t ADT: 42
LA0346
GoodOver: LA 346 OVER TEN MI. BAYO
2.2 I. E. OF LA 346 AND L, De Soto, LA
Built 2013 Load: 32.4 t ADT: 718
MOUNCE ROAD
GoodOver: TRIB TO GRAND CANE BAYOU
3 MI SW OF US 171, De Soto, LA
Built 2020 Load: 32.4 t ADT: 225
Hunter Rd
GoodOver: TRIB. TO CLEMENT CREEK
1.5 MILES SOUTH OF US 84, De Soto, LA
Built 2011 Load: 32.4 t ADT: 25
George Hunt Rd
GoodOver: TRIB TO B NA BONCHASE
1.05 MI SOUTH OF LA 3015, De Soto, LA
Built 2011 Load: 32.4 t ADT: 130
LA0175
GoodOver: BAYOU NA BONCHASSE RELIE
4.59 MI N. OF US 84, De Soto, LA
Built 2000 Load: 32.4 t ADT: 4,494
I0049
GoodOver: I-49 OVER CREEK
0.59 MI N OF LA 509 INTR, De Soto, LA
Built 1985 Load: 32.4 t ADT: 29,022
I0049
GoodOver: I-49 OVER CREEK
0.59 MI N OF LA 509 INTR, De Soto, LA
Built 1985 Load: 32.4 t ADT: 28,142
Showing 7,801-7,850 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.