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
LA0008
GoodOver: CANEY CREEK
10.09 MI WEST OF US 171, Vernon, LA
Built 2007 Load: 28.2 t ADT: 1,856
US0167
GoodOver: CEDAR CREEK
7.48 MI. NORTH OF LA 500, Winn, LA
Built 2009 Load: 28.2 t ADT: 5,107
US0167
GoodOver: BIG CREEK RELIEF
2.46 MI. NORTH OF LA 126, Winn, LA
Built 2010 Load: 28.2 t ADT: 5,367
Poole Road (South)
GoodOver: VIDALIA CANAL
1.8M SW of LA 15, Concordia, LA
Built 2003 Load: 28.2 t ADT: 150
Humphries Rd
GoodOver: WEST TURKEY CREEK
LOG MI 0.10 FR 237 TO 240, Franklin, LA
Built 2005 Load: 28.2 t ADT: 150
W Worthy Rd
GoodOver: BAYOU FRANCOIS TRIB.
1.5 MILES WEST OF LA 44, Ascension, LA
Built 2007 Load: 28.2 t ADT: 120
Laurel Ridge Rd
GoodOver: BABIN CANAL
1.8 MI NE LA22-LA429 JCT, Ascension, LA
Built 1988 Load: 28.2 t ADT: 150
US0061
GoodOver: GRANT BAYOU
1.3 M W of LA 10, West Feliciana, LA
Built 2011 Load: 28.2 t ADT: 16,169
US0061
GoodOver: GRANT BAYOU
1.3 M W OF LA 10, West Feliciana, LA
Built 2011 Load: 28.2 t ADT: 10,202
US0061
GoodOver: BAYOU
3.61 MILES NORTH OF THOMP, West Feliciana, LA
Built 2011 Load: 28.2 t ADT: 16,169
US0061
GoodOver: BAYOU
3.61 MILES NORTH OF THOMP, West Feliciana, LA
Built 2011 Load: 28.2 t ADT: 10,202
US0061
GoodOver: BAYOU
0.2 M W OF LA 10, West Feliciana, LA
Built 2011 Load: 28.2 t ADT: 16,169
US0061
GoodOver: E FORK GRANTS BAYOU
0.2 M E OF LA 10, West Feliciana, LA
Built 2011 Load: 28.2 t ADT: 10,202
Stone Rd
GoodOver: HOFFMAN CREEK
0.5 MILES SOUTH OF LA 104, St. Helena, LA
Built 2011 Load: 28.2 t ADT: 250
TRAM ROAD
GoodOver: ODOM CREEK
VE 814 715, Vernon, LA
Built 2005 Load: 28.2 t ADT: 40
Cossinade Rd
GoodOver: Coulee Des Iles
0.6 Mi N. of La 13, Vermilion, LA
Built 2000 Load: 28.4 t ADT: 240
PATRIOT ST
GoodOver: SWIFT CANAL
1 MI E. OF BARATARIA BLVD, Jefferson, LA
Built 1984 Load: 28.5 t ADT: 450
Copper Meadow Blvd
GoodOver: Parc Perdu Bayou
0.40 Mi W of Lafayette St, Lafayette, LA
Built 2008 Load: 28.5 t ADT: 158
SOUTH LAKESHORE DR
GoodOver: CROSS BAYOU
2.6 MI E OF LA 169, Caddo, LA
Built 1984 Load: 28.5 t ADT: 475
North Lakeshore Dr
GoodOver: JOHNSONS ARM
2.2 MI SW OF LA 173, Caddo, LA
Built 1992 Load: 28.5 t ADT: 152
CENTERPOINT RD
GoodOver: WEST BRANCH DUGEDEMONLA
2.1 MI E of LA 507, Lincoln, LA
Built 1999 Load: 28.5 t ADT: 35
NORRIS RD
GoodOver: CHOUDRANT CREEK
0.1 MI N of US 80, Lincoln, LA
Built 1999 Load: 28.5 t ADT: 73
LA0830-3
GoodOver: HORSE BAYOU
1.1 MI N of US 165, Morehouse, LA
Built 2010 Load: 28.5 t ADT: 2,866
SPYKER RD
GoodOver: STAULKING HEAD CREEK
.6 MI SE INT. 017, Morehouse, LA
Built 1998 Load: 28.5 t ADT: 100
COOPER LAKE RD
GoodOver: CYPRESS BAYOU
0.3 MI NW of LA 830-3, Morehouse, LA
Built 1998 Load: 28.5 t ADT: 1,350
GUYTON SWAMP RD
GoodOver: MILL CREEK
1.55 MI NW of LA 34, Ouachita, LA
Built 1992 Load: 28.5 t ADT: 74
ACEL ST
GoodOver: LITTLE CREEK
LOGMI 0.22 FR 1 TO 2, Richland, LA
Built 1982 Load: 28.5 t ADT: 250
Edwards Rd.
GoodOver: INDIAN CREEK
0.51 M S OF LINCEEUM VILL, Grant, LA
Built 2011 Load: 28.5 t ADT: 25
LA0126
GoodOver: SALINE BAYOU
3.61 MILES EAST OF LA 9, Winn, LA
Built 1994 Load: 28.5 t ADT: 310
PICARDY
GoodOver: I-10
0.6 MI. E OF JCT LA 1248, East Baton Rouge, LA
Built 2006 Load: 28.5 t ADT: 83,400
LA0440
GoodOver: TANGIPAHOA RIVER
0.90 MILES EAST OF US 51, Tangipahoa, LA
Built 2006 Load: 28.5 t ADT: 2,470
Adams Rd
GoodOver: YELLOW WATER RIVER BR.
3MI SW/LA 51EXIT ADAMS RD, Tangipahoa, LA
Built 1996 Load: 28.5 t ADT: 3,500
I0010
GoodOver: LA 49
3.7 MI WEST OF LA 3152, Jefferson, LA
Built 2001 Load: 28.8 t ADT: 15,955
PROVIDENCE PL
GoodOver: PRESS DR
0.1 MILE SOUTH OF LEON C, Orleans, LA
Built 1974 Load: 28.8 t
LA0370
GoodOver: CREEK
0.65 MI EAST OF LA 91, Acadia, LA
Built 1971 Load: 28.8 t ADT: 568
LAJAUNIE RD
GoodOver: VERMILLION RIVER
1.10 M S of I-10, Lafayette, LA
Built 2017 Load: 28.8 t ADT: 680
LA3267
GoodOver: YOUNGS NORTH COULEE
0.62 MI S of LA 14, Vermilion, LA
Built 2009 Load: 28.8 t ADT: 3,084
Butler Hill Rd
GoodOver: Caney Creek
3.9 MI NORTH OF LA 162, Bossier, LA
Built 1994 Load: 28.8 t ADT: 250
LITTLE DEE RD
GoodOver: LITTLE BAYOU GALION
1.0 MI N of LA 2, Morehouse, LA
Built 1995 Load: 28.8 t ADT: 420
TROUSDALE ROAD
GoodOver: CONOCO PHILLIPS PIPELINE
0.70 MI N OF US 90, Calcasieu, LA
Built 1995 Load: 28.8 t ADT: 2,938
US0071
GoodOver: RED RIVER FORT BUHLOW
1.0 MILE NORTH OF I-49, Rapides, LA
Built 2015 Load: 28.8 t ADT: 10,090
COOPER CHURCH RD
GoodOver: PARISH RD #4 ZOURIE BAYO
COOPER ROAD, Vernon, LA
Built 1983 Load: 28.8 t ADT: 510
Carson Rd
GoodOver: TURKEY CREEK
LOGMI 4.35 FR 655 TO ODE, Franklin, LA
Built 1996 Load: 28.8 t ADT: 100
US0165
GoodOver: CREEK
0.91 MILES NORTH OF THE L, LaSalle, LA
Built 2009 Load: 28.8 t ADT: 4,538
US0090
GoodOver: ONGOING RAMP B.E.
6 Mi E of LA 182/90, Assumption, LA
Built 1999 Load: 28.8 t ADT: 12,192
I0110
GoodOver: RAMP H OVER US 61
US 61 S TO I-110 S, East Baton Rouge, LA
Built 1983 Load: 28.8 t ADT: 32,092
Breckenridge Ave
GoodOver: MONTE SANO BAYOU
0.9 M OF W OF LA 67, East Baton Rouge, LA
Built 1985 Load: 28.8 t ADT: 150
I0012
GoodOver: I-12 OVER LA 21
2.2 M E OF LA 1077, St. Tammany, LA
Built 1975 Load: 28.8 t ADT: 29,236
I0012
GoodOver: CANAL & BIKE TR
0.1 M W OF LA 59, St. Tammany, LA
Built 1976 Load: 28.8 t ADT: 33,650
I0012
GoodOver: LA 59
2.7 M E OF US 190, St. Tammany, LA
Built 1976 Load: 28.8 t ADT: 80,162
Showing 7,151-7,200 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.