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
Industrial Pkwy
GoodOver: DES POCHES COULEE
0.38 Mi NE of LA 182, Lafayette, LA
Built 2012 Load: 25.9 t ADT: 2,700
Amhurst Rd.
GoodOver: ILE DES CANNES COULEE
0.2 MI S. of Allister Rd, Lafayette, LA
Built 2002 Load: 25.9 t ADT: 450
Vatican Rd.
GoodOver: CREEK
0.5 MI W of LA 93, Lafayette, LA
Built 2002 Load: 25.9 t ADT: 800
Romeal Rd
GoodOver: ROBINS CANAL
3.1 Mi W of Joe Rd, Vermilion, LA
Built 2010 Load: 25.9 t ADT: 150
Alderson Rd
GoodOver: TRIB. TO GREER CREEK
2.5 MI. E OF HWY 9, Claiborne, LA
Built 1997 Load: 25.9 t ADT: 25
Wall Williams Rd
GoodOver: Darbonne Bayou
0.8 Mi West of LA 143, Ouachita, LA
Built 2023 Load: 25.9 t ADT: 350
AVANT RD
GoodOver: STEEP BAYOU
0.5 MI N of US 80 E, Ouachita, LA
Built 1996 Load: 25.9 t ADT: 125
HILL RD
GoodOver: DRY FORK
0.4 MI W of US 425, Richland, LA
Built 2011 Load: 25.9 t ADT: 200
THOMAS RD
GoodOver: EAST FORK CREEK
0.1 MI E of LA 183, Richland, LA
Built 2011 Load: 25.9 t ADT: 75
HECKER RD
GoodOver: BAYOU SERPENT RELIEF
3.7 MI WEST OF LA 383, Calcasieu, LA
Built 2001 Load: 25.9 t ADT: 574
Grays Creek Rd
GoodOver: GRAYS CREEK
5.67 M. N. OF JCT US 167, Grant, LA
Built 2003 Load: 25.9 t ADT: 250
Grays Creek Rd
GoodOver: GRAYS CREEK
5.52 M. N. OF JCT. US 167, Grant, LA
Built 2003 Load: 25.9 t ADT: 250
Harmony Rd
GoodOver: MCKIMS CREEK
1.0 MILE NORTH OF LA 478, Natchitoches, LA
Built 1999 Load: 25.9 t ADT: 54
Harmony Rd
GoodOver: MCKIMS CREEK
1.2 MILES NORTH OF LA 478, Natchitoches, LA
Built 1999 Load: 25.9 t ADT: 54
Cemetery Road
GoodOver: CYPRESS BAYOU
0.03 M W LITTLE RIVER RD., Natchitoches, LA
Built 2003 Load: 25.9 t ADT: 27
Harmony Rd
GoodOver: PROVENCAL CREEK
0.8 MILES EAST OF LA 117, Natchitoches, LA
Built 1999 Load: 25.9 t ADT: 54
Old River Rd
GoodOver: OLD RIVER
0.02 M W OF OLD RIVER ROA, Natchitoches, LA
Built 2000 Load: 25.9 t ADT: 102
Goldonna Rd
GoodOver: BIG FORDOCHE CREEK
3.50 M. S. OF LA 156, Natchitoches, LA
Built 1984 Load: 25.9 t ADT: 173
Ten Mile Rd
GoodOver: TEN MILE CREEK
0.25 MILE WEST OF LA 462, Rapides, LA
Built 2001 Load: 25.9 t ADT: 300
TORO RD
GoodOver: HORSEPEN CREEK
APP. 3.25 M. N. OF LA 392, Sabine, LA
Built 1996 Load: 25.9 t ADT: 300
LAURENCE RD
GoodOver: HAMBY CREEK
0.1 MI. SOUTH OF LA 473, Sabine, LA
Built 1992 Load: 25.9 t ADT: 120
OLD HWY 476 RD
GoodOver: CANEY CREEK
.9 MI WEST OF LA 191, Sabine, LA
Built 2004 Load: 25.9 t ADT: 310
PROSPECT RD
GoodOver: DRY CREEK
0.86 MI. SOUTH OF LA 474, Sabine, LA
Built 1985 Load: 25.9 t ADT: 270
BRIDGES RD
GoodOver: KISATCHIE BAYOU
APP. 1.25 M. NE OF LA 118, Sabine, LA
Built 1984 Load: 25.9 t ADT: 60
BLACKWELL CREEK RD
GoodOver: BLACKWELL BAYOU
BLACKWELL CREEK ROAD, Sabine, LA
Built 1993 Load: 25.9 t ADT: 120
SHUTEYE RD
GoodOver: LEWIS CREEK
2.5 MILE WEST LA 6, Sabine, LA
Built 2005 Load: 25.9 t ADT: 210
TRAMEL RD
GoodOver: BAYOU SCIE TRIB.
1.5 MI. EAST OF LA 120, Sabine, LA
Built 1993 Load: 25.9 t ADT: 55
CATER RD
GoodOver: LITTLE SAN MIGUEL CREEK
CARTER ROAD, Sabine, LA
Built 1986 Load: 25.9 t ADT: 75
RYALS RD
GoodOver: LITON BRANCH
0.83 MI. SOUTH OF LA 174, Sabine, LA
Built 1986 Load: 25.9 t ADT: 160
HOLLYWOOD RD
GoodOver: BLUE BRANCH
0.2 M. E. OF LA 463, Vernon, LA
Built 1993 Load: 25.9 t ADT: 90
ROY LEE SNELL RD
GoodOver: ANACOCO CREEK
APP. 0.5 M W OF RIVERS RD, Vernon, LA
Built 1999 Load: 25.9 t ADT: 120
Packton-Alexandria
GoodOver: BEAR CREEK
3.76 M. WEST OF US 167, Winn, LA
Built 1992 Load: 25.9 t ADT: 125
Columbia Rd
GoodOver: Rawson Creek
0.1 Mi S of Roy Watson Rd, Catahoula, LA
Built 1986 Load: 25.9 t ADT: 50
Aplin Road
GoodOver: Ford Creek
1 Mi N of Red Cut Road, Catahoula, LA
Built 1989 Load: 25.9 t ADT: 50
Springridge Rd
GoodOver: SUGAR CREEK
0.3 Mi S of Columbia-H Rd, Catahoula, LA
Built 1989 Load: 25.9 t ADT: 40
D A Biglane Rd
GoodOver: VIDALIA CANAL
1.2 M N of LA 131, Concordia, LA
Built 1997 Load: 25.9 t ADT: 10
Magnolia Loop
GoodOver: ROUTH CREEK
LOGMI 0.66 FR 80 TO ODE, LaSalle, LA
Built 2000 Load: 25.9 t ADT: 50
Moffett Rd
GoodOver: DEVILS CREEK
LOGMI 0.83 FR ODE TO 63, LaSalle, LA
Built 2000 Load: 25.9 t ADT: 100
Wh Sulphur Spr Rd
GoodOver: KITTERLINE CREEK
LOGMI 2.87 FR 94 TO 101, LaSalle, LA
Built 1999 Load: 25.9 t ADT: 200
Wh Sulphur Spr Rd
GoodOver: HURRICANE CREEK
LOGMI 4.05 FR 94 TO 101, LaSalle, LA
Built 1998 Load: 25.9 t ADT: 220
Snyder Rd
GoodOver: TROUT CREEK
LOGMI 4.35 FR 507 TO 172, LaSalle, LA
Built 2000 Load: 25.9 t ADT: 100
W Baker St
GoodOver: CREEK
0.3 M W of US 84/LA 8, LaSalle, LA
Built 1997 Load: 25.9 t ADT: 25
Tram Rd
GoodOver: BAYOU FUNNY LOUIS
1.45 LOG MI FR 518 TO 450, LaSalle, LA
Built 1987 Load: 25.9 t ADT: 50
Cowart St
GoodOver: ELI COOPER BRIDGE CREEK
LOG MI 1.15 FR 358 TO ODE, LaSalle, LA
Built 1998 Load: 25.9 t ADT: 40
Taylor Chapel Rd
GoodOver: FUNNY LOUIS BAYOU
1.2 MI W of La 127, LaSalle, LA
Built 1999 Load: 25.9 t ADT: 110
Reeves Cutoff
GoodOver: Bayou Funny Louis
05. MI N of La 503, LaSalle, LA
Built 1997 Load: 25.9 t ADT: 50
Rainey Arena Rd
GoodOver: BAYOU FUNNY LOUIS
LOGMI 0.38 FR 648 TO 467, LaSalle, LA
Built 1999 Load: 25.9 t ADT: 60
Mixon Rd
GoodOver: CHICKASAW CREEK
LOGMI 1.67 FR 612 TO 618, LaSalle, LA
Built 1999 Load: 25.9 t ADT: 50
Sandy Dr
GoodOver: SANDY CREEK
NORTH OF LA 125, LaSalle, LA
Built 1992 Load: 25.9 t ADT: 120
Sandy Dr
GoodOver: SANDY CREEK
LOGMI 1.91 FR 594 TO 598, LaSalle, LA
Built 2000 Load: 25.9 t ADT: 210
Showing 6,901-6,950 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.