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
Hooterville Rd
GoodOver: CREEK
.2 M West of LA 506, Caldwell, LA
Built 1998 Load: 32.4 t ADT: 70
Big Ridge Rd
GoodOver: SAWYER POND BAYOU
0.05 mi E of Dannehl Rd, Caldwell, LA
Built 1996 Load: 32.4 t ADT: 40
Berry Rd
GoodOver: Creek
0.8M N of La126, Caldwell, LA
Built 1988 Load: 32.4 t ADT: 50
Hebron Rd
GoodOver: HART CREEK
2.19M NW of LA 506, Caldwell, LA
Built 1999 Load: 32.4 t ADT: 100
Wiles Rd
GoodOver: RICHLAND CREEK
0.3M N of LA 126, Caldwell, LA
Built 1988 Load: 32.4 t ADT: 70
7 Runs Road
GoodOver: WHITE OAK CREEK
0.5 M N of Chester Rd, Caldwell, LA
Built 2001 Load: 32.4 t ADT: 50
Countrywood Rd
GoodOver: CREEK
LOG MI 0.12 FR 293 TO 294, Caldwell, LA
Built 1997 Load: 32.4 t ADT: 70
Richmond Comm Rd
GoodOver: WINN BRANCH CREEK
0.5M W of LA 846, Caldwell, LA
Built 1996 Load: 32.4 t ADT: 110
South Blankston Rd
GoodOver: Ballard Bayou
4.1 MI SW of HWY 165, Caldwell, LA
Built 1996 Load: 32.4 t ADT: 99
LA0008
GoodOver: CREEL CREEK
1.6 MI EAST OF THE EAST I, Catahoula, LA
Built 1996 Load: 32.4 t ADT: 1,527
Raspberry Rd
GoodOver: MOUND BAYOU
LOGMI FR 303 TO ODE, Franklin, LA
Built 2012 Load: 32.4 t ADT: 125
LA0577
GoodOver: Ash Slough
1.1 Mi E of LA 425, Franklin, LA
Built 2021 Load: 32.4 t ADT: 1,341
Longview Rd
GoodOver: CREEK
LOGMI 1.88 FR 655 TO 0DE, Franklin, LA
Built 2010 Load: 32.4 t ADT: 300
Loflin Rd
GoodOver: CREEK
LOGMI 3.59 FR ODE TO 248, Franklin, LA
Built 2012 Load: 32.4 t ADT: 350
LA0015
GoodOver: CREEK
0.80 M S of LA 1242, Franklin, LA
Built 1995 Load: 32.4 t ADT: 4,592
LA0017
GoodOver: CREEK
5.02 MI NORTH OF LA 4, Franklin, LA
Built 1952 Load: 32.4 t ADT: 4,194
LA0869
GoodOver: CREEK
.36 MI NORTH OF LA 618, Franklin, LA
Built 1965 Load: 32.4 t ADT: 455
Mauld Rd
GoodOver: CREEK
LOG MI 5.94 FR 557 TO 437, Franklin, LA
Built 2002 Load: 32.4 t ADT: 100
Campbell Lane
GoodOver: CAMPBELL ROAD CREEK
LOGMI 0.59 FR 316 TO 318, Franklin, LA
Built 2005 Load: 32.4 t ADT: 25
Parish Line Rd.
GoodOver: TURKEY CREEK
2.79 mi. W of LA 17, Franklin, LA
Built 1994 Load: 32.4 t ADT: 70
COOPER LOOP
GoodOver: COOPER LOOP CREEK
0.2 MI SE OF LA 8, LaSalle, LA
Built 2011 Load: 32.4 t ADT: 48
Jeremy Rd
GoodOver: FUNNY LOUIS BAYOU RELIEF
0.55 MILES WEST OF LA.503, LaSalle, LA
Built 2016 Load: 32.4 t ADT: 225
Brasher Rd
GoodOver: COW CREEK
3.2 miles north of la 503, LaSalle, LA
Built 2011 Load: 32.4 t ADT: 80
US0165
GoodOver: CREEK
2.0 MI NORTH OF LA 3259, LaSalle, LA
Built 1941 Load: 32.4 t ADT: 5,116
LA0008
GoodOver: RILEY BRANCH CR
0.9 MI SW OF LA 774, LaSalle, LA
Built 1972 Load: 32.4 t ADT: 1,590
LA0124
GoodOver: CASTOR RELIEF
1.3 MI NORTH OF LA 125, LaSalle, LA
Built 1959 Load: 32.4 t ADT: 1,348
LA0124
GoodOver: BAYOU FUNNY LOUIS
5.2 MI EAST OF LA 506, LaSalle, LA
Built 1959 Load: 32.4 t ADT: 1,838
LA0500
GoodOver: LACROIX CREEK
2.6 MI WEST OF US 84, LaSalle, LA
Built 1989 Load: 32.4 t ADT: 926
LA0503
GoodOver: CREEK
2.0 MI EAST OF LA 771, LaSalle, LA
Built 1953 Load: 32.4 t ADT: 189
LA0503
GoodOver: CREEK
2.5 MI EAST OF LA 771, LaSalle, LA
Built 1958 Load: 32.4 t ADT: 189
LA0126
GoodOver: CREEK
6.9 MI EAST OF LA 771, LaSalle, LA
Built 1958 Load: 32.4 t ADT: 189
LA0126
GoodOver: CREEK
8.6 MI EAST OF LA 771, LaSalle, LA
Built 1958 Load: 32.4 t ADT: 189
LA0127
GoodOver: MASONS BRANCH
0.10 M S of LA 460, LaSalle, LA
Built 1997 Load: 32.4 t ADT: 2,211
LA0008
GoodOver: EARL CREEK
1.3 MI EAST OF US 84, LaSalle, LA
Built 1971 Load: 32.4 t ADT: 1,606
Ross Rd
GoodOver: CREEK
LOGMI 0.17 FR ODE TO 41, LaSalle, LA
Built 2000 Load: 32.4 t ADT: 50
Brooks Rd
GoodOver: DEVILS CREEK
LOGMI 0.43 FR 118 TO 103, LaSalle, LA
Built 1999 Load: 32.4 t ADT: 160
Windham Rd
GoodOver: CLEAR PRONG
LOG MILE 0.54 FROM 146 TO, LaSalle, LA
Built 2007 Load: 32.4 t ADT: 50
Carpenter St
GoodOver: HEMPHILL CREEK
LOG MILE 0.78 FROM 312 TO, LaSalle, LA
Built 2007 Load: 32.4 t ADT: 75
Cowart St
GoodOver: CREEK
LOG MI 1.41 FR 358 TO ODE, LaSalle, LA
Built 2005 Load: 32.4 t ADT: 100
Searcy-Eden
GoodOver: JUMPING GULLY CREEK
LOGMI 1.59 FR 508 TO 517, LaSalle, LA
Built 1999 Load: 32.4 t ADT: 120
US0065
GoodOver: TENSAS BAYOU
.9 MI SOUTH OF LA 566, Tensas, LA
Built 1957 Load: 32.4 t ADT: 2,033
US0065
GoodOver: CREEK
.1 MI SOUTH OF LA 568, Tensas, LA
Built 1957 Load: 32.4 t ADT: 2,033
LA0128
GoodOver: INDIAN SLOUGH CANAL
1.2 miles NW of LA 605, Tensas, LA
Built 1932 Load: 32.4 t ADT: 2,306
Sanderson RD
GoodOver: Little Choctaw Bayou
LOGMI 1.25 S of Hwy 573, Tensas, LA
Built 2000 Load: 32.4 t ADT: 100
Sanderson RD
GoodOver: Lil CHOCTAW BAYOU
1.2M S of LA 573, Tensas, LA
Built 2000 Load: 32.4 t ADT: 100
River Oaks Rd
GoodOver: Darain Bayou
0.3 Mi.N. of LA 73, Ascension, LA
Built 2020 Load: 32.4 t ADT: 30
LA00042
GoodOver: MUDDY CREEK
01.31 MI E OF LA 73, Ascension, LA
Built 2018 Load: 32.4 t ADT: 24,000
US0061
GoodOver: CANAL
0.62 M NW of US 61&LA 22, Ascension, LA
Built 1956 Load: 32.4 t ADT: 14,802
US0061
GoodOver: CANAL
1.2 M NW of US 61&LA 22, Ascension, LA
Built 1956 Load: 32.4 t ADT: 14,802
US0061
GoodOver: CANAL
0.23 M NW of US 61&LA 431, Ascension, LA
Built 1956 Load: 32.4 t ADT: 16,379
Showing 8,101-8,150 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.