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
ST. MARGARET RD
FairOver: COULEE
0.44 MI EAST OF LA 95, Acadia, LA
Built 2006 Load: 26.2 t ADT: 336
US0190
FairOver: BAYOU
0.2 MI EAST OF LA 367, St. Landry, LA
Built 1932 Load: 26.2 t ADT: 8,492
LA0353
FairOver: BAYOU CAPUCIN
5.1 MI SOUTH OF LA 94, St. Martin, LA
Built 1976 Load: 26.2 t ADT: 3,749
Veterans Blvd.
FairOver: CANAL
0.2 Mi NW of LA 70, St. Mary, LA
Built 1978 Load: 26.2 t ADT: 300
W. Liberty Farm Rd
FairOver: DE JOHN COULEE
1.09 MI W. OF LA 35, Vermilion, LA
Built 2014 Load: 26.2 t ADT: 152
Keithvil-Keatchie
FairOver: CYPRESS B.
3 M. S.W. OLD MANSFI, Caddo, LA
Built 1980 Load: 26.2 t ADT: 324
Post Oak Drive
FairOver: BUCHANAN BAYOU TRIB
0.3M EAST SPARKS DAVIS RD, Caddo, LA
Built 1991 Load: 26.2 t ADT: 38
KENNEDY DR
FairOver: HOLLYWOOD DITCH
0.03 MI S OF HOLLYWOOD, Caddo, LA
Built 1983 Load: 26.2 t ADT: 1,392
Old Arcadia Rd
FairOver: TRIB TO COOLEY BRANCH
0.4 MI E OF HWY 79, Webster, LA
Built 1930 Load: 26.2 t ADT: 1,041
BRITTON RD
FairOver: NORTH CHENIERE CREEK
0.4 MI. SOUTH OF I-20, Ouachita, LA
Built 1980 Load: 26.2 t ADT: 387
LA0878
FairOver: CREEK
.96 MI WEST OF LA 2, West Carroll, LA
Built 1980 Load: 26.2 t ADT: 565
LA0027
FairOver: PERSIMMON MARSH
5.2 MI N of LA 110, Beauregard, LA
Built 1994 Load: 26.2 t ADT: 3,333
LA1138-2
FairOver: BAYOU CONTRABAND
.7 MI SOUTH OF I-10, Calcasieu, LA
Built 1961 Load: 26.2 t ADT: 20,242
E. LINCOLN RD
FairOver: HIPPOLYTE COULEE
0.2 MI E OF LA 385, Calcasieu, LA
Built 1986 Load: 26.2 t ADT: 678
LA0027
FairOver: CANAL
4.58 MI. N OF INT LA1143, Cameron, LA
Built 1974 Load: 26.2 t ADT: 3,506
LA0395
FairOver: GUM GULLEY
2.1 MI NORTH OF I-10, Jefferson Davis, LA
Built 1957 Load: 26.2 t ADT: 3,596
LA0191
FairOver: CREEK
3.3 MI NORTH OF LA 174, Sabine, LA
Built 1960 Load: 26.2 t ADT: 610
LA0004
FairOver: CREEK
1.2 MI WEST OF LA 3239, Caldwell, LA
Built 1978 Load: 26.2 t ADT: 1,931
Childress Rd
FairOver: CREEK
0.8M NE of Dunn Road, Caldwell, LA
Built 1978 Load: 26.2 t ADT: 60
US0084
FairOver: BLACK RIVER
16 MILES FROM JCT. US 84, Concordia, LA
Built 2009 Load: 26.2 t ADT: 7,080
I0010
FairOver: I0010
9.1 MI NW of LA 641, Ascension, LA
Built 1975 Load: 26.2 t ADT: 8,115
I0010
FairOver: WASHINGTON STREET
I-10 WEST BOUND JUST PAST, East Baton Rouge, LA
Built 1963 Load: 26.2 t ADT: 32,092
LA0427
FairOver: DAWSON CR.BRG.(ACADIAN)
0.1 M S of I-10, East Baton Rouge, LA
Built 1964 Load: 26.2 t ADT: 22,447
I0012
FairOver: JONES CREEK
I0012, East Baton Rouge, LA
Built 1986 Load: 26.2 t ADT: 28,013
I0012
FairOver: JONES CREEK
I0012, East Baton Rouge, LA
Built 1986 Load: 26.2 t ADT: 32,092
LA0039
FairOver: INDUSTRIAL CANAL
1.6 MI EAST OF LA 3021, Orleans, LA
Built 1957 Load: 26.3 t ADT: 47,739
LA0024
FairOver: ST LOUIS CANAL
LA0024, Terrebonne, LA
Built 1959 Load: 26.3 t ADT: 14,232
W. JEFF DAVIS AVE
FairOver: I-10
4.8 MI EAST OF LA 1111, Acadia, LA
Built 1966 Load: 26.3 t ADT: 4,801
LA1168
FairOver: BAYOU GRAND LOUIS
6.05 MI EAST OF LA 167, Evangeline, LA
Built 1961 Load: 26.3 t ADT: 409
LA0115
FairOver: ELM BAYOU
.01 MI SE OF LA 181, Evangeline, LA
Built 1957 Load: 26.3 t ADT: 711
LA0676
FairOver: CREEK
0.6 MI WEST OF LA 14, Iberia, LA
Built 1968 Load: 26.3 t ADT: 553
LA0752
FairOver: DRAINAGE CANAL
0.2 MI WEST OF LA 751, St. Landry, LA
Built 1968 Load: 26.3 t ADT: 475
US0090/FRONTAGE RD
FairOver: DRAIN
2.7 Miles East of LA 668, St. Mary, LA
Built 1973 Load: 26.3 t ADT: 1,260
LA0164
FairOver: CLARKE BAYOU REL
.18 MI EAST OF LA 614, Bossier, LA
Built 1943 Load: 26.3 t ADT: 3,472
I0220
FairOver: RED RIVER/LA 3049/538
.01 MI EAST OF LA 3049, Bossier, LA
Built 1977 Load: 26.3 t ADT: 42,148
LA0169
FairOver: CREEK
8.8 MI NORTH OF LA 172, Caddo, LA
Built 1984 Load: 26.3 t ADT: 1,540
LA0005
FairOver: CREEK
5.2 MI NORTH OF LA 3015, De Soto, LA
Built 1948 Load: 26.3 t ADT: 4,413
BROWN RD
FairOver: I-20
2.2 MI WEST OF LA 577, Madison, LA
Built 1971 Load: 26.3 t ADT: 22,200
LA0142
FairOver: CREEK
2.77 MI NORTH OF US 425, Morehouse, LA
Built 1950 Load: 26.3 t ADT: 4,706
LA0142
FairOver: WILLIAMSON CREEK
2.5 MI NORTH OF LA 543, Morehouse, LA
Built 1950 Load: 26.3 t ADT: 4,706
LA0594
FairOver: YOUNGS BAYOU
.6 MI EAST OF I-20, Ouachita, LA
Built 1965 Load: 26.3 t ADT: 8,579
LA0026
FairOver: CREEK
4.0 MI. SE OF LA 377, Allen, LA
Built 1968 Load: 26.3 t ADT: 2,151
LA0111
FairOver: CREEK
AT INT US190, Beauregard, LA
Built 1967 Load: 26.3 t ADT: 1,480
OILFIELD ROAD
FairOver: I-10
1.0 MI N of US 90, Jefferson Davis, LA
Built 1964 Load: 26.3 t ADT: 3,610
LA0119
FairOver: CANE RIVER
.13 MI. E OF INT LA1, Natchitoches, LA
Built 1970 Load: 26.3 t ADT: 189
LA0465
FairOver: CYPRESS BRANCH
3.88 MI. EAST OF LA 489, Rapides, LA
Built 1947 Load: 26.3 t ADT: 690
LA0465
FairOver: CYPRESS BAYOU
4.41 MI. EAST OF LA 489, Rapides, LA
Built 1947 Load: 26.3 t ADT: 472
LA1199
FairOver: SPRING CREEK
1.24 MI. N OF LA488, Rapides, LA
Built 1965 Load: 26.3 t ADT: 362
LA0127
FairOver: CASTOR CREEK
3.8 MI NORTH OF LA 125, Caldwell, LA
Built 1970 Load: 26.3 t ADT: 314
LA0566
FairOver: LITTE TENSAS RIVE
2.25 MI E OF LA 15, Concordia, LA
Built 1970 Load: 26.3 t ADT: 216
Showing 2,151-2,200 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.