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
SILOAM CHURCH RD
PoorOver: DRY CREEK
.57 MI EAST OF LA 505, Jackson, LA
Built 1957 Load: 14.9 t ADT: 825
LA0151
PoorOver: STOWE CR REL BR
.1 MI EAST OF LA 33, Union, LA
Built 1961 Load: 14.9 t ADT: 527
FLOYD LITTLE RD.
PoorOver: LULU CANAL
0.2 MI. W of LA 390, Cameron, LA
Built 1964 Load: 14.9 t ADT: 109
FDR 120
PoorOver: PANTHER BAYOU
NO DATA ENTERED, Grant, LA
Built 1981 Load: 14.9 t ADT: 15
FDR 120
PoorOver: CANEY BRANCH
NO DATA ENTERED, Grant, LA
Built 1981 Load: 14.9 t ADT: 15
FDR 120
PoorOver: S.FORK SADDLE BAYOU
NO DATA ENTERED, Grant, LA
Built 1982 Load: 14.9 t ADT: 17
FDR 240
PoorOver: BRUSHY CREEK
NO DATA ENTERED, Rapides, LA
Built 1980 Load: 14.9 t ADT: 30
FDR 400
PoorOver: DRAKES CREEK
9.6 MI. ENE. OF ROSPINE, Vernon, LA
Built 1982 Load: 14.9 t ADT: 60
FDR 909
PoorOver: DARBONNE NW FORK
NATIONAL FOREST ROAD, Claiborne, LA
Built 1978 Load: 14.9 t ADT: 5
LA0008
PoorOver: BIG CREEK
3.02 MI. EAST OF US 165, Grant, LA
Built 1968 Load: 14.9 t ADT: 1,590
Joe Sevario Rd
PoorOver: Henderson Bayou
0.1 Mi S. of LA 933, Ascension, LA
Built 1969 Load: 14.9 t ADT: 700
LA0070
PoorOver: PIERRE PASS
3.0 MILES N. OF LA 101, Assumption, LA
Built 1967 Load: 14.9 t ADT: 5,560
US0190
PoorOver: US 190 OVER US 61-SCENIC
2.30 MI E OF LA 1, East Baton Rouge, LA
Built 1940 Load: 14.9 t ADT: 26,376
LA0081
PoorOver: BAYOU BLACK
1.9 Mi. W. of LA 976, Pointe Coupee, LA
Built 1969 Load: 14.9 t ADT: 231
Bridge Rd
PoorOver: BAYOU GROSSE TETE
130 FT E OF LA 77, Pointe Coupee, LA
Built 1979 Load: 14.9 t ADT: 1,540
MOFFET RD
PoorOver: CHAUVIN BAYOU
0057 LOG MI FROM IN, Terrebonne, LA
Built 1979 Load: 15.2 t ADT: 5,123
Coulee Rd.
PoorOver: Peebles Coulee
0.2 Mi. E. of La 83, Iberia, LA
Built 1970 Load: 15.2 t ADT: 180
Gloria Switch Rd
PoorOver: COULEE
1.04 MI EAST OF LA 728, Lafayette, LA
Built 1983 Load: 15.2 t ADT: 8,240
LA0742
PoorOver: LITTLE BAYOU TECHE
0.5 MI WEST OF LA 31, St. Landry, LA
Built 1971 Load: 15.2 t ADT: 1,741
Lost Cayou Rd
PoorOver: DRAINAGE CANAL
0.52 Mi N of US 190, St. Landry, LA
Built 1960 Load: 15.2 t ADT: 100
Ellis Bridge Rd
PoorOver: COULEE
1 Mi W of la 91, Vermilion, LA
Built 1960 Load: 15.2 t ADT: 160
LA0501
PoorOver: CREEK
1.90 MI SOUTH OF LA 4, Bienville, LA
Built 1960 Load: 15.2 t ADT: 318
I0020
PoorOver: ST. LOUIS & SW RR
.2 MI EAST OF LA 1, Caddo, LA
Built 1965 Load: 15.2 t ADT: 84,672
NEW COMER RD.
PoorOver: CREEK
0.7 MI E of LA 383, Jefferson Davis, LA
Built 1971 Load: 15.2 t ADT: 40
LA0431
PoorOver: VILLAR CANAL
0.2 M S of LA 42, Ascension, LA
Built 1971 Load: 15.2 t ADT: 9,608
Hubbs Rd
PoorOver: BEAVER BAYOU
1.8 MI. S. of 64, East Baton Rouge, LA
Built 1968 Load: 15.2 t ADT: 1,386
LA0955
PoorOver: Sessions Bayou
2.7 Mi S of La 10, East Feliciana, LA
Built 1966 Load: 15.2 t ADT: 989
LA0995
PoorOver: FALSE BRANCH
0.5 M E of LA 69, Iberville, LA
Built 1964 Load: 15.2 t ADT: 196
LA0024
PoorOver: CO. CANAL (BOURG)
1.20 MI W OF LA 24, Terrebonne, LA
Built 1951 Load: 15.4 t ADT: 8,645
Division Rd
PoorOver: COULEE DU PORTAGE
0.2 Miles NE of LA 680, St. Martin, LA
Built 1965 Load: 15.4 t ADT: 129
LA0339
PoorOver: Laports Coulee
1.3 Miles North OF LA 14, Vermilion, LA
Built 1950 Load: 15.4 t ADT: 4,990
REEDS BRIDGE RD
PoorOver: CALCASIEU RIVER RELIEF
1.8 MI WEST OF US 165, Allen, LA
Built 1960 Load: 15.4 t ADT: 132
Shirley Plant Rd
PoorOver: BAYOU BEOUF
0.29 MI. WEST OF LA 1177, Avoyelles, LA
Built 1978 Load: 15.4 t ADT: 43
Voorhies Ln
PoorOver: BAYOU ROSEAU DR. CANAL
0.10 MI. WEST OF LA 451, Avoyelles, LA
Built 1984 Load: 15.4 t ADT: 150
LA0117
PoorOver: FLATWOODS CREEK
0.34 MI. SOUTH OF LA 6, Natchitoches, LA
Built 1977 Load: 15.4 t ADT: 3,420
LA0463
PoorOver: BLUE BRANCH
1.3 MI NORTH OF LA 10, Vernon, LA
Built 1944 Load: 15.4 t ADT: 482
LA0967
PoorOver: MILL CREEK
2.9 M N of LA 957&LA 421, West Feliciana, LA
Built 1955 Load: 15.4 t ADT: 251
Hood Rd
PoorOver: COLYELL CREEK
10.7 MI SE OF LA 447, Livingston, LA
Built 1960 Load: 15.4 t ADT: 300
Wes Arledge Rd
PoorOver: HORNSBY CREEK
.2 W OF JCT US 190&LA1024, Livingston, LA
Built 2000 Load: 15.4 t ADT: 6
Walsh Rd
PoorOver: YELLOW WATER RIVER
0.2 MI W of Happywoods Rd, Tangipahoa, LA
Built 1960 Load: 15.4 t ADT: 4
LA0655
PoorOver: BAYOU LAFOURCHE
.79 MI EAST OF LA 1, Lafourche, LA
Built 1940 Load: 15.6 t ADT: 2,380
Olsen ave
PoorOver: BARRIERE ROAD
1.8 MI. S. OF HWY. 23, Plaquemines, LA
Built 1960 Load: 15.6 t
Eighty Arpent Rd
PoorOver: Delahoussaye Canal
3.4 Miles SE of LA 673, Iberia, LA
Built 1967 Load: 15.6 t ADT: 19
LAKE FAUSSE ST PK
PoorOver: LAKE FAUSSE POINT
.16 MI S of Levee Rd, St. Martin, LA
Built 1980 Load: 15.6 t ADT: 66
LA0182
PoorOver: CHARENTON
1.1 Miles South of LA 83, St. Mary, LA
Built 1941 Load: 15.6 t ADT: 6,242
LA0082
PoorOver: OLD ICC L PRAIRE
6.67 MI N. OF LA 3147, Vermilion, LA
Built 1965 Load: 15.6 t ADT: 2,899
I0020
PoorOver: STL&SW-KCS RR/WESTERFIEL
1.04 MI EAST LA 1, Bossier, LA
Built 1966 Load: 15.6 t ADT: 69,892
BAILEY DRIVE
PoorOver: MACKS BAYOU
0.1 MI. NO. OF LA 78, Bossier, LA
Built 1960 Load: 15.6 t ADT: 568
Ida Missionary Rd
PoorOver: NANCE BRANCH
1 MI. E. US HWY 71, Caddo, LA
Built 1976 Load: 15.6 t ADT: 77
ROUGH EDGE RD
PoorOver: I 20
2.2 MI EAST OF LA 33, Lincoln, LA
Built 1960 Load: 15.6 t ADT: 3,600
Showing 11,801-11,850 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.