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
N. Hoover Rd
PoorOver: CREEK
2.3M S OF LA 3158 EXIT, Tangipahoa, LA
Built 1993 Load: 20.4 t ADT: 4,707
ALMONASTER AVE
PoorOver: CITY STREET/RAILROAD
.15 MI S OF DOWNMAN ROAD, Orleans, LA
Built 1991 Load: 20.7 t ADT: 22,680
JOHNSTON STREET
PoorOver: COULEE MINE BR
0.3 MILES EAST OF LA 3025, Lafayette, LA
Built 1958 Load: 20.7 t ADT: 29,320
LA0155
PoorOver: BRUSH CREEK
3.5 MI NORTH OF LA 4, Bienville, LA
Built 1974 Load: 20.7 t ADT: 972
LA0793
PoorOver: SLOUGH
.57 MI WEST OF LA 794, Bienville, LA
Built 1978 Load: 20.7 t ADT: 125
LA3094
PoorOver: CROSS BAYOU
1.9 Miles North of US80, Caddo, LA
Built 1960 Load: 20.7 t ADT: 14,003
LA3094
PoorOver: CROSS BAYOU
0.1 MI S OF LA 173, Caddo, LA
Built 1960 Load: 20.7 t ADT: 16,911
LA0001
PoorOver: KCS RR/JONES ST
2.6 MI NORTH OF LA 3032, Caddo, LA
Built 1954 Load: 20.7 t ADT: 15,401
FDR 119
PoorOver: SOCIA CREEK
NO DATA ENTERED, Grant, LA
Built 1970 Load: 20.7 t ADT: 30
FDR 421
PoorOver: DRAKES CREEK
7 MI. ESE OF PICKENING, Vernon, LA
Built 1984 Load: 20.7 t ADT: 60
Coldwater
PoorOver: RANGE CREEK
APP. 2.75 MI. NW OF US 84, Winn, LA
Built 1970 Load: 20.7 t ADT: 61
LA0427
PoorOver: BAYOU MANCHAC
2.1 MI W OF LA 42, Ascension, LA
Built 1972 Load: 20.7 t ADT: 11,384
Frenchtown Rd
PoorOver: BEAVER BAYOU
0.4 Mi. E of Central THWY, East Baton Rouge, LA
Built 1963 Load: 20.7 t ADT: 4,745
LA0320
PoorOver: TECHE BAYOU/OLIVIER
0.2 Mi. N. of La 182, Iberia, LA
Built 1963 Load: 20.9 t ADT: 3,241
LA0170
PoorOver: TIGER BRANCH
3.2 MI EAST OF LA 1, Caddo, LA
Built 1930 Load: 20.9 t ADT: 1,209
US0080
PoorOver: COOLEY BRANCH
1.79 MI EAST OF LA 159, Webster, LA
Built 1954 Load: 20.9 t ADT: 3,955
LA0556
PoorOver: JACK CREEK
3.94 MI WEST OF LA 144, Jackson, LA
Built 1968 Load: 20.9 t ADT: 376
PLUM HILL RD
PoorOver: DRAIN TO GUYTON CREEK
1.4 MI. N. INT. 178, Ouachita, LA
Built 1976 Load: 20.9 t ADT: 30
RAY RD
PoorOver: BOOKER BRANCH
1 MI NW CADEVILLE, Ouachita, LA
Built 1965 Load: 20.9 t ADT: 35
Spring Bayou Rd
PoorOver: SPRING BAYOU
2 MI. NORTH OF GOUDE, Avoyelles, LA
Built 1978 Load: 20.9 t ADT: 150
LA0124
PoorOver: BROKE LEG BAYOU
0.6 MI NORTH OF LA 3102, Catahoula, LA
Built 1960 Load: 20.9 t ADT: 287
LA0063
PoorOver: TRIB OF BLUFF CK
LA0063, East Feliciana, LA
Built 1957 Load: 20.9 t ADT: 1,584
LA0315
PoorOver: PROVOST BAYOU
8.6 MI SOUTH OF LA 661, Terrebonne, LA
Built 1953 Load: 21.1 t ADT: 6,715
Saltzman Rd
PoorOver: COULEE
1.3 Mi S of La 711, Vermilion, LA
Built 1968 Load: 21.1 t ADT: 140
LA0002
PoorOver: JEEMS BAYOU
2.26 MI WEST OF LA 1, Caddo, LA
Built 1973 Load: 21.1 t ADT: 1,464
US0080
PoorOver: BAYOU DORCHEAT
.2 MI EAST OF US 371, Webster, LA
Built 1954 Load: 21.1 t ADT: 9,109
Brown Creek Rd
PoorOver: BROWN CREEK
1.79 MI. NORTH OF LA 28, Rapides, LA
Built 1993 Load: 21.1 t ADT: 50
Poole Road (North)
PoorOver: Cocodrie Bayou
LOGMI 5.7 M NW of H 15, Concordia, LA
Built 1975 Load: 21.1 t ADT: 110
Catalina Ave
PoorOver: ENGRS. DEPOT CANAL
0.10M E OF N.SHERWOOD FR., East Baton Rouge, LA
Built 1984 Load: 21.1 t ADT: 5,443
US0090
PoorOver: WEST PEARL RIVER
US0090, St. Tammany, LA
Built 1933 Load: 21.1 t ADT: 1,215
LA3087
PoorOver: HOLLYWOOD CANAL
1.20 MI S. OF JCT US90, Lafourche, LA
Built 1988 Load: 21.4 t ADT: 13,617
LA3087
PoorOver: HOLLYWOOD CANAL
1.20 MI S OF JCT US90, Lafourche, LA
Built 1988 Load: 21.4 t ADT: 8,036
Lake Forest BLVD
PoorOver: LAWRENCE CANAL
0.1 MI. E. OF BENTLE, Orleans, LA
Built 1975 Load: 21.4 t
9th St
PoorOver: ST LOUIS CANAL
0005 LOG MI FROM INT, Terrebonne, LA
Built 1965 Load: 21.4 t ADT: 3,492
CC Camp Road
PoorOver: LAKE CHICOT
1.5M NE OF LA 3042, Evangeline, LA
Built 1980 Load: 21.4 t ADT: 150
LA0154
PoorOver: BRUSHY CREEK
3.1 MI N. of LA 516, Bienville, LA
Built 1974 Load: 21.4 t ADT: 429
US0071
PoorOver: BAYOU RIGOLETTE
1.1 MI NORTH OF LA 492, Grant, LA
Built 1950 Load: 21.4 t ADT: 2,063
LA0431
PoorOver: NEW RIVER
1.37 MI NE JCT US 61, Ascension, LA
Built 1982 Load: 21.4 t ADT: 9,608
Bentley Dr
PoorOver: WHITE BAYOU
1.4M W OF INT LA 67, East Baton Rouge, LA
Built 1970 Load: 21.4 t ADT: 2,210
Stillhouse Rd
PoorOver: Stillhouse Bayou Trib
1.4 M NORTH OF HWY 537, Bossier, LA
Built 1991 Load: 21.6 t ADT: 40
LA0563
PoorOver: CREEK
3.29 MI NORTH OF LA 544, Lincoln, LA
Built 1973 Load: 21.6 t ADT: 1,064
EVANS RD
PoorOver: LONG BRIDGE CREEK
.1 MI. H. W. MORGAN, Ouachita, LA
Built 1965 Load: 21.6 t ADT: 4
Brassette Ln
PoorOver: SPRING CREEK
1.63 M E OF JCT LA 362, Avoyelles, LA
Built 1998 Load: 21.6 t ADT: 40
Catfish Kitchen Rd
PoorOver: BAYOU BOEUF
APP. 0.5 MI. S. OF LA 115, Avoyelles, LA
Built 1997 Load: 21.6 t ADT: 60
Lil California Rd
PoorOver: DRAINAGE CANAL
2.11 M. E. OF END LA 1194, Avoyelles, LA
Built 1960 Load: 21.6 t ADT: 100
Percy Dreher Rd
PoorOver: LITTLE SANDY CREEK
1.6 MI SW JCT LA959 LA409, East Feliciana, LA
Built 1999 Load: 21.6 t ADT: 18
Phoenix square
PoorOver: CREEK
1.4 MI SE OF RT 190, Tangipahoa, LA
Built 1975 Load: 21.6 t ADT: 5,021
I0010
PoorOver: VET MEM HWY
1.8 MI EAST OF LA 49, Jefferson, LA
Built 1967 Load: 21.7 t ADT: 137,542
LA0151
PoorOver: I-20
LA 151 OVER I-20, Bienville, LA
Built 1963 Load: 21.7 t ADT: 9,385
LA0517
PoorOver: CREEK
3.99 MI WEST OF LA 9, Bienville, LA
Built 1973 Load: 21.7 t ADT: 438
Showing 12,251-12,300 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.