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
Willis Ave.
FairOver: BOGUE LUSA CREEK
.5 MI. W OF HWY. 60, Washington, LA
Built 1962 Load: 22.4 t ADT: 15,320
US0090-B
FairOver: OFF RAMP OVER WHITNEY AV
1.2 MI WEST OF LA 23, Jefferson, LA
Built 1987 Load: 22.7 t ADT: 15,955
US0090-B
FairOver: U-TURN #4
.6 MI EAST OF LA 23, Jefferson, LA
Built 1985 Load: 22.7 t ADT: 15,955
US0090-B
FairOver: U-TURN LANES
.3 MI EAST OF LA 45, Jefferson, LA
Built 1992 Load: 22.7 t ADT: 15,955
MANHATTAN BLVD
FairOver: BAYOU FATMA
0.5 MI S. OF LAPALCO BLVD, Jefferson, LA
Built 1988 Load: 22.7 t ADT: 2,000
A. TOUSSAINT BLVD
FairOver: BAYOU ST. JOHN
.6 MI S OF LAKESHORE, Orleans, LA
Built 1963 Load: 22.7 t
I0310
FairOver: MISSISSIPPI RIVER
4.4 MI S OF US 61, St. Charles, LA
Built 1983 Load: 22.7 t ADT: 47,396
PROSPECT BLVD
FairOver: DRAIN CANAL
0.6 MI S OF LA 24, Terrebonne, LA
Built 1995 Load: 22.7 t ADT: 10,390
LA0013
FairOver: CREEK
1.8 Mi N of La 370, Acadia, LA
Built 1962 Load: 22.7 t ADT: 5,613
LA0013
FairOver: BAYOU MALLET
.6 MI. SOUTH OF LA 3116, Acadia, LA
Built 1960 Load: 22.7 t ADT: 5,613
LA0035
FairOver: BAYOU WIKOFF
2.3 MI NORTH OF LA 98, Acadia, LA
Built 1965 Load: 22.7 t ADT: 4,777
LA0368
FairOver: B DES CANNES
1.59 MI EAST OF LA 97, Acadia, LA
Built 1954 Load: 22.7 t ADT: 598
LA0106
FairOver: BOGGY BAYOU
6.47 MI WEST OF LA 10, Evangeline, LA
Built 1960 Load: 22.7 t ADT: 1,247
LA0748
FairOver: BAYOU
1.39 MI EAST OF LA 1169, Evangeline, LA
Built 1939 Load: 22.7 t ADT: 1,397
LA3042
FairOver: LAKE CHICOT
4.93 MI NORTH OF US 167, Evangeline, LA
Built 1959 Load: 22.7 t ADT: 2,684
LA3187
FairOver: THIBS CUT
1.5 MI NW JCT LA 13, Evangeline, LA
Built 1984 Load: 22.7 t ADT: 89
Rayford Ln.
FairOver: DURALDGE BAYOU
1.48 MI S of Rodnis Rd, Evangeline, LA
Built 1965 Load: 22.7 t ADT: 44
LA0086
FairOver: DRAINAGE CANAL
0.91 MI WEST OF LA 347, Iberia, LA
Built 1980 Load: 22.7 t ADT: 3,834
LA0010
FairOver: LITTLE WAUKSHA B
1.2 MI EAST OF LA 182, St. Landry, LA
Built 1961 Load: 22.7 t ADT: 3,283
LA0010
FairOver: BAYOU WAUKSHA
2.9 MI EAST OF LA 182, St. Landry, LA
Built 1961 Load: 22.7 t ADT: 3,283
LA0031
FairOver: BAYOU FUSELIER
LA 93 @ LA 31, St. Landry, LA
Built 1961 Load: 22.7 t ADT: 4,574
LA0093
FairOver: BAYOU BOURBEAU
2.9 MI WEST OF LA 760-2, St. Landry, LA
Built 1959 Load: 22.7 t ADT: 4,266
LA0031
FairOver: BAYOU TECHE
0.02 MI W of LA 347, St. Landry, LA
Built 1960 Load: 22.7 t ADT: 1,807
I0049
FairOver: BAYOU CARENCRO
2.10 Mi S of LA 93, St. Landry, LA
Built 1963 Load: 22.7 t ADT: 22,211
LA0093
FairOver: BAYOU FUSELIER
3.1 MI W OF LA 31, St. Martin, LA
Built 1959 Load: 22.7 t ADT: 3,987
LA0014
FairOver: ISLE MARRON CANAL
1.6 MI E. OF LA 35, Vermilion, LA
Built 1959 Load: 22.7 t ADT: 7,329
US0080
FairOver: RED RIVER @ TEXAS ST.
.01 MI EAST OF LA 1, Bossier, LA
Built 1934 Load: 22.7 t ADT: 11,856
Chandler Rd
FairOver: FiFi Bayou Trib
0.2 MI SOUTH OF US 80, Bossier, LA
Built 2000 Load: 22.7 t ADT: 1,200
Ivan Lake Rd
FairOver: Ivan Lake
0.7 MI N OF HWY 160, Bossier, LA
Built 1989 Load: 22.7 t ADT: 140
LAKESHORE DRIVE
FairOver: TRIB TO CROSS LAKE
1.6 MI W OF LA173, Caddo, LA
Built 1960 Load: 22.7 t ADT: 7,168
LA0512
FairOver: BA SAN PATRICIO R
2.50 MI EAST OF LA 171, De Soto, LA
Built 1957 Load: 22.7 t ADT: 215
Peachtree Rd
FairOver: Trib. to Crows Creek
2.7 Mi. E of LA 532, Webster, LA
Built 2023 Load: 22.7 t ADT: 44
Dorcheat Rd
FairOver: TRIBUTARY TO COW CREEK
11 MI N OF HWY 79-80, Webster, LA
Built 1979 Load: 22.7 t ADT: 294
LA0580
FairOver: JOES BAYOU
.01 MI WEST OF LA 877, East Carroll, LA
Built 1958 Load: 22.7 t ADT: 448
US0080
FairOver: CREEK
1.0 MI EAST OF LA 563, Lincoln, LA
Built 1952 Load: 22.7 t ADT: 2,471
PIPES RD
FairOver: I 20
5.35 MI EAST OF LA 33, Lincoln, LA
Built 1960 Load: 22.7 t ADT: 3,600
LA0822
FairOver: CREEK
3.45 MI EAST OF US 167, Lincoln, LA
Built 1953 Load: 22.7 t ADT: 1,568
SHADY GROVE RD
FairOver: WILSON CREEK
5 MI SW OF SIMMSBORO, Lincoln, LA
Built 1978 Load: 22.7 t ADT: 15
US0065
FairOver: BAYOU VIDAL
.1 MI SOUTH OF LA 603, Madison, LA
Built 1963 Load: 22.7 t ADT: 2,374
US0065
FairOver: ALLIGATOR BAYOU
4.4 MI NORTH OF SOUTH INT, Madison, LA
Built 1963 Load: 22.7 t ADT: 2,098
US0065
FairOver: ROUNDAWAY BAYOU
1.5 MI NORTH OF NORTH INT, Madison, LA
Built 1963 Load: 22.7 t ADT: 2,192
COW BAYOU RD
FairOver: COW BAYOU
0.7 MI S of US 80, Madison, LA
Built 1992 Load: 22.7 t ADT: 130
LA3249
FairOver: I-20
3.2 MI EAST OF LA 546, Ouachita, LA
Built 1963 Load: 22.7 t ADT: 21,250
REDWOOD DR
FairOver: HARRISON CREEK
NORTHSIDE OF MONROE, Ouachita, LA
Built 1962 Load: 22.7 t ADT: 750
LA0134
FairOver: BEOUF RIVER
2.1 MI WEST OF LA 583, Richland, LA
Built 1967 Load: 22.7 t ADT: 540
LA0002
FairOver: FOURMILE CREEK
1.8 MI WEST OF LA 15, Union, LA
Built 1964 Load: 22.7 t ADT: 11,805
LA0017
FairOver: CREEK
3.2 MI NORTH OF LA 577, West Carroll, LA
Built 1924 Load: 22.7 t ADT: 2,370
LA0012
FairOver: CREEK
4.0 MI E of LA 27, Beauregard, LA
Built 1961 Load: 22.7 t ADT: 4,041
US0190
FairOver: TROUT CREEK
4.4 MI E of LA 111, Beauregard, LA
Built 1964 Load: 22.7 t ADT: 3,187
US0190
FairOver: COWPEN CREEK
0.07 MI E of LA 3226, Beauregard, LA
Built 1964 Load: 22.7 t ADT: 5,903
Showing 1,501-1,550 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.