County profile · official public datasets

Acadia County, LA

282 public highway bridges tracked in the FHWA National Bridge Inventory: 42.9% rated Good, 48.2% Fair, 8.9% Poor.

282
Public bridges
42.9%
Good condition
8.9%
Poor condition

The verdict

According to the Federal Highway Administration's 2024 National Bridge Inventory.

Acadia County posts a better-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.

Top 42%
lowest Poor share in state
8.9%
Poor-condition share
282
public highway bridges
1978
avg year built

Poor is an FHWA condition category from the lowest applicable component rating (4 or below), not a live crossing-safety or closure decision. Rankings cover counties with at least five public highway bridges.

Acadia County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Acadia County ranks #27 of 64 Louisiana counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 8.9%). Acadia County, Louisiana contains 282 public highway bridges. Roughly 42.9% are rated “Good,” 48.2% “Fair,” and 8.9% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

Total bridges

282

Public highway bridges in Acadia County

Good condition

42.9%

121 of 282 rated 7-9

Fair condition

48.2%

136 of 282 rated 5-6

Poor condition

8.9%

25 of 282 rated 4 or below

In-state Poor-share rank

#27 of 64

Among Louisiana counties with 5+ bridges, lower share ranks better

Condition distribution

Share of 282 NBI-tracked bridges by lowest applicable component rating.

Good
42.9% (121)
Fair
48.2% (136)
Poor
8.9% (25)

Acadia County's Poor-condition bridges carry 22,906 vehicle crossings a day

That is 2% of the county's reported daily bridge traffic on 8.9% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 916 crossings a day against 2,440 for a Good-condition one. A Poor rating is a condition category, not a closure or a live safety judgement; it means the lowest applicable component rating is 4 or below.

Computed over the 282 of 282 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

48.9% of Acadia County's bridges have passed the 50-year mark

138 of the 282 bridges with a recorded construction year were built in 1974 or earlier. Age alone is not a defect: a well-maintained older bridge can rate Good, and 42.9% of this county's inventory does. Even so, this older cohort is the population from which future Poor ratings are drawn, which is why the age profile below matters alongside the condition split above.

Cutoff derives from the 2024 release year minus a 50-year design life. Source: FHWA National Bridge Inventory, 2024 release.

One structure carries 25.8% of the county's Poor-condition bridge traffic

LA0013 over CREEK, built 1960, carries 5,915 vehicles a day, the most of any Poor-rated structure here. The county's Poor-condition exposure is concentrated rather than evenly spread, so the 25-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 22,906 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Acadia County's bridges were built

282 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 1960s, when 85 of the county's bridges still in the inventory were built, which is 30.1% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year (1978) matches the Louisiana average (1982).

Source FHWA National Bridge Inventory (year built) As of 2024 NBI release

How Acadia County compares with Louisiana's closest counties by inventory size

The 5 Louisiana counties nearest Acadia County in number of bridges, with their condition splits. Its 8.9% Poor share is the 1st-lowest of these 6. Its average build year of 1978 against a peer-group mean of 1982 is in line with the group.

Showing the 5 closest of 63 Louisiana counties eligible for comparison.

Bridge inventory size and condition shares for Acadia County and the 5 Louisiana counties closest to it in inventory size
County Bridges Poor
Natchitoches County 313 15.3%
Washington County 285 11.6%
Acadia County (this page) 282 8.9%
Bossier County 270 14.8%
Vermilion County 261 11.1%
Livingston County 253 9.5%

Each share is of that county's own total tracked bridges; peers are the counties with 5 or more bridges whose inventory size is closest to Acadia County's. Source: FHWA National Bridge Inventory, 2024 release.

Nationwide counties with similar inventory size or average build year

Two NBI-derived peer sets for Acadia County, both outside Louisiana so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside LA (282 bridges here).

Similar average build year

Nearest mean year-built outside LA (1978 here).

Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.

All bridges (282)

Casanova Rd

Fair

Over: COULEE

1 Mi. E. Of La 1109, Acadia, LA

Built 1999 Load: 7.5 t ADT: 48

Hazelwood Rd

Fair

Over: HAZELWOOD GULLY

0.9 MI W of LA 1105, Acadia, LA

Built 1999 Load: 9.1 t ADT: 4

Ferre Canal Rd.

Fair

Over: Coulee

0.6 Mi. W. of La 91, Acadia, LA

Built 1967 Load: 11.3 t ADT: 48

Perchville Rd.

Fair

Over: MALLET BAYOU

2.2 Mi W of La 367, Acadia, LA

Built 2001 Load: 11.8 t ADT: 240

Pointe Noir Rd

Fair

Over: PLAQUEMINE BRULE BAYOU

1.2 MI W of LA 35, Acadia, LA

Built 1986 Load: 12.0 t ADT: 240

Ohlenforst Rd.

Fair

Over: WICKOFF BAYOU

1.6 Mi S. of La 98, Acadia, LA

Built 1965 Load: 12.5 t ADT: 28

Vie Terre Beau Rd

Fair

Over: Nezpique Bayou

1.41 MI. WEST OF LA 1123, Acadia, LA

Built 2015 Load: 13.6 t ADT: 48

LA3116

Fair

Over: CREEK

1.7 MI WEST OF LA 13, Acadia, LA

Built 1953 Load: 14.7 t ADT: 600

Old Spanish Trail

Fair

Over: Coulee

0.5 Mi. E. of La 91, Acadia, LA

Built 1975 Load: 15.6 t ADT: 96

North Ave. D

Fair

Over: COULEE

1.2 Mi. N. of US 90, Acadia, LA

Built 1974 Load: 16.8 t ADT: 960

W. Northern Rd

Fair

Over: Crowley Drainage Ditch

1.4 Mi. W. of LA 13, Acadia, LA

Built 1982 Load: 17.5 t ADT: 2,880

LA0013

Fair

Over: LONG POINT GULLY

1.2 MI SOUTH OF LA 98, Acadia, LA

Built 1960 Load: 17.8 t ADT: 5,380

LA0100

Fair

Over: BAYOU PLAQUEMINE BRULE

.58 MI WEST OF LA 13, Acadia, LA

Built 1949 Load: 18.1 t ADT: 4,120

LA1108

Fair

Over: CREEK

0.44 Mi S of LA 358, Acadia, LA

Built 1983 Load: 18.1 t ADT: 335

Henry Rd.

Fair

Over: Simmons Gully

3.2 Mi W. of La 13, Acadia, LA

Built 1976 Load: 18.1 t ADT: 288

LA1120

Fair

Over: ANDRE COULEE

2.9 Mi. N of LA 100, Acadia, LA

Built 1974 Load: 18.5 t ADT: 801

LA0095

Fair

Over: BAYOU WYKOFF

0.7 MI W OF LA 356, Acadia, LA

Built 1963 Load: 18.8 t ADT: 5,275

Fournerat Rd

Fair

Over: Bayou Des Cannes

2.1 Mi. W. Of La 91, Acadia, LA

Built 1986 Load: 19.1 t ADT: 720

LA0365

Fair

Over: LONG POINT GULLY

0.5 MI W. of La 13, Acadia, LA

Built 1979 Load: 19.4 t ADT: 568

Sensat Cove Rd

Fair

Over: INTERSTATE 10

0.4 Mi S of LA 91, Acadia, LA

Built 1961 Load: 20.0 t ADT: 1,953

LA3070

Fair

Over: CREEK

5.22 MI NORTH OF LA 100, Acadia, LA

Built 1963 Load: 20.0 t ADT: 956

Dailey Rd

Fair

Over: Canal

0.6 Mi. S. of I10, Acadia, LA

Built 1981 Load: 20.1 t ADT: 288

Carrera Ln

Fair

Over: COULEE

0.01 MI NORTH OF LA 3123, Acadia, LA

Built 1976 Load: 20.4 t ADT: 240

LA0098

Fair

Over: B WYCOFF

1.1 MI EAST OF LA 367, Acadia, LA

Built 1954 Load: 20.9 t ADT: 3,881

LA0100

Fair

Over: CREEK

1.21 MI EAST OF LA 97, Acadia, LA

Built 1951 Load: 20.9 t ADT: 1,128

RIVERSIDE RD

Fair

Over: I0010

1.9 MI EAST OF LA 97, Acadia, LA

Built 1961 Load: 20.9 t ADT: 412

LA0095

Fair

Over: BAYOU MALLET

0.1 MI NORTH OF LA 358, Acadia, LA

Built 1958 Load: 21.4 t ADT: 1,370

LA0013

Fair

Over: QUEUE DE TORTUE BAYOU

1.0 MI SOUTH OF LA 1115, Acadia, LA

Built 1952 Load: 21.8 t ADT: 4,668

LA0098

Fair

Over: CREEK

0.21 MI EAST OF LA 1120, Acadia, LA

Built 1950 Load: 21.8 t ADT: 773

LA0100

Fair

Over: B DES CANNES EVNG

1.5 Mi. E. of LA 97, Acadia, LA

Built 1951 Load: 21.8 t ADT: 1,128

LA0365

Fair

Over: BAYOU PLAQUEMINE

2.1 MI EAST OF LA 367, Acadia, LA

Built 1952 Load: 21.8 t ADT: 1,570

LA0365

Fair

Over: LONG POINT GULLEY

0.3 MI WEST OF LA 1109, Acadia, LA

Built 1963 Load: 22.4 t ADT: 1,570

LA0013

Fair

Over: CREEK

1.8 Mi N of La 370, Acadia, LA

Built 1962 Load: 22.7 t ADT: 5,613

LA0013

Fair

Over: BAYOU MALLET

.6 MI. SOUTH OF LA 3116, Acadia, LA

Built 1960 Load: 22.7 t ADT: 5,613

LA0035

Fair

Over: BAYOU WIKOFF

2.3 MI NORTH OF LA 98, Acadia, LA

Built 1965 Load: 22.7 t ADT: 4,777

LA0368

Fair

Over: B DES CANNES

1.59 MI EAST OF LA 97, Acadia, LA

Built 1954 Load: 22.7 t ADT: 598

LA0098

Fair

Over: CREEK

2.81 MI WEST OF LA 97, Acadia, LA

Built 1963 Load: 23.6 t ADT: 1,790

LA0365

Fair

Over: BAYOU WYKOFF

1.6 MI EAST OF LA 1101, Acadia, LA

Built 1959 Load: 23.6 t ADT: 1,042

LA0092

Fair

Over: CREEK

1.3 MI. North of LA 1119, Acadia, LA

Built 1962 Load: 23.6 t ADT: 462

LA0095

Fair

Over: BAYOU WYKOFF

0.6 MI NORTH OF LA 365, Acadia, LA

Built 1963 Load: 23.6 t ADT: 5,275

LA0091

Fair

Over: RICHARDS GULLY

2.5 Miles North of LA 368, Acadia, LA

Built 1961 Load: 23.6 t ADT: 1,617

LA0092

Fair

Over: LAZY POINT CANAL

3.6 MI E OF LA 1119, Acadia, LA

Built 1962 Load: 24.5 t ADT: 444

LA0367

Fair

Over: BAYOU PLAQUEMINE BRULE

1.6 MI NORTH OF LA 1113, Acadia, LA

Built 1962 Load: 24.5 t ADT: 2,465

LA0368

Fair

Over: BAYOU MALLET

0.28 MI EAST OF LA 755, Acadia, LA

Built 1962 Load: 24.5 t ADT: 398

LA0013

Fair

Over: CREEK

1.1 MI NORTH OF US 90, Acadia, LA

Built 1957 Load: 24.6 t ADT: 8,810

LA1120

Fair

Over: CANAL

6.1 miles North of I-10., Acadia, LA

Built 1974 Load: 24.6 t ADT: 801

LA0013

Fair

Over: LIONS PT GULLEY

.6 MI NORTH OF LA 92, Acadia, LA

Built 1951 Load: 25.4 t ADT: 6,068

LA0098

Fair

Over: CREEK

.1 MI EAST OF LA 91, Acadia, LA

Built 1950 Load: 25.4 t ADT: 729

LA0091

Fair

Over: LAZY POINT CANAL

1.6 MI NORTH OF LA 92, Acadia, LA

Built 1951 Load: 25.4 t ADT: 1,947

Caffey Rd.

Fair

Over: I-10

1.1 MI EAST OF LA 1111, Acadia, LA

Built 1966 Load: 25.4 t ADT: 4,212
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.