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)

LA3067

Good

Over: CREEK

1.47 MI WEST OF LA 91, Acadia, LA

Built 1964 Load: 22.4 t ADT: 448

LA0095

Good

Over: DRAIN

1.55 MI NORTH OF LA 35, Acadia, LA

Built 1939 Load: 22.7 t ADT: 1,664

LA0095

Good

Over: DRAIN

0.85 MI NORTH OF LA 35, Acadia, LA

Built 1949 Load: 23.3 t ADT: 1,664

LA0368

Good

Over: CREEK

0.3 MI SE OF LA 755, Acadia, LA

Built 1962 Load: 23.6 t ADT: 394

Sonnier Rd.

Good

Over: CREEK

1.8 MI. WEST OF LA 95, Acadia, LA

Built 2012 Load: 23.7 t ADT: 48

Perchville Rd

Good

Over: MALLET BAYOU

2.0 Mi W of La 367, Acadia, LA

Built 2012 Load: 23.7 t ADT: 528

Perchville Rd

Good

Over: MALLET BAYOU

2.1 Mi W of La 367, Acadia, LA

Built 1999 Load: 23.7 t ADT: 528

Faulk Rd.

Good

Over: LYONS POINT GULLY

0.18 MI. E. OF LA 13, Acadia, LA

Built 2012 Load: 24.6 t ADT: 384

Fournerat Rd.

Good

Over: Richards Gully

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

Built 2012 Load: 24.6 t ADT: 1,296

Stakes Rd.

Good

Over: DE SAULE COULEE

0.8 Mi. E. of La 3070, Acadia, LA

Built 1999 Load: 24.6 t ADT: 24

S. Leblanc St.

Good

Over: COULEE

0.7 MILES EAST OF LA 1115, Acadia, LA

Built 2001 Load: 25.3 t ADT: 480

Mark Twain Rd.

Good

Over: LYONS POINT GULLY

1.2 MILES WEST OF LA 3007, Acadia, LA

Built 2001 Load: 25.3 t ADT: 100

Lafosse Rd

Good

Over: Coulee

0.3 Mi S. of La 92, Acadia, LA

Built 2001 Load: 25.3 t ADT: 96

Clement Rd.

Good

Over: Coulee

0.2 Mi W. Of La 91, Acadia, LA

Built 2001 Load: 25.3 t ADT: 576

Howard Rd.

Good

Over: Pointe Aux Loups Bayou

0.2 Mi. S. of La 98, Acadia, LA

Built 1999 Load: 25.3 t ADT: 144

Schultz Rd.

Good

Over: COLE GULLY

1.9 miles East of HWY 13, Acadia, LA

Built 2001 Load: 25.3 t ADT: 144

Schultz Rd.

Good

Over: GRANDE COULEE

0.02 MI E OF LA 13, Acadia, LA

Built 2001 Load: 25.3 t ADT: 240

Ed Thibodeaux Rd.

Good

Over: WICKOFF BAYOU

1.25 Mi W of La 95, Acadia, LA

Built 2001 Load: 25.3 t ADT: 960

Allie Young Rd

Good

Over: Barwick Bayou

0.6 MI E of LA 97, Acadia, LA

Built 1999 Load: 25.3 t ADT: 288

LA0013

Good

Over: GRAND COULEE

.1 MI NORTH OF LA 368, Acadia, LA

Built 1960 Load: 26.6 t ADT: 5,027

LA3007

Good

Over: Lyons Point Gully

3 MI East OF LA 13, Acadia, LA

Built 1957 Load: 27.9 t ADT: 575

LA0370

Good

Over: CREEK

0.65 MI EAST OF LA 91, Acadia, LA

Built 1971 Load: 28.8 t ADT: 568

Fabacher Rd.

Good

Over: Bayou Pointe Aux Loups

0.3 MI W of LA 91, Acadia, LA

Built 2014 Load: 29.8 t ADT: 480

LA0098

Good

Over: I-10

2.13 MI NE of LA 35, Acadia, LA

Built 1965 Load: 29.9 t ADT: 3,050

LA0013

Good

Over: BAYOU PLAQUEMINE

0.9 MILES NORTH OF I-10, Acadia, LA

Built 2008 Load: 31.1 t ADT: 9,371

Wagon Rd.

Good

Over: GRAND COULEE

0.5 MI E of Pamela Drive, Acadia, LA

Built 1986 Load: 31.8 t ADT: 8

LA1115

Good

Over: CREEK

0.52 MI EAST OF LA 91, Acadia, LA

Built 2014 Load: 32.4 t ADT: 377

Lafosse Rd.

Good

Over: Drain

1.33 MI E. OF LA 92, Acadia, LA

Built 2012 Load: 32.4 t ADT: 48

LA0013

Good

Over: CREEK

4.7 MI N of LA 1121, Acadia, LA

Built 1960 Load: 32.4 t ADT: 5,380

LA0097

Good

Over: CREEK

0.1 MI SOUTH OF LA 3068, Acadia, LA

Built 1956 Load: 32.4 t ADT: 1,175

LA0091

Good

Over: CREEK

1.4MI SOUTH OF LA 1115, Acadia, LA

Built 1950 Load: 32.4 t ADT: 1,947

LA0091

Good

Over: CREEK

.1MI SOUTH OF LA 1115, Acadia, LA

Built 1950 Load: 32.4 t ADT: 1,947

LA0091

Good

Over: FEERE CANAL

.3 MI NORTH OF LA 1115, Acadia, LA

Built 1950 Load: 32.4 t ADT: 1,947

LA0365

Good

Over: COLES GULLY

1.0 MI WEST OF LA 1109, Acadia, LA

Built 1963 Load: 32.4 t ADT: 1,570

LA0092

Good

Over: CANAL

.8 MI EAST OF LA 1124, Acadia, LA

Built 1975 Load: 32.4 t ADT: 1,274

LA0367

Good

Over: CREEK

0.6 MI NOIRTH OF LA 1110, Acadia, LA

Built 1961 Load: 32.4 t ADT: 2,465

LA0367

Good

Over: CREEK

0.9 MI NOIRTH OF LA 1110, Acadia, LA

Built 1961 Load: 32.4 t ADT: 2,465

LA0367

Good

Over: CREEK

1.4 MI NOIRTH OF LA 1110, Acadia, LA

Built 1961 Load: 32.4 t ADT: 2,465

LA0367

Good

Over: CREEK

1.7 MI NOIRTH OF LA 1110, Acadia, LA

Built 1961 Load: 32.4 t ADT: 2,465

LA1105

Good

Over: DRAINAGE CANAL

0.5 MI EAST OF LA 367, Acadia, LA

Built 1975 Load: 32.4 t ADT: 185

LA1105

Good

Over: DRAINAGE CANAL

2.0 MI EAST OF LA 367, Acadia, LA

Built 1975 Load: 32.4 t ADT: 185

LA1100

Good

Over: CANAL

1.2 MI NORTH OF LA 98, Acadia, LA

Built 1976 Load: 32.4 t ADT: 198

LA0095

Good

Over: CANAL

0.4 MI NORTH OF LA 1097, Acadia, LA

Built 1995 Load: 32.4 t ADT: 5,112

LA0098

Good

Over: CREEK

0.2 MI E of LA 95, Acadia, LA

Built 1962 Load: 32.4 t ADT: 3,050

LA0095

Good

Over: CANAL

0.4 MI WEST OF LA 1108, Acadia, LA

Built 1993 Load: 32.4 t ADT: 1,014

I0010

Good

Over: DRAIN

6.0 MI EAST OF LA 97, Acadia, LA

Built 1961 Load: 32.4 t ADT: 36,670

I0010

Good

Over: DRAIN

.3 MI EAST OF I-10, Acadia, LA

Built 1966 Load: 32.4 t ADT: 66,003

LA1120

Good

Over: CANAL

1.81 MI NORTH OF LA 91, Acadia, LA

Built 1974 Load: 32.4 t ADT: 801

LA1115

Good

Over: CREEK

7.53 MI EAST OF LA 91, Acadia, LA

Built 1960 Load: 32.4 t ADT: 377

LA1097

Good

Over: Coulle Duralde

1.92 MI EAST OF LA 98, Acadia, LA

Built 1998 Load: 32.4 t ADT: 437
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.