Total bridges
282
Public highway bridges in Acadia County
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.
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
- 1930s 3
1930–1939
3 bridges
- 1940s 2
1940–1949
2 bridges
- 1950s 32
1950–1959
32 bridges
- 1960s
1960–1969
85 bridges
- 1970s
1970–1979
36 bridges
- 1980s 31
1980–1989
31 bridges
- 1990s
1990–1999
40 bridges
- 2000s 25
2000–2009
25 bridges
- 2010s 28
2010–2019
28 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).
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.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Natchitoches County | 313 | 46% | 38.7% | 15.3% | 1983 |
| Washington County | 285 | 44.2% | 44.2% | 11.6% | 1979 |
| Acadia County (this page) | 282 | 42.9% | 48.2% | 8.9% | 1978 |
| Bossier County | 270 | 30% | 55.2% | 14.8% | 1983 |
| Vermilion County | 261 | 45.6% | 43.3% | 11.1% | 1985 |
| Livingston County | 253 | 43.5% | 47% | 9.5% | 1978 |
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).
- Daviess County, KY · 282 bridges
- New Madrid County, MO · 282 bridges
- Bastrop County, TX · 282 bridges
- Forrest County, MS · 283 bridges
Similar average build year
Nearest mean year-built outside LA (1978 here).
- Orange County, CA · avg 1978 · 1,164 bridges
- Sumner County, KS · avg 1978 · 659 bridges
- Allen County, IN · avg 1978 · 613 bridges
- Livingston County, IL · avg 1978 · 579 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Poor-condition bridges (25)
Airport Rd
PoorOver: Coulee Triet
1.6 Mi. E. of La 1124, Acadia, LA
Built 1965 Load: 9.1 t ADT: 40
LA1123
PoorOver: CREEK
4.24 MI WEST OF LA 98, Acadia, LA
Built 1954 Load: 10.9 t ADT: 134
Chinaberry Dr.
PoorOver: COULEE
0.1 Mi. S. of La 91, Acadia, LA
Built 1974 Load: 10.9 t ADT: 48
LA3116
PoorOver: CREEK
0.2 mi N. of LA 3123, Acadia, LA
Built 1953 Load: 11.3 t ADT: 654
Redbird Rd.
PoorOver: Coulee
1.1 Mi. S. of Istre Rd, Acadia, LA
Built 1965 Load: 11.3 t ADT: 24
LA1123
PoorOver: CREEK
2.23 MI WEST OF LA 98, Acadia, LA
Built 1954 Load: 11.8 t ADT: 134
Istre Rd
PoorOver: Lazy Point Canal
1.1 Mi. W. of La 92, Acadia, LA
Built 1965 Load: 11.8 t ADT: 96
LA0091
PoorOver: B. PLAQ. BRULE/ESTHERWOO
1.2 MI N of US 90, Acadia, LA
Built 1975 Load: 12.0 t ADT: 1,617
Deer Park Rd
PoorOver: COULEE
0.6 Mi W. of La 98, Acadia, LA
Built 1998 Load: 14.5 t ADT: 48
Charlie Arceneaux
PoorOver: Wikoff Bayou
1.54 MI EAST OF LA 35, Acadia, LA
Built 2011 Load: 14.7 t ADT: 48
Nation Rd.
PoorOver: Duralde Coulee
0.6 Mi. S. of La 13, Acadia, LA
Built 1970 Load: 15.9 t ADT: 336
Benton Rd
PoorOver: Lyons Point Gully
0.1 Mi. S. of La 92, Acadia, LA
Built 1974 Load: 17.1 t ADT: 96
Roy Rd.
PoorOver: BLANC BAYOU
0.7 Mi. S. of US 90, Acadia, LA
Built 1965 Load: 18.1 t ADT: 28
Jacobs Ave.
PoorOver: COULEE
0.5 Mi. N. of US 90, Acadia, LA
Built 1980 Load: 20.1 t ADT: 336
LA0092
PoorOver: CANAL
2.5 MI East OF LA 13, Acadia, LA
Built 1973 Load: 20.1 t ADT: 352
LA3070
PoorOver: COULEE DE SAULE
3 MI NORTH OF LA 100, Acadia, LA
Built 1980 Load: 23.0 t ADT: 956
Elenor Rd.
PoorOver: Coulee
1.1 Mi. S. of US 90, Acadia, LA
Built 1970 Load: 23.8 t ADT: 576
LA0091
PoorOver: BAYOU JONAS
1.66 MI W of LA 1120, Acadia, LA
Built 1979 Load: 24.3 t ADT: 1,617
LA0098
PoorOver: CREEK
1.6 MI EAST OF LA 367, Acadia, LA
Built 1973 Load: 24.6 t ADT: 3,881
LA1110
PoorOver: Cole Gully
0.75 Mi N of LA 98, Acadia, LA
Built 1982 Load: 24.9 t ADT: 303
Sittig St.
PoorOver: COULEE
0.28 MI. EAST OF LA 755, Acadia, LA
Built 1990 Load: 29.0 t ADT: 2,016
Fir Ave.
PoorOver: Blanc Bayou
0.8 Mi. W. of LA 13, Acadia, LA
Built 1967 Load: 33.7 t ADT: 2,592
LA0095
PoorOver: DRAINAGE CANAL
2.88 MI NORTH OF LA 35, Acadia, LA
Built 1984 Load: 40.8 t ADT: 1,035
LA0013
PoorOver: CREEK
.01 MI SOUTH OF LA 365, Acadia, LA
Built 1960 Load: 74.5 t ADT: 5,915
Connie Rd.
PoorOver: COULEE
1.1 Mi. East of La 1120, Acadia, LA
Built 1986 Load: 74.5 t ADT: 24
Read our methodology - how this data is sourced, computed, and verified.
Related
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.