Total bridges
88
Public highway bridges in West Carroll County
County profile · official public datasets
West Carroll County, LA
88 public highway bridges tracked in the FHWA National Bridge Inventory: 23.9% rated Good, 69.3% Fair, 6.8% Poor.
- 88
- Public bridges
- 23.9%
- Good condition
- 6.8%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
West Carroll County posts a top-quartile lowest Poor-condition share among rated counties in the state across rated county bridge inventory.
- Top 22%
- lowest Poor share in state
- 6.8%
- Poor-condition share
- 88
- public highway bridges
- 1982
- 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.
West Carroll County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, West Carroll County ranks #14 of 64 Louisiana counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 6.8%). West Carroll County, Louisiana contains 88 public highway bridges. Roughly 23.9% are rated “Good,” 69.3% “Fair,” and 6.8% “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
23.9%
21 of 88 rated 7-9
Fair condition
69.3%
61 of 88 rated 5-6
Poor condition
6.8%
6 of 88 rated 4 or below
In-state Poor-share rank
#14 of 64
Among Louisiana counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 88 NBI-tracked bridges by lowest applicable component rating.
Good 23.9% (21)
Fair 69.3% (61)
Poor 6.8% (6)
West Carroll County's Poor-condition bridges carry 4,317 vehicle crossings a day
That is 7.7% of the county's reported daily bridge traffic on 6.8% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 720 crossings a day against 497 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 88 of 88 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
23.9% of West Carroll County's bridges have passed the 50-year mark
21 of the 88 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 23.9% 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 63.1% of the county's Poor-condition bridge traffic
LA0002 over COLEWA CREEK, built 1953, carries 2,725 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 6-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 4,317 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When West Carroll County's bridges were built
88 bridges with a recorded construction year, grouped by decade
- 1920s 3
1920–1929
3 bridges
- 1930s 2
1930–1939
2 bridges
- 1940s 1
1940–1949
1 bridges
- 1950s 10
1950–1959
10 bridges
- 1960s 4
1960–1969
4 bridges
- 1970s
1970–1979
13 bridges
- 1980s
1980–1989
26 bridges
- 1990s
1990–1999
13 bridges
- 2000s 4
2000–2009
4 bridges
- 2010s 10
2010–2019
10 bridges
- 2020s 2
2020–2029
2 bridges
What this shows Construction peaked in the 1980s, when 26 of the county's bridges still in the inventory were built, which is 29.5% of those with a recorded year. That cohort is now 35 to 44 years old in the 2024 inventory. Its average build year (1982) matches the Louisiana average (1982).
How West Carroll County compares with Louisiana's closest counties by inventory size
The 5 Louisiana counties nearest West Carroll County in number of bridges, with their condition splits. Its 6.8% Poor share is the 3rd-lowest of these 6. Its average build year of 1982 against a peer-group mean of 1977 is 5 years newer.
Showing the 5 closest of 63 Louisiana counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Madison County | 104 | 16.3% | 76.9% | 6.7% | 1974 |
| West Carroll County (this page) | 88 | 23.9% | 69.3% | 6.8% | 1982 |
| St. Charles County | 82 | 59.8% | 39% | 1.2% | 1981 |
| Iberville County | 80 | 33.8% | 51.3% | 15% | 1975 |
| West Baton Rouge County | 73 | 32.9% | 52.1% | 15.1% | 1969 |
| Catahoula County | 70 | 45.7% | 45.7% | 8.6% | 1984 |
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 West Carroll 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 West Carroll County, both outside Louisiana so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside LA (88 bridges here).
- Chicot County, AR · 88 bridges
- Prairie County, AR · 88 bridges
- Grand County, CO · 88 bridges
- Spalding County, GA · 88 bridges
Similar average build year
Nearest mean year-built outside LA (1982 here).
- Oklahoma County, OK · avg 1982 · 1,216 bridges
- Jackson County, MO · avg 1982 · 930 bridges
- Milwaukee County, WI · avg 1982 · 893 bridges
- Champaign County, IL · avg 1982 · 727 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
All bridges (88)
Bible Rd
FairOver: COLEWA BAYOU
1.1 MI S of LA 585, West Carroll, LA
Built 2003 Load: 49.2 t ADT: 88
Crowe Rd
FairOver: LYON BAYOU
WEST CARROLL PARISH, West Carroll, LA
Built 1990 Load: 49.9 t ADT: 112
LA0585
FairOver: BAYOU
0.1 MI N of LA 587, West Carroll, LA
Built 1986 Load: 58.1 t ADT: 584
LA0585
FairOver: CANAL
7.27 MI E of LA 586, West Carroll, LA
Built 1986 Load: 58.1 t ADT: 584
Hale Rd
FairOver: ALLIGATOR BAYOU
2 MI. W. OF LA 577, West Carroll, LA
Built 1996 Load: 62.2 t ADT: 120
LA0589
FairOver: INDIAN LAKE
1.52 MI E of LA 582, West Carroll, LA
Built 1981 Load: 62.9 t ADT: 528
Hill Church Rd
FairOver: TIGER BAYOU
0.6 MILES WEST OF LA 17, West Carroll, LA
Built 1999 Load: 74.5 t ADT: 160
LA0589
FairOver: DEER LAKE
1.97 MI W of LA 17, West Carroll, LA
Built 1981 Load: 74.5 t ADT: 528
LA0588
FairOver: BLADE BAYOU
0.92 MI W of LA 17, West Carroll, LA
Built 1983 Load: 74.5 t ADT: 345
LA0588
FairOver: HURRICANE CREEK
1.57 MI W of LA 17, West Carroll, LA
Built 1983 Load: 74.5 t ADT: 345
Beebe Rd
FairOver: LITTLE COLEWA BAYOU
0.1 MI N of LA 2, West Carroll, LA
Built 1991 Load: 74.5 t ADT: 80
Janesville Rd
GoodOver: TIGER BAYOU
0.7 MI S of LA 586, West Carroll, LA
Built 2000 Load: 30.5 t ADT: 320
LA0577
GoodOver: CREEK
2.1 MILES EAST OF LA 585, West Carroll, LA
Built 2014 Load: 32.4 t ADT: 365
LA0577
GoodOver: CREEK
1.4 MILES EAST OF LA 585, West Carroll, LA
Built 2014 Load: 32.4 t ADT: 365
Skinner Ln
GoodOver: LYON BAYOU
2.0 MI S OF LA 2, West Carroll, LA
Built 2016 Load: 32.4 t ADT: 952
Odis Wade Rd
GoodOver: LYON BAYOU
2.0 MI NE OF LA 589, West Carroll, LA
Built 2016 Load: 32.4 t ADT: 384
Mitchiner Rd
GoodOver: DRAIN TO LITTLE CREEK
0.1 MILES WEST OF LA 17, West Carroll, LA
Built 2014 Load: 32.4 t ADT: 248
LA0002
GoodOver: CREEK
2.6 MI EAST OF LA 585, West Carroll, LA
Built 1932 Load: 32.4 t ADT: 2,485
Chop Rd
GoodOver: DRAIN TO TIGER BAYOU
.4 MI N HWY 17 AT TERRY, West Carroll, LA
Built 1986 Load: 32.4 t ADT: 176
Lingo Lp
GoodOver: LYON BAYOU
.25 MILES EAST OF LA 589, West Carroll, LA
Built 2010 Load: 34.3 t ADT: 16
Rye Ln
GoodOver: ALLIGATOR BAYOU
0.4 MI E of LA 588, West Carroll, LA
Built 2008 Load: 37.6 t ADT: 26
LA0582
GoodOver: MILL BAYOU
2.6 MI E of LA 17, West Carroll, LA
Built 1983 Load: 39.0 t ADT: 593
LA0582
GoodOver: LYON BAYOU
0.4 MI E of LA 17, West Carroll, LA
Built 1983 Load: 40.8 t ADT: 384
LA0587
GoodOver: BAYOU
.8 MI WEST OF LA 878, West Carroll, LA
Built 1985 Load: 40.8 t ADT: 565
LA0587
GoodOver: DRAIN
.3 MI EAST OF LA 878, West Carroll, LA
Built 1985 Load: 40.8 t ADT: 565
LA0587
GoodOver: DRAIN
.9 MI EAST OF LA 878, West Carroll, LA
Built 1985 Load: 40.8 t ADT: 565
LA0134
GoodOver: BAYOU
7.15 MI E RICHLAND PAR LN, West Carroll, LA
Built 1991 Load: 42.6 t ADT: 759
Roundhill Rd.
GoodOver: Little Colewa Bayou
0.3 Mi. W. of LA 2, West Carroll, LA
Built 2022 Load: 44.1 t ADT: 400
GUNTER LOOP
GoodOver: DRAIN
0.90 MI. N. OF LA 2, West Carroll, LA
Built 2019 Load: 46.3 t ADT: 75
Mitchner Rd
GoodOver: Little Creek
1.7 Mi. W. of LA 17, West Carroll, LA
Built 2019 Load: 46.3 t ADT: 300
Roundhill Rd
GoodOver: DRAIN TO COLEWA BAYOU
3.1 MILES EAST OF LA 585, West Carroll, LA
Built 2014 Load: 46.3 t ADT: 704
LA 835
GoodOver: Boeuf River
0.34 Mi W of LA 585, West Carroll, LA
Built 2023 Load: 55.7 t ADT: 200
LA0589
PoorOver: ALLIGATOR BAYOU
.6 MI EAST OF LA 17, West Carroll, LA
Built 1957 Load: 11.7 t ADT: 233
LA0582
PoorOver: CREEK
2.5 MI SOUTH OF LA 2, West Carroll, LA
Built 1956 Load: 13.0 t ADT: 355
LA0586
PoorOver: TIGER BAYOU
4.3 MI EAST OF LA 583, West Carroll, LA
Built 1959 Load: 13.6 t ADT: 242
LA0002
PoorOver: COLEWA CREEK
4.0 MI EAST OF LA 585, West Carroll, LA
Built 1953 Load: 17.8 t ADT: 2,725
LA0585
PoorOver: CREEK
.9 MI WEST OF LA 577, West Carroll, LA
Built 1948 Load: 18.1 t ADT: 422
LA0588
PoorOver: BOGGY BAYOU
2.59 MI W of LA 17, West Carroll, LA
Built 1983 Load: 74.5 t ADT: 340
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.