County profile · official public datasets

Logan County, AR

152 public highway bridges tracked in the FHWA National Bridge Inventory: 19.1% rated Good, 72.4% Fair, 8.6% Poor.

152
Public bridges: 19.1%
Good condition: 8.6%
Poor condition

The verdict

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

Logan County pairs a higher-than-median Poor-condition share among rated counties in the state with an older average build year than the state inventory.

59th
of 75 on Poor share: 8.6%
Poor-condition share: 152
public highway bridges: 1961
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.

Logan County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Logan County ranks #59 of 75 Arkansas counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 8.6%). Logan County, Arkansas contains 152 public highway bridges. Roughly 19.1% are rated “Good,” 72.4% “Fair,” and 8.6% “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

152

Public highway bridges in Logan County

Good condition

19.1%

29 of 152 rated 7-9

Fair condition

72.4%

110 of 152 rated 5-6

Poor condition

8.6%

13 of 152 rated 4 or below

In-state Poor-share rank

#59 of 75

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

Condition distribution

Share of 152 NBI-tracked bridges by lowest applicable component rating.

Good

19.1% (29)

Fair

72.4% (110)

Poor

8.6% (13)

Logan County's Poor-condition bridges carry 20,721 vehicle crossings a day

That is 9.7% of the county's reported daily bridge traffic on 8.6% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 1,594 crossings a day against 931 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 152 of 152 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

66.4% of Logan County's bridges have passed the 50-year mark

101 of the 152 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 19.1% 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 33.8% of the county's Poor-condition bridge traffic

State Highway 22 over Short Mountain Creek, built 1928, carries 7,000 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 13-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 20,721 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1920s

24
1930s

19
1940s

14
1950s

3
1960s

26
1970s

32
1980s

12
1990s

12
2000s

6
2010s

4

What this shows Construction peaked in the 1970s, when 32 of the county's bridges still in the inventory were built, which is 21.1% of those with a recorded year. That cohort is now 45 to 54 years old in the 2024 inventory. Its average build year is 1961, 19 years older than the Arkansas average of 1980.

How Logan County compares with Arkansas's closest counties by inventory size

The 5 Arkansas counties nearest Logan County in number of bridges, with their condition splits. Its 8.6% Poor share is the 4th-lowest of these 6. Its average build year of 1961 against a peer-group mean of 1977 is 16 years older.

Showing the 5 closest of 74 Arkansas counties eligible for comparison.

Bridge inventory size and condition shares for Logan County and the 5 Arkansas counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Arkansas County	154	43.5%	53.9%	2.6%	1980
Logan County (this page)	152	19.1%	72.4%	8.6%	1961
Randolph County	151	39.1%	57.6%	3.3%	1976
Drew County	149	54.4%	41.6%	4%	1986
Madison County	149	22.1%	62.4%	15.4%	1978
Franklin County	143	25.2%	65.7%	9.1%	1965

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 Logan 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 Logan County, both outside Arkansas so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside AR (152 bridges here).

Kosciusko County, IN · 152 bridges
Muhlenberg County, KY · 152 bridges
Clinton County, MO · 152 bridges
Mineral County, MT · 152 bridges

Similar average build year

Nearest mean year-built outside AR (1961 here).

Westchester County, NY · avg 1961 · 774 bridges
Tehama County, CA · avg 1961 · 450 bridges
Berkshire County, MA · avg 1961 · 450 bridges
Schuylkill County, PA · avg 1961 · 368 bridges

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

All 152 Good 29 Fair 110 Poor 13

Fair-condition bridges (110)

Sort:

Logan County Bridge Snapshot

Condition distribution

Logan County's Poor-condition bridges carry 20,721 vehicle crossings a day

66.4% of Logan County's bridges have passed the 50-year mark

One structure carries 33.8% of the county's Poor-condition bridge traffic

How Logan County compares with Arkansas's closest counties by inventory size

Nationwide counties with similar inventory size or average build year

Similar inventory size

Similar average build year

Fair-condition bridges (110)

Richie Road

Old Military Road

SH 217-Logan Co.

Co. Rd. 49 Zone E

Helton Rd-Logan Co

State Highway 22

State Highway 109

SH 23-Logan Co.

Daniels Lane

CR 19-Logan Co.

Barber Rd-Logan Co

State Highway 22

SH 22-Logan Co.

State Highway 22

SH 22

State Highway 22

State Highway 23

State Highway 23

State Highway 197

Logan Hall Road

Old Military Rd

CR52/Spring LakeRd

State Highway 10

SH 197-Logan Co.

SH 109-Logan Co.

State Highway 109

SH 217-Logan Co.

SH 22-Logan Co.

SH 22-Logan Co.

Johnson Lane-Logan

State Highway 309

Coleman Road

State Highway 23

SH 23-Logan Co.

SH 10 - Logan Co.

SH 22-Logan Co.

State Highway 109

SH 23-Logan Co.

State Highway 23

State Highway 22

State Highway 22

State Highway 22

State Highway 10

SH 22-Logan Co.

SH 197-Logan Co.

SH 22-Logan Co.

SH 23-Logan Co.

State Highway 23

SH 217-Logan Co.

SH 109

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