County profile · official public datasets

Lonoke County, AR

187 public highway bridges tracked in the FHWA National Bridge Inventory: 55.6% rated Good, 39.6% Fair, 4.8% Poor.

187
Public bridges: 55.6%
Good condition: 4.8%
Poor condition

The verdict

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

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

Top 48%
lowest Poor share in state: 4.8%
Poor-condition share: 187
public highway bridges: 1981
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.

Lonoke County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Lonoke County ranks #36 of 75 Arkansas counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 4.8%). Lonoke County, Arkansas contains 187 public highway bridges. Roughly 55.6% are rated “Good,” 39.6% “Fair,” and 4.8% “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.

Total bridges

187

Public highway bridges in Lonoke County

Good condition

55.6%

104 of 187 rated 7-9

Fair condition

39.6%

74 of 187 rated 5-6

Poor condition

4.8%

9 of 187 rated 4 or below

In-state Poor-share rank

#36 of 75

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

Condition distribution

Share of 187 NBI-tracked bridges by lowest applicable component rating.

Good

55.6% (104)

Fair

39.6% (74)

Poor

4.8% (9)

Lonoke County's Poor-condition bridges carry 14,686 vehicle crossings a day

That is 1.3% of the county's reported daily bridge traffic on 4.8% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 1,632 crossings a day against 6,775 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 187 of 187 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

41.2% of Lonoke County's bridges have passed the 50-year mark

77 of the 187 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 55.6% 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 44.9% of the county's Poor-condition bridge traffic

SH 13-SEC 10 over I 40-SEC 41 LOG 182.51, built 1964, carries 6,600 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 9-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 14,686 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1930s

15
1940s

6
1950s

9
1960s

35
1970s

17
1980s

21
1990s

32
2000s

35
2010s

14
2020s

3

What this shows Construction peaked in the 1960s, when 35 of the county's bridges still in the inventory were built, which is 18.7% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year (1981) matches the Arkansas average (1980).

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

The 5 Arkansas counties nearest Lonoke County in number of bridges, with their condition splits. Its 4.8% Poor share is the 3rd-lowest of these 6. Its average build year of 1981 against a peer-group mean of 1976 is 5 years newer.

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

Bridge inventory size and condition shares for Lonoke County and the 5 Arkansas counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Montgomery County	199	40.2%	57.8%	2%	1975
Scott County	198	26.8%	66.7%	6.6%	1971
Poinsett County	194	41.8%	42.3%	16%	1982
Pope County	188	39.4%	59.6%	1.1%	1975
Lonoke County (this page)	187	55.6%	39.6%	4.8%	1981
Independence County	184	39.1%	52.2%	8.7%	1975

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

Similar inventory size

Nearest county inventories outside AR (187 bridges here).

Huntington County, IN · 187 bridges
Grundy County, MO · 187 bridges
Henry County, TN · 187 bridges
Chesapeake city County, VA · 187 bridges

Similar average build year

Nearest mean year-built outside AR (1981 here).

Franklin County, OH · avg 1981 · 922 bridges
Greenville County, SC · avg 1981 · 635 bridges
Montgomery County, OH · avg 1981 · 632 bridges
McLean County, IL · avg 1981 · 624 bridges

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

All 187 Good 104 Fair 74 Poor 9

All bridges (187)

Sort:

Lonoke County Bridge Snapshot

Condition distribution

Lonoke County's Poor-condition bridges carry 14,686 vehicle crossings a day

41.2% of Lonoke County's bridges have passed the 50-year mark

One structure carries 44.9% of the county's Poor-condition bridge traffic

How Lonoke 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

All bridges (187)

I-40 Log 177.81

SH 5 Log 1.16

SH 89 Log 20.06

SH 89 Log 20.61

I-40 Log 175.75

SH 31 Log 2.58

SH 13

CR 731DesLauriers

Hudson Branch Dr

SH 31 Log 0.42

SH 367 Log 0.50

US 165 Log 22.18

I-40 Log 185.46

SH 31 Log 9.71

SH 13 09/0 20.42

SH 367Log 0.44

SH 367 Log 0.99

S.H. 89 Log 8.39

SH 38

Kerr Station Rd

SH 5 Log 2.09 SB

SH 5 Log 2.09 NB

SH 15 Log 10.85

SH 367 Log 6.49

US 165 Log 3.99

SH 15 Log 6.83

SH 13 09/0 15.1

AR Hwy 38

SH 381Log 9.73

SH 381Log 8.88

W. 3rd St.

US 165 Log 2.44

US 165 Log 2.10

US 165 08 Log 0.03

CR23K Hamilton

CR89 F Haymes Rd

CR 83 E Cocklebur

South First Street

SH 319 Log 0.86

SH 31 Log 1.19

SH 381 Log 10.98

SH 31 Log 7.67

SH 31-3 Log 11.77

SH 31 Log 15.43

SH 13 10/0Log 6.76

SH 321Log 0.51

SH 321 Log 1.19

SH 321Log 1.29

U S 165 Log 13.30

US 165 Log 15.43

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