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.

When Lonoke County's bridges were built

187 bridges with a recorded construction year, grouped by decade

bridges

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).

Source FHWA National Bridge Inventory (year built) As of 2024 NBI release

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 Poor
Montgomery County 199 2%
Scott County 198 6.6%
Poinsett County 194 16%
Pope County 188 1.1%
Lonoke County (this page) 187 4.8%
Independence County 184 8.7%

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).

Similar average build year

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

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

Fair-condition bridges (74)

CR 348/Grayhawk Rd

Fair

Over: Two Prairie Bayou

1.5 Mi N of SH 5, Lonoke, AR

Built 2006 Load: 29.9 t ADT: 4,000

Hamilton Log 7.04

Fair

Over: BAYOU METO

.7 MI E OF SH 13, Lonoke, AR

Built 1979 Load: 30.8 t ADT: 170

SH 15 Log 0.36

Fair

Over: BAYOU METO

0.36 MI N OF US 70, Lonoke, AR

Built 1972 Load: 31.8 t ADT: 1,200

US 67 SB Log 5.58

Fair

Over: FOUR MILE CREEK

5.58 MI NE PULASKI CO LIN, Lonoke, AR

Built 1966 Load: 31.8 t ADT: 17,000

US 67 NB Log 5.59

Fair

Over: FOUR MILE CREEK

5.59 MI NE PULASKI CO LI, Lonoke, AR

Built 1966 Load: 31.8 t ADT: 17,000

US 165 log 1.18

Fair

Over: DENNIS SLOUGH

1.18 W OF PRAIRIE CL, Lonoke, AR

Built 1949 Load: 32.7 t ADT: 3,700

SH 232 Log 7.01

Fair

Over: BIG DITCH

.25 MI W JCT SH 13, Lonoke, AR

Built 1960 Load: 32.7 t ADT: 220

CR 61- Kerr Road

Fair

Over: BAYOU METO

2 M No I-40, Lonoke, AR

Built 1981 Load: 32.7 t ADT: 1,800

CR 86-F Mt. Spring

Fair

Over: FOUR MILE CREEK

.18 MI E SH 5, Lonoke, AR

Built 1985 Load: 32.7 t ADT: 34

CR71-Graham Rd.

Fair

Over: TWO PRAIRIE BAYOU

3.1 MI WEST SH 89, Lonoke, AR

Built 1987 Load: 32.7 t ADT: 1,521

SH 5 Log 4.72

Fair

Over: FOUR MILE CREEK

2.5 MI N OF JCT SH 5 & 89, Lonoke, AR

Built 1968 Load: 32.7 t ADT: 17,000

SH 5 Log 6.39

Fair

Over: MAGNESS CREEK

4.0 MI N OF JCT SH 5 & 89, Lonoke, AR

Built 1968 Load: 32.7 t ADT: 17,000

SH 5 Log 8.98

Fair

Over: CYPRESS BAYOU

1.0 MI N OF JCT SH 319, Lonoke, AR

Built 1968 Load: 32.7 t ADT: 5,425

SH 5 Log 0.14

Fair

Over: US 67-SEC 11Log 0.71

SH 5 AT US 67, Lonoke, AR

Built 1971 Load: 32.7 t ADT: 16,000

SH 89 Log 18.51

Fair

Over: US 67 SEC 11 log 3.48

JCT SH 89 & US 67, Lonoke, AR

Built 1971 Load: 32.7 t ADT: 21,000

SH 31Log 1.33

Fair

Over: BAYOU TWO PRAIRIE

0.3 MI SO OF I-40, Lonoke, AR

Built 1974 Load: 32.7 t ADT: 9,100

US 67 SB Log 2.15

Fair

Over: TWO PRAIRIE BAYOU

2.15 MI NE PULASKI CO LIN, Lonoke, AR

Built 1966 Load: 32.7 t ADT: 19,000

US 67 SB Log 10.09

Fair

Over: CYPRESS CREEK

0.03 MI SO WHITE CO LINE, Lonoke, AR

Built 1966 Load: 32.7 t ADT: 15,000

US 67 SB Log 9.99

Fair

Over: CYPRESS CREEK RELIEF

0.75 MI NE OF SH 319, Lonoke, AR

Built 1969 Load: 32.7 t ADT: 15,000

US 67 NB Log 2.15

Fair

Over: TWO PRAIRIE BAYOU

2.15 MI NE PULASKI CO LI, Lonoke, AR

Built 1966 Load: 32.7 t ADT: 19,000

US 67 NB Log 7.78

Fair

Over: FOUR MILE CREEK

7.78 MI NE PULASKI CO LI, Lonoke, AR

Built 1966 Load: 32.7 t ADT: 16,001

US 67 NB Log 10.10

Fair

Over: CYPRESS CREEK

0.03 MI SO WHITE CO LINE, Lonoke, AR

Built 1966 Load: 32.7 t ADT: 15,000

US 67 NB Log 9.99

Fair

Over: CYPRESS CREEK RELIEF

0.75 MI NE OF SH 319, Lonoke, AR

Built 1966 Load: 32.7 t ADT: 15,000

SH 381 log 3.48

Fair

Over: SKINNERS BRANCH

3.5 MI S OF SH 70, Lonoke, AR

Built 1968 Load: 32.7 t ADT: 530
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.