US Bridges

SH 31 Log 0.42 over Mile Branch

Good

Lonoke County, Arkansas · 3.5 MI So of US 165 · Structure no. 0000000000M0725

Built
1960
65 years old
Condition
Good
inspected November 2023
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
520
2018 count
Owner
State
State Highway Agency

About this bridge

SH 31 Log 0.42 over Mile Branch is a concrete culvert carrying SH 31 Log 0.42 over Mile Branch in Lonoke County, Arkansas. It was built in 1960, so it is 65 years old, older than the Arkansas average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 520 vehicles a day, roughly 1% of them trucks, projected to reach 552 by 2028. The structure is 23 ft (6.9 m) long and 38 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

CarriesSH 31 Log 0.42
CrossesMile Branch
Location3.5 MI So of US 165
RouteState Highway 31
Coordinates34.49223, -91.86643
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46 US tons
Inventory rating28 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 20
Structure length23 ft (6.9 m)
Longest span10 ft (3 m)
Deck width38 ft (11.6 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic520 (2018)
Projected traffic552 by 2028
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 31 Log 0.42 over Mile Branch built?

It was built in 1960, making it 65 years old in 2025.

What condition is SH 31 Log 0.42 over Mile Branch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2023.

How much traffic does SH 31 Log 0.42 over Mile Branch carry?

About 520 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is SH 31 Log 0.42 over Mile Branch?

The structure is 23 ft (6.9 m) long with a longest span of 10 ft (3 m) and a deck 38 ft wide.

Who owns SH 31 Log 0.42 over Mile Branch?

It is owned by the State Highway Agency.