US Bridges

SH 31 Log 9.71 over Ditch

Good

Lonoke County, Arkansas · .3 MI N S H 236 E · Structure no. 0000000000X0662

Built
1987
38 years old
Condition
Good
inspected December 2023
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
4,199
2018 count
Owner
State
State Highway Agency

About this bridge

SH 31 Log 9.71 over Ditch is a concrete culvert carrying SH 31 Log 9.71 over Ditch in Lonoke County, Arkansas. It was built in 1987, so it is 38 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,199 vehicles a day, roughly 1% of them trucks, projected to reach 5,110 by 2028. The structure is 32 ft (9.8 m) long and 50 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesSH 31 Log 9.71
CrossesDitch
Location.3 MI N S H 236 E
RouteState Highway 31
CountyLonoke County
StateArkansas
Coordinates34.91571, -91.87405
Functional classRural Minor Arterial

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 protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable 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 spans3
Design loadH 20
Structure length32 ft (9.8 m)
Longest span10 ft (3 m)
Deck width50 ft (15.2 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,199 (2018)
Projected traffic5,110 by 2028
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 9.71 over Ditch built?

It was built in 1987, making it 38 years old in 2025.

What condition is SH 31 Log 9.71 over Ditch 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 December 2023.

How much traffic does SH 31 Log 9.71 over Ditch carry?

About 4,199 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is SH 31 Log 9.71 over Ditch?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m) and a deck 50 ft wide.

Who owns SH 31 Log 9.71 over Ditch?

It is owned by the State Highway Agency.