US Bridges

County Road 31 over Six Mile Creek - Polk CO

PoorPosted for load

Polk County, Arkansas · 5.69 MI N SH 246&CO RD31 · Structure no. 000000000021215

Built
1992
33 years old
Condition
Poor
inspected December 2023
Type
Other
Steel
Length
86 ft
1 main span
Daily traffic
901
2018 count
Owner
County
County Highway Agency

About this bridge

County Road 31 over Six Mile Creek - Polk CO is a steel other carrying County Road 31 over Six Mile Creek - Polk CO in Polk County, Arkansas. It was built in 1992, so it is 33 years old, younger than the Arkansas average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 901 vehicles a day, roughly 1% of them trucks, projected to reach 62 by 2007. The structure is 86 ft (26.2 m) long and 17 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCounty Road 31
CrossesSix Mile Creek - Polk CO
Location5.69 MI N SH 246&CO RD31
RouteCounty Highway 31
Coordinates34.46534, -94.3743
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating16 US tons
Inventory rating10 US tons

Structure

Structure typeOther
MaterialSteel
DeckSteel plate
Main spans1
Design loadUnknown
Structure length86 ft (26.2 m)
Longest span84 ft (25.6 m)
Deck width17 ft (5.2 m)
Roadway width16 ft (5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic901 (2018)
Projected traffic62 by 2007
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$294,000
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 31 over Six Mile Creek - Polk CO built?

It was built in 1992, making it 33 years old in 2025.

What condition is County Road 31 over Six Mile Creek - Polk CO in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2023.

How much traffic does County Road 31 over Six Mile Creek - Polk CO carry?

About 901 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is County Road 31 over Six Mile Creek - Polk CO?

The structure is 86 ft (26.2 m) long with a longest span of 84 ft (25.6 m) and a deck 17 ft wide.

Who owns County Road 31 over Six Mile Creek - Polk CO?

It is owned by the County Highway Agency.