US Bridges

County Road 70 over Chances Creek-Polk Co.

PoorPosted for load

Polk County, Arkansas · 0.16 MI E US 71 · Structure no. 000000000018190

Built
1936
89 years old, rebuilt 1977
Condition
Poor
inspected March 2024
Type
Slab
Concrete
Length
25 ft
1 main span
Daily traffic
334
2018 count
Owner
County
County Highway Agency

About this bridge

County Road 70 over Chances Creek-Polk Co. is a concrete slab carrying County Road 70 over Chances Creek-Polk Co. in Polk County, Arkansas. It was built in 1936 and reconstructed in 1977, so it is 89 years old, older 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 334 vehicles a day, roughly 1% of them trucks, projected to reach 187 by 2007. The structure is 25 ft (7.6 m) long and 26 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCounty Road 70
CrossesChances Creek-Polk Co.
Location0.16 MI E US 71
RouteCounty Highway 70
CountyPolk County
StateArkansas
Coordinates34.65496, -94.1507
Functional classRural Major Collector

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
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating26 US tons
Inventory rating16 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 10
Structure length25 ft (7.6 m)
Longest span25 ft (7.6 m)
Deck width26 ft (7.9 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic334 (2018)
Projected traffic187 by 2007
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$206,000
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 70 over Chances Creek-Polk Co. built?

It was built in 1936, making it 89 years old in 2025. It was reconstructed in 1977.

What condition is County Road 70 over Chances 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 March 2024.

How much traffic does County Road 70 over Chances Creek-Polk Co. carry?

About 334 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is County Road 70 over Chances Creek-Polk Co.?

The structure is 25 ft (7.6 m) long with a longest span of 25 ft (7.6 m) and a deck 26 ft wide.

Who owns County Road 70 over Chances Creek-Polk Co.?

It is owned by the County Highway Agency.