US Bridges

County Road 664 over Mill Creek - Polk Co.

FairPosted for load

Polk County, Arkansas · 1.76 NE SH 370 · Structure no. 000000000016244

Built
1945
80 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
64 ft
4 main spans
Daily traffic
20
2018 count
Owner
County
County Highway Agency

About this bridge

County Road 664 over Mill Creek - Polk Co. is a wood or timber stringer/multi-beam or girder carrying County Road 664 over Mill Creek - Polk Co. in Polk County, Arkansas. It was built in 1945, so it is 80 years old, older than the Arkansas average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 20 vehicles a day, roughly 1% of them trucks, projected to reach 41 by 2007. The structure is 64 ft (19.5 m) long and 12 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesCounty Road 664
CrossesMill Creek - Polk Co.
Location1.76 NE SH 370
RouteCounty Highway 664
CountyPolk County
StateArkansas
Coordinates34.5566, -94.00979
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2024
Inspection intervalevery 12 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating8 US tons
Inventory rating6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans4
Design loadH 10
Structure length64 ft (19.5 m)
Longest span16 ft (4.9 m)
Deck width12 ft (3.7 m)
Roadway width12 ft (3.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2018)
Projected traffic41 by 2007
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 664 over Mill Creek - Polk Co. built?

It was built in 1945, making it 80 years old in 2025.

What condition is County Road 664 over Mill Creek - Polk Co. in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2024.

How much traffic does County Road 664 over Mill Creek - Polk Co. carry?

About 20 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is County Road 664 over Mill Creek - Polk Co.?

The structure is 64 ft (19.5 m) long with a longest span of 16 ft (4.9 m) and a deck 12 ft wide.

Who owns County Road 664 over Mill Creek - Polk Co.?

It is owned by the County Highway Agency.