US Bridges

County Road 630 over Cossatot River Polk Co.

GoodPosted for load

Polk County, Arkansas · 0.10 MI N. JCT CO RD 8 · Structure no. 000000000023886

Built
2016
9 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
30 ft
1 main span
Daily traffic
33
2018 count
Owner
County
County Highway Agency

About this bridge

County Road 630 over Cossatot River Polk Co. is a steel stringer/multi-beam or girder carrying County Road 630 over Cossatot River Polk Co. in Polk County, Arkansas. It was built in 2016, so it is 9 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.

It carries about 33 vehicles a day, roughly 1% of them trucks, projected to reach 30 by 2036. The structure is 30 ft (9.2 m) long and 13 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesCounty Road 630
CrossesCossatot River Polk Co.
Location0.10 MI N. JCT CO RD 8
RouteCounty Highway 630
CountyPolk County
StateArkansas
Coordinates34.46982, -94.15054
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
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 inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating31 US tons
Inventory rating19 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckSteel plate
Main spans1
Design loadUnknown
Structure length30 ft (9.2 m)
Longest span28 ft (8.5 m)
Deck width13 ft (4 m)
Roadway width12 ft (3.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33 (2018)
Projected traffic30 by 2036
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Road 630 over Cossatot River Polk Co. built?

It was built in 2016, making it 9 years old in 2025.

What condition is County Road 630 over Cossatot River Polk Co. 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 October 2024.

How much traffic does County Road 630 over Cossatot River Polk Co. carry?

About 33 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is County Road 630 over Cossatot River Polk Co.?

The structure is 30 ft (9.2 m) long with a longest span of 28 ft (8.5 m) and a deck 13 ft wide.

Who owns County Road 630 over Cossatot River Polk Co.?

It is owned by the County Highway Agency.