US Bridges

CR 20/ Keystone RD over Twomile/Tenmile CR Relf

Good

Lincoln County, Arkansas · 1.2 MI N Drewco-Crnrville · Structure no. 000000000004585

Built
1987
38 years old
Condition
Good
inspected August 2022
Type
Channel Beam
Concrete
Length
124 ft
4 main spans
Daily traffic
213
2018 count
Owner
County
County Highway Agency

About this bridge

CR 20/ Keystone RD over Twomile/Tenmile CR Relf is a concrete channel beam carrying CR 20/ Keystone RD over Twomile/Tenmile CR Relf in Lincoln 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 213 vehicles a day, roughly 1% of them trucks, projected to reach 137 by 2007. The structure is 124 ft (37.8 m) long and 27 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesCR 20/ Keystone RD
CrossesTwomile/Tenmile CR Relf
Location1.2 MI N Drewco-Crnrville
RouteCounty Highway 20
Coordinates33.80903, -91.90971
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length124 ft (37.8 m)
Longest span31 ft (9.4 m)
Deck width27 ft (8.2 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic213 (2018)
Projected traffic137 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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was CR 20/ Keystone RD over Twomile/Tenmile CR Relf built?

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

What condition is CR 20/ Keystone RD over Twomile/Tenmile CR Relf 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 August 2022.

How much traffic does CR 20/ Keystone RD over Twomile/Tenmile CR Relf carry?

About 213 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is CR 20/ Keystone RD over Twomile/Tenmile CR Relf?

The structure is 124 ft (37.8 m) long with a longest span of 31 ft (9.4 m) and a deck 27 ft wide.

Who owns CR 20/ Keystone RD over Twomile/Tenmile CR Relf?

It is owned by the County Highway Agency.