US Bridges

SH 18 Lm 20.35 over Little Slough Creek

Good

Craighead County, Arkansas · 0.2 Miles W of Black Oak · Structure no. 0000000000X1439

Built
2013
12 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
63 ft
5 main spans
Daily traffic
8,100
2018 count
Owner
State
State Highway Agency

About this bridge

SH 18 Lm 20.35 over Little Slough Creek is a concrete culvert carrying SH 18 Lm 20.35 over Little Slough Creek in Craighead County, Arkansas. It was built in 2013, so it is 12 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 8,100 vehicles a day, roughly 11% of them trucks, projected to reach 8,000 by 2030. The structure is 63 ft (19.3 m) long. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesSH 18 Lm 20.35
CrossesLittle Slough Creek
Location0.2 Miles W of Black Oak
RouteState Highway 18
CountyCraighead County
StateArkansas
Coordinates35.83981, -90.37258
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating35.1 US tons
Inventory rating21.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans5
Design loadHS 20
Structure length63 ft (19.3 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,100 (2018)
Projected traffic8,000 by 2030
Trucks11%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SH 18 Lm 20.35 over Little Slough Creek built?

It was built in 2013, making it 12 years old in 2025.

What condition is SH 18 Lm 20.35 over Little Slough Creek 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 September 2023.

How much traffic does SH 18 Lm 20.35 over Little Slough Creek carry?

About 8,100 vehicles per day (2018 count), of which roughly 11% are trucks.

How long is SH 18 Lm 20.35 over Little Slough Creek?

The structure is 63 ft (19.3 m) long with a longest span of 12 ft (3.7 m).

Who owns SH 18 Lm 20.35 over Little Slough Creek?

It is owned by the State Highway Agency.