US Bridges

SH-1/SEC-8/L-4.28 over Slough

Good

Phillips County, Arkansas · 4.28 MI No of JCT US 49 · Structure no. 0000000000X1478

Built
2017
8 years old
Condition
Good
inspected November 2023
Type
Culvert
Concrete
Length
43 ft
5 main spans
Daily traffic
3,294
2018 count
Owner
State
State Highway Agency

About this bridge

SH-1/SEC-8/L-4.28 over Slough is a concrete culvert carrying SH-1/SEC-8/L-4.28 over Slough in Phillips County, Arkansas. It was built in 2017, so it is 8 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 3,294 vehicles a day, roughly 18% of them trucks, projected to reach 4,300 by 2035. The structure is 43 ft (13 m) long. If it were closed, the detour would be 6.2 mi (10 km).

CarriesSH-1/SEC-8/L-4.28
CrossesSlough
Location4.28 MI No of JCT US 49
RouteState Highway 1
Coordinates34.61719, -90.76815
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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHL 93
Structure length43 ft (13 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,294 (2018)
Projected traffic4,300 by 2035
Trucks18%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH-1/SEC-8/L-4.28 over Slough built?

It was built in 2017, making it 8 years old in 2025.

What condition is SH-1/SEC-8/L-4.28 over Slough 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 November 2023.

How much traffic does SH-1/SEC-8/L-4.28 over Slough carry?

About 3,294 vehicles per day (2018 count), of which roughly 18% are trucks.

How long is SH-1/SEC-8/L-4.28 over Slough?

The structure is 43 ft (13 m) long with a longest span of 8 ft (2.4 m).

Who owns SH-1/SEC-8/L-4.28 over Slough?

It is owned by the State Highway Agency.