US Bridges

HWY 412 Section 07 over Float Road Slough

Good

Lawrence County, Arkansas · 1.6 Mi. West Greene Co. · Structure no. 0000000000X1601

Built
2020
5 years old
Condition
Good
inspected February 2023
Type
Culvert
Concrete
Length
44 ft
4 main spans
Daily traffic
4,166
2018 count
Owner
State
State Highway Agency

About this bridge

HWY 412 Section 07 over Float Road Slough is a concrete culvert carrying HWY 412 Section 07 over Float Road Slough in Lawrence County, Arkansas. It was built in 2020, so it is 5 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,166 vehicles a day, roughly 22% of them trucks, projected to reach 4,600 by 2033. The structure is 44 ft (13.5 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesHWY 412 Section 07
CrossesFloat Road Slough
Location1.6 Mi. West Greene Co.
RouteU.S. Route 412
Coordinates36.07, -90.84621
Functional classUrban Other Principal Arterial

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 protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionFebruary 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating51 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4 (+4 approach)
Design loadHL 93
Structure length44 ft (13.5 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,166 (2018)
Projected traffic4,600 by 2033
Trucks22%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 HWY 412 Section 07 over Float Road Slough built?

It was built in 2020, making it 5 years old in 2025.

What condition is HWY 412 Section 07 over Float Road 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 February 2023.

How much traffic does HWY 412 Section 07 over Float Road Slough carry?

About 4,166 vehicles per day (2018 count), of which roughly 22% are trucks.

How long is HWY 412 Section 07 over Float Road Slough?

The structure is 44 ft (13.5 m) long with a longest span of 10 ft (3 m).

Who owns HWY 412 Section 07 over Float Road Slough?

It is owned by the State Highway Agency.