US Bridges

US 412-07- Lm 1.79 over White Oak Slough

Good

Lawrence County, Arkansas · 0.7 MI E of Walnut Ridge · Structure no. 0000000000X1048

Built
2001
24 years old
Condition
Good
inspected June 2023
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
3,900
2018 count
Owner
State
State Highway Agency

About this bridge

US 412-07- Lm 1.79 over White Oak Slough is a concrete culvert carrying US 412-07- Lm 1.79 over White Oak Slough in Lawrence County, Arkansas. It was built in 2001, so it is 24 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 3,900 vehicles a day, roughly 19% of them trucks, projected to reach 4,600 by 2033. The structure is 23 ft (6.9 m) long. If it were closed, the detour would be 6.8 mi (11 km).

CarriesUS 412-07- Lm 1.79
CrossesWhite Oak Slough
Location0.7 MI E of Walnut Ridge
RouteU.S. Route 412
Coordinates36.07056, -90.92821
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no 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
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating22 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 20
Structure length23 ft (6.9 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,900 (2018)
Projected traffic4,600 by 2033
Trucks19%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 US 412-07- Lm 1.79 over White Oak Slough built?

It was built in 2001, making it 24 years old in 2025.

What condition is US 412-07- Lm 1.79 over White Oak 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 June 2023.

How much traffic does US 412-07- Lm 1.79 over White Oak Slough carry?

About 3,900 vehicles per day (2018 count), of which roughly 19% are trucks.

How long is US 412-07- Lm 1.79 over White Oak Slough?

The structure is 23 ft (6.9 m) long with a longest span of 11 ft (3.4 m).

Who owns US 412-07- Lm 1.79 over White Oak Slough?

It is owned by the State Highway Agency.