US Bridges

US-79/SEC-15/L4.29 over Walnut Lake / Big Creek

Good

Lee County, Arkansas · 3.5 Miles West of SH 238 · Structure no. 000000000006978

Built
2005
20 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
307 ft
5 main spans
Daily traffic
640
2018 count
Owner
State
State Highway Agency

About this bridge

US-79/SEC-15/L4.29 over Walnut Lake / Big Creek is a steel continuous stringer/multi-beam or girder carrying US-79/SEC-15/L4.29 over Walnut Lake / Big Creek in Lee County, Arkansas. It was built in 2005, so it is 20 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 640 vehicles a day, roughly 27% of them trucks, projected to reach 700 by 2038. The structure is 307 ft (93.6 m) long and 43 ft wide. If it were closed, the detour would be 41 mi (66 km).

CarriesUS-79/SEC-15/L4.29
CrossesWalnut Lake / Big Creek
Location3.5 Miles West of SH 238
RouteU.S. Route 79
Coordinates34.77901, -91.04701
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length307 ft (93.6 m)
Longest span67 ft (20.4 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic640 (2018)
Projected traffic700 by 2038
Trucks27%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed41 mi (66 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-79/SEC-15/L4.29 over Walnut Lake / Big Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is US-79/SEC-15/L4.29 over Walnut Lake / Big 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 November 2023.

How much traffic does US-79/SEC-15/L4.29 over Walnut Lake / Big Creek carry?

About 640 vehicles per day (2018 count), of which roughly 27% are trucks.

How long is US-79/SEC-15/L4.29 over Walnut Lake / Big Creek?

The structure is 307 ft (93.6 m) long with a longest span of 67 ft (20.4 m) and a deck 43 ft wide.

Who owns US-79/SEC-15/L4.29 over Walnut Lake / Big Creek?

It is owned by the State Highway Agency.