US Bridges

SH 5/STONE County over Mill Prong

Good

Stone County, Arkansas · 1 MI S HWY 14 · Structure no. 000000000006405

Built
1992
33 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
552 ft
5 main spans
Daily traffic
1,900
2018 count
Owner
State
State Highway Agency

About this bridge

SH 5/STONE County over Mill Prong is a steel continuous stringer/multi-beam or girder carrying SH 5/STONE County over Mill Prong in Stone County, Arkansas. It was built in 1992, so it is 33 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 1,900 vehicles a day, roughly 12% of them trucks, projected to reach 2,385 by 2028. The structure is 552 ft (168.2 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSH 5/STONE County
CrossesMill Prong
Location1 MI S HWY 14
RouteState Highway 5
Coordinates35.84285, -92.07711
Functional classRural Minor Arterial

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 protection8 Very GoodNo problems noted.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34 US tons
Inventory rating27 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length552 ft (168.2 m)
Longest span135 ft (41.1 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,900 (2018)
Projected traffic2,385 by 2028
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

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 5/STONE County over Mill Prong built?

It was built in 1992, making it 33 years old in 2025.

What condition is SH 5/STONE County over Mill Prong 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 December 2024.

How much traffic does SH 5/STONE County over Mill Prong carry?

About 1,900 vehicles per day (2018 count), of which roughly 12% are trucks.

How long is SH 5/STONE County over Mill Prong?

The structure is 552 ft (168.2 m) long with a longest span of 135 ft (41.1 m) and a deck 43 ft wide.

Who owns SH 5/STONE County over Mill Prong?

It is owned by the State Highway Agency.