US Bridges

SH 612 NW Ramp over I-49 N&s/Sh 612 En Ramp

Good

Benton County, Arkansas · SH 612/ I-49 Interchange · Structure no. 000000000007314

Built
2018
7 years old
Condition
Good
inspected March 2022
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,102 ft
8 main spans
Daily traffic
7,500
2014 count
Owner
State
State Highway Agency

About this bridge

SH 612 NW Ramp over I-49 N&s/Sh 612 En Ramp is a steel continuous stringer/multi-beam or girder carrying SH 612 NW Ramp over I-49 N&s/Sh 612 En Ramp in Benton County, Arkansas. It was built in 2018, so it is 7 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 7,500 vehicles a day, roughly 12% of them trucks, projected to reach 15,000 by 2034. The structure is 1,102 ft (335.9 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesSH 612 NW Ramp
CrossesI-49 N&s/Sh 612 En Ramp
LocationSH 612/ I-49 Interchange
RouteState Highway 612
CountyBenton County
StateArkansas
Coordinates36.23967, -94.16132
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
Deck9 ExcellentNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure9 ExcellentNo problems noted.
Last inspectionMarch 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans8
Design loadHL 93
Structure length1,102 ft (335.9 m)
Longest span170 ft (51.8 m)
Deck width30 ft (9.2 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deck99 ft (30.2 m)

Traffic and service

Average daily traffic7,500 (2014)
Projected traffic15,000 by 2034
Trucks12%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SH 612 NW Ramp over I-49 N&s/Sh 612 En Ramp built?

It was built in 2018, making it 7 years old in 2025.

What condition is SH 612 NW Ramp over I-49 N&s/Sh 612 En Ramp 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 March 2022.

How much traffic does SH 612 NW Ramp over I-49 N&s/Sh 612 En Ramp carry?

About 7,500 vehicles per day (2014 count), of which roughly 12% are trucks.

How long is SH 612 NW Ramp over I-49 N&s/Sh 612 En Ramp?

The structure is 1,102 ft (335.9 m) long with a longest span of 170 ft (51.8 m) and a deck 30 ft wide.

Who owns SH 612 NW Ramp over I-49 N&s/Sh 612 En Ramp?

It is owned by the State Highway Agency.