US Bridges

SH 612 En Ramp over I-49 & Silent Grove Rd.

Good

Benton County, Arkansas · SH 612 / I-49 Interchange · Structure no. 000000000007312

Built
2018
7 years old
Condition
Good
inspected March 2022
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
980 ft
5 main spans
Daily traffic
10
2017 count
Owner
State
State Highway Agency

About this bridge

SH 612 En Ramp over I-49 & Silent Grove Rd. is a steel continuous stringer/multi-beam or girder carrying SH 612 En Ramp over I-49 & Silent Grove Rd. 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 10 vehicles a day, roughly 12% of them trucks, projected to reach 16,000 by 2014. The structure is 980 ft (298.6 m) long and 28 ft wide.

Location

Open in Google Maps
CarriesSH 612 En Ramp
CrossesI-49 & Silent Grove Rd.
LocationSH 612 / I-49 Interchange
RouteU.S. Route 612
CountyBenton County
StateArkansas
Coordinates36.2384, -94.16032
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
Deck8 Very GoodNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Last inspectionMarch 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation9: Superior to present desirable criteria
Deck geometry7: Better than present minimum 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 spans5
Design loadHL 93
Structure length980 ft (298.6 m)
Longest span240 ft (73 m)
Deck width28 ft (8.5 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deck99 ft (30.2 m)

Traffic and service

Average daily traffic10 (2017)
Projected traffic16,000 by 2014
Trucks12%
Lanes on structure1
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 En Ramp over I-49 & Silent Grove Rd. built?

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

What condition is SH 612 En Ramp over I-49 & Silent Grove Rd. 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 En Ramp over I-49 & Silent Grove Rd. carry?

About 10 vehicles per day (2017 count), of which roughly 12% are trucks.

How long is SH 612 En Ramp over I-49 & Silent Grove Rd.?

The structure is 980 ft (298.6 m) long with a longest span of 240 ft (73 m) and a deck 28 ft wide.

Who owns SH 612 En Ramp over I-49 & Silent Grove Rd.?

It is owned by the State Highway Agency.