Montana Department of Transportation

MDT News


Montana Department of Transportation to complete work along I-15
corridor south of Wolf Creek between mile markers 222 and 246

CREEK, Mont. (April 4, 2018)—The Montana Department of
Transportation, announces that work on the final phase of the D3
Rockfall Mitigation project south of Wolf Creek, Montana, will begin
Monday, April 9, 2018.	The D3 Rockfall Mitigation project along
Interstate 15 in Prickly Pear Canyon has been in progress since July

The third phase of the D3 Rockfall Mitigation work, starting
5 miles south of Wolf Creek, is projected to complete planned
rockfall mitigation work along this section of Interstate 15. General
contractor, Hi-Tech Rockfall, will head work up for the third phase.
Anticipated workdays are Monday through Friday, with delays of up to
30 minutes possible from 8:00 a.m. to 4:00 p.m. Any load over 12 feet
wide, including farm equipment, will be permitted Monday – Thursday
from 5:00 p.m. – 7:00 p.m. Wide loads cannot be piloted through the
work zone Friday through Sunday for the duration of the project. Work
is scheduled for completion in October 2018, weather permitting.
“Safety is really our number one priority on any job site, including
this one,” says Dan Rivas, Project Manager for Hi-Tech Rockfall
Construction. “We want to thank travelers along this stretch in
advance for their patience with the project, and for their attention
to posted traffic rules and flagger direction. We’re looking forward
to a much safer roadway for the long run when this work is

Rockfall mitigation on the roadway will require single
lane closures through the Prickly Pear Canyon. Traffic may
occasionally be reduced to one lane and drivers may experience
delays, detours and increased traffic. Work will be performed between
mile markers 238 and 246 on Interstate 15 from April to June. From
June through October, work will take place between mile markers 222
and 227. Using alternate routes when possible is recommended. For
those wishing to recreate on the Little Prickly Pear Creek or
Missouri River, access will not be impacted. 

Jim Sullivan, Montana
Department of Transportation Project Manager, says, “We want to
remind everyone who uses this roadway to budget an additional 30
minutes or so when traveling in either direction south of Wolf Creek
or Hardy Creek. We’re hoping to limit delays as much as possible,
though we will have times when rocks are loose and we’ll have to make
sure the area is totally cleared for safety.” 

Phase three work will
include slope scaling; installation of rock bolts and draped mesh and
construction of rockfall attenuator fences and a flexible rockfall
barrier. Improvements to the rock wall will allow loose rocks to be
harmlessly guided to the ground and contained with the barrier,
dramatically reducing impact of rockfall on roads and vehicles. 

addition, the project will include placement of concrete barrier rail
and new guardrail as additional roadway measures to keep motorists
safe. The overall goal of this project is to eliminate significant
rockfall, creating a safer roadway and limiting costly roadway repair
and maintenance.

For more information about Hi-Tech Rockfall
Construction, visit
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