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District 6

District 6


East Idaho

d6_openroadDistrict 6 covers 18,588 square miles of the state and maintains 2,302 lane miles (lanes of road, on- and off-ramps, etc.) and 358 bridges.

District 6 is the third largest by population, with 207,000 residents or 13 percent of the state. Terrain includes plains, valleys and mountains, with highlands boasting eight of the 12 highest mountain passes in Idaho.

District headquarters is at 206 North Yellowstone Highway south of Rigby in Jefferson County, where Jason Minzghor is district (head) engineer. Former Idaho legislator Lee Gagner, of Idaho Falls, represents District 6 and is Vice Chairman on the Idaho Transportation Board. Learn more about District 6.

District 6 Phone: (208) 745-7781
District 6 Fax: (208) 745-8735
Office of Communication Contact:
Bruce King

Lee Gagner
Board Member
(208) 521-8600
Jason Minzghor
Jason Minzghor
District Engineer
Email Jason

Construction List

East Idaho: 2017 Highway Construction Projects (District 6)

2017 Construction Map

I-15 construction

I-15: Bridge Repair (3 bridges)
• Starting May 11
• Bridge closures, detours, lane and width restrictions, and reduced speed limits
• This project will consist of driving-surface overlays, concrete repair and waterproofing, and guardrail upgrades – affecting both Interstate 15 and local roads.
• Contractor: J M Concrete, of Idaho Falls. Construction budget is $646,000.

I-15: Spencer to Montana Line Overlay
• Starting about July 7
• Interstate reduced to a single lane of traffic in each direction of travel and speed reductions for 16 miles along I-15; ramp closures at exits.
• Work consists of resurfacing travel lanes and on- and off-ramps.
• Contractor: Western Construction Inc., of Boise. Construction budget is $6.94 million.

US-20: Thornton Interchange
• Starting this spring
• Route reduced to one lane of traffic in each direction of travel at night, with speed reductions; ramp closures at Exit 328.
• Work consists of microsurfacing (sealing) the travel lanes and on- and off-ramps, painting the overpass and landscaping.
• Contractor: Western Construction Inc., of Boise. Construction budget is $308,000.

US-20: Bridge Repair (2 bridges)
• Starting May 15
• Lane and width restrictions; reduced speed limits
• This project will consist of deck overlays, concrete repair and waterproofing – affecting U.S. 20.
• Contractor: D.L. Beck Inc., of Rexburg. Construction budget is $372,000.

US-20: Curr Canal Bridge replacement
• Starting in October 2017
• Travel reduced to one lane of traffic in each direction, with speed reductions
• Replacing the bridge and improving approaches.
• This project hasn’t yet been advertised for bids.

ID-33: Owsley Canal Bridge replacement in Mud Lake
• Starting October 31, 2017
• Travel reduced to one lane of traffic, with delays
• Replacing the bridge with a large culvert and improving approaches.
• Contractor: Knife River Corporation, division based in Boise. Construction budget is $800,000.

ID-33: Henry’s Fork Bridge to junction with U.S. 20 mill and overlay
• Starting as soon as July 26
• Reduced to a single lane of traffic, with delays
• Work consists of resurfacing travel lanes.
• Contractor: DePatco Inc., of St. Anthony. Construction budget is $663,000 million.

• Starting this summer
• Traffic impact will include lane restrictions, speed reductions and potential other delays to normal highway travel.
• Work includes constructing rumble strips and installing delineators along stretches of road.
• Contractor: Surface Preparation Technologies Inc. Construction budget is $289,000.

• Starting in May and ending in September
• Traffic impact will include lane restrictions, and intersections may be operated with stop signs while work is being completed at each intersection.
• Work includes upgrading 22 different traffic signals.

  • Upgrades include replacing the older five-section left-turn signal heads with new four-section heads that utilize the flashing yellow arrow.
  • Rigby: The signal at State Street and Main Street will be completely replaced, and the intersection will be temporarily controlled by “All-Way” stop signs.
  • Rexburg: The signal on Main Street and 5th West will also be completely replaced. This intersection will operate as a 2-way stop. The signal controllers in some of the signal cabinets will be replaced, and some signals will have uninterrupted power supplies (UPSs) installed next to the signal cabinets.

• Contractor: Wheeler Electric Inc. Construction budget is $1.8 million.

• Starting in September 2017
• Travel reduced to one lane of traffic, with delays
• Routes and locations include:

  • US-93: Warm Springs bridges
  • US-89: Multiple Ovid Creek bridges
  • ID-28: Various Lemhi River bridges
  • US-26: Danskin Canal Bridge
  • US-26: Gooding Canal bridges

• Replacing bridges and improving approaches.
• Construction budget and contractor will be known in September.


Drilling to slow traffic on state highways in eastern Idaho starting Monday (Aug. 7)

August 7, 2017
RIGBY - Work zones will be necessary for routine roadbed sampling of several state highways in eastern Idaho on weekdays...
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Nearly 100 attend Targhee Pass workshop July 27 in Island Park

August 3, 2017
RIGBY - Nearly 100 people attended the July 27 alternative-development workshop in Island Park for the Targhee Pass Environmental Assessment...
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Idaho one of only two western states to win multiple regional transportation awards

June 29, 2017
BOISE - Two Idaho Transportation Department (ITD) efforts -- a massive clean up of a landslide in north-central Idaho, and...
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ITD gearing up for eclipse chasers

May 23, 2017
Preparations at ITD Headquarters and in the districts are well underway for the 2017 total solar eclipse. Officials throughout the...
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Traffic sensors will aid traffic flow on I-15 during upcoming construction

March 21, 2017
Bluetooth-based roadway sensors in the Interstate 15 median will provide real-time travel information during construction starting later this spring.
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U.S. 26, U.S. 93 & I-15 Seal Coat Information
· FAQ’s about seal coats
· Release regarding U.S. 26, U.S. 93 & I-15 scenario
· Contact information

Business Plan
· FY 2016 District 6 Business Plan

Future Funding
· District 6 Funding


Public Outreach

Targhee Pass Environmental Assessment (EA) Update

The Idaho Transportation Department (ITD) is initiating an environmental assessment to evaluate risks, benefits, opportunities and costs associated with reconstruction of Targhee Pass (U.S. 20 between its junction with Idaho 87 and the Montana state line). The Federal Highway Administration (FHWA) is the lead agency on this study and will be signing the final study document. This study will be completed in accordance with the National Environmental Policy Act (NEPA).

ITD held an Alternative Workshop on July 27 in Island Park. If you were unable to attend, you can review displays and information here: Island Park- Workshop 7/27 – materials. Please review this information and then send comments and alternative suggestions to the study team by August 10. We need to hear your ideas as soon as possible so that we can develop alternatives and schedule another public meeting during the summer season (before Labor Day).

Visit for study information, updates, and to provide comments on the study.

You can also contact the study team at:
Targhee Pass Study Team (c/o The Langdon Group)
677 South Woodruff Avenue
Idaho Falls, ID 83401

Targhee Pass is a portion of the U.S. 20 corridor that has been evaluated as part of a larger safety corridor planning effort for U.S. 20 from Chester to the Montana State Line. ITD has put together a great data resource that contains a vast amount of information and data on this study:


Contact Info