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Update as of May 11: The blast has been rescheduled for next week. Up to three blasts are expected in the next two weeks, with each lasting up to one hour. 

The first blast of the season is expected to close U.S. Highway 95 south of Culdesac for up to one hour starting 6 p.m. on Wednesday.

Blasting this spring will make room for a new passing lane for southbound drivers. Blasts will generally be timed to avoid peak travel times and require a one-hour closure.

“We are expecting more blasting this month, but the schedule will be sporadic,” Resident Engineer Curtis Arnzen said. “Generally, there will be less blasting this year compared to previous work in the canyon.”

Construction this year will add 2.3 miles of passing lane and is part of a series of projects to add an 11-mile passing lane in Culdesac Canyon.

Crews will also replace the culvert for Rock Creek. For most of construction, drivers can expect all existing lanes to remain open. The contractor may reduce the highway to one lane at night.

Download a corridor fact sheet.

Drivers should pay attention to signs in the work zone to learn about the timing of the next blast or check 511.idaho.gov. Work is scheduled to end by early November.

 

Nighttime lane closures on I-90 over the next two months will collect data for a study to widen Interstate 90 between the Washington state line and Sherman Avenue in Coeur d’Alene.

Crews will focus on the section between Spokane Street and Northwest Boulevard, closing either a shoulder or lane in one direction at a time. Work will be done at night between 7 p.m. and 5 a.m., with the first closure scheduled for tomorrow night.

“The closure will move along the stretch as work progresses, spanning approximately one-quarter to one-half mile in length at any given time,” ITD Project Manager Erika Bowen said.

Drivers are asked to be aware of closures, to slow down and move to the open lane.

With traffic conditions congested now and volumes expected to double by 2045, ITD is studying I-90 from the Washington state line to Coeur d’Alene to identify improvements, modernize the system, reduce crashes and save drivers’ time. The study will evaluate needs and identify potential solutions like additional lanes and reconfigured interchanges to improve safety, capacity and mobility for current and future travel demands.

The work requiring this lane closure will investigate the pavement and foundations along the stretch using radar, drilling and other technologies to determine current surface conditions and the ability of the soil to support any potential new structures.

“Right now, we are collecting data to identify which improvements are needed and expect to bring options to the public this September,” Bowen said.

To learn more about the study and sign up for future updates, visit itdprojects.org/i90corridor. 

This study is funded with Transportation Expansion and Congestion Mitigation (TECM) funds. This deliberate investment of Leading Idaho TECM funds allows ITD to accelerate project timelines to address rapid growth and build critical infrastructure in the CDA area that would otherwise take many years to build.

The Idaho Transportation Department asks motorists to plan for intermittent overnight delays as construction continues to widen Eagle Road (State Highway 55) between Franklin Road and Ustick Road in Meridian. The project will increase mobility by adding a third southbound lane along this 1.6-mile segment.

Over the next few weeks, crews will be working to construct new signal and power poles at the intersections of Franklin Road, Pine Avenue, Fairview Avenue, and River Valley Street. This work will intermittently impact traffic during the nighttime hours of 10 p.m. to 5 a.m. Drivers should expect up to 15-minute delays and possible lane closures when traveling through the work zone. Check Idaho 511 for the current work schedule and consider using an alternate route.

Learn more about this project and sign up for construction updates at itdprojects.org/eaglerdwidening.

Starting Monday, May 9, crews will start working at night to haul away waste materials for construction to widen three miles of State Highway 3 near St. Maries.

“This will really impact residents along the detour route, since trucks will need to use Goosehaven Road to access the site,” Project Manager Matt Heinichen said.

Crews will continue to work on SH-3 during the day, but now residents and other drivers will have to contend with increased truck traffic and noise on Goosehaven Road, starting at 8 p.m. each night. A pilot car will be in use during the day, but between 8 p.m. and 6 a.m. trucks will travel in groups with traffic controlled by a flagger.

“Night work is expected to last one month until workers are done excavating the northbound lane,” Heinichen said. “Right now there’s not enough space to have trucks to efficiently deliver materials to the site and haul away waste at the same time.”

Download a photo of excavation on SH-3.

Plans call for the highway to be widened by 11 feet to the east, making room for 11-foot travel lanes and 3-foot shoulders. Guardrail will be installed along the east side, with the project set to be complete in August.

Learn more about the project at itdprojects.org/stmariesdike.

Signal work is expected to begin next week at the intersection of Blue Lakes Boulevard (U.S. Highway 93) and Fillmore Street/Bridgeview Boulevard. This is part of a larger pavement rehabilitation project scheduled to occur this summer on Blue Lakes Boulevard from the Perrine Bridge to Pole Line Road.

In the coming weeks, crews will complete preliminary foundation work on the traffic signal. A total signal replacement will occur at the intersection after the paving on US-93 is finished later this summer.

“Being able to start the initial foundation work now will help expedite the construction timeline and further reduce impacts to motorists traveling through this busy corridor this summer,” said ITD Project Manager Steve Hunter.

No lane adjustments or changes to current traffic patterns will occur with the signal replacement.

“We are not altering how motorists travel through the intersection, just replacing the traffic signal, foundation, and associated components,” stated Hunter.

Motorists are encouraged to watch for lane reductions and crews in the area. Most signal work will occur during daytime hours.

In conjunction with the signal replacement, ITD will improve the pavement on Blue Lakes Boulevard starting in June. More details about construction will be shared at an upcoming public meeting.

Date: Thursday, May 19, 2022
Time: 5 p.m. – 7 p.m. (Open House Format)
Location: Twin Falls High School
1615 Filer Ave. E, Twin Falls

For individuals not able to attend the meeting in person, an online option will be available on the project website.

To learn more about the project and sign up for construction updates, please visit itdprojects.org/projects/us-93improvements.

As part of Governor Brad Little’s “Leading Idaho” initiative, the 2021 Idaho Legislature dedicated $126 million of one-time funds from Idaho’s budget surplus to transportation projects statewide. The funds were split 60/40 between ITD and local jurisdictions. Construction on the Blue Lakes project is paid for with ITD’s portion of the funds that will accelerate projects to replace bridges, restore pavements, and improve mobility in communities across Idaho.

On Monday (May 2), a closure is expected to begin at the intersection of U.S. Highway 93 and 100 S Road that will prevent drivers from accessing the highway from the west side. This is part of the ongoing widening project, which will transition the highway from two lanes to four to increase mobility and traffic flow in the area.

“Closing 100 South Road at US-93 will allow crews to tie the new roadway alignment into the existing approach,” said ITD Project Manager Jake Turrittin. “Through traffic on US-93 will not be impacted, but drivers will not be able to turn onto or from the western approach of 100 S Road.”

The closure is expected to be in place for approximately two weeks. An additional closure will be required for the east side of 100 S at a later date.

While crews tie in the new alignment, construction of the new southbound lanes will also continue. Motorists can anticipate minor delays and are encouraged to plan ahead if commuting through the area. Signage will also be in place to safely direct those traveling through the work zone.

Drivers are advised to use caution and watch for workers and heavy equipment entering and exiting the highway.

“This project will improve safety at the US-93 and 100 South intersection for both passenger and commercial vehicles,” explained Turrittin. “The end result will be a divided highway similar to what drivers encounter one mile south of this area.”

Idaho Materials and Construction is the prime contractor for this project, which is expected to be completed this fall.

After careful consideration, the Nez Perce Tribe (NPT) and the Idaho Transportation Department (ITD) delayed advertising the project to build a new interchange at the east entrance of Aht’Wy Plaza for construction.

“Our goal was to start construction on the interchange this spring, but prices on materials have compelled both parties to step back and consider how to move forward,” ITD District Engineer Doral Hoff said.

Construction costs have increased with rising prices for essential materials like steel, concrete, asphalt and fuel. While the project will still make use of $19 million in grant funding, costs have escalated since the grant was announced in September of 2020.

In response to price increases, the NPT has contributed an additional $1.2 million to construction, but more recent estimates call for another $5.5 million. To cover this increase, the project was submitted for additional federal funding with recipients announced later this summer.

Advertisement will be delayed until this summer, at which point the NPT and ITD will decide how to proceed. If the project is awarded more money, construction could begin late this summer.

“The Tribe and ITD are still committed to working together to see this project through, despite any funding challenges,” NPT Transportation Manager Mary Beth Frank Clark said.

Download renderings of the design of the interchange.

This interchange project is not the only project to be delayed due to cost increases—last week the Idaho Transportation Board rejected the bid for the project to resurface eight miles of US-12 between Orofino and Greer. That project will not be advertised again until fall for construction next spring.

“Inflation and supply chain issues continue to make construction a challenging time for transportation departments across the nation,” Hoff said. “At ITD we budget increases for every project every year due to inflation, but we were not expecting such severe circumstances.”

ITD staff will continue to monitor guidance from national transportation economists and results from bid openings to avoid delaying additional projects. The department is also partnering with the Associated General Contractors of Idaho to limit the effects of inflation.

The Idaho Transportation Department (ITD) begins construction to widen State Highway 44 between State Highway 16 and Linder Road near Star and Eagle on Monday, April 25. Improvements include an additional lane in each direction, wider shoulders, and dedicated right turn lanes at major side streets.

During construction drivers should expect the speed limit lowered to 45 mph and lanes reduced in size from 12 to 11 feet wide. One lane in each direction will remain open during daytime hours throughout the project.

“The large amount of growth in the area has transformed this corridor. The work on this section of State Highway 44 is meant to reduce traffic congestion and improve safety for all road users,” said ITD Design and Construction Engineer Daris Bruce. “Please remember to pay attention and slow down in the work zone.”

Work is expected to wrap up in August 2022.

SH-44 is the only east-west highway that links Canyon County to Ada County north of the Boise River. It connects Caldwell, Middleton, Star, Eagle, and Garden City. Development in the area has changed this once rural corridor into a mix of residential subdivisions and businesses.

To sign up for construction updates, text 44Widening to 1-866-483-8422 or visit the project website at itdprojects.org/SH4416toLinder.

Please plan ahead for Interstate 84 ramp closures and delays over the weekend of April 22-25 between Caldwell and Nampa. As work continues to widen I-84 through Canyon County, beginning Friday, April 22, I-84 traffic will shift from the outside lanes to the new median lanes between Ustick Road and Karcher Road. Please drive carefully and watch for signs.

Speed will be reduced to 45 mph overnight with one lane open in each direction. Both lanes will be open during the day. Additional impacts include the following:

• The westbound on-ramp at Karcher will be closed all weekend, from Friday, April 22 at 10 p.m. to Monday, April 25 at 6 a.m. Traffic will be detoured down eastbound I-84 to Northside Boulevard. Motorists can then enter westbound I-84 at the Northside on-ramp.
• The eastbound off-ramp at Karcher will close at 10 p.m. on Saturday, April 23 and will re-open at 7 a.m. on Sunday, April 24. Traffic will be detoured to the Northside Boulevard eastbound off-ramp.

See detour maps and video below. This work is weather dependent and will be rescheduled if necessary.

This weekend is the first of three shifts that will take place to move traffic into the new median lanes on I-84 between Franklin Road and Karcher Road. Additional shifts will occur later this spring and summer. Once traffic is shifted, crews will start working on improvements to the outside lanes.

Construction is expected to be complete in summer 2023.

For more information about the I-84 widening project, visit itdprojects.org/84corridor or text 84CORRIDOR to 1-866-483-8422 to request construction updates. You can also contact ITD at 84corridor@itd.idaho.gov and (208) 334-8002.

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https://www.youtube.com/watch?v=57JfaKRyYps