Beginning Monday, the Interstate 15 northbound rest stop north of Blackfoot will be closed for maintenance. Crews will be repainting, replacing sidewalks, and landscaping. Work will continue until Monday, July 28.
The westbound on-ramp to I-84 at Garrity Boulevard will be closed Monday night beginning at 8 p.m. as crews complete paving work.
The ramp is expected to reopen by 5 a.m. Tuesday morning.
Motorists are advised to use alternate routes and plan ahead to avoid delays. Nearby interchanges at Northside Boulevard and Meridian Road can be used to access westbound I-84.
For the latest traffic updates, visit 511.idaho.gov or download the Idaho 511 app.
Work on State Highway 14 near Elk City will begin Monday to repair potholes and resurface 10 miles of the highway. Shoulders in poor condition will also be repaved to further enhance safety.
When approaching the work zone, motorists can expect flaggers and delays between 15 to 30 minutes. The highway will be reduced to one lane of alternating traffic guided by pilot cars. Crews will start at milepost 23 and work east towards milepost 33 and Elk City.
All work will temporarily shut down by 6 p.m. on August 7 in preparation for Elk City Days held August 8-10. Highway crews will start back up again on August 11.
Paving will significantly improve rideability and make it a safer road for the traveling public.
This $2.5 million project is anticipated to wrap up mid-September.
Up-to-date traffic information may be found by visiting 511.idaho.gov. Travelers can also dial 5-1-1 or download the app.
On Friday the Idaho Transportation Department will shift traffic from existing State Highway 54 to the new section of pavement between SH-41 and Ramsey Road.
Drivers will be routed onto this new section of roadway while crews begin rebuilding the existing lanes. During this time, the speed limit will be reduced to 45 mph and passing will not be allowed for the remainder of the construction season.
In the coming days and weeks, access to side streets and driveways in the area will be temporarily closed as crews work directly in front of them, but closures will be short and only in place as long as necessary – likely an hour or less. Drivers should pay attention to local signage for closures and detour routes as work rolls through the area.
This traffic shift marks a key milestone in the ongoing highway improvement project which is on track to be completed in 2026.
Drivers are urged to use caution in the area and watch for flaggers and signs.
Idaho 511 is available as a resource to provide updates on construction impacts and road conditions state-wide.
Anyone interested in following this project can register for email updates here.
BOISE — The Idaho Transportation Department’s Office of Highway Safety (OHS) is reminding drivers to slow down as law enforcement agencies across the state ramp up speed patrols this month.
This effort, taking place July 20–26, is part of a broader regional campaign in partnership with neighboring states Washington, Oregon, Montana, and Alaska. With coordinated patrols across state lines during this time, drivers should expect to see an increased law enforcement presence wherever their summer travels take them throughout the Northwest.
“Speed limits are not suggestions—they’re there to save lives,” said Josephine Middleton, ITD Highway Safety Manager. “Slowing down gives you more time to react and reduces the severity of crashes.”
So far this year, 126 people have died on Idaho roads, up from 113 at this time last year. During the “100 Deadliest Days” between Memorial Day and Labor Day, Idaho has seen 49 fatalities in 2025, compared to 40 during the same period in 2024.
Drivers are reminded to follow posted speed limits, allow extra travel time, and adjust speed for weather and traffic conditions.
Drive Well, Idaho: Every Trip. Every Time.
The Idaho Transportation Department, in partnership with Garden City, invites the community to attend an online meeting to learn more about a study to develop a stormwater drainage plan and identify corridor improvement projects. Future projects may include multi-use pathways that serve pedestrians and cyclists and other active modes along Chinden Boulevard.
The online self-guided meeting will be available from July 18 through August 1 at https://itdprojects.idaho.gov/pages/chinden-drainage-and-design.
The online meeting provides the public with an opportunity to review and provide feedback on study concepts for improved water management systems and future projects to enhance connectivity and mobility along the corridor.
The study aims to develop an integrated corridor plan to guide development and identify specific projects for future planning, design, and construction. This unified plan will ensure that consistent drainage and multi-modal facilities, such as sidewalks and bike lanes, are included with each new construction project along the corridor.
Currently, funding has not been allocated for future Chinden Boulevard improvement projects. Final recommendations and cost estimates are scheduled to be completed early in 2026.
The Idaho Transportation Department invites community members to learn about the future State Highway 16 and State Highway 44 Interchange at a public meeting Thursday evening. Construction will begin this summer to replace the current intersection with a new interchange design that includes ramps to help drivers get on and off the highway more safely and easily.
Community members may participate in person Thursday, or online July 17-31, to learn about anticipated traffic impacts and how to stay informed during construction.
“The new interchange at SH-16 and SH-44 will address growing traffic demands in the Treasure Valley,” Project Manager Styles Salek said. “This interchange will also help reduce congestion along West State Street [SH-44], a heavily traveled route for commuters and travelers alike.”
The interchange is part of ITD’s long-term vision for State Highway 16. The first phase of highway improvements, that included highway widening, were completed in 2014 between US-20/26 and SH-44.
Funding for this project comes from the Idaho Transportation Expansion and Congestion Mitigation bonding program. The program allows ITD to accelerate project timelines to address rapid growth and build critical infrastructure today that would otherwise take many years to complete.
Stay informed by signing up for email and text alerts regarding project updates. Text HIGHWAY16 to 1-866-483-8422 or visit itdprojects.org/sh16corridor. For questions, contact the project team at (208) 334-8008. Maps and other details can also be found on the project website.
With the painting of final lane markers on the new roadway, construction at the I-86/I-15 “Flying-Y” System Interchange in Pocatello is coming to a successful conclusion. Begun in July 2022, the three-year $112 million project has dramatically changed the drivability of the interchange.
“We spent over eight years from design to actual construction of the project. We’re pretty proud of it. It’s one of the bigger projects we’ve designed. It’s one of the largest projects ever designed entirely by ITD staff and inspected with ITD personnel. Most of the people on the team live here locally and this has been a really meaningful project for us to make sure we did our very best,” said Project Engineer Aaron Baird.
Critical areas that were improved include the northbound Pocatello Creek on-ramp, the northbound-to-westbound collector distributor, and the eastbound-to-northbound ramp. Each of those improvements made merging from one Interstate to the other smoother and safer for motorists.
“We’re excited for people to use the final product. We hope it’s something that will last a long time and keep the travelling public safe as they use it,” said Project Manager Greg Roberts.
The scale of the endeavor has been truly historic. Approximately 1 million cubic yards of excavation have been completed. In addition, about 490,000 tons of base material was brought in; 116,000 tons of asphalt were placed; and over 7,700 cubic yards of concrete were poured. Nearly 70,000 square feet of retaining walls were also built throughout the project area. Finally, ITD built eight new bridges. Four of those have precast concrete girders and four have steel girders. In all, over 5 million pounds of steel has been used in the new bridges.
Construction crews worked year-round and around the clock for approximately three years to complete the project. To minimize disruption to traffic, key demolition operations were conducted at night. These efforts minimized the impact on traffic while the interchange was being reconstructed.
In addition to the major changes inside the Flying-Y design, the Chubbuck Road overpass was reconstructed as an underpass to improve site distances and vertical clearance on I-15, and to improve access to the Wellness Center from Chubbuck. The new underpass is significantly wider and includes bike lanes and sidewalks.
ITD also worked closely with the Portneuf Greenway to construct a pedestrian and bicycle path on the east side of the worksite to connect the Greenway to the Wellness Center.
Work left to wrap up the project will be off the roadway and conducted on the shoulders. In addition, ITD will be seeding open ground with native grasses.
“Thank you for being patient with us and seeing our vision, seeing what we’re trying to do to positively impact this community,” said Project Manager Zak Johnson.
District Engineer Todd Hubbard echoed those sentiments, “This project has been a great success and is an important addition to the community for the safety of drivers. It has been a lot of work to get all of it completed and to keep traffic moving. I want to thank everyone for their patience as we have worked on this project over the last three years. And a thank you to the project team and Sundt-Cannon Joint Venture for a project well done.”
Drivers are encouraged to remain attentive, move over for workers and emergency vehicles, and follow posted speed limits.
The Idaho Transportation Department will change the traffic pattern on westbound I-84 in Caldwell starting Sunday night. Westbound motorists are advised to drive with caution and follow signage.
Under the new traffic pattern, westbound traffic will split into two lanes just after the 10th Avenue Interchange. The right lane will allow drivers to either continue west or exit at Centennial Way, while the left lane will continue westbound with no access to the exit. Once the lanes split, there will be a physical barrier between them, and drivers will be unable to change lanes. Motorists should pay close attention to signage and make sure they are in the correct lane before the split, especially if they plan to exit at Centennial Way. The lanes will merge back together just after the Centennial Way Interchange and westbound traffic will return to its regular configuration. Click here to view a map of the traffic change.
To set up the traffic changes, crews will close the westbound off-ramp at Centennial Way the night of Sunday, July 13 from 10 p.m. to 5 a.m. Motorists will be detoured to Exit 26 where they can then return on I-84 eastbound to exit at Centennial Way. Click here to view a detour map.
In early August, crews plan to move into the next phase of construction. Westbound traffic will return to the westbound side of the highway and ITD expects to reopen the 10th Avenue westbound on-ramp at that time. The ramp was closed in June to reconstruct the westbound lanes on I-84.
The I-84 widening project in Caldwell began in November 2023 and includes:
The speed limit in the construction zone is 55 miles per hour. Drivers should slow down, pay attention and follow all posted signs. Crews and heavy equipment will be working close to traffic.
Construction is expected to be finished in 2027. For more information and to sign up for email or text updates, visit itdprojects.idaho.gov/pages/i-84-corridor or call (208) 334-8002.
Drivers can also use Idaho 511 to check for real-time traffic impacts related to construction projects and road conditions statewide.
Interstate 84 will close overnight under the Karcher Interchange this Sunday and Monday to protect crews working on the Karcher Interchange Bridge. Detours will be in place.
Eastbound I-84 will close Sunday and westbound I-84 will close Monday. Closures will begin at 10 p.m. and end by 5 a.m. each night.
Motorists traveling eastbound on I-84 Sunday night will:
Motorists traveling westbound on I-84 Monday night will:
View the detour maps at itdprojects.idaho.gov/pages/karchericmaps.
This work will facilitate the addition of a third westbound lane on Karcher Road to accommodate higher traffic volumes. Other improvements for this project include:
These improvements will increase safety and traffic flow at the interchange. Construction is expected to be completed in fall 2025.
Stay informed regarding any schedule changes by signing up for email and text alerts regarding project updates. Text 84CORRIDOR to 1-866-483-8422 or visit itdprojects.idaho.gov/pages/karcheric. For questions, contact the project team at (208) 334-8002. Maps and other details can also be found on the project website.
