Interstate 84 will be closed overnight between the Karcher/Midland and Northside interchanges on Monday, Sept. 16 through Thursday, Sept. 19. The closures will allow crews to safely remove the wooden forms that temporarily supported the new bridge deck this summer.
- Westbound I-84 will be closed for two nights – Sept. 16 and Sept. 17. Each night I-84 will be closed from 10 p.m. to 6 a.m.
- Eastbound I-84 will be closed for two nights – Sept. 18 and Sept. 19. Each night I-84 will be closed from 10 p.m. to 5 a.m.
During the four overnight closures, motorists will exit I-84 at Karcher/Midland or Northside and follow a detour along Karcher Road. Flaggers will direct traffic. View the detour map.
Lane restrictions and flaggers will also be in place on the Northside Boulevard between the ramps each night while crews begin to work on the new bridge.
The new Karcher Overpass is on schedule to re-open later this fall. Reconstruction of the Northside Interchange has begun and will continue through early 2021.
For more information about the reconstruction of I-84 in Canyon County, visit itdprojects.org/84Corridor. To receive construction updates; text 84corridor to 555888. “Drive Idaho,” ITD’s new podcast series on all things I-84 in Canyon County, is available for download on Spotify and Apple Podcast and other major podcast sharing sites.
UPDATE (June 11)
I-84 detours in Nampa have been extended due to equipment-related delays during the Karcher Overpass girder placement. A detour will be in place Tuesday and Wednesday nights (June 11 and 12) between the Karcher/Midland and Northside Boulevard interchanges.
- Eastbound I-84 will be closed overnight Tuesday, June 11. A detour will begin at 10 p.m. Tuesday and end at 5 a.m. Wednesday, June 12.
- Westbound I-84 will be closed overnight Wednesday, June 12. A detour will begin at 10 p.m. Wednesday and end at 6 a.m. Thursday, June 13.
Original Story (June 4)
ITD will require overnight closures on Interstate 84 in Nampa next Tuesday and Wednesday nights (June 10 and 11) to place girders on the new Karcher Road Overpass.
- Eastbound I-84 will be closed overnight Monday, June 10. A detour will begin at 10 p.m. Monday and end at 5 a.m. Tuesday, June 11.
- Westbound I-84 will be closed overnight Tuesday, June 11. A detour will begin at 10 p.m. Tuesday and end at 6 a.m. Wednesday, June 12.
Motorists will follow a detour route on Karcher Road both nights. See detour map below.
“ITD will place 10 steel girders over the two nights. Each girder is 136 feet long and weighs approximately 115,670 pounds,” said Alex Deduck, ITD Design/Construction Engineer. “This is no small operation and we appreciate the patience of the traveling public during the detour.”
ITD is replacing the Karcher Overpass to accommodate additional lanes on I-84. Construction to widen I-84 will begin later this summer.
For more information, visit itdprojects.org/84Corridor, text 84CORRIDOR to 22828 or listen to “Drive Idaho,” ITD’s new podcast series on I-84. Drive Idaho is available on Apple Podcasts, Spotify and other major podcast players.
The westbound on-ramps at the Franklin and Northside interchanges will be closed on several occasions next week while the Idaho Transportation Department rebuilds the interstate shoulders near the ramp.
The westbound I-84 on-ramp at Franklin Boulevard will be closed from 10 p.m. to 6 a.m. on Monday, Nov. 5 and Tuesday, Nov. 6. Motorists can use the ramps at the Garrity and Northside interchanges during the overnight closures.
The westbound on-ramp closure at Northside Boulevard will occur from 8 p.m. to 6 a.m. on Thursday, Nov. 8. Motorists will be directed to use the ramps at the Franklin and Karcher interchanges during the overnight closure.
ITD is widening the I-84 shoulders between the Karcher Road and Franklin Boulevard interchanges this fall in preparation for major construction next spring. Download the project fact sheet for details.
“By moving swiftly to prepare the shoulders this fall, we will be positioned to start the expansion work next year,” said ITD Program Manager Amy Schroeder. “This is the first step of the $330 million investment in I-84 in Canyon County over the next several years. The expansion is a statewide priority to improve safety, mobility and economic opportunity.”
To request email updates about construction activities, text 84CORRIDOR to 22828. For more information on the I-84 expansion project, visit itdprojects.org/i-84-karcher-to-franklin.
The Idaho Transportation Department will begin reconstructing and widening the shoulders of I-84 between the Karcher and Franklin Boulevard interchanges on Wednesday, Sept. 26. This is the first step of widening I-84 through Nampa.
All traffic lanes will remain open between 5 a.m. and 10 p.m. as crews will work primarily at night. Speeds will be reduced to 55 mph during the day and night. Traffic will be down to one lane in each direction during construction times. The work will continue until mid-November.
The newly reconstructed shoulders will be used to keep two lanes of traffic flowing in each direction when I-84 is widened to three lanes between Karcher Road and Franklin Boulevard starting next spring.
In 2019 and 2020, ITD will replace the Karcher Overpass, redesign and reconstruct the Northside Interchange, and rebuild the bridges over the railroad and Mason Creek. Improvements are expected to improve safety, capacity and traffic flow in Canyon County for many years.
A separate environmental study is underway to identify needed improvements between the city of Caldwell and the Karcher Interchange.
For more information on the I-84 expansion project, please visit itdprojects.org/i-84-karcher-to-franklin or text 84CORRIDOR to 22828.
A pavement rehabilitation project between Nampa and Marsing is scheduled to begin July 9 and conclude in late July/early August. Work will seal the pavement and extend the life of the roadway.
The first phase, a six-mile micro-seal from Nampa-Caldwell Boulevard to Farmway Road, will occur in the evening (10 pm – 5 am). Work is expected to conclude the week of July 16.
The second phase, an eight-mile chip-seal from Farmway to the Snake River Bridge at Marsing, will occur during daylight hours. Work is expected to conclude in late July.
During both phases, motorists can expect reduced speeds and up to 15-minute delays as traffic will be periodically reduced to one-lane with a pilot car guiding traffic. Where work is occurring, intersections will be controlled by flaggers with minimal delays. Motorists are encouraged to drive with caution through the work zone.
Schedules are subject to change. The contractor is permitted to work weekends. For up-to-date construction information, visit 511.idaho.gov.
Shoulder restrictions will be in place on Interstate 84 in Nampa at the Northside Boulevard interchange July 9-12. Crews will be driving test piles in the center median as part of early prep work for ITD’s Northside Interchange Replacement Project.
Pile driving will be done during the day; this work is noisy. No lane closures are anticipated, but drivers are urged to slow down and pay attention in the work zone. Crews will set up traffic control and a work zone the night of July 9 and are anticipated to be complete by the end of the week. Learn more at itd.idaho.gov/84corridor.
This work was originally scheduled to take place June 18-20. It was delayed due to wet ground conditions.
BOISE – The Idaho Transportation Department (ITD) has scheduled overnight lane restrictions on Interstate 84 in Nampa next week (Dec. 4-8) to complete geotechnical tests for upcoming improvements to the Interstate. This geotechnical work is one of the first steps of designing substantial improvements to I-84 between the Karcher Interchange and Franklin Boulevard Interchange.
Weather permitting, one lane of east- and westbound I-84 will be closed between 10 p.m. and 5 a.m. from Dec. 4 to Dec. 8.
ITD is planning to widen the interstate, redesign the Northside Interchange and replace the Karcher Overpass and bridges over the railroad and Mason Creek. Improvements are expected to improve safety, capacity and traffic flow in Canyon County for many years. Construction could begin as early as the fall of 2018.
For more information about the I-84, Franklin to Karcher project, visit the project webpage.
BOISE – The Idaho Transportation Board approved a resolution to allocate more than $100 million toward funding expansion in the Interstate 84 Caldwell to Nampa Corridor during the monthly meeting today (Thursday, Oct. 12) in Boise.
“The Transportation Board recognizes the need to address congestion in this corridor and are focusing funds here to make greater gains toward improving the corridor,” said Transportation Board Chairman Jerry Whitehead.
Funding sources include the Transportation Expansion and Congestion Mitigation (TECM) Program money for fiscal years 2018 and 2019 approved by this year’s legislature, 2018 General Fund Surplus, and several other state funding sources. These funds are still pending spending authorization from the 2018 legislature.
The money approved today also will be used to strengthen an application for $90 million in a federal grant for this corridor.
“Combining these new state dollars toward the I-84 expansion allows ITD to leverage our resources to address this crucial corridor, and potentially free up and leverage funds for other needs,” said Whitehead.
BOISE – Motorists can expect daytime lane restrictions, speed reductions and intermittent detours during construction this summer and fall.
The project includes repaving Idaho 55 between Pride Lane in Caldwell and Middleton Road in Nampa and improving the intersections at Farmway Road, Lake Avenue and Midway Road.
Each intersection will be widened to include five lanes on Idaho 55 and three lanes on local roads. ITD will install a new traffic signal at Farmway and Midway roads and replace the traffic signal at Lake Avenue.
“The best way to learn about traffic restrictions is to sign up for emails from ITD,” said ITD Construction Coordinator Merrill Sharp. “The work schedule may change based on factors such as weather and utility work. We will send regular updates about what motorists can expect each week.”
Map of construction zone for Idaho 55. Work begins Aug. 8.
During construction, lanes on ID-55 will be restricted during the day and the speed limit will be reduced. Traffic may be detoured around each intersection for several days.
The initial weeks of construction include widening the Farmway Road and Lake Avenue intersections and paving Idaho 55 between Pride Lane and Farmway Road.
“When complete, this project is expected to bring significant safety benefits for the 10,000 motorists who travel this stretch each day,” said Sharp. “While the road is under construction, however, we are asking motorists to plan ahead and expect delays.”
Construction details also will be posted to itd.idaho.gov/d3. To sign up for updates, text IDAHO55 to 22828 or email Jennifer.Gonzalez@itd.idaho.gov
BOISE – The Idaho Transportation Department will begin initial construction activities next week on a summer project to resurface deteriorated pavement on Interstate 84 between Nampa and Caldwell.
ITD will share details about construction activities and sequencing at a community open house Thursday, May 25 at the Hampton Inn at 5770 Franklin Road in Nampa. Community members are invited to come at their convenience from 11 a.m. to 1:30 p.m. or from 3 p.m. to 6:30 p.m.
ITD is using weekend and nighttime traffic control to minimize traffic impacts during the weekday commute.
During four weekends this summer, ITD will shift all I-84 traffic to one side of the interstate (eastbound or westbound) while crews work on the other side. On these four weekends, one lane of traffic will be open in both directions between Nampa and Caldwell from 7 p.m. Friday to 5 a.m. Monday. All lanes of I-84 will be open during the weekday.
Check out the project website here.
Final weekend dates will be scheduled based on factors such as traffic counts, weather predictions, equipment and materials availability, and the project schedule.
Community members may request email notification of the weekend dates by texting INTERSTATE84 to 22828. ITD will announce exact dates as soon as they are scheduled.
Other traffic impacts for the project will include occasional nighttime lane restrictions, shoulder closures and speed-limit reductions. The project includes resurfacing I-84, the Northside Boulevard interchange ramps and two ramps at the Franklin Boulevard Interchange. Guardrails will be improved throughout the project area.
Idaho Materials Construction is the contractor for this $9.5 million project.
