Variable speed limit signs in place in the I-84 South Jerome to Twin Falls work zone to improve safety

JEROME – The Idaho Transportation Department (ITD) has installed variable speed limit signs to improve safety as crews widen I-84 between the South Jerome and Twin Falls Interchanges. The new signs are controlled remotely, allowing ITD to lower speeds when crews are working near traffic.

The current posted speed limit in the work zone is 70 mph. When crews are working near traffic, ITD will lower the speed limit, and a flashing beacon will notify drivers that speed limits have been lowered. When crews are not as close to traffic, ITD will raise the speed limits to 70 mph.

Variable speeds have been successfully implemented in other work zones, including the one on I-84 between Caldwell and Nampa. Research shows that variable speed limits reduce crashes, reduce travel times, and improve safety.

The signs will be removed when construction is complete in late fall of 2025.

Details about the I-84 South Jerome to Twin Falls project are available at ITDProjects.org/84jerometotwin or by texting 84JTF to 1-866-483-8422.

Rolling Closures on I-84 from South Jerome to Twin Falls through mid-July

The Idaho Transportation Department is continuing work on I-84 between the South Jerome (Exit 168) and Twin Falls (Exit 173) Interchanges. Crews are blasting rock in the median of I-84 on weekday afternoons through mid-July.

What you need to know:

Rolling closures will occur on I-84 through mid-July.
Delays will range from 20-30 minutes.

A pilot car will slow motorists down several miles before the blast area to allow crews to blast rock and clean up debris.

Details about the I-84 South Jerome to Twin Falls project are available at ITDProjects.org/84jerometotwin or by texting 84JTF to 1-866-483-8422.

Idaho Transportation Department seeks feedback on draft seven-year transportation plan

SHOSHONE — The Idaho Transportation Department (ITD) is seeking feedback on the just-released draft Idaho Transportation Investment Program (ITIP). The 2024-2030 ITIP outlines the state’s transportation priorities and guides investment decisions for the next seven years. ITD encourages everyone to review the draft and provide comments from July 1-31.

Transportation projects included in the draft ITIP range from large-scale interstate improvements to smaller projects like the installation of a new guardrail. Projects are located throughout Idaho’s 44 counties and involve all modes of transportation. Project selection is determined through technical data, as well as input from local officials and residents.

To review the complete draft plan visit itd.idaho.gov/funding to view an interactive map that allows users to learn about projects in their local area as well as submit a comment through the portal.

Local projects in the program include:

A project to reconstruct the roadway on SH-75 from Saddle Road in Ketchum north to North Fork Campground Road.
Bridge replacements on US-30, Bickell Railroad Overpass at milepost 231.9 near Murtaugh, and SH-75, Yankee Fork of Salmon Road at milepost 202.48 downriver from Stanley.
A reconstruction and realignment safety project on SH-75 at Torrey’s Hole RV access to Slate Creek that includes new pavement surface, riverbank stabilization, culvert installation, and installing guardrail.
A safety and restoration project along US-93 from Hot Springs Road to Fish Creek Road north of Carey to restore deficient pavement, repair frost damage and apply a seal coat to provide a new roadway surface.
Road widening with four lanes on US-93 from Jerome Butte, SH-25, north to R Canal.

Comments will be taken from July 1-31 and can be emailed to itipcomments@itd.idaho.gov or mailed to:

ITIP – Comments
Attn: Office of Communication
P.O. Box 7129
Boise, ID 83707

Paper copies of the ITIP will be provided upon request by contacting the Idaho Transportation Department (208) 334-8119.

All comments will be reviewed and incorporated into the ITIP where appropriate. Responses will be sent in September once the comment period has ended.

After approval by the Idaho Transportation Board in September, the ITIP will then be submitted to the Federal Highway Administration, the Federal Transit Administration, and the Environmental Protection Agency in October. Once finalized, ITD staff across the state will begin scoping new projects.

Public input is crucial in ensuring that the ITIP reflects the needs and desires of Idaho’s communities.

Lane restrictions June 20-25 for Perrine Bridge and Glenns Ferry Bridges

TWIN FALLS – Lane restrictions on Perrine Bridge and Glenns Ferry Bridges are scheduled for June 20-25. Drivers can expect traffic delays across the bridges while Idaho Transportation Department (ITD) crews conduct routine bridge inspections.

Glenns Ferry Bridges

June 20-23 from 7 a.m. to 7 p.m.

Traffic on both east- and westbound bridges at milepost 121.6 on Interstate 84 will be reduced to one lane in either direction when crews begin work on the eastbound bridge with an 11-ft width lane restriction starting Tuesday, June 20 from 7 a.m. to 7 p.m. Westbound right-lane closure will begin when eastbound work is completed.

Perrine Bridge

June 24-25 from 5 a.m. to 3 p.m.

Traffic will be reduced to one lane in either direction while crews move from the south end of the bridge to the north end with an 11-ft width lane restriction:

– Southbound right lane closure: Saturday, June 24 from 5 a.m. to 3 p.m.

– Northbound right lane closure: Sunday, June 25 from 5 a.m. to 3 p.m.

“These special bridge inspections only take a couple of days to accomplish, while routine inspections take a week or more and both are important to ensure the safety and longevity of our state bridges,” said ITD Bridge Inspector Amy Bower.

ITD, Idaho State Police, and local law enforcement caution motorists to slow down and pay attention when driving in work zones, where increased speeding fines and other penalties apply. Motorists are encouraged to plan ahead and dial 5-1-1 or visit 511.idaho.gov for information on the state highway or interstate system.

UPDATE: Commuter traffic in-town detour – Shoshone railroad closed for repairs May 16-18

SHOSHONE – UPDATE – Commuter motorists will be detoured in-town around the Shoshone railroad construction zone while trucks will be detoured onto to highways.

The Idaho Transportation Department (ITD) asks drivers in the Shoshone area to plan ahead, as a section of U.S. Route 26 at milepost 165.93 will be closed for railroad repair May 16-18.

The crossing will be closed to motorists starting on Tuesday, May 16 at 6 a.m. and will reopen when work is complete by approximately 6 p.m. on Thursday, May 18. To receive the most current traffic updates, call 511 or sign up at 511.idaho.gov.

Union Pacific Railroad Company will conduct repairs to address the aging infrastructure and includes removing old steel tracks and replacing with new steel tracks, concrete slabs, and asphalt.

Commuter motorists will be detoured in-town around the Shoshone railroad construction zone. All commercial trucks traveling northbound on U.S. Route 93 wishing to proceed toward Shoshone will be detoured west on U.S. Route 26. Those traveling southbound on State Highway 75 wishing to proceed toward Shoshone will be detoured west on U.S. Route 20. The closure and detour will remain for approximately three days until the railroad crossing repairs are completed.

ITD, Idaho State Police, and local law enforcement caution motorists to slow down and pay attention when driving in work zones, where increased speeding fines and other penalties apply. Motorists are encouraged to plan ahead and dial 5-1-1 or visit 511.idaho.gov for information on the state highway or interstate system.

ITD District 4 (South-Central Idaho) 2023 Spring/Summer Construction Projects

*I-84: South Jerome Interchange to Twin Falls Interchange
County: Jerome/Twin Falls
Project: Widen Interstate 84 (I-84) between the South Jerome Interchange (Exit 168) and the Twin Falls Interchange (Exit 173) to increase traffic capacity and improve safety.
*This projected is funded with Transportation Expansion and Congestion Mitigation (TECM) funds as part of the Leading Idaho TECM Program. The program allows ITD to accelerate project timelines to address rapid growth and build critical infrastructure that would otherwise take many years to finance and build.
Impact: Traffic will be reduced to one lane in each direction at night with occasional daytime lane restrictions as necessary. Rolling closures will occur this spring/summer due to rock blasting in the median.
Started: April 2023
Expected Completion: Fall 2025

US-93: Perrine Bridge Repair
County: Twin Falls
Project: Planned maintenance to ensure bridge stays structurally sound. Maintenance repairs include bolt replacement, sidewalk repairs, conduit, and baluster repairs.
Impact: Intermittent lane closures are expected to accomplish the work and traffic delays across the bridge are to be expected during those times. ITD is implementing new mitigation efforts specifically designed to reduce traffic congestion. Daily traffic updates will be posted, and motorists are encouraged to plan ahead and sign up to receive up-to-date traffic notices directly by phone/email/text. Dial 5-1-1 or visit 511.idaho.gov to receive traffic updates on the state highway or interstate system.
Start: May 2023
Expected Completion: Spring 2024

I-84 & SH-25: Bridge Repair West Jerome
County: Jerome
Project: This project involves repairs to the concrete bridge deck, longitudinal bridge joint and transverse bridge joints, as well as various other bridge surfaces and approaches.
Impact: Traffic will be reduced to one lane in each direction on State Highway 25 (SH-25) with intermittent lane closures on I-84.
Started: March 2023
Expected Completion: Summer 2023

I-84 & SH-50: Kimberly Interchange
County: Cassia
Project: Construction of a new diamond interchange including a new overpass bridge to improve the overall safety and functionality of the interchange. The design will add turn lanes and signals at the existing ramps. The design will also provide pedestrian and bicycle facilities within the project limits including a sidewalk across the bridge.
Impact: The first stage will consist of building temporary on and off-ramps at I-84 so traffic can be diverted onto the temporary ramps during construction of the permanent ramps. Traffic will then be reduced to two lanes across the bridge structure during demolition and construction of the other half. Lanes will be narrowed to 11-12’ width on State Highway (SH-50). Traffic will be guided through the work zones using barrels and flaggers. Access to the on and off-ramps and the Travelers Oasis will remain open. There will be frequent changes to the traffic pattern so please remain vigilant. During demolition of the bridge, traffic on I-84 will shift back and forth using crossovers and reduced to one lane each direction and reduced speeds will be in effect.
Started: April 2023
Expected Completion: Summer 2024

I-84: Kasota Interchange to Burley Interchange
County: Cassia
Project: Westbound construction involves milling off existing roadway surface and replacing with new concrete. Eastbound construction starts 2024.
Impact: Westbound traffic will be crossed over to the eastbound lanes while the westbound lanes are closed for construction. Traffic will be reduced to a single lane in each direction with reduced speeds.
Started: April 2023
Expected Completion: Westbound Spring-Summer 2023

I-84: Declo Port of Entry (POE) Eastbound
County: Cassia
Project: Construct a new eastbound POE facility.
Impact: Most construction of the new facility will occur away from traffic with minor impacts to motorists with shoulder and single lane closures when the on and off-ramps are tied into the interstate. Existing eastbound Cotterel POE will be demolished once new POE is completed.
Started: Spring 2022
Expected Completion: Fall 2024

SH-46: Big Wood River Bridge
County: Gooding
Project: Replace Big Wood River Bridge north of Gooding
Impact: Traffic will be driving on a gravel surface on the north half of the project until paving can be completed. Reduced speeds are in effect and flaggers will be used to direct traffic through the work zone during working hours.
Started: April 2023
Expected Completion: June 2023

Intersection East 2000 South: Gooding
County: Gooding
Project: Widen State Highway (SH-46) and add a left turn lane in each direction.
Impact: Single lane closures and reduced speeds with flaggers during construction.
Start: June 2023
Expected Completion: Late Summer 2023

US-93 & I-84 Interchange Ramps
County: Jerome
Project: This project involves rehabilitation of the roadway with a mill-and-overlay of eastbound ramps and reconstruction of the westbound ramps.
Impact: Lane reductions will be in place and some intermittent closures of the 1-84 on- and off-ramps will occur. Closures are expected at night.
Start: Summer 2023
Expected Completion: Late Fall 2023

District 4 Seal Coat Pavement Preservation Projects
1. I-84 (milepost 184.34-194.2)
2. US-93: North and Southbound (milepost 57.47 – 59.5)
3. US-93: North and Southbound (milepost 68.83-71.57)
4. US-93: Marley Road to Jim Byrne Slough (milepost 117.5-182.7)
5. US-30 (milepost 253.22-256.97)
6. SH-75: Bellevue to Hailey (milepost 115.6-117.3)
Project: Seal coat preservation begins by applying a thin layer of asphalt/oil and then a cover coat of gravel on the current roadway to seal road cracks, thereby preserving the existing highway surface.
Impact: Few impacts to traffic are anticipated. Traffic may be reduced to a single lane with reduced speeds.
Start: Early Summer
Expected Completion: Late Summer

Construction is underway to widen I-84 between South Jerome and Twin Falls interchanges

JEROME – As part of Governor Brad Little’s Leading Idaho Transportation initiative, the Idaho Transportation Department (ITD) has begun a project to widen I-84 between the South Jerome Interchange (Exit 168) and the Twin Falls Interchange (Exit 173). Construction begins this week on this 2.5-year project.

I-84 serves as a primary interstate route, and traffic counts are expected to increase substantially over the next 20 years. The existing interstate will not be able to accommodate anticipated future traffic volumes. These improvements will increase capacity and improve safety on I-84 to serve South-central Idaho for years to come.

In 2023, motorists should expect:

I-84 will be restricted to one lane in each direction at night. Occasional daytime lane restrictions may be necessary.
- Rolling closures on I-84 will occur this spring/summer for blasting rock in the median.
Traffic shifts will be used throughout construction.
The speed limit on I-84 will be reduced.
400 South Road will be closed intermittently.

Funding for this project comes from the Leading Idaho TECM Program. The program allows ITD to address rapid growth and build critical infrastructure today that would otherwise take many years to fund and build. Concrete Placing Company is the contractor for this $92.9 million project.

Construction is anticipated to be completed in late fall of 2025. Those who are interested in learning more about the project are invited to visit the project website at itdprojects.org/84jerometotwin or call (208) 391-3735.

Information in Spanish can be found on the project website or by calling (208) 398-3696.

Extreme Cold May Result in Additional Road Closures

RIGBY – As extreme cold continues in East Idaho, the Idaho Transportation Department is asking motorists to plan ahead and check the 511.idaho.gov website before hitting the roads. “It’s vitally important that drivers are paying close attention to current conditions,” said ITD Public Information Officer Justin Smith. “We always try to keep roads open, but when conditions become unsafe for our plow drivers we have to close the roads to protect everyone.”

Smith also noted that drivers checking the 511 website or using the newly updated version of the 511 app might see a webcam of one portion of the road that looks fine, but other sections may not be safe. “With the changes in altitude at places like the Ashton Hill conditions can be vastly different from Idaho Falls or Henry’s Lake.”

Those changing conditions can also be dangerous. The National Weather Service announced over the weekend that wind chills are dropping to -15°F to -40°F. At -30°F exposed skin can freeze in as little as 10 minutes. That means motorists must be sure to have their vehicle serviced. A poorly maintained vehicle can leave someone stranded.

AAA notes (https://exchange.aaa.com/safety/driving-advice/winter-driving-tips/) several other precautions motorists should take:

Keep a bundle of cold-weather gear in your car, such as extra food and water, warm clothing (including additional clothing for every passenger), a flashlight, a glass scraper, blankets, medications, and more.
Make certain your tires are properly inflated and have plenty of tread.
Keep at least half a tank of fuel in your vehicle at all times.
Never warm up a vehicle in an enclosed area, such as a garage.
Do not use cruise control when driving on any slippery surface, such as on ice and snow.
Stay home and only go out if necessary. Even if you can drive well in bad weather, it’s better to avoid taking unnecessary risks by venturing out.

It is especially important to consider children, the disabled, and elderly who may be passengers. “Sometimes we forget that children and vulnerable adults do not have the ability to maintain body temperature. Kids like to go out without enough cold weather protection, but parents should ensure there are coats, hats, gloves, and other necessities are available if needed,” Smith said.

This winter has become more challenging as District 6 has lost a number of plow drivers leaving 17 vacant positions open. “We do have a few relief plow drivers to help with the vacancies, but it’s not enough to take the pressure off,” said Bryan Young. “This number includes employees who are retiring or are out for extended health reasons. We do have a few new hires, but they will not be 100% this winter.”

The vacant positions may make it necessary to close roads sooner than motorists may be used to. When fully staffed multiple plow drivers can work the same highway from both directions. However, with fewer plows on the road it may not be possible to keep a road open. This is especially the case where snowfall is heavy and strong winds are blowing.

ITD has also been dealing with numerous plow strikes and drivers making dangerous maneuvers around plows. So far 13 plows have been hit this season. Most of those incidents were related to drivers going too fast for conditions and passing plows on the right.

I-15/I-86 Detour at Pocatello Ends

POCATELLO – The northwest ramp from I-15 to I-86 reopened this morning at the System Interchange in Pocatello. Traffic heading from I-15 toward Chubbuck and American Falls is no longer detoured through the Northgate Interchange. The detour was needed to lower the ramp so new bridges can be built for I-15 through the System Interchange.

Motorists should carefully follow signs and posted speed limits while travelling through the construction area. With crews working day and night it is especially important that drivers be alert and proceed safely through the work area. Drivers are encouraged to check https://511.idaho.gov or the 511 app to keep track of road conditions and construction. Project details are available on ITD’s projects website — https://itdprojects.org/projects/i-86-i-15-system-interchange/

This project is partially funded with Transportation Expansion and Congestion Mitigation (TECM) funds as part of Governor Little’s Leading Idaho initiative. The program allows ITD to accelerate project timelines to address rapid growth and build critical infrastructure today that would otherwise take many years to fund and build.

Blasting Operations to Begin July 15 in Ashton

ASHTON – As part of the construction work at the intersection of US-20 and SH-47 in Ashton, the contractor will be blasting rock under the roadway. The blasting operation will occur periodically between July 15 and July 19 in the closed portion of the roadway.

There will be traffic control flaggers on US-20 and SH-47 to manage traffic during these operations.

Motorists should anticipate longer than normal delays during this time. ITD asks all drivers to watch for equipment and workers, follow all traffic signs and flaggers, and reduce speeds to posted limits. It is essential during this operation that motorists keep themselves and workers safe.

The US-20 / SH-47 intersection project consists of a stoplight, new curb and sidewalks, storm sewer work, and pavement. Work is scheduled to be completed in October.

Questions can be directed to HK Contractors at (208) 523-6600.