E 400 South Road Closed until late August

UPDATE: E 400 South Road in Jerome will continue to be closed until late August.

JEROME – The Idaho Transportation Department (ITD) will close E 400 South Road under I-84. Closures will allow crews to begin work on the E 400 South Road bridges as they widen I-84 between the South Jerome (Exit 168) and Twin Falls (Exit 173) Interchanges.

Traffic will be detoured to Golf Course Road, E Frontage Road, E 300 S and S 200 E.

Intermittent closures of E 400 South Road will continue throughout the duration of the I-84 South Jerome to Twin Falls project. Construction is anticipated to be completed 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.

Drivers should check 511.idaho.gov before traveling to plan for impacts from this project and other work zones.

I-84/US-93 Interchange Ramp Construction

UPDATE: Daytime and nighttime ramp closure on the I-84 Westbound ramp Aug. 29 – Sept. 11. Daytime ramp closure affords construction crews the ability to expedite ramp paving. Project remains on schedule to be completed mid-October.

TWIN FALLS – The Idaho Transportation Department (ITD) begins construction on the I-84 and US-93 interchange on and off-ramps at Exit 173 in August 2023 which is expected to last approximately two months. Located just north of Twin Falls, the project will resurface the ramps, upgrade signals, and construct a right turn lane for the westbound I-84 off-ramp.

The public can expect the following traffic impacts:

Lane reductions in place at the on and off-ramps south of I-84.
Temporary closures will occur at the on and off-ramps 8 p.m. – 5 a.m.
Motorists will drive on a gravel surface during the day on the westbound on and off-ramps.
Construction will be staggered and no more than one ramp will be closed at a time.
Each ramp closure is expected to last for approximately eight nights.
Motorists will need to use alternate routes when closures are in place.
Signs and possibly flaggers or a temporary signal will be in place to direct traffic.

Download map for alternate route descriptions at https://itd.idaho.gov/wp-content/uploads/2023/07/I84-US93-IC-RampClosures-1.pdf.

Travelers are reminded to check 511.idaho.gov for impacts to traffic from construction.

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.

I-84 Kasota westbound ramp closure July 23-28

KASOTA – The I-84 Kasota interchange westbound ramp will be closed starting July 23 at 9 p.m. to July 28 at 6 p.m. for construction. Motorists can expect reduced speeds and are encouraged to find alternate routes.

Due to the proximity of construction equipment to the westbound off-ramp, crews will need to temporarily close the ramp while performing concrete paving operations for safety reasons.

Travelers are reminded to check 511.idaho.gov for impacts to traffic from construction.

Construction on Main St. in Hailey begins July 25

HAILEY – The Idaho Transportation Department (ITD) will begin chip sealing Main St. in Hailey starting July 25 and expect to complete work in four weeks. Construction will start at milepost 115.6 Fox Acres Rd and end at milepost 117.3 McKercher Blvd. Chips placed during sealcoats have the potential to cause windshield damage, so drivers are cautioned to drive slow on loose chips and pay attention to flaggers and no-passing zones throughout the work area.

Chip sealing involves applying a thin film of heated asphalt liquid that is sprayed on a road surface, followed by placing small aggregate chips on top, and then compacted to adhere to the asphalt. The cost benefits of chip sealing help to extend the life of the pavement for many years.

Download image of Hailey Main St. at http://https://itd.idaho.gov/haily-main-st-image/

Drivers should check 511.idaho.gov before traveling to plan for impacts from this project and other work zones.

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.

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.

US-30 Heyburn Bridge repair resumes

SHOSHONE – Construction work resumed today on US-30 Heyburn Bridge over the Snake River. The epoxy overlay repair is expected to be completed by early June. Motorists can expect lane restrictions during construction and are advised to slow down.

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.

Shoshone railroad crossing closed for repairs May 16-18

SHOSHONE – 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.

Motorists 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