Beginning Saturday evening drivers should expect various nighttime detours through next week at the System Interchange in Pocatello as crew demolish old bridges on southbound Interstate 15.
Two detours are scheduled for two nights each.
Eastbound travelers on Interstate 86 trying to head north on Interstate 15 will be detoured to the Pocatello Creek Interchange the following nights:
- Saturday, Dec. 16, from 9 p.m. to 7:30 a.m.
- Sunday, Dec. 17, from 7:30 p.m. to 7:30 a.m.
Northbound travelers on I-15 trying to head westbound on I-86 will be detoured to the Northgate Interchange the following nights:
- Tuesday, Dec. 19, from 7:30 p.m. to 7:30 a.m.
- Wednesday, Dec. 20, from 7:30 p.m. to 7:30 a.m.
During these detours it is important that drivers follow posted speed limits. As work will continue through the winter drivers need to be particularly cautious around snowplows by giving them extra room in the work zone.
Ongoing construction at the System Interchange will improve safety and mobility while replacing bridges built in the 1960s. Work is expected to be complete in 2025. Those wishing to learn more about the project can visit the website: https://itdprojects.idaho.gov/pages/i-86i-15-system-interchange.
FORT HALL – The northbound off-ramp at the Fort Hall Interchange (Exit 80) is scheduled to close Monday at noon as crews finish paving the new off-ramp. Work is expected to be completed by 5 p.m.
The closure will last approximately four hours and is dependent on favorable weather conditions. During the closure traffic will be detoured to Exit 89.
The Fort Hall Interchange is undergoing a complete reconstruction to replace the outdated bridge and improve on- and off-ramps. The redesign also allows for the planned three lanes northbound and southbound on I-15. Those wishing to learn more about the project can visit https://itdprojects.idaho.gov/pages/i-15-fort-hall-interchange.
Beginning Monday and continuing through Wednesday, nighttime closures will be in place for a section of Interstate 15 and Interstate 86 at the System Interchange to allow crews to safely remove overhead signage.
One southbound lane will be closed on I-15, and the southbound ramp to I-86 will also be closed. Drivers looking to head west on I-86 will be detoured off the interstate at Northgate, west to State Highway 91, and then south to the Chubbuck Interchange. The closures will last from 9:30 p.m. until 5:30 a.m. each night.
Ongoing construction at the System Interchange will improve safety and mobility while replacing bridges built in the 1960s. Work is expected to be complete in 2025.
Motorists should exercise caution while travelling through the construction zone. Those wishing to receive email updates about the System Interchange project can sign up at https://lp.constantcontactpages.com/su/g9MMkN9.
Drivers can also check or download the 511 app for the last traffic conditions on all state highways and freeways.
POCATELLO – Aug. 28, 2023 | Southbound drivers on I-15 will be detoured through the interchange ramps at Fort Hall (Exit 80) tonight from 9:30 p.m. to 5 a.m. This will allow crews to operate safely as they work on the bridge beams over the roadway.
The Fort Hall Interchange is undergoing a complete reconstruction to replace the outdated bridge and improve on- and off-ramps. The redesign also allows for the planned three lanes northbound and southbound on I-15. Those wishing to learn more about the project can visit https://itdprojects.org/projects/forthall/
Motorists should exercise caution while travelling through the work zone as traffic patterns will continue to change over the next week to accommodate construction. Drivers can also check 511.idaho.gov or download the 511 app for the last traffic conditions on all state highways and freeways.
POCATELLO – Due to recent inclement weather, the daytime closure of the north-to-west ramp at the System Interchange will continue into Wednesday. The additional time is needed to complete placement of the steel girders for new bridges.
Traffic will be directed to the Northgate Interchange, adding approximately five minutes to travel times. Drivers will exit at Northgate, cross over I-15, and then proceed south on I-15. The detour will be in place starting at 5 a.m. until work is be completed. The same detour has been in place for the last 3 weekdays.
Girders are horizontal steel beams designed to support the bridge deck. As the beams are placed over the northbound to westbound ramp it is necessary to close the roadway beneath for the safety of the travelling public.
Ongoing construction at the System Interchange will improve safety and mobility while replacing bridges built in the 1960s. Work is expected to be complete in 2025.
Motorists should exercise additional caution while travelling through the construction zone. Those wishing to receive email updates about the System Interchange project can sign-up at this link – https://lp.constantcontactpages.com/su/g9MMkN9. Drivers can also check or download the 511 app for the last traffic conditions on all state highways and freeways.
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.
POCATELLO – Drivers on I-15 northbound heading west on I-86 toward Chubbuck will be detoured several days in the next week as crews install girders at the System Interchange. Ongoing construction at the System Interchange will improve safety and mobility while replacing bridges built in the 1960s.
Girders are horizontal steel beams designed to support the bridge deck. As the beams will be placed over the northbound to westbound ramp it is necessary to close the roadway beneath for the safety of the travelling public.
Traffic will be directed to the Northgate Interchange, adding approximately five minutes to travel times. Detours are expected to be in place from 5 a.m. to 8 p.m. the following days:
- Thursday, Aug. 17
- Monday, Aug. 21
- Tuesday, Aug. 22
Motorists should exercise additional caution while travelling through the construction zone. Those wishing to receive email updates about the System Interchange project can sign-up at this link – https://lp.constantcontactpages.com/su/g9MMkN9. Drivers can also check or download the 511 app for the last traffic conditions on all state highways and freeways.
The detour through the Northgate Interchange will exit at Northgate, cross over I-15, and then proceed south on I-15.
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.
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.
SHOSHONE – A Union Pacific Railroad company crew is working to reopen a railroad crossing in Shoshone that is temporarily closed due to a trucking accident that happened late Friday afternoon on May 12. Crews are currently onsite and expect to have the section of road along U.S. Route 26 at milepost 165.93 opened as soon as repairs are completed within the next few hours.
A truck pulling a trailer hooked part of a rail while traveling over the railroad crossing and caused damage to the rail and tore out several concrete slabs. There are no reported injuries.
Motorists can expect traffic delays around the Shoshone area and should find alternate routes. To receive the most current traffic updates, call 511 or sign up at 511.idaho.gov.
This incident does not impact the scheduled railroad crossing repair currently scheduled for next week starting May 16. 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.
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.
