Lower speed limits take effect Thursday on SH-48 east of Rigby

ITD and City of Rigby crews work roadside on SH-48 in preparation for furthering a 45 mph speed zone east of Rigby that takes effect next week.

RIGBY— The Idaho Transportation Department (ITD) on Thursday will be extending the limits of a lower 45 mph speed limit zone on SH-48 about two miles east of US-20 to Road 4200 East.

ITD crews along with the city of Rigby are placing multiple new signs, including driver speed feedback signs, all in an effort to improve safety along this stretch of SH-48. Motorists should watch for the updated signs and orange caution flags.

These changes are a result of several working group meetings conducted over the past months with the ITD Chief Operations Officer and district managers, Jefferson County Commissioners, the city of Rigby and local legislators. The group is focused on enhancing traffic relief, long-term planning discussions and near-term highway solutions for the local community.

Road conditions and status for SH-48 and all major Idaho roads can be found by using the Idaho 511 app, or visiting 511.idaho.gov.

ITD partnering with Jefferson County to make immediate and future traffic improvements

RIGBY—The Idaho Transportation Department (ITD) chief operations officer with district managers joined local state legislators and Jefferson County commissioners in November and December meetings as a working group to enhance traffic relief discussions to bring new improvements to local communities over the next ten years.

Amidst increasing traffic and growth statewide, ITD has been meeting with interested local officials to share long-range regional planning concepts and discuss the near-term highway solutions to partner on addressing traffic and safety concerns. At the recent council meetings, the working group outlined how ITD and county staff will team together to add a signal on SH-48 at Road 4000 East within two years to address school traffic congestion issues. The group agreed on the benefits of extending the limits of a lower 45 mph speed limit zone on SH-48 about two miles east of US-20 to Road 4200 East, in coordination with law enforcement to enhance safety for drivers approaching the new signal.

The signal installation design will be led by Jefferson County in partnership with city, ITD and school district officials. It will be jointly funded and should be ready for starting construction in the fall of 2025 or by spring 2026. Engineers expect the new signal to operate similar to the SH-48 and 3800 East signal near Rigby Middle School.

“I’m impressed with the quick progress in our recent meetings due to the strong local partnerships with our ITD District 6 team,” said ITD Chief Operations Officer Dan McElhinney. “We appreciated the leadership of Representatives Furniss and Raymond who joined us with county commissioners to define concerns and discuss solutions, looking ahead for timely traffic improvements to help our communities.”

Other discussion topics included regional needs for future traffic congestion relief on SH-48, improvements on US-20 at County Line Road and on US-20 a possible overcrossing at Road 200 as the region continues to grow in population. These planning discussions will continue in monthly meetings with ITD and local partners in 2025.

Southbound I-15 traffic being detoured around closed Stoddard Creek bridge

Snowy I-15 southbound roadway with road closure blockade signs and lights in place at Exit 184, Stoddard Creek.

DUBOIS—Southbound travelers on Interstate 15 are being detoured around the Stoddard Creek Bridge at Exit 184, which has been closed due to a damaged and deteriorating road surface. Interstate traffic is being slowed to 45 mph and directed onto the ramps so drivers can proceed over and through without stopping.

The Idaho Transportation Department has closed W. Camas Creek Road under the bridge to allow for this detour. Operations engineers and facilities managers are monitoring the path to ensure smooth passage for vehicles and semis.

Major improvements to the Stoddard Creek Bridge were already planned for early next spring. With the bridge condition worsening substantially, these have been advanced to start in January. Repairs are expected to take several months, with this closure in place until spring.

The Idaho Transportation Department Dubois maintenance crew and other operations personnel are monitoring the closure daily. Traffic control devices are also weighted and placed to avoid being covered by snow removal efforts. ITD will make necessary changes and efforts to keep traffic in this area moving safely through the winter.

Road updates and status can be found at 511.idaho.gov or on the Idaho 511 app.

ITD is on the job plowing snow: Here’s what you should know

Snowplow on SH-28 plowing snow and creating a plume to the side.

EAST IDAHO— With snowy conditions foreseeably here to stay, the Idaho Transportation Department is committed to keeping motorists safe. In eastern Idaho, maintenance crews are now working around the clock shifts from the Utah to Montana state lines as needed.

These 17 crews across eastern Idaho keep more than 4,300 lane miles of state highways and interstates as clear as possible all winter long. Plowing that amount of roadway means patience and caution from the public are important.

“We have high confidence in our plow teams,” ITD Operations Engineer Jeremie Pettingill said. “Winter driving does take some planning though. Slow down and be aware. Know that we’re prepared and doing the very best we can.”

ITD aims to keep roads bare 70% of the time during storms. The wind conditions in east Idaho often make that unrealistic and are the primary cause of road closures through the winter.

Closures are put in place only when conditions are unsafe. Roads are also only closed as long as necessary. Closures allow operators to be more efficient getting snow cleaned up, braving the elements as they do.

ITD reminds motorists across east Idaho to use common safe winter driving practices:

Brush and scrape your windows before driving. Starting the defrost in your vehicle well before you leave is very helpful.
Slow way down! Speed limits are based on ideal conditions and aren’t appropriate during winter weather.
Maintain substantial distance between yourself and other drivers—don’t follow closely.
Stay calm and don’t make sudden wheel movements in icy conditions.
Don’t use cruise control in the winter.
Obey posted road closure signs and lights—finding a back way to access closed roads is dangerous and delays plow work to get them re-opened! Remember roads are only closed for good reason. Unexpected traffic and crashes significantly delay getting the road re-opened.
Keep a winter emergency kit in your vehicle with supplies like water, lights, warm clothes and blankets, etc.
When you see plows, give them room to work. That means leaving plenty of following distance, not crowding them and letting them lead the way. Last winter, 17 plow strike occurred across Idaho, most often due to drivers attempting to pass.
Know before you go by checking conditions at 511.idaho.gov or on the Idaho 511 app. Cameras can show you exactly what to expect on certain roadways, and conditions are updated multiple times a day.

ITD and ISP to host winter driving classes

Photograph showing class for winter driver safety

EASTERN IDAHO – The Idaho Transportation Department (ITD), Idaho State Police (ISP), as well as Chubbuck and Bonneville County Police Departments are teaming up to provide free, informative and engaging winter driving safety classes through November as the region prepares for icy roads and adverse weather.

While these courses are beneficial for drivers of all ages and skill levels, they are especially geared to young drivers and anyone new to the area who may be preparing for their first winter driving season.

The course will be taught by ISP Troopers, local law enforcement officers and ITD Operators, covering a wide range of topics from proper vehicle preparation, equipment, road conditions, driving tips, crashes, and snowplow safety.

Participants who attend the course will receive a certificate of completion and be eligible for a 10% discount on a set of new snow tires at participating Les Schwab Tires locations.

THURSDAY, NOVEMBER 7

7:00 p.m. – 8:30 p.m.

Rocky Mt, Middle School Auditorium

3443 N. Ammon Rd.

Idaho Falls, ID

TUESDAY, NOVEMBER 12

5:30 p.m. – 6:30 p.m.

Chubbuck City Hall

290 East Linden Ave.

Chubbuck, ID

Seating is limited and classes are filling up quickly! Attendees should register online-click here for the Idaho Falls class or click here for the Chubbuck class to reserve a seat. Additional courses may be scheduled at a later date.

Final full closure for US-20 Rexburg interchange starts tomorrow

US-20 Exit 333 at Rexburg, road closed sign in place with construction equipment surrounding

REXBURG— U.S. Highway 20 Exit 333 for Main Street in Rexburg will fully close beginning tomorrow. This closure allows crews to complete final paving operations and marks the last time Rexburg exits are expected to close for the construction of new diverging diamond interchanges. Exit 333 will be re-opened as soon as paving and striping work is finished, on or before October 29.

“Our goal was to have these projects completed by late fall and that really is going to happen,” Project Manager Conner Huffaker said. “We’re so grateful to the Rexburg community for their support and patience.”

After re-opening, construction efforts at Exit 333 will be largely off the roadway, with only limited lane closures from that point on. Motorists can expect some interruptions as work continues toward final completion, though they will be short lived.

With construction efforts winding down, motorists will also see improvements to timing for the traffic signals at both Exits 332 and 333. Engineers will make signal adjustments until the movement of the new interchanges is ideal for typical traffic flow.

Since March, the Idaho Transportation Department and contractor partners have been working to complete the massive undertaking of rebuilding Exits 332 and 333 in Rexburg. Both exits are now operating diverging diamond interchanges that are expected to resolve former traffic concerns in the Rexburg area.

Cold weather paving in Idaho: how we do it and why it works

Paving, compacting and temperature testing occurring in Idaho with Fall leaves in the background.

The Idaho Transportation Department is overseeing more road construction than ever before. This work continues as temperatures are cooling and the ice and snow make their all-to-soon appearance. How does ITD successfully pave a road and have one of the shortest summer seasons in the country? Materials engineering and testing actually do make it possible.

Before asphalt pavement is ever laid, the surface where it needs to go is sprayed with a binder that will make it stick. This is called tack, a liquid made of oil and water. Tack must naturally break apart to become adhesive, separating as it lays across the surface where paving will happen. As it breaks, tack turns from a brown color to darker black, indicating that breaking has happened, and asphalt can be laid on top.

On the warmest of Idaho summer days, tack breaks in about ten minutes. When it’s colder, it can take hours. Still, with the right process, tack will break. ITD just knows it takes longer and plans accordingly.

Hot mixed asphalt is combined in a hot plant that can heat the components—crushed gravel and oil—to more than 300 degrees. This is dumped from a truck and spread using a paver, then compacted with a roller. ITD inspectors are on site anytime the contractor is, testing temperatures, compaction and much more to ensure that taxpayers get their money’s worth out of each project.

For quality compaction on state highways and interstates, the process must occur between 240-280 degrees. On warm summer days, asphalt must sit for a while after being spread before it is cool enough to be compacted. On colder days, asphalt loads hauled from hot plants are covered in transit to retain the most amount of heat. The asphalt will then be spread, and the roller follows closely behind to compact immediately before the material has cooled too much. All century-old, effective tricks of the trade in action.

“We don’t loosen up our requirements just because it gets cold,” ITD Materials Engineering Manager Mark Hayes said. “All contractors are held to the same quality materials standards and only operate when there are ways to do it right.”

Most of Idaho’s state highways run through rural areas, far removed from permanent hot plant locations. This fall, paving is occurring on State Highway 28 between Leadore and Salmon. The closest permanent hot plant sits in Idaho Falls, nearly four hours away. Enter the mobile hot plant erected by contractors at the ITD Leadore gravel pit, less than five miles from where the asphalt needs to be delivered.

In Rexburg, where paving is still occurring on multiple interchanges off U.S. Highway 20, the contractor’s permanent hot plant lies in Teton, less than ten miles away. Planning to have these proximities ensures that temperature requirements are met, and paving can be done successfully both earlier and later in the year.

Of course, there comes a cold enough ambient daily temperature that means paving operations are simply no longer viable. ITD requires that the temperature be 40 degrees and rising for paving to happen, which can result in fewer hours to pave during the fall but still allows a window of work. The right equipment, materials, planning, testing and operating tricks of the trade make it so ITD and contractors can pave with quality even when it is colder outside.

When you see paving equipment and a compacting roller working close together while your heater is on inside your car, know that ITD and the industry have the brief Idaho summers and cold Idaho temperatures on tap. That new road surface will meet the same metrics as summer paving, ensuring it lasts for many years to come.

US-20 South Rexburg Exit to close starting Monday

Road closed signs at Exit 332 on US-20 in Rexburg.

REXBURG—U.S. Highway 20 Exit 332 for University Boulevard in Rexburg will fully close starting Monday, September 30, for crews to complete final paving and striping operations. Work is not expected to take more than a few days, and the exit will be re-opened as soon as it is completed.

This closure was purposefully scheduled during Madison School District’s harvest break to least affect traffic. Detours include Exit 328 (Thornton), Exit 333 (Main Street) and Exit 337 (North Rexburg). After re-opening next week, construction work at Exit 332 will be minimal and off the roadway.

Construction does continue at Exit 333, with one lane running in each direction. These projects to create safe and efficient diverging diamond interchanges at both Rexburg exits are still expected to be complete later this fall.

For more information about this project, visit https://itdprojects.idaho.gov/pages/us20rexburg. Drivers can also use the 511 app to see current status on this and other Idaho projects.

The Unhailed, Underappreciated Emergency Responders

SH-33 with road blockades and a pickup truck following an accident

People see the Idaho Transportation Department logo and seem to have an automatic response, for better or worse. They’re the ones causing construction delays, needing to get the snow off the road already, or taking too long whatever they’re doing. They don’t do anything right and never will. Their flashing orange lights could just as easily be the mailman.

It’s not likely that you think of ITD as being the ones to first call 911, the ones to keep you from freezing or assess injury at the side of the road. They’re not your emergency responders. But then again, yes, they are.

All across Idaho, there is no one that travels the over 12,000 lane miles of highways and interstates more continually than the men and women behind the blue and orange ITD logo. The likelihood that they’ll be there when a crash or emergency occurs is higher than anyone else. The police and ambulance have to be called in. ITD is already there.

When two crop duster planes collided and crashed alongside US-26 near Arco, an ITD striping crew was there, becoming the first to assess the pilots. When a motorcycle crash occurred on Interstate 15 near Dubois, part of the ITD maintenance crew was there, already working the roads they consider their own. The story is similar in the case of many incidents across Idaho over the years.

“We spend so much time on the road, that nine times out of ten, we’re the first on scene when anything happens,” Idaho Falls area foreman Jared Loosli said. “And we’re not just going to pass by and leave.”

In the instance of a recent multi-fatality crash near the I-15/ US-20 interchange, Loosli and his crew were called in immediately to assist the Idaho State Police. Most people don’t realize that when state troopers get called out, ITD is almost always called out too.

“We have great foremen for ITD here in Idaho,” ISP Lieutenant Marvin Crane said. “We have personal relationships with them, and they never say they can’t do something. They’re always asking, ‘What do you need?’ and getting things done within minutes.”

“It does affect you,” Loosli stated, also noting that the worst incident he’s ever been a part of happened to one of his own guys.

“The first thing I’m thinking about is my crew,” Ashton/ Island Park foreman Ryan Wright added. “At that point, there are no traffic devices, there’s not time and it’s not the priority. It’s just our guy in the middle of everything trying to help.”

Very recently, Driggs/ St. Anthony Foreman Lucas Richins witnessed what all ITD foremen prioritize and fear the most. An ITD maintenance worker was hit after a distracted driver ran through a roadblock while powerline repair work was being done on SH-33.

So not only are ITD employees unhailed first responders, they’re also the underappreciated workers putting their lives on the line every day. Earlier this year, three of Loosli’s crew were removing hazards from I-15 when a semi grazed the side of their vehicle, damaging the rear end and taking off the driver’s side mirror. A mere two inches would’ve changed the outcome of that incident entirely.

What is it that keeps the guys in yellow working in these risky situations and responding to emergencies, knowing full well that public opinion is often negative and even rude?

“These are small communities,” Mackay/ Challis foreman Jeremy Johnson noted. “When we go out on a call, it could very well be our own friends and families. We’re thinking of keeping them safe in everything we do.”

“When I’m doing something myself, I can see the progress and know that I’m making things safer for everyone,” Wright shared. “I actually love to go out plowing. I love what I do.”

“It’s really a mentality,” Loosli says. “You either have it or you don’t honestly. People complain because they drive by and see four guys standing around. But we know why, we see the bigger picture and the process. The 30 seconds people see isn’t the story of the whole 10-hour day at all.”

“On instinct, I’m thinking about what I could have done, how could this have been prevented?” Richins said. “But then the biggest thought becomes frustration. We’re here trying to help and to serve. When we close a road, the whole point is to keep people safe. Driver awareness is so negligent that it really is frustrating. It’s dangerous.”

Adding to the dangerous nature of the job is the reality that the ITD fleet are not considered emergency vehicles, and ITD signage is too often not respected. Multiple layers of striped road blockades or orange traffic barrels somehow don’t always keep people out.

“We don’t enjoy closing a road or causing delays,” Richins emphasized. “We do it and we have to because it is the safest way. People need to be patient and have respect.”

“I don’t need to be liked,” Wright added. “I’m still here to do a job and to protect people.”

So maybe the next time you barely notice the flashing orange lights of an ITD vehicle alongside the road, want to scream in standstill construction traffic or at being stuck behind a plow, you’ll slow down and think too that those folks in bright yellow are also the ones who will be there before anyone else can. They could be the difference between freezing after sliding off the road or staying warm until the tow truck gets there. They could be the one to help make sure that your own family and friends across our tight-knit Idaho communities are given emergency support in time to matter.

It’s even highly likely that they will be.

US-20 Exit 333 in Rexburg re-opens

Aerial map and graphic descriptions of how to drive the diverging diamond traffic pattern at Rexburg Exit 333

REXBURG— U.S. Highway 20 Exit 333 in Rexburg will re-open Thursday night with a new diverging diamond interchange in place. This exit has been closed since late July so the Idaho Transportation Department and contractors could construct the new road design and complete vital underground infrastructure work.

The re-opening comes in time for an increase of traffic as university students arrive in Rexburg for the fall semester. All lanes of traffic will be open and construction efforts remain off the roadway at both Exit 332 (University Boulevard) and Exit 333 (Main Street) through this weekend to accommodate this influx.

“There really is a light at the end of the tunnel in Rexburg,” ITD Project Manager Conner Huffaker said. “We’re excited to be giving people some relief from construction and know that these new exits will do a great job of keeping everyone safe and moving better. Thank you for bearing with us.”

Motorists and citizens should be aware that construction efforts will continue again next week and through the month of October. Intermittent single-lane closures will be in place, with traffic still able to move through the interchanges. Impacts will be noted on 511.idaho.gov.

University Boulevard Exit will fully close again during the week of September 30 through October 4 to allow crews to add a final layer of pavement. This timeframe has been selected in coordination with when Madison School District is out of school for harvest break. Work on both exits is on track to be completed late this Fall. For further details about this project and to watch a video on how to drive the new diverging diamond traffic pattern, visit itdprojects.idaho.gov/pages/us20rexburg.