The Idaho Transportation Department launches a two-week online meeting today (May 21) to share plans for the next phase of extending Idaho Highway 16 through the central Treasure Valley. The meeting will be available from May 21 to June 4 at itdprojects.org/idaho16.
The meeting includes a virtual tour and design plans for the future north-south corridor, which is currently the primary route to Emmett. ITD is extending the corridor 5.5 miles south to connect with I-84.
The extension of Idaho 16 will operate as a high-speed expressway, with limited access on or off it. By 2040, the highway is expected to serve 60,000 motorists each day in the growing area between Ada and Canyon counties.
“This corridor has been in the making for many years and the community has given input at many important stages of this significant highway corridor,” said ITD Program Manager Amy Schroeder. “All of the design plans in this online meeting are consistent with the overall vision and allows ITD to proceed to construction next year.”
Phase 1 of the corridor was completed in 2014 and involved bridging Idaho 16 over the Boise River and connecting U.S. 20/26 and Idaho 44.
On Wednesday, the Idaho Transportation Board approved funding to construct the next phase of the extension. Phase 2, the focus of the online meeting, will build the remaining five miles of highway from U.S. 20/26 to I-84. This includes an interchange with I-84, connections at Franklin and Ustick Roads, and bridge structures over local roads, canals, and a railroad.
The estimated cost of this work is $170 million. It will be funded using bonds and paid off using new sales tax funds approved by the Idaho Legislature in 2021.
“The work we have done on the Idaho 16 corridor in the last few years has prepared us to quickly leverage this new funding stream,” said Schroeder. “We have an obligation to the taxpayer to make the most of the today’s low interest rates and bring needed transportation investments to Idaho quickly.”
The online meeting will include live Q&A sessions from 12-1 p.m. and 5:30-6:30 p.m. on June 2. Alternate versions of the meeting are available for those without Internet access. Please contact ITD at (208) 334-8008 or Idaho16@ITD.Idaho.gov.
LEWISTON – The Idaho Transportation Board approved dozens of new road projects across every corner of the state Wednesday afternoon (May 19) during its regular monthly meeting in Lewiston. The projects include $350 million in construction work that is expected to begin sometime next year.
Many of the projects are part of Idaho Governor Brad Little’s “Leading Idaho” transportation funding solution.
“Idaho is the fastest growing state in the nation. To keep up with the demands of a fast-growing state, our historic transportation funding solution helps save Idahoans’ time, keeps us safe on our roads, and makes our state’s economy even stronger,” Governor Little said. “I appreciate the Idaho Transportation Board for acting quickly to put these new funds to work.”
Projects approved today that are ready now include $170 million of Transportation Expansion and Congestion Mitigation (TECM) funds to expand Idaho State Highway 16 from its current location at US-20/26 (Chinden Blvd.) to Interstate 84. The board also dedicated $37 million of TECM funds to expand US-20/26 to four lanes from Middleton Road to I-84. Both projects should be under construction next year and will likely be bonded.
In addition, the board approved about $140 million in projects with one-time funds from the Building Idaho’s Future program, along with federal and state COVID Relief funds. This statewide group of projects is focused on critical maintenance and safety needs for highways and bridges from Ashton in eastern Idaho, to the Magic Valley and north to Wallace.
“We want to thank the Idaho Legislature and Governor for one of the most significant transportation investments in state history,” said Idaho Transportation Board Chairman Bill Moad. “Our goal as a board is to be great stewards of this funding. We will work with the department to pick the projects across Idaho that will have the greatest return on investment in improving safety, increasing mobility and addressing Idaho’s rapid growth.”
In addition to $350 million in construction that will begin next year, the board also approved nearly $170 million for project development. This includes environmental planning, design and right-of-way acquisition.
“Project development is very important. The Board wants the department to have projects ready for the Building Idaho’s Future program and to be constantly advancing additional work for any future federal or state funding opportunities,” said Idaho Transportation Board Chairman Bill Moad. “It is our goal to put the money to work as soon as it becomes available.”
The TECM fund was increased to $80 million through House Bill 362 signed by Governor Little earlier this month. The Idaho Transportation Department will leverage those ongoing funds into a Building Idaho’s Future bonding program that could yield as much as $1.6 billion. The goal is to have major safety and expansion corridors financed over the next six to eight years with the bond proceeds.
ITD staff will present potential projects and corridors to include in the bonding program to the Idaho Transportation Board by the end of this year.
This spring, crews will chip seal the travel lanes of I-84 between the Broadway and Blacks Creek Road Interchanges as well as the on and off ramps at Broadway, Gowen, Eisenman, and Blacks Creek. Work is expected to begin May 22 and is anticipated to be complete in mid-June.
Chip sealing, also called seal coating, maximizes the taxpayers’ investment by extending the lifespan of the pavement. A sticky slurry is sprayed on the pavement, rock chips are applied on top of the slurry for a long-lasting seal. Hot, daytime temperatures are needed to ensure a successful application.
Reduced speeds are required on fresh chip seals to protect rock chips from flying up, causing potential damage to vehicles and windshields. Before the end of each working day, crews will sweep up loose chips on all lanes.
Motorists should expect delays in the work zone along I-84 and between Exits 64 and 54 as traffic will be reduced to one lane in each direction. Additionally, there will be lane closures on Gowen Road (up to Technology Way) and Blacks Creek Road near I-84. This project will require intermittent ramp closures. Detours will be signed. Check 511 for current and scheduled closures.
“The work zone for this project will be moving around quite a bit,” said ITD Project Manager Patrick Kelly. “Please check 511 regularly. Drive attentively and follow posted speed limits and detour signage. We want to get in, complete the work well, and get out as quickly as possible to limit our impacts.”
Work is anticipated to begin on May 22. Expect preliminary staging and traffic control setup on Friday, May 21. Work will be performed on the Eisenman, Gowen, and Broadway Interchanges on the weekends to reduce effects on weekday traffic per the following schedule:
Starting May 17, road closures on ID-55 between Smiths Ferry and the Rainbow Bridge will shift to a new schedule: Monday through Thursday, 12 – 2 p.m. Please note that opening times may change due to unforeseen circumstances, such as equipment, weather and daily blasting results. Outside of the closure window, the road will be one-way alternating traffic with a 15-minute delay. This will continue through May 27, the end of the spring schedule.
For Memorial Day weekend, Friday, May 28, through Monday, May 31, the road will be fully open to two-way traffic.
The summer schedule will start Tuesday, June 1. ID-55 will be reduced to one-lane alternating traffic Monday through early Friday and then will be fully open to two-way traffic through Sunday. This schedule will be in place through early September.
Visit itdprojects.org/ID55smithsferry for more information or to sign up for email and text alerts, or call (833) 913-ID55 to speak to a project representative
Interstate 84 will be closed between Eagle Road and I-184 (The Connector) for three hours overnight Monday, May 10th to allow Idaho Power crews to work over the roadway.
Idaho Power will be stringing new power lines adjacent to Cloverdale Road. To safely work over I-84, the utility company will install a net over the highway. The installation will require daytime work on the shoulder. Then, from 1 a.m. to 4 a.m. on May 10th, I-84 will be closed as crews erect the netting.
During the closure, I-84 traffic will be diverted to local roads. Eastbound traffic will exit at Eagle Road (Exit 46), travel along Overland Road, and re-enter the Interstate at Cole/Overland (Exit 50). Westbound I-84 and I-184 traffic will be detoured at Cole/Overland and Franklin Road (Exit 1) respectively. They will travel on Franklin Road and re-enter the Interstate at Eagle Road.
The Ada County Highway District will be actively managing signal timing on Overland and Franklin Roads during the closure to maximize the efficiency of those routes. ITD recommends the traveling public plan trips around the closure time or anticipate significant delays through the closure area.
Idaho Power estimates placing the new lines will take 8-10 days. A second closure of the Interstate will be required when that work is complete to remove the netting.
For questions about Idaho Power’s project, contact Sven Berg, Idaho Power Corporate Communications Specialist, at sberg@idahopower.com or (208) 388-2905.
The Northside Boulevard interchange will be fully opened to motorists on Sunday morning, May 9 at 6 a.m. ITD began construction on the interchange in July 2019 and will reopen on schedule.
The Northside Boulevard Interchange has been replaced with a Single-Point Urban Interchange or SPUI design to accommodate more traffic and reduce delays.
The new SPUI interchange includes:
A central traffic signal underneath I-84 that will direct all turning movements from a single point.
New sidewalks and bicycle lanes added to both sides of Northside Boulevard.
Flattened on- and off-ramps to improve visibility for vehicles accessing I-84.
New ADA curb ramps at the intersection of 6th Street and Northside Boulevard.
ITD will open the new lanes of I-84 between Karcher Interchange and Franklin Boulevard on Tuesday morning, May 11. Motorists will have three lanes in each direction and a new auxiliary lane between the ramps.
“ITD would like to thank the community for their patience during the construction of this important project,” said Mark Campbell, ITD Project Manager. “Heads up, there are still final cleanup activities in the area over the next few weeks as construction crews finish the project. We ask motorists to continue to slow down and pay attention in the work zone.”
To request text message updates about other major traffic impacts on I-84 in Canyon County, text 84CORRIDOR to 1-866-ITD-84CC. For details about the I-84 expansion in Canyon County, visit itdprojects.org/84corridor or listen to the monthly Drive Idaho podcast.
The Idaho Transportation Department has completed the reconstruction of the Middleton Road Bridge over Interstate 84 ahead of schedule and will open it to the public tonight. ITD will cover the opening at 8 p.m. live on Facebook.
The reconstruction was necessary to make room for additional travel lanes for I-84. ITD has begun the first phase of constructing a third travel lane in each direction. The new Middleton Road Bridge is long enough that a future fourth lane can be constructed without conflict.
The bridge was rebuilt ahead of schedule by contractor Concrete Placing Company. The cost of construction was $5.5 million.
The new bridge features a travel lane in each direction, wider shoulders, and a sidewalk on the north side. The design allows for future expansion of Middleton Road without the need to rebuild the entire structure. The project also constructed a signal at the intersection of Middleton Road and Cherry Lane, north of I-84.
“This project went really well and this new bridge is a great investment for transportation in the area,” said ITD Project Manager Michael Lucas. “We had a lot of coordination with some local road projects and the work on the Interstate. The crews worked through Covid-19 complications, adverse weather, and a lot of night work to get the job done. I appreciate the public’s patience during construction.”
The Department will quickly move to the second bridge over I-84 restricting the widening, Ustick Road. That bridge lies a little over a mile to the west of the Middleton Road Bridge. The Ustick Road bridge reconstruction project requires two separate bridge structures to be rebuilt, one over I-84 and the other crossing the Notus Canal. ITD will release a timeline for that project at a later date. Current information on the Ustick Road Overpass project can be found online at ITDprojects.org/UstickRoadOverpass/.
The Idaho Transportation Department launched the next phase of a safety patrol and courtesy towing service on Interstate 84 this week. The service, which was introduced in 2019 in Nampa, will now include the I-84 construction zones in Caldwell.
The Safety Services Patrol provides complimentary towing for disabled vehicles in the I-84 construction zone. The service has assisted 274 vehicles since it began.
“I-84 is the main commuting and freight route for thousands of drivers in Canyon County,” said Mark Campbell, ITD project manager. “Our goal in funding this service is to keep these drivers moving as safely and efficiently as possible as construction moves west toward Caldwell.”
Patrol vehicles will operate Monday-Friday from 6 a.m. to 9 a.m. and from 3 p.m. to 7 p.m. between 10th Ave/City Center (exit 29) and Karcher/Midland Road (exit 33). Vehicles will be marked with new signage to increase visibility.
Disabled cars, trucks or motorcycles are towed to one of four locations located on the map. Motorists are responsible to arrange transportation for their vehicle within 24 hours.
“We are committed to continuing the close working relationship between this program, our state communications office and Idaho State Police in the next phase of the program,” said Campbell. “These offices, working together, are able to clear crashes quickly and safely.”
Crews recently began constructing temporary travel lanes in the outside shoulders of I-84 between Caldwell and Nampa. For more information about I-84 construction in Canyon County, listen to the Drive Idaho podcast or visit itdprojects.org/84corridor.
As part of ongoing construction to widen Chinden in the Treasure Valley, several eastbound lanes on Chinden will close tonight at the Linder intersection and stay closed until construction on this segment ends later this summer.
Flaggers will reduce eastbound Chinden to one dedicated left turn lane and one through/right turn lane so crews can place traffic signal poles. Westbound traffic will not be affected, but eastbound motorists should expect significant delays at peak travel time and allow extra time to reach their destinations.
This configuration will remain in place until later this summer when work on this segment is anticipated to end. At that time, Chinden will open to four lanes, two in each direction, with a center median between Linder and Meridian Road.
To learn more about other widening plans in the corridor and sign up for updates, visit itdprojects.org/chindenwest.
In the wake of a rockslide on March 15 along Idaho State Highway 55 near Smiths Ferry, the Idaho Transportation Department has determined the slide was a localized event and, after additional mitigation, the greater hillside remains stable.
The slide occurred within a work zone where crews are cutting into the adjacent hillside to create extra room for ID-55 and enhance the overall safety of the road. The space will be used to reduce the severity of curves, construct wider shoulders, and add guardrail and pullouts.
Water from melting snow seeped into and destabilized the hillside at a cut crews created last fall. To prevent future localized slides, ITD is enhancing the reinforcement of the hillside as cuts are created. The Department has hired geotechnical experts to aid in this effort. This approach is expected to improve reliability of the hillside’s stability and the overall efficiency of the blasting work.
“Safety is the top priority of the Idaho Transportation Department. We are thankful no one was hurt during the rockslide activity on State Highway 55 last month,” said District 3 Administrator Caleb Lakey. “Hillsides and slopes become more unstable when doing work of this nature. We expect rock fall as a part of these projects. We had precautions in place to protect the traveling public in case of any slide activity and are doubling down on those precautions.”
ID-55 is now open to a single lane of alternating one-way traffic. Travelers should plan for a fifteen-minute delay at the project location. From now until late May, there will be daily closures Monday through Thursday from 10 a.m. – 2 p.m. to allow blasting and debris removal activity.
“I appreciate the public’s patience as we responded to this rockslide,” said Lakey. “We did not take the reduction of service on this critical corridor lightly. It’s a good reminder to drive attentive and be on the lookout for rocks on the roadway during the springtime.”
ID-55 is open to one lane of alternating traffic between Smiths Ferry and Rainbow Bridge starting at 8 a.m. today. Drivers can expect full road closures Monday-Thursday from 10 a.m. to 2 p.m. and one-way alternating traffic with a 15-minute delay when the road is not closed.
Idaho Highway 55 near Smiths Ferry will reopen to the public beginning at 8 a.m. Friday morning to a one-lane alternating traffic configuration. The highway will remain in this configuration except for regular closures Monday through Thursday from 10 a.m. to 2 p.m. as construction crews blast. Until Friday, the highway will remain closed, with an open window tomorrow from 8 a.m. to 3 p.m.
“We know how important it is to have the highway open for this weekend’s traffic,” said Caleb Lakey, ITD District 3 Engineer. “The response to the March 15 rock slide has been excellent, with many experts converging to address the problem quickly. I appreciate the public’s patience during this reduction in highway service.”
Sunday’s blasting work successfully mitigated travel risk in the area of the rockslide on ID-55 and experts feel confident that the hillside is now stable for safe, long-term travel through the corridor. Crews will finish removing the blast debris and cleaning up the area on Thursday.
From April 2 through mid-May, the road will be closed Monday through Thursday from 10 a.m. to 2 p.m., and open to one lane of alternating traffic with a 15-minute delay outside of the closure hours. For more information about the ID-55 Smiths Ferry Project, please visit itdprojects.org/projects/id55smithsferry/
update #10: 2:00 p.m. 3/29/2021
Over the weekend, Idaho Transportation Department contractors successfully removed an undercut outcropping of rock that remained from a rockslide near Smiths Ferry on March 15, completing a critical safety intervention to allow a return to normal work.
The outcropping presented a considerable safety hazard to the public using Idaho Highway 55 below. ITD brought in a nationally-recognized team of geotechnical engineers to assess the situation and develop a blasting plan to remove the remaining material. The blast occurred Sunday at 4 p.m. after the road was closed for the day.
“It was a picture-perfect blast,” said ITD Project Manager Alex Deduck. “We needed to remove roughly 1500 tons of material sitting 30-50 feet above the roadway. The narrow landing area made this incredibly difficult, but the team did a great job.”
The blast required several days of preparation. A survey crew scaled across the rock face to determine drilling locations. Then, a blasting plan was drawn up. On Saturday, an excavator and drilling machine were flown above the rock face to drill holes and set charges.
“The use of a helicopter was cheaper and faster for us,” said Deduck. “The terrain here is steep and covered in trees. It would have taken several days to pioneer a path to the slide location.”
The blast area is now under a 48-hour observation period to watch for additional movement. Following that, the blasted material will be removed. The road will remain closed except from 8 a.m. to 3 p.m. every day, when a single lane of alternating traffic will be allowed. ITD encourages motorists to us U.S. 95 as an alternate route.
ITD will provide another update this Wednesday evening.
update #9: 8:30 a.m. 3/26/2021
Idaho Highway 55 continues to be open daily to one lane of alternating traffic between 8 a.m. and 3 p.m. Travelers can expect a 15-minute delay during this time and road closures outside of these hours.
The current traffic restrictions are expected to last through early April as crews work to remove the remaining rock outcropping. Drivers are encouraged to plan ahead, visit Idaho 511, and pay close attention to the message boards on ID-55.
Update #8: 2:00 p.m. 3/23/2021
Geo-technical crew scaling the rock face Monday
Starting Wednesday, March 24, Idaho Highway 55 will have daily openings to one lane of alternating traffic from 8 a.m. to 3 p.m. The road will be closed outside these hours. Travelers can expect at least 15 minute delays during this time. Crews will be actively monitoring the rock outcropping and are prepared to close the road immediately if weather or hillside conditions change. ITD recommends travelers, especially large vehicles, RVs, and trucks pulling trailers, still use U.S. 95 as the alternate route.
“We want to thank the public for their patience as we respond to this rock slide,” said Caleb Lakey, ITD District Engineer. “Our ITD personnel and contractor crews have worked nights and weekends to open the road and protect the public. While this is a major milestone, we recognize that there is still significant effort required to resolve this issue.”
ITD is working alongside national slide experts and finalizing plans to safely remove the remaining rock outcropping, which will require additional full road closures. These closures will likely begin in the next seven days. More information about the closures will be provided as it is available. Drivers are encouraged to plan ahead, visit Idaho 511, and pay close attention to the message boards on ID-55.
Update #7: 5:30 p.m. 3/21/2021
A crew surveys the slide area on ID-55
ITD has been monitoring the rock slide throughout the weekend and determined that conditions continue to be unsafe in the area, and Idaho Highway 55 will remain closed to traffic.
“At this point, our ITD team can’t confidently open the road with the existing risks to the traveling public and crews,” said Caleb Lakey, ITD District Engineer. “Recent weather conditions paired with the weakened hillside, rock and soil from the slide has created a situation that requires further considerations before we can allow cars through. We know ID-55 is an important travel corridor in Idaho and we are working hard to open the road safely.”
Drivers are advised to use U.S. 95 as an alternate route. The next update will be provided in the afternoon on Tuesday, March 23.
Update #6: 1:50 p.m. 3/18/2021
A national rock slide expert has evaluated the slide that took place March 15 on Idaho Highway 55 and determined that the road should remain closed at least through Sunday, March 21 for safety reasons. ITD is working diligently to safely open the road to traffic and will monitor conditions through the weekend during the forecasted storms. Working with experts, ITD will review conditions in advance of next week and provide another update during the afternoon on Sunday, March 21, so travelers can make appropriate travel plans.
“Safety of the traveling public, as well as the crews who are on site, is our top priority,” said Jason Brinkman, ITD District 3 Engineering Manager. “These decisions are not taken lightly. We understand that this road closure is not ideal, and are working extensively to reopen the road as soon as safely feasible.”
ITD continues to advise motorists to use U.S. 95 as an alternate route.
Panoramic photo of the slide, March 17th, 2021
update #5: 1:00 p.m. 3/17/2021
Idaho Highway 55 will remain closed today, through tomorrow. The Department continues to advise motorists to use U.S. 95 as an alternate route.
ITD crews monitoring the slide have seen continued movement of the hillside. The Department has called in nationwide experts to better assess the situation. These experts have assisted ITD in the past with the 2020 slide on U.S. 95 near Riggins. They will be on site tomorrow where we will asses how to proceed.
ITD will provide another update midday Thursday, March 18th.
update #4: 10:00 p.m. 3/16/2021
ID-55 near Smiths Ferry will remain closed due to the condition of the adjacent hillside. Safety is the top priority as crews continue to investigate the situation and work to reopen the road. Drivers shoulduse U.S. 95 as an alternate route. A status update will be provided midday Wednesday, March 17.
Update #3: 12:45 p.m. 3/16/2021
Crews are removing debris from the rockslide and working to open a single lane for travel. At this time, the closure will be extended beyond 2:00 p.m. today. Conditions are variable and no estimate can be given if the highway will open today or tomorrow. Motorists are encouraged to consider an alternate route.
Geotechnical engineers have conducted a preliminary assessment and believe there is risk more rocks may slide. Current work is focused on creating protection for at least a single travel lane on the highway from additional rockfall.
ITD has coordinated with emergency service providers to ensure critical services remain available for the community.
UPDATE #2: 11:25 A.m. 3/16/2021
Photo Gallery of slide added
Prev
Next
update #1: 10:40 A.m. 3/16/2021
Idaho Highway 55 will remain closed while crews address the rockslide. The current plan is to follow closure protocols established for the highway project during a blasting event, which requires a complete closure from 10 a.m. to 2 p.m.
The slide removed rock and earth from beneath a spire on the hillside. The stability of that spire is uncertain and the area is considered dangerous. Motorists planning to travel between Valley County and Boise County should consider alternate routes.
Another update will be provided this afternoon.
Original post: 9:30 a.m. 3/16/2021
Late in the night on March 15th, a rockslide hit Idaho Highway 55 near Smiths Ferry, closing the highway. This is located within the work zone for the Smiths Ferry to Rainbow Bridge highway improvement project. However, at this time, there is no indication the work there directly triggered the slide.
There are no known injuries at this time. An excavator being used for the project did get hit.
Geotechnical experts are evaluating the situation. Given early observations at first light, the situation remains dangerous and the highway will remain closed.
“The rock and earth in this area is historically unstable,” said project manager Alex Deduck. “We saw a significant slide in 2019 just south of here. Last night’s slide is another example why our project is so important.”
The Smiths Ferry to Rainbow Bridge project will remove thousands of tons of rock and earth from the adjacent hillside to widen the highway, create rock catchment ditches, and reduce the severity of curves. Information about the project, as well as resources to sign up for email and text alerts, can be found at itdprojects.org/id55smithsferry/.
More information will be posted on this blog post as the situation develops.
