Construction will begin on Idaho 55 next week (July 16) near McCall

Idaho 55 Zachary to Goose Creek Map

The Idaho Transportation Department will begin a project next week (July 16) to resurface Idaho Highway 55 between New Meadows and McCall and construct a new retaining wall east of Brundage. The project will improve driving conditions and safety on this heavily traveled route.

From July to late August, crews will work between Zachary Road in McCall and Goose Lake Road near Brundage. View the postcard for details.

In order to keep traffic moving during the busy summer season, crews will work from 12 a.m. Monday to 12 p.m. Friday. All lanes will be open on weekends.

During the week, ID-55 will be reduced to one lane both day and night with a pilot car directing traffic. The speed limit will be reduced and 12-foot width restrictions will be in place.

“This will be a tight construction zone and we are asking for drivers’ patience during the work week. Please slow down in the work zone and pay close attention to signage, as crews will be working close to traffic,” said ITD Project Manager Jim Hoffecker.

Construction will move to the area between Goose Lake Road and Goose Creek Grade in late August. The project is expected to be completed this fall.

Nampa to Marsing, ID-55 preservation projects begin after 4th of July Holiday week

Map of seal coat project on ID-55 from Nampa to Marsing

A pavement rehabilitation project between Nampa and Marsing is scheduled to begin July 9 and conclude in late July/early August. Work will seal the pavement and extend the life of the roadway.

The first phase, a six-mile micro-seal from Nampa-Caldwell Boulevard to Farmway Road, will occur in the evening (10 pm – 5 am). Work is expected to conclude the week of July 16.

The second phase, an eight-mile chip-seal from Farmway to the Snake River Bridge at Marsing, will occur during daylight hours. Work is expected to conclude in late July.

During both phases, motorists can expect reduced speeds and up to 15-minute delays as traffic will be periodically reduced to one-lane with a pilot car guiding traffic. Where work is occurring, intersections will be controlled by flaggers with minimal delays. Motorists are encouraged to drive with caution through the work zone.

Schedules are subject to change. The contractor is permitted to work weekends. For up-to-date construction information, visit 511.idaho.gov.

Single lane closure on eastbound I-84 Sunday July 1

Cloverdale Lane Closure

The Idaho Transportation Department will close the left-most lane of eastbound Interstate 84 beneath the Cloverdale Overpass Sunday, July 1. This will allow crews to perform work in preparation for replacing the damaged bridge.

Crews will drill beneath the existing bridge to test the soil composition. This will inform what treatment is needed for the foundation of the replacement bridge for Cloverdale Road. The replacement, currently being designed by ITD engineers will feature four 11-foot travel lanes, 5.5-foot raised bike lanes, and 7.5-foot sidewalks.

The single-lane closure is expected to begin early Sunday morning and stay in place for most of the day.

Drivers are encouraged to use caution in the work zone. For updated information on traffic impacts on the State Highway System, please visit 511 online at 511.idaho.gov.

ITD begins work to replace Cloverdale bridge over I-84 with support of ACHD Commissioners

The Ada County Highway District Board of Commissioners voted unanimously to support ITD’s plan to replace the Cloverdale Road bridge over Interstate 84.

The concurrence provides a unified front for ACHD and ITD on how best to address this emergency. The Idaho Transportation Board passed a resolution last week to replace the Cloverdale bridge with a $6-8 million structure.

ITD and ACHD developed a preliminary design for the replacement bridge that will match the county highway district’s long-range plans for Cloverdale Road. ITD District 3 Engineer Amy Revis presented this plan to the ACHD Board on Wednesday. It includes four 11-foot travel lanes, a 5.5-foot raised bike lane, and a 7.5-foot sidewalk.

“I am grateful for the full support of the ACHD Board of Commissioners,” said Revis. “The collaboration between our agencies will help create a bridge that will serve this area well for many years to come. I ask the public to exercise patience as we construct these needed improvements.”

ITD engineers have already been gathering information needed for designing the replacement bridge. When a design is complete, the department will seek bids from contractors to construct the bridge.

The old bridge will remain closed until the new bridge is complete, which is expected to take 12 months. ITD closed the Cloverdale bridge due to extensive damage caused by a fatal crash Saturday, June 16.

The replacement will not include on- or off-ramps to I-84. ITD’s goal is to reopen the important crossing point at Cloverdale quickly. The study and analysis of adding ramps and alternative actions in the area would greatly delay that goal.

ITD releases traffic control plan used for Interstate 84 construction

The Idaho Transportation Department has received interest regarding the traffic control plan for the Five Mile to Orchard project on Interstate 84. You can see the entire traffic control plan for project by clicking here.

ITD Construction projects that have shoulder or lane restrictions are required to include a traffic control plan that meet the standards included in the federal and state approved Manual on Uniform Traffic Control Devices (MUTCD). These contractor traffic control plans are used to set up signs, barrels, and other traffic control devices for a project.

Below is a brief description of the traffic control plan:

First, the plans for advance warning signs before the lane reduction. This information can be found on page 14 of the traffic control plan.

A section of the traffic control plan for warning signs before the lane closure and construction
A section of the traffic control plan for warning signs before the lane closure and construction

The first sign a motorist would encounter is a portable changeable message sign on the right shoulder. This sign read “NIGHT WORK THRU JUNE: CHECK 511”. This sign was placed on the east side of the Eagle Road Overpass.

A minimum of 1,500 feet after the portable changeable message sign, the plan calls for a 4’x4’ orange diamond signs on both shoulders that read “ROAD WORK AHEAD.”

A minimum of 1,000 feet after the “ROAD WORK AHEAD SIGN” the plan calls for a 6’x3’ white rectangular signs on both shoulders that read “INCREASED FINES FOR WORK ZONE SPEED VIOLATIONS.” Following these signs, a minimum of 1000’ away 4’x4’ orange diamond signs on each shoulder are placed with a “SPEED LIMIT 55” box and arrow pointing up indicating a speed limit reduction ahead.

A minimum of 1,000’ feet beyond these orange diamond sign, the plan calls for 4’x5’ white and black rectangular signs on both shoulders reading “SPEED LIMIT 55.” At this point, drivers have seen four signs on each shoulder over a minimum of 4,500 feet. All of this signage is placed before the lane restriction begins.

The next section ITD highlights is the beginning of the construction zone. This information can be found on page 12 of the traffic control plan.

A section of the traffic control plan showing the placement for signs and barrels before, through, and after the construction zone
A section of the traffic control plan showing the placement for signs and barrels before, through, and after the construction zone

A minimum of 1,000 feet after the “SPEED LIMIT 55” signs discussed above, the plan calls for 4’x4’ orange diamond signs on both shoulders indicating the number of lanes closed ahead. This project closed the three left lanes and the signs at this location on the field read “3 LANES CLOSED AHEAD.”

A minimum of 1,500 feet after these signs, the plan calls for 4’x4’ orange diamond signs on both shoulders indicating the left lane is closing ahead (sign 8 in the figure above). A minimum of 1,000’ after this sign, the taper to close off the lane begins.

The plan allows for two options on how to execute a taper. One option is to have a continuous taper closing all three lanes over 1,980 feet. The second is to have three separate tapers, with a tangent (straight) section between each taper.

The plan for this option is detailed as follows. At the beginning of each taper, an illuminated merge right arrow sign is placed. Orange drums with retroreflective lines are used for each taper and tangent section, spaced no more than 55 feet apart.

Each taper must extend a minimum of 660 feet. At the end of each taper, a minimum straight segment (identified as tangent on the plan sheets) of 1,320 feet (1/4 mile) extends until the beginning of the next taper.

Overall, from the first notice of construction at the portable changeable message sign to the final single lane of travel, a vehicle traveling the maximum legal speed would have more than two minutes and twenty seconds to make the appropriate maneuvers and be in the proper lane.

Operational improvements at I-84/Karcher Interchange in Nampa to begin in July

BOISE -The Idaho Transportation Department and the city of Nampa will begin operational improvements and modifications to the ramps at the Interstate 84/Karcher Interchange in Nampa beginning the week of July 9. The project is scheduled to be complete this fall.

Construction will include:

*Eliminating exit 33B and adding lanes at exit 33A/Midland Blvd
*Adding a second southbound lane to Midland Blvd
*Adding a second left turn lane from the Karcher Bypass to southbound Midland Blvd
*Upgrading sidewalks and traffic signals

Motorists should plan ahead and be prepared for shifts in traffic patterns, periodic ramp closures, and other detours during construction. A map of the work zone is available here.

To sign up for construction updates, please email Jennifer.gonzalez@itd.idaho.gov or call 208.334.8938.

The project is being funded jointly by the city of Nampa and ITD. Central Paving is the contractor.

Cloverdale Road Overpass to remain closed for safety of the traveling public

Cloverdale Rd Overpass is closed for repairs following a fiery crash

The Cloverdale Overpass Bridge will remain closed indefinitely following a fiery crash on Interstate 84 late Saturday evening.

The fire significantly damaged a section of the overpass. ITD inspectors have evaluated the damage and determined the bridge is not safe to travel on. The bridge will remain closed until full repairs can be made. ITD has assessed it is safe for traffic travelling underneath the bridge on I-84.

ITD will develop an emergency contract to make repairs as quickly as possible. At this time, the department plans to remove and replace the damaged section. This is expected to take several months to complete. Details on the schedule, cost, and traffic impact of repairs will be shared as they are developed.

Test pile driving rescheduled for July 9-12 on I-84 at Northside Blvd.

Crews drive pylons into the ground for testing

Shoulder restrictions will be in place on Interstate 84 in Nampa at the Northside Boulevard interchange July 9-12. Crews will be driving test piles in the center median as part of early prep work for ITD’s Northside Interchange Replacement Project.

Pile driving will be done during the day; this work is noisy. No lane closures are anticipated, but drivers are urged to slow down and pay attention in the work zone. Crews will set up traffic control and a work zone the night of July 9 and are anticipated to be complete by the end of the week.  Learn more at itd.idaho.gov/84corridor.

This work was originally scheduled to take place June 18-20. It was delayed due to wet ground conditions.

Idaho Highway 45 (12th Avenue) resurfacing in Nampa to begin next week

The Idaho Transportation Department will resurface a five-mile section of Idaho Highway 45 (12th Avenue) in Nampa beginning the week of June 18.

This maintenance is designed to seal and protect the roadway surface, and extend the life of the pavement.

Construction is scheduled from 9 p.m. to 6 a.m. Sunday through Thursday. This schedule is designed to reduce impacts to the traveling public. The project will be complete in August.
The project limit extends from Deer Flat Road into downtown Nampa. Motorists are encouraged to slow down, pay attention, and watch for crews working in the area.

As part of this project, the city of Nampa will construct a median on the highway between Dewey Avenue and Lincoln Avenue. The median is designed to enhance safety and reduce the number of side-angle crashes in this heavily traveled location. A pedestrian signal was also constructed earlier this year in the vicinity.

Community open house to discuss I-84 Business Loop construction in downtown Nampa to be held May 31

The Idaho Transportation Department will host a community open house to discuss the construction plans for the I-84 Business Loop in downtown Nampa on Thursday, May 31.

The open house will run from 3 p.m. to 6 p.m. at the Nampa Civic Center, Casler Room, 311 3rd Street South in Nampa. Community members are invited to stop by any time to learn more about the construction plans and discuss the project. Construction work will include the following streets:

• Garrity Boulevard (11th Avenue North to Grant Street)
• 11th Avenue (3rd Street South to Garrity Boulevard)
• 3rd Street South (Northside Boulevard to 11th Avenue)
• 2nd Street South (Northside Boulevard to 11th Avenue)
• Library Square
• Northside/2nd Street intersection

Download the project fact sheet for more information.

Construction is anticipated to begin in June and be completed in late summer 2018. The project will resurface and reconstruct several roads in downtown Nampa to improve driving conditions and safety.

Business access will remain open at all times during the day. A majority of the work will occur at night between 8 p.m. and 6 a.m. with some lane restrictions and detours necessary. Lane restrictions may also be necessary for curb and gutter work during the day.

Pedestrian ramps are also being replaced throughout the project area to meet the requirements of the Americans with Disabilities Act (ADA). Pedestrian ramp work will occur during the day Monday through Friday and may require brief sidewalk closures.

To receive email updates about this project, text “NAMPA” to 22828 or email Jennifer.Gonzalez@itd.idaho.gov. Construction details also will be posted to itd.idaho.gov/d3.