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.

Testing finds no E. coli in Hagerman rest area water

UPDATE 7/3/18: Second water test comes back clean, so boil order lifted and water fountain reopens this afternoon.
UPDATE 6/30/18: Additional water testing at the Hagerman rest area on US-30 has come back negative for E. coli. Another test is slated for today, Monday 7/2.

Below is the initial release on the subject:

SHOSHONE—On Thursday, June 28 E. coli bacteria were found in the Hagerman Rest Area water supply located south of Hagerman on US-30. The discovery was made during routine quarterly testing conducted by the Idaho Transportation Department.

Drinking fountains have been disabled but the rest area will remain open while ITD works with the Idaho Department of Environmental Quality to investigate the cause and take corrective actions on the issue.

Bacterial contamination can occur when increased run-off enters the drinking water source (for example, following heavy rains). It can also happen due to a break in the distribution system (pipes) or a failure in the water treatment process.

What should I do? What does this mean?

  • DO NOT DRINK THE WATER WITHOUT BOILING IT FIRST. Bring all water to a boil, let it boil for one minute and let it cool before using, or use bottled water. Boiled or bottled water should be used for drinking, making ice, brushing teeth, washing dishes, and food preparation until further notice. Boiling kills bacteria and other organisms in the water.
  • E. coli are bacteria whose presence indicates that the water may be contaminated with human or animal wastes. Human pathogens in these wastes can cause short-term effects, such as diarrhea, cramps, nausea, headaches, or other symptoms. They may pose a greater health risk for infants, young children, the elderly, and people with severely compromised immune systems.
  • The symptoms above are not caused only by organisms in drinking water. If you experience any of these symptoms and they persist, you may want to seek medical advice. People at increased risk should seek advice from their healthcare providers about drinking this water.

What is being done?

ITD is completing a comprehensive assessment of the water system as well as monitoring and operational practices to identify and correct any causes of the contamination.

Public will be informed when tests show no bacteria are present and there is no longer need to boil drinking water. It is anticipate that the problem will be resolved within 7 days.

For more information, please contact ITD at 208-886-7808 or ITD 216 South Date St. Shoshone ID 83352. General guidelines on ways to lessen the risk of infection by bacteria and other disease-causing organisms are available from the EPA Safe Drinking Water Hotline at 1-800-426-4791.

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.

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.

Emerald Street Connector Overpass opens Saturday

Crews wrap up the repavement of the Emerald St. overpass along I-184

BOISE – Bridge preservation work on the Emerald Street overpass of I-184 (the Connector) between Cole Road and Curtis Road, is complete. The bridge reopens to all traffic beginning Saturday morning (May 19).

Preservation work on additional Treasure Valley bridges will continue this summer at the following locations:

  • I-84, Meridian Road Interchange
  • I-84, Broadway Avenue Interchange
  • I-84, Cole-Overland Interchange
  • I-84, Gowen Road Interchange
  • Broadway Avenue, Boise River Bridge

Unlike at Emerald, remaining work will not require full closures and most work will be completed at night. Motorists can expect lane reductions and reduced speeds.

“Bridge preservation work is intended to strengthen the bridge surfaces and extend the life of the pavement, reducing the need for additional maintenance at a later date,” said Crystal Grasmick, ITD Project Manager. “We appreciate the traveling public’s patience as we work through these important improvements.”

Cannon Builders, Inc. is the contractor on this $2.7 million project. For up-to-date traffic impact information, visit 511.idaho.gov.

Nighttime lane restrictions begin soon for Broadway, Front and Myrtle (US-20) repaving

Myrtle Street

Nighttime lane restrictions will begin in tonight, Wednesday May 16 on Front Street, Myrtle Street and Broadway Avenue in Boise as the Idaho Transportation Department prepares to repave all three roadways.

The project will include milling off the worn asphalt and replacing it with new pavement. Construction is anticipated to begin on Myrtle Street, then move to Front Street, and on to Broadway Avenue in late June or July.

The repaving work is expected to be completed in late summer.

Work includes:
• Myrtle Street between I-184 (Connector) and Broadway Avenue
• Front Street between I-184 (Connector) and Broadway Avenue
• Broadway Avenue between Rossi Street and the New York Canal north of I-84

The majority of construction will occur from 8 p.m. to 6 a.m. All lanes will be open during the day. Occasional work will be scheduled on Friday and Saturday 10 p.m. to 7 a.m.

During nighttime paving operations, two lanes will be open on Front and Myrtle Streets. One lane will be open in each direction on Broadway Avenue.

“To get construction updates, sign up for emails or text messages from the ITD Office of Communication,” said ITD Southwest Idaho Resident Engineer Jayme Coonce. “Dates and plans can change quickly due to unpredictable weather and other factors. ITD will send regular updates to keep motorists, residents and businesses informed.”

To request email updates, text US2026 to 22828. Updates also will be posted to itd.idaho.gov/D3.

ITD estimates 30,000 vehicles travel on Myrtle, Front and Broadway each day. The U.S. 20 resurfacing project is expected to extend the pavement lifespan approximately 10-12 years.

Sunroc Corporation, of Boise, is the contractor for $3.14 million project.