I-84 overnight closures as work begins to replace Cloverdale Road Overpass

Damaged Cloverdale overpass

BOISE – Construction is underway on improvements to the Cloverdale Overpass bridge and Cloverdale Road between Franklin Road and Camas Drive.

The Ada County Highway District and the Idaho Transportation Department transportation are joining together to replace and widen the damaged Cloverdale overpass bridge, and widen and improve the sections of road adjoining the bridge. Cloverdale Road will remain closed between Franklin Road and Camas Drive during construction, but one lane of travel in each direction will be open by June 15, 2019. Details of the improvements are listed below.

The public will experience immediate impacts of the construction as crews demolish the damaged bridge over Interstate 84. All eastbound lanes and two westbound lanes of I-84 will be closed overnight Monday (December 3) from 9 PM to 5 AM Tuesday morning. All westbound lanes and two east bound lanes of I-84 will be closed overnight Tuesday (December 4) from 10 PM to 6 AM Wednesday morning. Please refer to the map below for detour routes.

Idaho State Police will increase patrols to promote safe driving behavior in the work zone. The work zone may contain hidden hazards and the public is advised to stay out of the area. Pedestrian and bicycle traffic has been allowed to use the existing Cloverdale Overpass, but following demolition that route will be unavailable.

Throughout construction, access to local businesses and residences on Cloverdale Road will remain open. The work will include, but not be limited to:  general construction noise, dust, equipment backup alarms and ground vibration. There may be some night work, but typical work hours on Cloverdale Road will be 7 AM to 8 PM.

This project will construct the following improvements:

  • Replace and widen the Cloverdale overpass bridge
  • Widen Cloverdale Road to two travel lanes in each direction with a center turn lane
  • A raised bike lane, curb, gutter and sidewalk on both sides of the roadway
  • Install an upgraded pedestrian signal at Emerson Drive and Cloverdale Road
  • Expand the bridge over the Ridenbaugh Canal

This joint project has been awarded to Concrete Placing Company, Inc. out of Boise for $10.3 million. Project information and the opportunity to sign up for email updates can be found online at: http://www.achdidaho.org/Projects/proj_road_cloverdale-road-franklin-road-to-camas-drive.aspx.

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.