Laserfiche WebLink
KITTITAS COUNTY <br />DEPARTMENT OF PUBLIC WORKS <br />PUBLIC WORKS — BOARD OF COUNTY COMMISSIONERS <br />STUDY SESSION STAFF REPORT <br />STUDY SESSION DATE: February 27, 2023 <br />TOPIC: Vantage Highway Over Cascade Canal Bridge Replacement Project <br />Road Closure <br />ACTION REQUESTED: Direct Staff to Advertise for Road Closure beginning <br />March 7, 2023 <br />LEAD STAFF: <br />Darren Case <br />RECOMMENDATION: <br />Advertise for Road Closure on Vantage Highway to accommodate remaining <br />construction on Cascade Canal bridge replacement. <br />BRIEFING SUMMARY: <br />• Bridge and roadway construction has been ongoing throughout the Winter with a <br />temporary one lane bypass road through the Cascade Irrigation Canal. <br />• The irrigation canal needs to be restored and have unrestricted flows prior to the <br />start of irrigation season. <br />BACKGROUND: <br />Kittitas County awarded the Vantage Highway over Cascade Canal Bndge Replacement <br />Project to Interwest Construction, Inc. on September 20, 2022. A temporary traffic signal <br />was installed along with a single lane bypass roadway through the Cascade Canal <br />allowing traffic through the area. With the irrigation season approaching, Public Works <br />needs to remove the bypass roadway from the canal as to not impede irrigation deliveries. <br />The concrete bridge deck, approaches, barrier, and asphalt are still scheduled to be <br />completed by April 28, 2023. In order to install and cure the final concrete driving <br />surface on the bridge and approaches, a cure time of up to 28 days is required. To <br />provide the correct curing of the concrete and accommodate irrigation delivery schedules <br />with the removal of the bypass road, a closure of Vantage Highway is required. During <br />the curing time, weather conditions should improve to allow for final asphalt paving to be <br />completed. Public Works is anticipating the roadway to be closed with the detour in place <br />from March 20, 2023, through April 28, 2023, to allow the completion of the remaining <br />work on the project. <br />Page 1 of 2 <br />2023 - PUBLIC WORKS BOARD OF COUNTY COMMISSIONERS WORK SESSION STAFF <br />REPORT <br />