Current Work (Updated 4/6/17)
OHSU contractor is excavating contaminated soil, replacing with clean fill and establishing contaminant barriers and/or demarcation layers throughout the Bond Avenue corridor on OHSU property. The purpose of this work is to meet city requirements for a “clean zone” for utilities and retaining wall footings underneath the future roadway. The work also satisfies an Oregon Department of Environmental Quality consent decree that applies to the property and determines the specifications of the contaminant barrier. This environmental work is anticipated to be complete by May 12.
Starting in mid- to late May 2017 PBOT’s contractor will begin constructing retaining walls and placing fill dirt for elevated portions for SW Bond Avenue. Fill must be applied in layers and allowed to settle over a period of eight months to one year in order to minimize the risk of future road settlement. This process is known as surcharge or pre-consolidation and will last through the rest of 2017 and into spring 2018. In fall 2017, utility relocation and environmental remediation work will take place under the Marquam Bridge to make way for the Bond Avenue connection to the existing River Parkway cul-de-sac.
Major road construction will take place in 2018 and is scheduled for completion in fall 2018. This page will be updated periodically as construction progresses.