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INTRODUCTION <br />B <br />ACKGROUND <br />This report has been compiled for use by the Street Repair Review Panel (SRRP). It is intended <br />to provide background on projects included in the 2012 voter-approved Bond Measure 20-197, <br />the schedule for construction of these projects, and the details of bond projects constructed in <br />2017. The street repair measure approved $43 million in bonding authority over a five-year period, <br />with construction of bond-funded projects starting in 2014 and completing in 2018. <br />KT <br />EY ERMS <br />Bond - Bond Measure 20-197, Bonds to Fix Streets, approved by Eugene voters in November <br />2012. <br />Inlay – An inlay treatment consisting of removing a <br />specified depth of the existing pavement surface <br />and repaving that same depth with a new pavement <br />surface. This treatment works well where the <br />pavement distress is isolated to the removed <br />portion of the pavement. At times, the inlay <br />treatment needs to be supplemented with an <br />“overlay,” which is when an additional thickness of <br />pavement is placed over the inlaid pavement. An <br />overlay is used when engineering analysis shows <br />that the existing structure does not have sufficient <br />strength to accommodate the projected traffic <br /> <br />Paving on Best Ln <br />volume. The term “overlay” is commonly used to <br />describe both the inlay and overlay practices. <br />One of the benefits of performing an inlay treatment is that the new pavement surface will match <br />existing adjacent structures and not increase the street cross grade. Another benefit of an inlay <br />is that in the removal of the existing pavement, contractors grind up the old pavement and <br />stockpile the material to be recycled into new pavement. <br />In-Place Cement Treated Base (ICTB) – A reconstruction treatment that utilizes and reuses <br />existing road base materials. The existing surfacing is removed and cement slurry is added to <br />strengthen the existing base. The base is pulverized to a specified depth and allowed to cure for <br />18-48 hours. Once cured, the roadway is repaved. This treatment works well on roadways where <br />the existing base is primarily aggregate. Two of the benefits of performing an ICTB treatment are <br />the savings in resources from reusing existing materials and the reduction in the duration of impact <br />for the surrounding neighborhood. <br />2017 Report to the SRRP Page 1 <br /> <br />