Item C: Review of Implementation of Street Bond Measure

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INTRODUCTION BACKGROUND This report has been compiled for use by the Street Repair Review Panel (SRRP). It is intended to give background on projects included in the 2008 voter - approved Bond Measure 20 -145, the schedule for construction of these projects, and details of bond projects constructed in 2012. The Street Repair Bond is a five -year bond, with construction of bond - funded projects starting in 2009 and bond - funded projects to be complete in 2013. KEY TERMS Bond - Bond Measure 20 -145, Bonds to Fix Streets, approved by Eugene voters in November 2008. In -Place Recycling - A process in which a large piece of equipment called a reclaimer mixes the existing base rock and a portion of subgrade soils with dry cement and water to create a cement - treated base. This process greatly reduces the use of virgin materials and trucking that are needed using conventional remove - and - replace construction techniques. Inlay — An inlay treatment consists of removing a specified depth of the existing pavement surface and repaving that same depth with a new pavement surface. This treatment works well where the pavement distress is isolated to the removed portion of the pavement. At times, the inlay treatment needs to be supplemented with an "overlay" which is when an additional thickness of pavement is placed over the inlaid pavement. An overlay is used when engineering analysis shows that the existing structure does not have sufficient strength to accommodate the projected traffic loading. The term "overlay" is commonly used to describe both the inlay and overlay practices. One of the benefits of performing an inlay rR `A t Milling pavement for inlay on Goodpasture Island Road treatment is that the new pavement surface will match existing adjacent structures and not increase the street cross grade. Another benefit of an inlay is that in the removal of the existing pavement, contractors grind up the old pavement and stockpile the material to be recycled into new pavement. The use of reclaimed asphalt pavement, or "RAP ", has been used for more than 20 years in Eugene. In 2012, approximately 10,800 tons of RAP material (30% by weight) was incorporated into the pavement on bond - funded projects. 2012 SRRP REPORT