Agenda - Council - 02/10/2015 - Laserfiche WebLink

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Our Mission: To work together to respasibtyr grow oYU community, and to provide quality, cost-effective, and efficient government services. CC Regular Session 6. 2. Meeting Date: 02/10/2015 By: Bruce Westby, Engineering/Public Works Information Title: Public Hearing - Adopt Resolution #15-02-034 Ordering Plans and Specifications for IP 13-10; Garnet Street and 168th Avenue Reconstruction Purpose/Background: Purpose: The purpose of this case is to conduct a Public Hearing and order preparation of final plans and specifications for proposed City Improvement Project #13-10, Garnet Street and 168th Avenue Reconstruction. Background: City of Ramsey Improvement Project 13-10 proposes to reconstruct two paved street segments including Garnet Street between 167th Street and the north plat line of Now & Then Estates, and 168th Avenue between Garnet Street and the west cul-de-sac. The segment of Garnet Street to be reconstructed measures approximately 1,350 feet in length, and the segment of 168th Avenue NW west of Garnet Street measures approximately 670 feet in length. The total length of these two street segments is approximately 2,020 linear feet, or 0.38 miles. A map showing the location and scope of the proposed improvements on these two streets is included in the attached Feasibility Report as Figure 1 of Appendix A. Existing Conditions Both streets have bituminous pavement and curb, and no storm sewer or public utilities exist under the streets. The streets were constructed in 1988 and have received one sealcoat application in 2006. Both streets are relatively flat and are not able to efficiently shed stormwater runoff, resulting in stormwater runoff pooling on the pavement for extended periods of time which strips oil from the pavement leading to accelerated degradation of the pavement. Both streets have a Pavement and Surface Evaluation Rating (PASER) of 1 and are therefore among the worst streets in the City in terms of pavement condition. In fact, large areas of Garnet Street are no longer paved so Public Work's has been filling the non -paved areas with class 5 aggregate in an attempt to maintain the streets in passable condition. However, each spring when the ground thaws the street becomes extremely difficult to navigate and maintain due primarily to the poor underlying soils which become unstable when saturated with groundwater. Pictures showing the condition of these two streets are included in the Feasibility Report at the end of Appendix A. Proposed Improvements Subgrade corrections are proposed along both street segments to provide a uniform, stable subgrade base for the new pavement sections, thereby ensuring the new pavement sections can achieve their maximum life with minimal maintenance. The subgrade corrections are proposed to consist of excavating 3 -feet of unsuitable subgrade materials and backfilling the void with clean imported select granular borrow. Per the adopted Special Assessments Policy, the cost to correct unsuitable subgrade soils is not an eligible special assessment cost so these costs will be paid in full with City funds. While the subgrade corrections have a significant cost, this will ensure the City will receive the