Agenda - Council - 10/13/2015 - Laserfiche WebLink

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Our Mistionc To work together to reipoiibly grew our comma nityr, and to provide quality, cert-oliBcdwe, and efficient government services. CC Regular Session 7. 1. Meeting Date: 10/13/2015 By: Bruce Westby, Engineering/Public Works Information Title: Public Hearing - Adopt Resolution #15-10-253 Adopting Assessment Roll Certifying Garnet Street and 168th Avenue Reconstruction Assessments; Improvement Project #13-10 Purpose/Background: Purpose: The purpose of this case is to adopt Resolution #15-10-253 adopting the assessment roll certifying Garnet Street and 168th Avenue Reconstruction assessments; Improvement Project 13-10. Background: City of Ramsey Improvement Project 13-10 involves reconstructing 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 plat line of Now & Then Estates. The reconstructed segment of Garnet Street measures approximately 1,350 feet in length, and the reconstructed 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 both streets is attached as Figure 1. Existing Conditions Both streets were constructed in 1988 using bituminous pavement and curbing. The existing soils in this area are predominantly a mixture of silty sands and clays which do not provide good structural support for pavements. No storm sewer or public utilities exist under the streets, except at the north and south ends of Garnet Street where trunk water and sanitary sewer stubs exist, and a storm sewer culvert that exists under Garnet Street just north of 1681) Avenue. Both streets received one sealcoat application in 2006. Both streets are relatively flat so they 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 pavement degradation. Both streets had a Pavement and Surface Evaluation Rating (PASER) of 1 ranking them as two of the worst streets in the City in terms of pavement condition. In fact, several areas of Garnet Street were missing bituminous pavement and were maintained as an aggregate surface. Proposed Improvements Subgrade corrections were completed along both streets to provide a uniform, stable subgrade base to ensure the new pavement sections can achieve a 60 -year design life with regular, cost-effective maintenance. The subgrade corrections consisted of excavating 3 -feet of unsuitable subgrade materials and backfilling the voids with clean imported select granular borrow. Both streets were reconstructed to match the existing width of 31 -feet from back -of -curb to back -of -curb. Concrete curb and gutter and storm sewer were added to both streets to better facilitate drainage and to protect the edges of