Agenda - Council - 10/26/2021 - Laserfiche WebLink

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1.0 INTRODUCTION 1.1 Project Description The City of Ramsey (City) is preparing to complete roadway improvement projects within 3 general areas of the City during the 2022 construction season. These areas included; the Sunwood Drive and Waco Street Area, the Autumn Heights Area and the Wood Pond Hills 2nd - 5th Area. To aid in preparing design and construction documents the City solicited bids to perform a geotechnical exploration within each of the 3 areas. Haugo GeoTechnical Services (HGTS), was the successful bidder for the 3 projects. This report presents the results of 13 soil borings advanced along the various roadway alignments within the Wood Pond Hills 2nd - 5th area. 1.2 Purpose The purpose of this geotechnical exploration was to determine existing bituminous pavement section thicknesses, characterize subsurface soil and groundwater conditions and provide recommendations for roadway design and construction. 1.3 Site Description The streets with the Wood Pond Hills 2nd - 5th area (Wood Pond Hills) are located on the west side of Nowthen Boulevard NW (aka County Road 5) and generally located between Sunwood Drive NW and Iodine Street NW. The streets slated for improvements include; Krypton Court, Iodine Court, Junkite Street, 146th Circle, 145th Court, Helium Court, Iodine Street and 145th Circle. Each street is a 2-lane bituminous surfaced residential roadway that provides access to single family homes. The roadways were estimated to be about 30 feet wide and included concrete curb & gutter. Each of the streets slated for improvement was noted to contain numerous cracks, both longitudinal and transverse cracks as well as some "alligator" cracking. We also observed multiple patched areas. 1.4 Scope of Services Our scope of services was performed in accordance with the City of Ramey REQUEST FOR PROPOSAL, PAVEMENT MANAGEMENT PROGRAM, 2022 PROJECTS issued on July 20, 2021. Our scope of service for the Wood Pond Hill project included the following tasks: • Performing 13 standard penetration test borings each to a nominal depth of 10 feet. • Coring the pavement at 13 locations to measure the thickness of the existing bituminous and aggregate base. • Visually/manually classifying samples recovered from the soil borings. • Performing laboratory tests on selected samples. • Preparing soil boring logs describing the materials encountered and the results of groundwater level measurements. • Preparing an engineering report describing soil and groundwater conditions and providing recommendations for roadway construction/reconstruction. 1