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

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3. EXISTING CONDITIONS 3.1 Existing Pavement and Soil Conditions The existing shared segment of Jarvis Street is located partially within the City of Ramsey and partially in the City or Elk River. The street is contained within a variable width right-of-way, and is currently a 22 -foot wide rural bituminous pavement section with maximum 2 -foot wide aggregate shoulders, shallow drainage ditches, numerous driveway culverts, and no public utilities (watermain or sanitary sewer). The pavement section on this segment of Jarvis Street has a Pavement and Surface Evaluation Rating (PASER) of 2, ranking it among the worst pavement sections in the City and warranting a complete reconstruction. The City of Elk River's Feasibility Report identifies required subgrade corrections of up to 5 -feet in various areas. Based on the staff's experience while completing work in this area of the City, staff is confident that the underlying soils are suitable for street construction and as such do not anticipate any issues with the improvements as proposed by the City of Elk River. Due to the shallow construction techniques required for the proposed improvements, staff does not believe that groundwater will be a concern during construction, although ground water has been noted in the past in this area at depths as shallow as 4 -feet. This report therefore assumes that dewatering will not be an issue during construction, and that sump pumps will be sufficient for any necessary construction dewatering. 3.2 Watermain Watermain does not currently exist under Jarvis Street, and the City has no plans to extend water service to this area of the City in the foreseeable future. 3.3 Sanitary Sewer Sanitary sewer does not currently exist under Jarvis Street, and the City has no plans to extend sanitary sewer service to this area of the City in the foreseeable future. 3.4 Storm Sewer/Drainage Stormwater drainage on Jarvis Street is currently conveyed along both sides of Jarvis Street in shallow rural ditches and through a series of driveway culverts. Stormwater ponding may be required for this project since pavement widths are proposed to be expanded. This will be discussed with the Lower Rum River Watershed Management Organization in more detail on February 19th, 2015. Feasibility Report Jarvis Street Reconstruction and Railroad Crossing Quiet Zone Improvements City of Ramsey Project No. 15-20 Page 5