Agenda - Council - 04/14/2020 - Laserfiche WebLink

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and only the top 3 feet of subsoil was considered when calculating the average R-value. MSA projects require the use of MnPAVE, a pavement design software, which uses the R-value to determine the required section necessary to meet the MSA design standards. 3.3 Utilities 3.3. a Watermain Sixteen -inch trunk watermain exists under Variolite Street between 157th Avenue and 159th Avenue, the south access to the Woodlands neighborhood. Eight -inch watermain crosses at 161st Avenue for future extension to the west. Sixteen -inch trunk watermain exists along Variolite Street in the east ditch between 163rd Avenue, the north access to the Sweet Bay Ridge neighborhood, and 166t1i Avenue where the line turns east and connects to the Brookfield neighborhood. 3.3. b Sanitary Sewer Sanitary sewer crossings exist at 159th Avenue and 161st Avenue, for potential future expansion to the west of Variolite Street. A 24-inch sanitary sewer trunk gravity line crosses Variolite Street at 163rd Lane and runs southeast through the Sweet Bay Ridge neighborhood. From 163rd Lane, a 10- inch force main sanitary sewer line runs in the west ditch of Variolite Street to 166t1i Avenue. This force main conveys effluent from a lift station in the Brookfield neighborhood. 3.3. c Storm Sewer/Drainage Stormwater runoff is conveyed within ditches along both sides of Variolite Street. Crossing culverts exist at the low points, taking water from the west side of the road to the east side, and eventually into storm ponds or wetlands. A 72-inch concrete culvert conveys water under Variolite Street from west to east at Trott Brook. Ten of the fourteen side streets have culverts within the Variolite Street right of way. These culverts are corrugated metal pipes varying in size between 15-inch and 18-inch. One set of concrete pipes and low profile catch basins exist at 163rd Avenue. 3.3. d Private Utilities Staff has performed a Gopher One State Call to obtain as -built utility information for all private utility companies having service within the Variolite Street right of way. Additionally the Hakanson Anderson topographic survey included a design utility locate, and the locate markings were surveyed in the field and will be shown in the plans. Staff has not yet met with the telephone, gas, power and cable utilities regarding the project, but from as-builts it has been confirmed all are within the project area. During preparation of plans and specifications, Staff will meet with the private utility companies to discuss the proposed improvements as noted in the project schedule within this report. The alignment and footprint of the street will be considered to minimize impacts to private utilities. No impacts to power poles or street lights are anticipated with this project. Should any utility company indicate they wish to upgrade, replace and/or otherwise modify their services during this project, any such upgrades, replacements and/or modifications will be at the sole discretion and cost of the utility company. Feasibility Report Variolite Street Reconstruction City of Ramsey Project No. 20-01 5