Ramsey 2040 Comprehensive Plan No Appendices (2)

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228 has been adjusted to 2018 dollars. Lateral sewer extensions from the proposed trunk will be required and these costs are not included. Subdistrict M4 This subdistrict is located north of Highway 10 and west of Armstrong Boulevard. Service to this area will require extensions from the existing lift station on Puma Street. The total estimated cost of the 12- inch gravity sewer extensions is $176,000. This cost has been reduced from the 2016 Comprehensive Sanitary Sewer Study update to account for the 2017 construction of trunk sanitary sewer main and new lift station along Bunker Lake Boulevard and Puma Street. Subdistricts R21 Through R25 These subdistricts are located north of Trott Brook in the north central portion of the City. Service to this area will require extensions from existing lift station RLS-3 in the Brookfield development. Subdistricts R21 and R22 on the west side of CSAH 5 can be serviced from an 18-inch gravity sewer extension from the lift station. Subdistricts R23, R24, and R25 on the east side of CS AH 5 will be serviced by trunk sewers flowing to lift station RLS-8. The forcemain from the station will discharge to the proposed trunk sewer in subdistrict R22. Existing lift station RLS-3 was not designed to accommodate the sewer flow from the north side of Trott Brook. The existing pumps will need to be replaced with higher capacity pumps. The existing 8-inch forcemain from lift station RLS-3 will be essentially at maximum capacity after the upgrade of the lift station pumps and will have high head loss from the flow through the pipe. The high head loss requires larger motors on the lift station pumps. To reduce this head loss somewhat, it is proposed to extend a 21-inch gravity sewer about 1300 feet north in subdistrict R- 1 on Variolite Street from the existing 24-inch trunk sewer. This reduces the forcemain length and related head loss. The lift station upgrade at RLS-3 and the sewer extension in subdistrict R1 are south of Trott Brook but are required to provide sewer service to the subdistricts north of Trott Brook. The lift station upgrade will be required with the initial extension to the north side of Trott Brook. The R1 trunk construction would not be required until service is extended to Subdistricts R23 - R25. The total estimated costs were calculated in the 2016 Comprehensive Sanitary Sewer Study update and has been adjusted to 2018 dollars as follows: Subdistrict R23-R25 $2,058,000 Subdistrict R21 and R22 2,426,000 Subdistrict R1 509,000 Subdistrict RLS-3 290,000 Total: $5,283,000 System Extension for 167th Avenue Future MUSA Study Area The Future MUSA Study Area identifies an area to better understand the feasibility of extending a trunk sewer line to the 167th Avenue/Saint Francis Boulevard (TH 47) land use node. Municipal