Agenda - Public Works Committee - 02/21/2023

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Zeolite Street NW Zeolite Street was constructed as a temporary rural section with bituminous surface in 2005 from Sunwood Drive to Bunker Lake Boulevard. Utilities All past improvements completed within The COR were consistent with the City's Sanitary Sewer and Water System Comprehensive Plans. See Figures 8-10 in Appendix B for the water, sanitary, and storm utility layouts. Sanitary Sewer Improvements In 2004, a 30-inch trunk sanitary sewer was extended along Sunwood Drive to serve The COR. In 2005, 15-inch and 18-inch sanitary sewer was installed from Bunker Lake Boulevard to Sunwood Drive. This main was installed in Zeolite Street from Bunker Lake Boulevard to the currently platted Ramsey Parkway alignment (from the Ramsey Town Center layout). This main then follows the un-platted Yolite Street alignment to Sunwood Drive. The segment of sanitary sewer main that follows the platted Ramsey Parkway does not follow the revised 2012 master plan alignment of Ramsey Parkway. This main may need to be realigned when this segment of Ramsey Parkway is constructed. The existing sanitary sewer trunk mains have capacity to provide service to The COR. Water Distribution Improvements The elevated storage for the City of Ramsey is adequate to provide fire flow to The COR. The trunk distribution system was also found to be adequate to serve The COR. Storm Water Management Center Street serves as an east/west watershed boundary within The COR. Portions of The COR located east of Center Street are routed to a pond located near Ramsey Boulevard and the BNSF railroad tracks. Portions of The COR located west of Center Street (north of Sunwood Drive) are routed to a regional storm water retention pond located north of Ramsey Parkway, just west of Center Street. The outlet from the regional stormwater retention pond is proposed to consist of storm water piping from the pond to an existing storm sewer system located in Sunwood Drive at Yolite Street. Some exceptions to the general flow patterns are anticipated, and each development will need to be reviewed to determine the most logical storm water routing on a case -by -case basis. As part of the Affinity at Ramsey Housing development, an interim ditch was constructed to connect the pond to the storm sewer infrastructure in Sunwood Drive. A storm sewer system was previously constructed in Sunwood Drive and Center Street. The system directed roadway runoff to regional ponds located to the east and south of Center Street. Approximately 400 feet of Sunwood Drive located west of Center Street flows to the east. The remainder of Sunwood Drive adjacent to Center Street flows to the south in a pipe located at the Yolite Street alignment. Prepared by: Bolton & Menk, Inc. EXISTING IMPROVEMENTS The COR Analysis 1 OR1.129128 Page 6