07-01-2024 Council Work Session Packet

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Ms. Katie Larsen 06/06/2024 Page 4 Madinah Lakes – Concept Plan - Engineering Review invert of 883.18. The sanitary sewer on Cardinal Way is 10-inch diameter PVC. Inverts are according to record plans for the Century Farms North development. Existing gravity sewers and lift stations downstream of the site whose capacity is largely consumed by existing flows would require additional evaluation. This would include at a minimum survey data to confirm elevations, flow meters to obtain accurate flows, and lift station pump runtime data to determine the residual capacity in these facilities in the near term. As identified in 2040 Comprehensive Plan Table 8-12, these sewers will require improvements to support future flows. Current computer modeling of the sanitary sewer system, which should be corroborated with the additional evaluation described above, suggests that the existing system would have capacity for 300-500 more units in the entire Sanitary Sewer District 2. The 2040 Comprehensive Plan includes a West Side Relief interceptor to serve the northwest portions of Sanitary Sewer District 2. If the additional evaluation described above determines that additional capacity is needed for this development, the West Side Relief interceptor or additional downstream improvements may be considered with this project. All proposed units will be required to connect to the City’s sanitary sewer system. •Transportation The Robinson Property is located south of Main Street (CSAH 14), east of Sunset Avenue (CSAH 53) north of Robinson Drive and east of Century Trail. The concept plan includes an extension of Century Trail from Robinson Drive to Main Street (CSAH 14), extension of Robinson Drive to the east property line, a connection from the site to Robinson Drive at Cardinal Way and a new street access to Sunset Avenue (CSAH 53) between Robinson Drive and Main Street (CSAH 14). •A Traffic Study is required. o Traffic Study should highlight the following: Segment and intersection operational and safety impacts of the proposed development. Determine the type of accesses and connections to existing arterial and collector roadways Intersection traffic control and the need for turn lanes and appropriate storage lengths at the adjacent intersections and site access streets. o Additional commercial and religious uses should be directed to Main Street to limit impacts to existing and proposed local roads. Primary access to high traffic generators should be from higher classification roads. As a high traffic generator, the location of the religious use within the proposed site should be evaluated further. o Phasing of roads will need to be incorporated into the study •Need to ensure there is ample storage area on collector streets that access arterial. Provide necessary spacing between arterial and parallel local roadways. •Address all comments in the Anoka County review letter for Madinah Lakes dated June 6, 2024. o Note, Anoka County is planning on improving Sunset Avenue (CSAH 53) which may impact the traffic patterns and available access to the Madinah Lakes site.