03/13/2024 PZ Combined Packet - Laserfiche WebLink

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Ms. Katie Larsen 03/06/2024 Page 2 Watermark 7th Addition Engineering Review •Stormwater Management Stormwater management for the Watermark 7th Addition includes a storm sewer conveyance system and rear yard drainage systems. Comments: 1.See redline comments on attached plans. •Water Supply The proposed water system extension is consistent with the preliminary plat. This addition of the development is being served by 16- inch, 12- inch, or 8- inch diameter ductile iron pipe (DIP) water main with 1-inch Type K copper services being extended to each lot. A future stub that is fused PVC C900 is being directionally drilled and extended under 20th Ave/ CSAH 54 Comments: 1.See redline comments on attached plans. 2.Maintain minimum 18” separation from storm sewer to watermain. •Insulate between storm sewer and watermain where separation is less than 36” 3.Note the future trail extension and crossing east of Lotus Lane that includes the 16” watermain extension to Interstate 35E. •Provide whether and how the watermain and hydrant will be installed before or after trail construction at that crossing •Sanitary Sewer The proposed sanitary sewer is consistent with the preliminary plat and PUD Amendment #4. This addition of the development is being served by 8 and 10- inch diameter poly-vinyl chloride (PVC) pipe along with 4-inch diameter Schedule 40 PVC service pipe to each lot. Comments: 1.See redline comments on attached plans. •Transportation The proposed roadways are consistent with the preliminary plat and PUD Amendment #4. The work in this addition includes constructing Rainy Lane, Lotus Lane, Traverse Drive, Pepin Drive, Swan Street, and Mille Lacs Lane. Rainy Lane is proposed to be 38’ wide from back-of-curb to back-of-curb, Lotus Lane is proposed to be 32’ wide from back-of- curb to back-of-curb, and Traverse Drive, Pepin Drive, Swan Street, and Mille Lacs Lane are proposed to be 30’ wide from back-of-curb to back-of-curb. Trails and sidewalks