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Ms. Katie Larsen <br />4/13/2020 <br />Page 5 <br />Nadeau Acres Engineering Review <br /> <br /> <br />Per planning comments, these services can be added with final plans. <br />Noted. <br /> <br />• Sanitary Sewer <br /> <br />There is an existing 10-inch diameter poly-vinyl chloride (PVC) sanitary sewer stub at the intersection <br />of Red Oak Lane and 20th Avenue (CSAH 54). The invert of the stub is approximately 913.6 and is to <br />be verified. <br /> <br />The City of Lino Lakes Comprehensive Plan identifies a lift station to serve sanitary sewer districts 3D <br />and 3G. <br /> <br />The applicant is proposing to serve the development with 8-inch diameter PVC sanitary sewer, 10- inch <br />diameter PVC sanitary sewer, a lift station located at the north edge of the development, and 4” PVC <br />forcemain. The lift station will pump the waste through the 4-inch diameter PVC forcemain to the existing <br />10-inch diameter PVC gravity sewer located on Red Oak Lane, just east of 20th Avenue <br />that was installed with the North Pointe development. <br /> <br />The Lift Station location is now proposed at Outlot F. <br /> <br />Comments: <br />1. Applicant shall extend the sanitary sewer on Red Oak Ln further to the east and provide a stub for <br />future connections. <br />Revised. <br />The City of Lino Lakes should consider installing sanitary service stubs to serve the possible <br />future development at 6687 20th Avenue (26-31-22-14-002). It is anticipated that this parcel will <br />develop into five lots that have access off of Red Oak Lane. <br />Per planning comments, these services can be added with final plans. Manhole moved further <br />east. <br />Noted. <br />2. Applicant shall submit a Lift Station Service Area Exhibit. <br />Lift station service area exhibit attached. <br />3. It is anticipated that the lift station in its current position will need to be 3 to 4-ft deeper. The <br />applicant shall review the necessary depth or consider moving the lift station to the area near the <br />western end of Red Oak Lane. <br />See attached service area exhibit. Lowered the line to provide separation from the culvert on <br />abandoned county ditch 47. Deepening the sanitary line creates a deep sanitary line within the <br />site and a secondary sanitary line has been added. <br />Please upsize the force main to a 6” diameter. Trunk credits will apply. <br /> <br />• Transportation <br /> <br />20th Avenue (CSAH 54) is classified as an A-minor Arterial Reliever and Birch Street (CSAH 34) is <br />classified as a Major Collector road. <br /> <br />Per the traffic study, Nadeau Acres will generate approximately 685 new trips per day with 50 new trips in <br />the a.m. peak hours (7-8 a.m.) and 65 trips in the p.m. peak hours (4:30-5:30 p.m.). None of the proposed <br />roadways are expected to exceed their daily capacities. <br /> <br />The study also reviewed the existing and proposed Levels of Service for the 20th Avenue (CSAH 54) and <br />Red Oak Lane intersection and the 20th Avenue (CSAH 54) and Birch Street (CSAH 34) <br />intersection. The proposed Levels of Service do not degrade by more than allowed by the City’s <br />Subdivision Ordinance. <br /> <br />Red Oak Lane, Heritage Avenue, and William Lane are proposed to be 32-ft wide from the back of curb to <br />the back of curb. The two cul-de-sacs, Josephine Court and Norma Way, are both proposed to be 28-ft <br />wide from back of curb to back of curb with cul-de-sac radii of 46-ft from the center to the back of curb. <br />The site will be accessed from 20th’Avenue (CSAH 54). The applicant is proposing widening 20th Avenue to <br />allow for a left turn lane (to Nadeau Acres), a through lane, and a right turn lane (to North Pointe) going <br />northbound and a right turn lane (to Nadeau Acres) and a left/through