01-25-2017 Council Packet - Laserfiche WebLink

Home Browse Search

2 of 3 10062 Flanders Court NE – Blaine, MN 55449 – Ph: (763) 780-0450 Fax (763) 780-0452 2. It may be prudent to provide a fence along the top of the wall. 3. Spot elevations and drainage arrows should be provided along the north wall to ensure that runoff from the back of the buildings and north green areas is conveyed along the wall and into the pond or other collection system on site. Stormwater cannot be discharged over the wall to the private property to the north. 4. As shown the retaining wall is within the drainage and utility easement. The City does not take responsibility for any impacts or maintenance of these walls in the future. Ongoing maintenance should be covered by the association documents or covenants. 5. The garage floor elevation of the southeast building should be reviewed as it appears there will be backfall on the west side of the westerly most driveway to the building. 6. Spot elevations and drainage arrows should be provided between the two buildings south of the private street to ensure drainage between the buildings. 7. The Emergency Overflow route for the pond should be noted on the plan. Utility Plan 1. The applicant will need to provide a copy of the Ramsey County permits for connection of utilities and access on the County right-of-way. 2. Tracer wire is required on all sanitary sewer lines and any water line that is not ductile iron or copper. 3. The connection to the existing sanitary sewer line must be with an integral base with waterproof boot connections for all pipes. 4. The elevations listed for storm structure inverts and the pipe lengths and grades do not match. All this information should be reviewed and corrected. Some issues are as follows: a. Backfall exists between CB5 and the pond FES. b. The storm pond outlet pipe conflicts vertically with the storm line between CB5 and CB4. c. The storm pond outlet pipe conflicts vertically with the storm line crossing between CBMH3 and CB2. 5. A tenth of a foot fall across sanitary manholes should be provided for in the design. We would also recommend the outlet pipe in all storm structures be one tenth lower than the other pipes if the design allows. 6. A profile view of the improvements should be provided indicating street centerline and grades, sanitary mainline, watermain, and storm sewer mainline. 7. It is unclear if the applicant is requesting the City accept the sanitary sewer, watermain, and storm sewer as public improvements to be maintained by the City in the future. Because the street is proposed as private we would recommend the storm sewer system remain private as well. If the applicant would like to turn the watermain and sanitary sewer improvements over to the