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Certificate of Survey Data Requirements - New Language the applicant shall submit a site survey showing the location of the proposed structure on the lot to the City of Elk River at e time of building permit issuance. All surveys shall comply with the approved development plan on file at Elk River City Hall. Any significant deviation from the development plan shall require a developer's signature authorizing the change and approval by the City of Elk River prior to submitting a survey. The survey shall be certified by a registered Minnesota land surveyor and shall include the following information: 1. _ Scale of drawing. 2. _ North arrow. 3. _ Legal description. 4. _ Dimensions of the lot. 5. _ Provide a benchmark on site of a permanent nature (i.e. top nut of fire hydrant, nail in tree, etc.) 6. _ Existing and proposed elevations at all lot corners. 7. Existing and proposed elevations at house and garage corners. 8. _ Top of curb elevations at the extension of property lines and center of proposed driveway. The center of the proposed driveway shall be permanently marked at the building site. 9. _ Off-set stakes with existing elevations along each side lot line (exception would be a distance greater than 30 feet from the house to the side lot lines). 10. _ Dimensions of the entire building showing cantilevers, bay windows, egress window well locations, and elevations. 11. _ Front, side, and rear setback distances. 12. _ Label all adjacent streets and railroad rights-of-way. 13. Show all ponds, wetlands, lakes, rivers, and creeks/wetland markers. 14. _ List location of 100-year high water level of rivers,lakes, creeks, and wetlands. 15. Show existing easements and drainage ways abutting or within the property (natural or man-made). 46 _ Show proposed decks, porches, driveways, curb cuts, and accessory structures. 7. _ Show drainage arrows. 18. _ Show proposed side lot line elevations and high points. 19. _ Show top of block foundation, garage floor, and lowest floor/opening/entry proposed elevations. 20. _ Show top of block and finished grade elevations of the nearest corners of any adjacent house, side and rear. 21. _ Show the front and rear existing pad elevation and proposed elevations of the abutting vacant lot house pad per approved development plan. 22. Show location and elevations of sidewalk,manholes, catch basins, flared-end sections, and other permanent items directly adjacent to or on the lot (existing or proposed). 23. _ Show location of major grade breaks. 24. Custom wooded lots - indicate location, base elevation size, and type of all trees 6" DBA and larger. 25. Custom lots may require special design and a more detailed building survey which includes information such as tree survey, existing and proposed contours, distinct drainage pattern and landscaping. 26. Indicate retaining walls-need elevations at top and bottom of proposed wall. Maximum retaining wall _ height allowed without an engineer's design is 4 feet. 27. _ Survey is to be drawn to a scale (surveys that shrink or become illegible because of faxing will not be accepted). Design Requirements a. _ 18" minimum,top of curb to garage, measured on the high side, 10 percent maximum. Allow 2 percent minimum on multi-family homes. Exceptions may be allowed on large lots or lots with large front setbacks. b. _ Slope and swale requirements-minimum 1 percent, maximum 3:1. c. _ There shall be a minimum 20 foot flat (Approximate 1-2%slope) area at the rear of all dwellings. d. _ There shall be a minimum 20 foot setback from the 100-year high water level of wetlands. 411k. The maximum width of driveways at the right-of-way is 30 feet. Driveways shall be setback a minimum of 5 feet from the side property line. f. Positive drainage is required with a minimum'h foot fall away from the house to the lot line and show how water will be contained within easement areas. If berms are necessary to keep water within easements,show top and bottom elevations of berms.