Agenda - Public Works Committee - 12/13/2011

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Certificate of Survey Requirements An original copy of the Certificate of Survey from a MN licensed surveyor is required for all new structures, including expansions of existing buildings. The Building Official may, for accessory structures or minor additions (decks, porches, attached garages), waive the Certificate of Survey submittal requirements in favor of an approved site plan indicating the location of existing and proposed structures in relation to lot lines. A. The certificate of survey shall reference and be based on an approved grading plan and shall include at a minimum the following information: 1. Legal description of the property and address 2. Scale, north arrow, and property boundaries 3. Location, by dimension, of all existing structures and utilities on the lot, and the nearest corners of existing structures on adjoining lots 4. Location, by dimension, of all proposed structures. Identify type of the proposed building, such as rambler, lookout, walkout, etc. Show proposed driveway & significant structural features such as garage, deck, retaining walls, and entryways including patio doors, walkouts, & low basement windows. • All entryways shall be a minimum of 18" above the centerline of the street in front of the entry, and 24" above the 100 year flood elevation in locations where flood elevations have been established. 5. Location of all watercourses, lakes, streams, wetlands, ponds, etc. The normal water level, ordinary high water elevation, & 100 year flood plain elevation shall be identified, along with existing water elevation at the time of the survey. 6. Indicate proposed direction of surface water drainage by arrows • Show drainage courses across the lot & their effect on adjacent properties. Include the effects of downstream drainage courses on the lot in question when such swales convey runoff from multiple lots - these major swales shall have a minimum grade of 2%. • There shall be no grades flatter than 1 %. • When grades are less than 2% a certificate of grading, from a registered land surveyor stating that they have surveyed the lot and determined that it contains no grades flatter than 1 % & that it conforms to the approved grading plan, will be required prior to issuance of a certificate of occupancy. • If runoff is directed to any area other than the fronting street, final disposal of storm water shall be shown. • There shall be a minimum 6" slope away from the structure within the first 10' 7. Elevations must be shown at the following locations: • Existing and proposed finished grade at each lot corner • Existing and proposed finished grade at all major corners of structures; both on the lot & on adjoining lots • Street centerline & gutterline at each side lot line extended, and at the center of the driveway extended • Proposed garage floor • Proposed basement/lowest floor