Sec. 741-203. - Documents submitted for primary approval.
The primary plat, area map, topographic map, natural infrastructure plan and requisite fee, all in prescribed quantities, shall be provided in addition to the documentation required by the Rules of Procedure. A traffic control plan shall be provided for a subdivision and for other applications proposing a new street or alley. For minor subdivisions, the traffic control plan and the natural infrastructure plan may be omitted.
A. Primary plat. The primary plat shall be prepared by a professional surveyor at a convenient scale of not more than one inch equals 100 feet, and the sheets shall be numbered in sequence if more than one sheet is used with the current page number and total page numbers appearing on each sheet. The plat shall be of such size as is acceptable for filing in the Office of the Marion County Recorder, but shall not be larger than 42 by 48 inches in dimension. The primary plat shall show the following:
1. Proposed name of the subdivision, to be placed at the top of each sheet, and must clearly reference any existing subdivisions or sections (with recorded instrument number) that it abuts.
2. Location by section, township and range, and by other legal description. For verification of plat closure, the text legal description and the annotation shall match exactly.
3. The plat shall be prepared with the permitted tolerances listed in Table 741-203-1:
Table 741-203-1: Permitted tolerances
Calculation of Acreage | 0.001 AC (1/1000th)
Closure of Plat perimeters | ±0.05 feet
Closure of Individual lots, blocks, etc. | ±0.01 feet
4. Name, address, signature, seal and certification of the professional surveyor who prepared the primary plat.
5. Scale, noted in writing and graphically, of the primary plat, including graphic scale, north arrow and date.
6. Boundary lines of the proposed subdivision indicated by solid, heavy lines, based upon a traverse with angular and lineal dimensions shown on the plan.
7. Radii, central angles, tangents, lengths of arcs, curvatures, angles at street intersections and a complete street traverse of each street within and on the perimeter of the plat.
8. Locations, dimensions and names of all existing streets or other public ways, railroad and utility rights-of-way or easements, parks and other public open spaces, permanent buildings or structures, and section and municipal corporation boundary lines within 100 feet of the area proposed to be platted.
9. In the case of a replat, all descriptive lines of the original plat being vacated, shown as dotted lines in relationship to the lines of the new plat, the new plat being shown clearly in solid lines. A copy of the original plat shall be filed with the proposed replat.
10. Boundary lines of adjoining and adjacent unsubdivided and subdivided land, showing owners' names within 100 feet of the area proposed to be platted, indicating the recorded name, date and number of any such subdivided land.
11. Existing zoning of the area proposed to be platted and of land adjoining and adjacent thereto. If the subdivision is in a dwelling district and utilizing the cluster or zero-lot line option, it shall be clearly noted as such.
12. Layout of all streets, indicating the names, widths (pavement and rights-of-way), classifications thereof, and indicating whether public or private.
13. Layout of all access easements, vehicular and non-vehicular, indicating the dimensions and purpose thereof, and indicating whether public or private.
14. Layout and numbers of lots, including accurate dimensions (in acreage or square feet), of lots. The number of lots and range of lot numbers shall clearly be stated. In new developments, lot numbers shall be consecutive within each section or phase, and may not be repeated in subsequent sections or phases within a subdivision.
15. Areas to be allocated for park, school, recreational, and other public and semipublic uses, with the purpose proposed for each such area to be indicated on the primary plat. The size of each such area shall clearly be stated. All areas to be dedicated or reserved for public use shall further be noted in the applicable dedication, deed or covenant.
16. Areas to be allocated as common area or common open space, with the purpose proposed for each such area to be indicated on the primary plat. All areas to be reserved by deed or covenant for common use by owners of land contained in the proposed plat shall further be noted in the applicable dedication, deed or covenant.
17. Areas to be allocated for public service or utility easements, showing accurate dimensions and indicating the type of facility.
18. If the primary plat is to be divided into sections for platting, an indication of the boundaries and numbers of such sections.
19. Floodway or floodway fringe delineation, as established by Section 742-203 (Flood Control Zoning District).
20. Drainage covenant and sanitary sewer covenant, as established by Chapter 561 and Chapter 671 of the Revised Code of the Consolidated City and County.
B. Area map. The area map shall be at an appropriate scale (not greater than one inch equals 1,000 feet) and shall indicate the following:
1. The name and location of the proposed subdivision.
2. The scale of the area map, north arrow, and date.
3. Street, lot and tract lines of parcels of land and subdivisions within 1,000 feet of the area proposed to be platted and between such area and the nearest thoroughfare.
4. The zoning of adjoining and adjacent land within the boundaries of the area map.
5. Existing or proposed park, school, recreational and other public or semipublic use within the boundaries of the area map.
C. Topographic map. The topographic map shall be drawn upon a copy of the primary plat and shall indicate:
1. The name and location of the proposed subdivision.
2. The scale of the topographic map, north arrow, and date.
3. Contours based upon the U.S. Coast and Geodetic Datum or U.S. Geological Survey Datum bench marks at one-foot vertical intervals, showing clearly by flow lines and arrows the drainage pattern of surface water, both natural and proposed, within and through the area proposed to be platted, the location and elevation of such bench marks to be shown thereon. The Administrator may permit two-foot or five-foot vertical contour intervals in areas of very steep slopes, such as ravines.
4. A diagram of the proposed course of surface water drainage from the point where water leaves the proposed plat to a legal ditch, natural stream or public storm sewer, to be shown by flow lines, arrows and descriptive notes.
5. Existing sewers, water mains, culverts and other underground facilities within or adjacent to the tract indicating pipe size, grades and exact location as obtained from public records, together with a sketch plan of any group sewage disposal system, if proposed, that has been approved in writing by the Marion County Public Health Department.
6. If private disposal systems are proposed, the location and results of an on-site soil survey, including a determination of soil load rate, glacial till depth and other drainage characteristics to determine feasibility of an absorption field. This shall be performed for each lot in the location of the proposed absorption field. Such testing shall be conducted by a certified soil scientist, as required by the Marion County Public Health Department.
7. Other significant conditions of the area proposed to be platted, such as watercourses, wetlands, land subject to flooding (both floodway and floodway fringe areas), rock outcrops, wooded areas, wells, houses, and any other structures.
D. Traffic control plan. A traffic control plan shall be required in the case of major subdivisions and developments that will include one or more new streets. The traffic control plan shall be drawn upon a copy of the primary plat and shall indicate the placement of the following:
1. Traffic control street signs and devices;
2. Traffic calming devices;
3. Bicycle facilities;
4. Sidewalks and pedestrian walkways;
5. Transit facilities, such as bus stop pads or shelter; and
6. Street lighting.
E. Natural infrastructure plan. A Natural Infrastructure Plan shall be required in the case of major subdivisions containing more than 20 residential lots and in the case of other developments including more than 15 acres. The natural infrastructure plan shall be drawn upon a copy of the primary plat and shall indicate:
1. Placement of all proposed drainage facilities for the subdivision, indicating type of facility and if the facility is to be designed to be wet or dry;
2. Location of open space areas of the open space common area, indicating size and general improvements.
3. Location of any stream protection corridors in accordance with Section 744-205 (Stream Protection Corridors).
(G.O. 64, 2015, § 2)