(a) Material and General Contents. Construction drawings shall be drawn with black reproducible ink or linen (tracing cloth) or other suitable material as determined by the Planning Director or authorized representative along with the County Engineer and/or County Sanitary Engineer. The material shall be 24" x 36" in size and shall generally include a title sheet, location sketch, existing site plan, proposed site development plan, plan and profile, cross sections, typical sections, summary of quantities, standard drawings and all other pertinent information requested and deemed necessary by the Commission, County Engineer and/or County Sanitary Engineer. Design and drainage calculations shall be a part of the construction drawing submission by the subdivider's engineer.
(1) Complete construction drawings for the entire project shall be submitted at one time. Partial submittals are not acceptable because of delays in the Review and Approval Process.
(2) The subdivider shall submit one print of the overall preliminary plat as approved by the Commission along with a copy of the letter granting the approval, before any drawings are accepted for review and approval. If the Commission's conditional approval required modification of the preliminary plat as originally submitted, then any copy attached to the construction drawings must contain the stamp "Valid Revised Preliminary Plat" along with the signature of the Planning Director or authorized staff representative with date.
(b) Title Sheet. The title sheet shall include a location sketch, summary quantities, typical sections, list of streets, title block, approval block and other pertinent information deemed necessary by the County Engineer.
(c) Existing Site Plan. This plan shall include all existing features within the proposed subdivision limits and any facility which will be directly affected by its development exclusive of location. Minimum information required shall be existing contours at two foot intervals, existing watercourses, structures, drainage facilities and utilities within the subdivision.
(d) Proposed Site Development Plan. This plan shall include all proposed features within the limits of the subdivision such as street pattern, storm system and appurtenances, sanitary sewer system, waterlines, and any utilities that may cause conflicts in the construction or maintenance of the underground facilities. This overall plan shall be included with the construction drawings and in conformance with the plan and profile drawings.
(1) Final contours at two foot intervals shall be shown and elevations on lot corners may be requested by the Commission. The final contour intervals may be modified by the County Engineer and/or County Sanitary Engineer when need be.
(2) The preferred Site Plan scale shall be 1" = 100' or 1" = 200' when approved by the County Engineer and/or County Sanitary Engineer. The Site Plan shall be all inclusive and on one sheet.
(3) The proposed site development features shall include, but not be limited to, sediment control, floodway management and storm water retention facilities, preservation of specific trees or natural features, the establishment of preservation easements and lot landscaping planning tools including the creation of public land, as determined by the Commission and the County Engineer.
(e) Street Plan. The street plan shall be drawn by a Registered Engineer and shall show the location in relation to street lines or pavements, curbs, sidewalks, storm sewers, sanitary sewers and water lines with all facilities and appurtenances. All outlets for storm drainage shall be clearly indicated on the plan. The scale be at least 1" = 50'
(f) Intersection Details. Intersection details shall be shown for all intersections. Details shall be drawn at a scale of 1" = 20' and shall show return radius elevations at maximum twenty-five foot intervals and also all existing or proposed underground utilities.
(g) Profile. Profiles are required for pavements, sidewalks, walkways, storm sewers and sanitary sewers and shall be shown on the same sheet as the plans. The scale shall be 1" = 5' vertical.
(h) Elevations. All elevations are to be referred to the United States Geodetic Survey Datum. Ground and invert elevations to feet and hundredths shall be shown at fifty foot intervals or half stations and at all manholes for storm and sanitary sewers. Ground and grade elevations to feet and hundredths shall be shown at fifty foot intervals for sidewalks and pavements with grade elevation for vertical curves shown at twenty-five foot intervals.
(i) Grades. All grades shall be shown in percent.
(j) Vertical Curves. The length of all vertical curves and the grade of the intersecting tangents shall be shown.
(k) Location Sketch. Location sketch shall be shown on the title sheet and indicate location of the subdivision with respect to existing streets or roads, and other landmarks in the immediate vicinity.
(l) Typical Sections. All typical sections shall be shown on the title sheet if possible and shall conform to the minimum standards currently required by the Mahoning County Planning Commission for various types of pavements and sidewalks.
(m) Summary of Quantities. The summary of quantities shall be shown on the title sheet or separate sheets if need be.
(n) Cross Sections. All cross sections shall clearly show the existing and proposed sections at fifty foot intervals for pavements and sidewalks within the limits of the right-of-way or setback line, if grade change so dictates.
(o) Design and Drainage Calculations. Calculations shall be drawn on 24" x 36" linen (tracing cloth) or other suitable material (see subsection (a) hereof) in black, reproducible ink and included as part of the construction drawing submission. Complete tabulation of all roadway, pavement, drainage, miscellaneous and special construction items shall be included in the plan.
(p) Detailed Drawings. All catch basins and manholes, inlets, headwalls, retention chambers, pavement, sidewalks, driveways and any other pertinent facility or structure deemed necessary by the County Engineer and Commission shall be drawn on 24" x 36" linen or other suitable material in black reproducible ink and included as a part of the construction drawing submission.
(Ord. 88-1. Passed 6-23-88.)
SURVEY DRAWING
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TITLE SHEET
PLAT NAME _______________ TOWNSHIP ________________
MAHONING COUNTY, OHIO
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