The site plan requirements for single, two and three-family dwellings shall be prepared in strict conformance with the "Sample Site Plan for Single-Family, Two-Family Dwellings and Three-Family Dwellings" on file with the building department and shall include the following:
(a) The plan shall show the existing topography of the lot and land adjacent thereto as indicated, buildings adjacent thereto, proposed finish yard elevations at points indicated, proposed finish floor elevations, proposed basement floor elevation, proposed drainage swales, driveway, driveway catch basin, walks, building storm sewer, sanitary sewer, waterline, electric service line, telephone service line, rear yard basin, when required and any other utilities. If the lot is in a development or subdivision, this plan shall be in addition to the mass grading plan and the existing elevations shown shall be those elevations as existing at the time of application for building permit. The final lot grading shall be in general conformance with the surrounding lots and mass grading plan. An elevation at the building setback line shall show the front elevations of the house in relation to the existing or proposed grading of the adjacent lots and their houses either existing or under construction. In addition to the elevations shown, the plan shall also show the existing and proposed contours at one foot intervals. For large size lots, the existing elevation and contours need not be shown more than one hundred feet beyond construction limits and the required sheet size of the plan may be larger.
(b) Each lot shall be shown to be graded so that the front yard slopes toward the street wherever possible and that the ground slopes away from the building. Side yard swales shall be constructed and maintained between all houses to a minimum depth of three inches below the lower house's finish grade and shall be deep enough to drain the swale in the rear of the house.
(c) Where the rear yard slopes towards the house, a swale shall be constructed at least thirteen feet in the rear of the house to a minimum depth of three inches below the finish building grade of that house and shall drain to the side yard swales.
(d) In a case where lots behind the subject lot are higher in elevation and the rear yards of the higher lots slope toward the rear of the subject lot, swales on the lower lot or lots shall be constructed along the side lot lines with an average depth of three inches below the lowest adjacent lot surface at the building and shall extend from the front lot line to the rear lot line.
(e) Where the rear yards slope toward the rear of the lot and the method of grading described above is not possible, a catch basin shall be constructed in a swale constructed along the rear lot line. In subdivisions the maximum distance between catch basins along the length of any such rear swale shall be 100 feet and each lot shall have a catch basin at its rear lot line. Catch basins shall be either constructed during the development phase or the building phase, but shall exist prior to the issuance of an occupancy permit. Each such swale and catch basin shall be maintained by the property owner to insure effective and total storm water control. In a development the center of the swale may be along the property line and in any other case it shall be at least six feet, but not more than ten feet, onto the property being developed and a minimum of four inches below the lower property.
(f) For additions to existing dwellings and detached garage construction on an existing site, the site plan may be waived, but site drainage shall be maintained in accordance with the above.
(g) All lots shall be finish graded in accordance with a similar plan to that sample nearest resembling the lot to be graded as shown on the attached sample grading plans. No yard slope shall exceed a one foot rise vertically for a five foot horizontal distance when possible.
(h) All sanitary sewer house connections shall be indicated on the site plans as follows:
(1) From the curb connection to the front of the dwelling or to the individual waste water system if approved shall be shown.
(2) If a central collection system (street sanitary sewer) is to be used, the elevation of the invert of the nearest manhole and the estimated invert elevation of the curb connection invert shall be shown. If an individual waste water system approved by the County Board of Health is to be used, the elevations and sizes of the septic tank tops, bottoms, inlets, and outlets shall be shown including splitter box inlets and outlets, distribution box inlets, and outlets, inspection ports and all pipe lines including materials and sizes or evaporation, transpiration trench and filters or details of other approved system shall be shown in detail.
(3) The site plan shall show the location of the test tee, two feet minimum in the front yard from the street right of way and the invert elevation at the front of the building, which shall be below the building footing.
(4) The grade of the house connection shall be a minimum of one percent.
(5) The following shall not necessarily be shown on the plan, but shall be required construction.
A. Pipe materials shall be five inch sanitary sewer extra strength vitrified clay pipe with plasticized joints meeting the pipe requirements of ASTM-C 700 ES and joint requirements of ASTM-C 425.
B. The main line shall not be located under driveways unless otherwise approved by the City Engineer.
C. The top of the test tee shall be plugged, which joint material shall be ASTM-C 425, and shall be eight inches below the finish surface grade.
D. Any storm water accumulating in the basement area during construction shall be pumped or otherwise directed into the storm sewer system.
E. The water tightness test required of the street main shall be required of the house system prior to the time the connection is made at the street and under the direction of the City Engineer. All costs shall be born by the builder.
F. The foundation shall contain two five-eighth inch round steel reinforcing rods where it crosses the sanitary sewer trench.
(i) All storm sewer house connections shall be indicated on the site plan as follows:
(1) From the curb connection or outfall point to the front of the dwelling and showing the location of the test tee, driveway catch basin, downspout system and any yard drains connected thereto.
(2) If a curb connection exists, the invert elevation of the nearest manhole and the estimated invert of the curb connection shall be shown. If a ditch or other "outfall" discharge point is proposed to be used, the invert of the ditch or other discharge point and the proposed invert elevation of the storm sewer house connection shall be shown. If the storm sewer is shallower than the lower elevation of the footer, a sump pump is to be installed inside basement to discharge into the storm sewer.
(3) The location of the test tee shall be two feet minimum in the front yard from the street right-of-way line and the invert location at the front of the building, which shall be the elevation of the bottom of the lowest footing shall be shown. If the storm sewer is shallower than the lower elevation of the footer, a sump pump is to be installed inside basement to discharge into the storm sewer.
(4) The grade of the connection shall be a minimum of one percent.
(5) The following shall not necessarily be shown on the plan, but shall be required construction:
A. Pipe materials for the main line from the curb connection to the front of the house shall be six inches extra strength vitrified clay pipe meeting ASTM-C-700 ES requirements with performed bituminous joints.
B. The main line shall not be located under the driveway unless approved by the City Engineer.
C. The top of the test tee shall be plugged and shall be eight inches below the finish surface grade.
D. Footer drains shall be a minimum of four inches diameter; may be of corrugated flexible plastic pipe or other material approved by the Building and Zoning Inspector and backfilled with No. 8 or 9 gravel aggregate to the height of fourteen inches over the pipe. The footer drain shall connect to the house storm sewer connection.
E. A downspout drainage system and yard drainage system shall be constructed and connected to the house storm sewer at a double "wye" branch provided in the house connection at a point a minimum of ten feet downstream from the point the footer drain connects. If a rear yard drain is planned to be connected, the pipe size shall be a minimum of six inches. The pipe size for roof discharge drains and driveway catch basins shall be a minimum of four inches. If the downspout drainage system is installed over basement excavation backfill, a rigid polyvinyl chloride pipe ten feet or longer with sealed joint gasket shall be used, meeting the requirements of ASTM D-2729 PVC Type 1, Grade FR10. In other cases extra strength vitrified clay pipe with slip seal joints shall be used.
F. In front of each garage, a catch basin, not less than ten inches in diameter or less than thirty inches deep shall be installed in the driveway and connected to the storm drainage system when the driveway does not slope to the street, A trench drain may be required by the City Engineer across the full length of the garage door and not less than twelve inches from the face of the garage door for a driveway of a dwelling which is three feet or more below the level of the street at the garage floor level.
G. The minimum grade of the downspout drainage system and the yard drainage system shall be two percent.
(j) The water supply line from a central system shall be separated from the sewer systems by a minimum of eighteen inches on undisturbed ground. This may be in the same trench at one side of the sewers on a bench of undisturbed earth.
(k) All street sidewalks in front of the house shall be four feet wide and be constructed of a minimum of four-inch thick Portland cement concrete meeting the requirements of the Ohio Department of Transportation Specification (herein referred to as O.D.O.T. Spec.) 608. Crack controls shall be at fifteen foot intervals and score marks shall be at five foot intervals. Where the driveway crosses the walk, it shall be a minimum of six inches thick. Sub-base shall be a minimum of one-inch thick granular material.
(l) On-site sidewalks shall be a minimum of four inches thick and thirty inches wide and otherwise conform to the material and workmanship requirements listed in subsection (k) hereof. On corner lots, sidewalks shall be provided along both street frontages and at the corner shall be extended to the street with a sloped section.
(m) Where front yard setbacks are less than one hundred feet, driveway aprons shall be a minimum of six-inch thick concrete and driveways shall be a minimum of four and one-half inch thick concrete or two-inch thick asphaltic concrete on a six-inch thick aggregate base, all of which shall conform to the material and workmanship requirements specified in subsection (k) hereof and O.D.O.T. Spec. 404 and 304.
Driveway width shall be a minimum of ten feet wide and the apron width at the curb shall be a minimum of ten feet wider than the driveway width at the sidewalk. Where front yard setback requirements are one hundred feet or more, minimum driveway width shall be eight feet and the driveway material shall be crushed aggregate to a minimum compacted thickness of six inches (O.D.O.T. Spec. 304). However, the first forty-five feet of driveway and apron measuring from the street shall be paved with a four and one-half inch minimum of concrete or two-inch thick asphaltic concrete on a six-inch thich aggregate base (O.D.O.T. Spec. 304 and 404). Where a driveway apron crosses a roadway drainage ditch, the minimum pipe size shall be twelve inches, but the City Engineer shall determine the size based on ditch drainage flows which may require a larger size pipe. At the time of any excavation for foundations or footers, a temporary drive composed of four-inch thick crushed aggregate (O.D.O.T. Spec. 304) shall be constructed from the street to the building area and shall be so maintained with an aggregate surface.
(n) All roof drainage shall be collected by downspouts and directed into the storm sewer drainage system.
(o) All construction in designated flood plain areas shall be in accordance with the requirements of the National Flood Insurance Program.
(p) Prior to the issuance of an occupancy permit, iron lot pins shall be installed on all lot corners by the builder as shown on the building site plan and verified by the Building and Zoning Inspector.
(q) The site plan shall indicate all existing curbs, walks, water service connector boxes, waterline valve hydrants and manholes located in the street right of way adjacent to the lot. All such appurtenances shall be protected by the builder during construction and any damage to them shall be repaired by the builder and where repaired, such existing appurtenances reset by the builder to proper grade prior to the issuance of an occupancy permit.
(r) All street trees shall be shown with spacing as required by the subdivision regulations on the plat and shall be planted prior to the issuance of an occupancy permit.
(Ord. 54-1978. Passed 7-25-78.)
(Ord. 54-1978. Passed 7-25-78.)