1121.02 GENERAL.

   The subdivider or developer of any road, street or alley shall submit to the engineer of jurisdiction for his approval, a set of construction plans and specifications for the improvement of the road, street or alley prepared by a registered professional engineer and/or registered professional surveyor, pursuant to the provisions of Ohio R.C. 4733.17. A reasonable amount of time must be allowed for review of the plans prior to the beginning of construction.

   The construction plans shall include title of the plan, typical sections, plan and profile view, miscellaneous engineering details and estimate of quantities. Cross sections will be submitted upon request by the engineer of jurisdiction. All typical sections and major engineering details to be used on any particular road, street or alley shall be approved in advance by the engineer of jurisdiction or his representative before completion of the construction plans.

   When the subdivider or developer submits, for approval, a construction plan for street improvements for a part of a proposed subdivision area, preliminary street grades and proposed drainage facilities for the entire subdivision area shall also be presented.

   Where deemed desirable the engineer of jurisdiction or his representative may require the construction of improvements in or vacation of part or all of any intersection roads, streets or alleys in order to assure that no hardships of added expense be endured by abutting property owners or the local governing body at some future date.

   All materials and construction procedure shall be in accordance with the improvement standards herein and shall be approved in advance by the engineer of jurisdiction or his representative.

   (a)    Subdividers Agreement, Performance Bond and Inspection Fee. Before any subdivision plat or construction plan is given final approval, the subdivider or developer shall have executed a performance bond for the amount of the estimated construction cost, and an inspection fee for the amount of the estimated inspection cost shall be deposited with the engineer of jurisdiction before authorization of any construction plans. Any excess fee shall be returned on completion.

   (b)    Drawings. The construction drawings shall be made with India ink or some other equally substantial and distinct material from which clear and legible prints may be obtained. Freehand linear drawing must not be attempted, nor should other principles of good surveying, engineering or draftsmanship be offended. The sheets upon which the construction drawings are made shall measure either eighteen inches by twenty-four inches or twenty-four inches by thirty-six inches. A poorly drawn or illegible plan is sufficient cause for rejection.

   (c)    Title of the Plan. The title of the plan must contain the name of the subdivision, road or street names, township, county and location plat. Space shall be provided on the title sheet or the first sheet of the plan for approval by the proper authorities.

   (d)   Typical Sections. The typical sections shall meet the current requirements as set forth and the engineer of jurisdiction may require that any typical section, which may be contiguous to a proposed section or existing section, within the corporate limits of the City, be of the same type and design as that of the City. Curb or curb and gutter shall be required as part of any road or street construction. Sidewalks shall be provided unless waived by the Planning Commission.

   (e)    Plan and Profile. The plan view shall be drawn to a scale of 1" = 50', or larger. The plan view shall show the proposed road, street or alley alignment, right-of-way and pavement widths, centerlines, bearing, stationing, curve or radius data, existing and proposed drainage. Any other significant feature or factor, shall also be shown on the plans. The centerline of road, street or alley construction shall coincide with the centerline of the right of way.

      The profile view shall have a horizontal scale equal to the plan scale and a vertical scale of 1" = 5', or larger. The existing and proposed centerline profile, elevations, gradient, existing and proposed drainage lines and vertical curves shall be shown. The maximum street gradient shall be 0. 50%. Any change from same shall be with the approval of the engineer of jurisdiction or his representative. When establishing road, street or alley gradients, fullest consideration shall be given to the abutting property.

      Vertical curves shall be used at all points on the gradient where the algebraic difference is one percent (1%) or greater. The minimum length of any vertical curve shall be 100 feet. The minimum non-passing sight distance shall be 200 feet on vertical curves.

   The following Engineer's certificate shall be placed on subdivision improvement plans in accordance with this section.

ENGINEER'S CERTIFICATE

I HEREBY CERTIFY THAT THESE IMPROVEMENT PLANS HAVE BEEN PREPARED BY ME IN ACCORDANCE WITH THE SUBDIVISION CODE OF THE CITY OF MANSFIELD, AS AMENDED, AND THAT SAID PLANS ARE CORRECT.

                  BY___________________________

                   REGISTERED PROFESSIONAL

      SEAL             ENGINEER NO.______________

(Ord. 64-222. Passed 9-15-64.)

   (f)    Insurance. The subdivider and/or contractor or contractors employed for the construction of the improvements required by these regulations shall furnish the City evidence of the following insurance coverages:

      (1)    Contractor's comprehensive public liability insurance shall provide for a limit of not less than five hundred thousand dollars ($500,000) for all damages arising out of bodily injuries to or death of one person, and subject to that limit for each person to a total limit of one million dollars ($1,000,000) for all damages arising out of bodily injury to or death of two or more persons in any one accident.

      (2)    Comprehensive automobile liability insurance shall provide for a limit of not less than five hundred thousand dollars ($500,000) for all damages arising out of bodily injuries to or death of one person, and subject to that limit for each person to a total limit of one million dollars ($1,000,000) for all damages arising out of bodily injury to or death of two or more persons in any one accident.

      (3)    Comprehensive property damage liability insurance providing for a limit of not less than five hundred thousand dollars ($500,000) for all damages arising out of injury to or destruction of property in any one accident, and, subject to the same limit per property, for a total (or aggregate) limit of one million dollars ($1,000,000) for all damages arising out of injury to or destruction of all property in any one accident. The insurance hereinbefore specified shall be with an acceptable insurance company authorized to do business in the State and shall be taken out before work is commenced and kept in effect until all work required to be performed under these regulations is satisfactorily completed.

   Such insurance as hereinbefore specified shall hold harmless the City and all City officials and their respective agents and representatives for, or on account of negligence of the subdivider, contractor(s) and/or subcontractor(s). A copy of the current insurance certificate(s) shall be filed with the City Engineer. (Ord. 90-054. Passed 4-3-90.)

1121.03 MISCELLANEOUS ENGINEERING DETAILS.

   (a)    Drainage. The subdivider shall provide all necessary facilities to assure complete drainage in and adjacent to his property. The subdivider shall submit all drainage calculations along with a topographic map showing all areas tributary to the overall drainage system and to the actual street drainage.

   Storm drainage shall not be permitted to empty into any sanitary sewer system.

   The storm water in the drainage system shall be determined by the subdivider using a ten-year storm frequency and suitable run off factors for completed development both within the subdivider's property and all lands upstream from the subdivider's property. If the design storm flow is calculated in an amount which can be conducted adequately by a forty-eight inch conduit or less, then the developer shall install a conduit of sufficient capacity up to forty-eight inches in size to conduct this drainage on and through the subdivider's property. If the design flow is calculated in amount in excess of the capacity of a forty-eight inch conduit, then the subdivider must provide a conduit or an open drainage channel treatment designed as follows:

      (1)    Open channels with grades less than one and one-half percent (1.5%) shall have the sides and bottom protected by seeding and mulching, Item 659. Riprap, Item 601, shall be furnished and installed as required.

      (2)    Open channels with grades between one and one half percent (1.5%) and four percent (4%) shall have the sides and bottom protected by sodding, Item 660. Riprap, Item 601, shall be furnished and installed as required.

      (3)    Open channels with grades in excess of four percent (4%) shall have the sides and bottom protected by reinforced Portland cement concrete, Item 601.

   The subdivider shall provide easements for all storm water conduits or open channels located on privately owned property.

   Where a public storm water sewer is reasonably accessible or has been planned and financed, as determined by the engineer of jurisdiction, the subdivider shall extend and connect with such storm water sewer and shall provide such channel or conduit and appurtenances as are necessary in accordance with other stipulations of the Subdivision Code.

   There shall be sufficient inlets on any conduit system, as substantiated by the engineer, to provide adequate surface drainage. All trenches for water lines, sewers, laterals, utilities, etc. within the pavement or driveway areas shall be backfilled and compacted with granular material meeting Item 310, subbase, or Item 411, stabilized crushed aggregate, to a point three feet outside the back of curb.

   All circular conduits shall be reinforced concrete pipe with sealed joints or smooth interior corrugated polyethylene storm sewer pipe. The minimum diameter shall be not less than twelve inches. Where special drainage designs are necessary such as masonry or concrete structures, etc., such designs in detail shall be submitted to the engineer of jurisdiction for approval in advance of the completion of the construction plans.

   (b)    Flood Plain. If any portion of the land within the subdivision is subject to inundation or flood hazard by a storm water, such fact and that portion shall be clearly indicated on the subdivision plat. Land subject to flooding shall not be platted for residential occupancy or for other such uses which may increase the danger to health, life or property or may aggravate the flood hazard.

   (c)   Intersection. The minimum curb radius shall be twenty-five feet measured to the back of curb. An area of clear vision free of shrubbery, trees and all other obstructions at street intersection shall be provided.

   (d)   Driveways. The maximum grade on driveways shall not exceed twelve percent (12%). A residential drive shall have a minimum width of sixteen feet at the curb and ten feet at the back of sidewalk. The drive section between the curb and sidewalk shall be a minimum of six-inches Portland cement concrete Item 452, or six inches stabilized crushed aggregate, Item 411 plus two and one-half inches asphalt concrete surface, Item 404.

   (e)    Sidewalks. Sidewalk shall be composed of a minimum of four-inch thickness of Portland cement concrete except at drives the thickness shall conform to the drive thickness. The sidewalk shall be a minimum of four feet wide. The inside edge shall normally be placed at least five feet from the face of curb and the outside edge no closer than one foot to the right-of-way line.

   (f)    Underdrains. Six-inch diameter pipe underdrains installed a minimum of three feet below subgrade shall be required under all pavement in order to provide satisfactory subgrade drainage. The estimate of quantities shall include the necessary materials to provide this underdrain under all pavement.

   (g)    Guard Rail and Seeding, etc. The necessity of guard rail, seeding, type of backfill or other special conditions, shall be determined with the assistance of the engineer of jurisdiction or his representative before completion of the construction plan.

   (h)    Cul-de-sac. The paved area within the circular space at the termination of the cul-de-sac shall have a minimum radius of thirty-five feet.

   (i)    T-Turn Arounds. T-turn arounds may be required by the City Planning Commission as a temporary measure at the end of streets where a future extension is anticipated into adjacent land.

   The location and design of T-turn arounds shall be determined with the assistance of the engineer of jurisdiction or his representative. The T-turn arounds shall extend the entire width of the right of way and shall have a minimum width of fifteen feet along the property line with the flared portions rounded by a minimum radius of fifteen feet.

(Ord. 06-282. Passed 12-19-06.)

1121.04 ESTIMATE OF QUANTITIES.

   An estimate of the quantities of all work specified or indicated on the construction plans shall be shown along with estimates of construction cost.

(Ord. 64-222. Passed 9-15-64.)

1121.05 MATERIALS AND CONSTRUCTION PROCEDURE.

   (a)   Materials. Materials shall meet the requirement and shall be in accordance with the "Material Details" of the current volume of the "Construction and Material Specifications", State of Ohio, Department of Transportation. The materials will be referred to by material grade or section number of the same current volume.

   (b)    Field Construction and Engineering. All items of work covered and stipulated in the construction plans, altered or extra work shall be performed in accordance with the lines, grades, typical cross sections and dimensions shown on the construction methods set forth in the State of Ohio Department of Transportation "Construction and Material Specifications". All streets shall be graded the full width of the right of way. The setting and marking of all line, profile and grade stakes necessary for the proper prosecution of the work in accordance with the construction plans will be performed only by an authorized engineer or surveyor. Should any misunderstanding arise, as to the intent or meaning of the construction plans, or any discrepancy appear in same, or in the proper method of setting and marking of the construction stakes, the decision of the engineer of jurisdiction in such cases shall be final.

   (c)    Inspection. Inspection of the work shall be made by the engineer of jurisdiction or his representative. Forty-eight hours notice will be required before any work of inspection takes place. Failure to comply with the above may result in the rejection of the work and the project. Failure to reject any defective work or materials shall not in any way prevent later rejection when such defects are discovered, or obligate the governing body to final acceptance. All costs of inspection shall be charged against the developer.

(Ord. 73-499. Passed 12-18-73.)

1121.06 SURVEY AND PERMANENT MONUMENTS.

   (a)    Location of Survey Monuments. One monument satisfactory to the engineer of jurisdiction shall be placed at each corner and at each change in direction of the boundary; and one such monument shall also be placed at each street intersection on the right-of-way line and at the beginning and end of curves on the right-of-way line.

   In addition, all lot corners must be identified with three-fourths inch diameter pipe markers.

   (b)    Permanent Monuments. Permanent monuments shall be placed in the same locations as required for survey monuments. A permanent monument shall be concrete with a minimum size of six inches diameter by thirty inches long with a one-inch reinforcing bar or pipe cast in the center. The top of all permanent monuments shall not extend above the finished grade.

   (c)    Certification of Permanent Monuments. Before final acceptance of the street improvements by the local governing body, the subdivider or developer shall, through a registered engineer or surveyor, certify to the local governing body that all required permanent monuments are in place or that those removed during construction have been replaced.

(Ord. 73-499. Passed 12-18-73.)

1121.07 ASSURANCE OF COMPLETION OF IMPROVEMENTS.

   No lot, proposed lot or parcel of land which is subject to these regulations shall be sold or leased nor shall there be any building permit issued for the improvement of such lot or parcel of land until the improvements required by the Subdivision Code, or assurance of their completion have been completed. The assurance of completion of improvements shall be satisfied by the furnishing of a performance bond or other guarantee.

(Ord. 64-222. Passed 9-15-64.)

1121.08 REDUCTION OF BOND.

   When the improvements covered by bond, personal fidelity or property bond have been partially completed the Engineer shall be given a notice and shall make any and all inspections necessary to determine that such improvements conform to all standards and specifications of this Code and shall within fourteen days of receiving notice of partial or total completion cause such bond to be reduced or released or give a written report to all parties setting the reasons for refusing to do so. (Ord. 64-222. Passed 9-15-64.)