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HomeMy WebLinkAbout~Master - Requirements for Platting and Replatting ORDINANCE NO. 693 All ORDINANCE PRESCRIBING THE REOUIREI'MiNTS FOR TIP PLATTING OR REPLATTING OF LA14DS I�J'ITHIN THE CITY OF AMPS, IOWA, RELATING TO STREETS, ALLEYS, BLOCKS, LOTS, PUBLIC GROUNDS, SEWERS AND OTHER UTILITIES, AND RELATING TO RULES AND REGULATIONS GOVERNING PLATS, FILING, AND APPROVAL THEREOF. Be It Ordained by the City Council of the City of Ames, Iowa: Section 1. General ReLmlations. All plats for additions to the City of Ames or subdivisions or replats of additions shall conform. to the "Official City Plan" of the City of Ames, Iowa. The following rules and regulations shall apply to the platting of all lands within the corporate limits of the City of Ames, Iowa. (1) Streets and alleys. (a) Width. The minimuri width of right of way for streets in the business districts shall be seventy (70) feet. The minimum width of the right of way for a major street in a residence district shall be sicty (60) feet. The minimum width of right of way for a minor street in a residence district shall be fifty (50) feet. The minimum width of right of way at the end of a cul-de-sac shall have a radius of fifty (50) feet. The minimum width of right of way for alleys shall be twenty (20) feet. (b) Roadway widths and parkinrl allowances. The widths and number of traffic lanes and allowance for the parking of vehicles on the roadway surfaces of paved or permanently surfaced streets shall conform to the following unit widths: Minimum Width Per Traffic Type of Street Lane Primary road extensions 12 feet Major streets 11 feet Minor streets 10 feet Parking Unit Width Curb Length Allowance Parallel to curb - S feet 23 feet 40 degree angle to curb - 15 feet 12 feet 6 inches 90 degree angle to curb - 19 feet S feet (c) Street Intersections. Intersecting streets shall be at ninety (90) degree angles wherever practicable. (d) Grades. All streets and alleys within the platted area which are dedicated for public use shall be brought to the grades as established by the city at the expense of the owner of the land being platted. The owner may do such work prior to final acceptance of the plat by the city, or he may enter into an agreement with the city, as provided in Section 3 of this ordinance. No street grade shall be in excess of ten per cent (101/.11). (e) Relation to existing streets. The streets and alleys within the area being platted shall conform as nearly as practicable to the alignment and width of existing streets and alleys in adjacent platted areas and shall be extensions of the existing street system. 2 (f) Dead end streets. Dead end streets will be permitted only where necessary to provide access to areas available for future subdivisions. (g) Cul-de-sacs. Cul-de-sacs in general will be permitted when through streets or extensions of existing streets are not practica . (h) Street names. Streets which are obviously in alignment with existing streets shall bear the names of such existing streets. The proposed names of new streets shall be shown on the final plat and such names shall not duplicate or sound similar to existing street names. The council reserves the right to alter or change the proposed names of streets before final acceptance of the plat. (i) Alleys. In general alleys will not be permitted in resi- dential districts. (j) Easements. 11h.ere alleys are not available an easement of not less than five (5) feet shall be granted to the city by the owner on each side of all rear and side lot lines where necessary for public utility requirements. Easements of great- I er width may be required along lot lines or across lots when necessary for the extension of main sewers or other utilities. Subdividers shall secure the required information regarding utility easements from the office of the City Manager before filing the preliminary plat. (2) Blocks. No block shall be longer than thirteen hundred and twenty (1320) feet between street lines except where the topography of the platted area requires greater length. In blocks over seven hundred and fifty (750) feet in length between street lines a right of way of not less than ten (10) feet in width may be required to be dedicated for a crosswalk. (3) Lots. (a) Area and dimensions. The minimum dimensions for residence lots in new additions or subdivisions shall preferably be sixty (60) feet in width and one hundred (100) feet in length. In no case shall any platted lot contain less than five thousand (5000) square feet in area or be less than fifty (50) feet in width at the building line. Corner lots in residence districts shall preferably have a minimum width of seventy (70) feet to provide adequate vision clearance at street intersections. Residence lots on major street intersections and. at other in- tersections having restricted vision clearance due to topogra- phical or other conditions may be required to have a radius of fifteen (15) feet at the street corner. (1,) Building lines. i The proposed building lines and area requirements may be shown on the plat for all lots intended for residential use, but in no case shall they be less than the minimum requirements as provided in the Zoning Ordinance of the City of Ames in effect at the time the final plat is approved by the Council. Build- ing lines and area requirements shall not nullify or set aside any of the present or future requirements of the Zoning Ordinance of the City of Ames. (5) Parks, playgrounds, and school sites. In subdividing land due consideration shall be given to the location or dedication of suitable sites for schools, parks, and playgrounds so as to conform as nearly as possible to the requirements of the "Official City Plan". The subdivider shall consult with the City Plan Commission and secure their recom- mendations as to the location of such sites before preparing the preliminary plat. I I i 3 (6) Acreage additions. When land is subdivided into acreage tracts it shall be so subdivided as to allow for the future streets and the exten- sion of the existing street system through the area. (7) Disposal of sanitary sewage. The owner of land being platted shall make adequate provision for the disposal of sanitary sewage .from the platted area. He shall at his expense construct a sanitary sewer system including all necessary pumping stations, manholes and other necessary appurtenances to provide for the discharge of san- itary sewage from all lots or parcels of land within the platted area to a connection with the city's sanitary sewers. Such sewage system shall be constructed in accordance with the plans and specifications of the city and at the sewer grades as established by the city. The installation of such sewers shall be under the supervision and inspection of the city manager and the owner may be required to pay a reasonable charge for such engineering and inspection service. The City Council may by motion prior to the acceptance of the final plat release the owner from this obligation or any part thereof whenever in their opinion it is not feasible or is impractical to make such installation. in the event that the sanitary sewer system aforementioned has not been installed and accepted by the city prior to the acceptance of the final plat by the City Council, the owner shall before final acceptance of the plat, file with the City Clerk a corporate surety bond or make a cash deposit with the City Clerk in an amount not less than the City °tanager's certi- fied estimate of cost of constructing such a system including an estimated inspection charge. Such bond or cash deposit shall be retained by the city until the work is completed as a guarantee that the work will be completed in an acceptable manner within the time specified in the agreement between the owner and the city as set forth in Section 3 of this ordinance. Section 2. Preliminary Plat. (1) General. The owner of land within the City of Ames proposing to divide the same into three or more parts for the purpose of making an addition to the city or a subdivision thereof, or for building lots or acreages, shall prepare and file in the office of the City Clerk six (6) copies of a preliminary plat conforming in detail to the requirements set forth herein. Before preparing the preliminary plat in detail as specified herein, it is recommended that the subdivider or his represen- tative prepare a sketch plat of the proposed addition or sub- division showing thereon the location and width of existing and proposed streets, and the size and location of proposed lots within the platted area and present such sketch plat to the City Plan Commission and the City 1,1anager for preliminary review. (2) Requirements of the preliminary_tat. The preliminary plat shall be drawn on sheets whose dimensions are eight and one-half (& ) inches by fourteen (14) inches or multiples thereof, and shall include the following information: f (a) The scale used on the drawing. (b) The title under which the proposed addition or subdivision is to be known and recorded. (c) The dimensions of all platted lots and unplatted areas. 4 (d) The location, width, and dimensions of all streets, alleys, and grounds proposed to be dedicated for public use. (e) The location of all property lines, water courses, streets, alleys, public grounds and similar features adjoining the plat- ted area. (f) The location and dimensions of all areas to be reserved for future use as school sites, parks, playgrounds or similar features and which are to be dedicated to the public for such use. (g) The location and size of existing storm or sanitary sewers, water mains, or field drains, within or readily accessible to the platted area. (h) The location and character of all existing easements and those proposed to be provided by the owner for utility purposes. (i) The location, dimensions and present use of existing build- ings within the platted area. (j) The bearing and distance from some monumented block or lot corner within the platted area to some corner of a congressional division within the city. (k) A legal description of the area being platted together with the name or names of the owners and the name and seal of the registered engineer or surveyor making the plat. (1) All elevations shown on the plat, profiles, and cross sec- tions shall be referred to city datum. (3) Profiles and cross sections. The preliminary plat shall be accompanied with two (2) copies of separate drawings showing a profile and cross sections of all streets, alleys, or public ways proposed to be dedicated to public use. The profiles shall be drawn to a horizontal scale of fifty (50) feet per inch and a vertical scale of five (5) feet per inch. The cross sections shall be taken and platted at intervals of not more than fifty (50) feet along the centerline and shall extend the full width of the proposed right of way. They shall be in sufficient detail to permit accurate computations to be made of earthwork quantities for grading. (4) Tentative approval of plat. Upon the filing of the preliminary plat with City Clerk, he shall present such plat to the City Council at their first meet- ing following such filing in his office. The Council shall by motion refer three copies of such plats and accompanying profiles and, cross sections to the City Manager who shall review the same and transmit two copies of the plat together with his rec- ommendations, if any, to the City Plan Commission. i The City Plan Commission shall within thirty (30) days from the receipt of such plats file their recommendations with the City Clerk on the acceptance, modifications or rejection of such plat or any part thereof. The City Council may after receipt of such recommendations from the City Plan Commission, or after thirty (30) days with- out such recommendations, make tentative approval of such preliminary plat as filed or as revised. In the event that important changes or modifications are made in the plat by the Council before making tentative approval_ the Council may cause the revised preliminary plat to be resubmitted to the City Plan Commission in the same manner as provided herein for the preliminary plan. i f 5 The tentative approval of the preliminary plat by the City Council shall not constitute final acceptance of the addition or subdivision by the city. The owner shall within ninety (90) days following the tentative approval of the preliminary plat by the City Council prepare and file the final plat and. other required documents and upon his failure to do so such. tentative approval of the preliminary plat shall be null and void. I Section Final Flat. (1) Requirements for final approval. The owner of the land being platted shall have on file with the City Clerk not less than seven (7) days prior to considera- tion by the City Council of the final acceptance of the plat the following plats, documents, and information in the form and num- ber of copies as hereinafter specified: (a) Nine (9) copies of the final plat. (b) Three (3) copies of all easements for utility or other purposes. (c) Four (4) copies of a proposed resolution to be adopted by the City Council accepting lands to be dedicated for public use. (d) Three (3) copies of an agreement to be entered into between the owner and the City of Ames providing for the grading of streets and installation of a sanitary sewer system and other utilities or improvements as may be required. (e) Four (4) copies of a proposed resolution to be adopted by the City Council accepting the final plat. (2) The owner of the land being platted shall before submitting the final plat for approval cause monuments to be placed within the platted area as follows: Three-quarter (3/4) inch galvanized iron pipe monuments not less than thirty (30) inches in length and driven six (6) inches below the ground surface shall be placed at each block corner, each end of curves and each angle or change in direc- tion along lot lines. One-half (1/2) inch iron rods not less than twenty-four (24) inches in length shall be placed at each lot corner. Lot corners when in place shall be left flush with the ground surface. (3) Final plat. The final plat shall contain all of the information required to be shown on the preliminary plat and in addition the following information: (a) The proposed names of all streets, public ways, and places dedicated for public use within the platted area. (b) The type and location of all permanent monuments at block and lot corners and elsewhere within the platted area. (c) All radii, arcs and chords, points of tangency, and central angles for curved streets and the radii of all rounded curves shall be shown on the plat. (d) The certification of the engineer or surveyor preparing the plat and the date of survey shall be shown. (4) Easements. Utility easements shall convey to the city,its successors and assigns, the perpetual right within the areas shown on the plat and described in the easement, to construct, reconstruct, operate I I 6 and maintain electric lines consisting of poles, wires, cables, conduits, fixtures, anchors and other similar equipment, including the right to trim or remove trees within such areas where neces— sary to secure a clearance of four (4)feet from the wires or poles, together v-1th the right to extend to any telephone, tele— graph, electric or power company the right to use separately or jointly with the city the areas included in the easement for the purposes above enumerated. (K) Acknowledgement of consent and dedication. This document shall state that the person or persons whose names i are affixed to this document and appear on the final plat are the sole lawful owners of such property, and that the plat is with their free consent and in accordance with their desires, and that they dedicate the areas shown on the plat or as set forth in this doctument to the perpetual use by the public for the purpose as stated. I (6) Resolution accenting lands for nublic use. The resolution for adoption by the council shall provide for the acceptance by the City of Ames, Iowa of all the lands shown on the plat or as described in the resolution within the platted area which are dedicated for the perpetual use by the public. If dedicated for a specific use by the public such use shall be described and set forth in the resolution. (7) Agreement for �-_radingof streets and installation of sewers or other improvements. A proposed form of agreement between the owner and the city shall be prepared setting forth the conditions for securing the grading of streets and installation of sewers and other required improve— ments within the platted area, a time limit for doing such work, the amount of surety bond to be filed or cash deposit made and the right of the city to perform. such work and recover the cost thereof from the sureties on the bond or by the cash deposit. (8) Resolution of acceptance of lie at. The resolution for accepting the plat as prepared for council adoption shall describe the property included in the area being platted, shall state that the plat has been submitted to the City Plan Commission and that they have acted thereon as provided by law, that the owner has complied with all conditions as pre— scribed in this ordinance or as required by Chapter /+09, Code of Iowa 1950, that the plat is hereby approved and the mayor and clerk directed to certify the resolution affixed to the plat. Section . Final Approval. The passage of the resolution accepting the plat shall constitute final approval of the platting of the area shown on the final plan, but the owner shall cause such plat to be recorded in the office of the county recorder of Story County, Iowa, as provided in Chapter 40% Code of Iowa 1950, and shall file satisfactory evidence of such recording in the office of the city manager of Ames, Iowa before the city shall recognize the plat being in full force and effect. Section 5. All ordinances or parts of ordinances in conflict with the provisions of this ordinance are hereby repealed. Section 6. This ordinance shall be in force and effect from and after its passage and publication as provided by law. i Passed the loth day of July , 1950. Mayor Attest: ty Clerk June 29, 1950 Moved by De La Hunt, seconded by Winfrey, that Ordinance No. 693 be passed on its first reading. Voting Aye: Griffith, Bauge, De La Hunt, Horning, Winfrey, Moore Voting Nay: None Mayor declared Ordinance No 693 passed on its first reading only. July 10, 1950 Moved by Winfrey, seconded by De La Hunt, that the rules be suspended, the third reading omitted, and Ordinance No. 693 placed on final passage. Votin" Aye: Griffith, Bauge, De La Hunt, Horning, Winfrey, Moore Voting Nay: None Moved by Winfrey, seconded by Moore, that Ordinance No. 693 do now pass. Voting Aye: Griffith, Bauge, De La Hunt, Horning, Winfrey, Moore Voting Nay: None Mayor declared Ordinance No. 693 passed. 1, J. W . .-Prather, City Clerk of the City of Ames, Iowa, do hereby certify that the above and foregoing Ordinance No. 693 was duly and properly passed at a meeting of the City Council on the 10th day of July, 1950, and published in the Ames Daily Tribune on the /-311%-1 day of July, 1950. Prather, City Clerk