After approval of the tentative plat, the subdivision may be laid out, subject to the following general rules which shall apply to each such layout:
(A) Each lot shall front on a road, street or parkway.
(B) Provisions shall be made for direct connections with the principal streets in adjoining subdivisions, without offsets. Where practicable, streets shall be provided having center lines on section, quarter-section or eighth-section lines. Such streets shall be extended to the boundaries of the subdivision.
(C) Where conditions warrant, the subdivider shall provide one-half the width of streets bordering the subdivision.
(D) Private roads and streets shall be permitted only when the subdivider permits sufficient evidence to the city that there can be no public interest in such private road or street.
(E) The width of streets shall conform to the following:
(1) On any existing state bond issue or federal aid road within the city which has been surveyed, laid out, constructed or reconstructed prior to the time when approval of the tentative plat is given by the city, and on which roads the width of the right-of-way has been specifically established by recorded plats and dedications thereof, the new lot or property line adjacent thereto shall be the established right-of-way line, except that in no case shall the lot or property line adjacent thereto be nearer than 50 feet from the survey line or center line of such right-of-way as shown and referred to in the dedication and recorded plat thereof.
(2) On any existing state aid roads within the city, the new lot or property line adjacent thereto shall be the such established right-of-way line, except that in no case shall the lot or property line adjacent thereto, be nearer than 40 feet from the center of the such road.
(3) Wherever new streets or roads are created or dedicated within the proposed subdivision, and which are not of the type specified in (1) or (2) above, they shall preferably be located and laid out on or along established section, quarter-section or eighth-section lines, and such streets or roads shall have a minimum right-of-way width of 60 feet, except that in unusual cases where short streets or courts are necessary and where there is no reasonable assurance that at some future time such streets will be carried through to form a suitable connection with other streets, then such streets may be laid out having a minimum right-of-way width of 50 feet. Where such streets terminate at a dead end, a turn-around of not less than 120 feet in diameter right-of-way, and not less than 88 feet in diameter back-to-back curb width shall be provided, and dead end streets shall not be more than 500 feet in length from centerline of intersecting street to centerline of cul-de-sac.
(F) Where alleys are provided, they shall be not less than 20 feet in width.
(G) Where alleys are not provided, easements of not less than five feet in width shall be provided on each side of all rear lot lines for poles, wires, conduits, storm and sanitary sewers, gas, water and heat mains, but which shall not be used for that purpose until authorized by and under stipulated regulations of proper authorities having jurisdiction.
(H) Blocks shall not be of greater length than 400 feet.
(I) Whenever possible, the side lines of lots shall be perpendicular to the street line which forms the front of such lots.
(J) Permanent monuments at all block corners, points of tangency of curved lines and where street lines intersect the exterior lines of the subdivision, shall be of iron pins 3/4 inch in diameter and 48 inches in length.
(K) All lot corners shall be marked by 5/8 inch diameter iron pins 36 inches in length.
(L) The minimum frontage of lots shall be 50 feet and the total area of lots shall not be less than 7,500 square feet.
(M) Building set-back lines shall be established 20 feet from the front lot lines.
(N) The subdivider shall grade, drain and surface the roadways of all streets shown on his or her plat so as to provide reasonable access for vehicular traffic to each lot of his or her subdivision. The roadways shall be graded to cross over all drainage ditches (with proper means provided for continued use of such existing drainage) and the center portion of such roadways shall be surfaced with at least ten inches of packed gravel or crushed stone. A final surfacing material of Bituminous Surface Treatment, Class A-3, shall be installed. Storm sewers, where needed, shall be constructed. If such subdivision faces on any existing street or if any of its streets connect with such existing streets, the subdivider shall build all culverts or other drainage structures required along such existing streets on account of such subdivision and the streets thereof. All such improvements shall be constructed entirely at the expense of the subdivider according to the specifications or approval of the City Council and the Superintendent of Streets, Alleys, and Sidewalks, and in conformity with grade lines established by necessary surveys made at the expense of the subdivider and approved by the Superintendent of Streets, Alleys and Sidewalks and the Committee on Streets, Alleys and Sidewalks. This minimum thickness for base course to be supplemented with sub-base courses where necessary to compensate for poor sub-grade soil conditions. The minimum radii of curbs at street intersections shall be 15 feet and eight feet minimum for alleys.
(O) The driving width of streets shall be as follows:
Proposed Situation | Less Than 1,000 Veh/Day | 1,000 to 5,000 Veh/Day
|
No Parking | 24' face - face | 26' face - face |
1 Side Parking | 27' face - face | 30' face - face |
2 Side Parking | 34' face - face | 36' face - face |
(P) The subdivider shall provide sanitary sewer mains, services and appurtenances to serve each lot in the subdivision, including connections to existing sanitary sewers. Sewer mains shall be of adequate size to serve the area being subdivided as well as any tributary area which may reasonably be expected to require sewer service in the future, but in no case shall the inside diameter of the sewer main be less than eight inches. Sewer services shall be of not less than six-inch inside diameter and shall be installed to points not less than 22½ feet on each side of the center line of the street. Manholes shall be provided at all junctions, changes in direction of flow, change in grade or size of pipe and at not more than 400 foot intervals of straight runs. Materials and methods of construction shall comply with the standard specifications on file in the office of the City Clerk and the applicable ordinances of the city as now or hereafter in effect. The subdivider shall obtain any permits required by law and shall submit the same, together with plans for work and obtain approval thereof by the Council before starting such work.
(Q) The subdivider shall provide water mains, services and appurtenances to serve each lot in the subdivision, including the connection to the existing water distribution system and including fire hydrants and cut-off valves between such fire hydrants and water mains to which they are connected in accordance with specifications or approval of the Superintendent of Water of the city. Water mains and appurtenances shall be in accordance with standard specifications on file in the office of the City Clerk. Services shall be not less than 3/4-inch copper pipe and equipped with suitable cut-offs or stops. The size of the water main shall be approved by the city, but in no event shall it be less than four inches in diameter. Construction shall be in accordance with standard specifications aforementioned. The subdivider shall prepare plans for the layout and shall obtain all necessary permits and approval of such plans and permits by the city before commencement of any work under this division.
(R) The subdivider shall do any grading, draining, surfacing and other construction work in a manner as permanent as the material used will allow and to the approval of the city. The subdivider shall do such work at his or her own expense and shall either complete such work satisfactorily to the city prior to the final approval of his or her subdivision plat by the city, or deliver to the city a duplicate signed contract covering all of such work in compliance with these regulations and a surety bond acceptable to the city guaranteeing the completion of such work so contracted for within one year from the date of such contract.
(S) The subdivider shall provide and install 24" combination concrete curb and gutters for all streets in the subdivision.
('72 Code, § 153.003)