The arrangement, character, extent, width, grade, and location of all streets shall conform to all of the elements of the general plan and shall be designed in accordance with the following provisions:
(A) All such streets shall be related to existing and proposed streets in the area, topographical conditions, public convenience and safety, and existing and proposed land uses along such streets;
(B) All streets shall be platted in such a manner that all resulting lots shall conform to the applicable zoning regulations;
(C) Where such streets are not shown in the official city plan, the arrangements of these streets in the subdivision shall either:
(1) Provide for the continuation or appropriate projection of existing streets in the surrounding areas; or
(2) Conform to a neighborhood plan approved or adopted by the Planning Commission.
(D) Minor streets shall be laid out so as to discourage through traffic;
(E) Where a residential subdivision abuts or contains an existing or proposed major thoroughfare, the Planning Commission shall require:
(1) Marginal access streets;
(2) Reverse frontage with screen planting contained in a nonaccess reservation along the rear property line;
(3) Deep lots with rear service streets; or
(4) Such other treatment as may be necessary for the adequate protection and stabilization of residential properties and to afford separation of through and local traffic.
(F) Where a subdivision borders on or contains a railroad right-of-way or limited access highway, the Planning Commission may require a street approximately parallel to and on each side of such right-of-way;
(G) Reserve strips designed and used for the primary purpose of controlling access to minor streets by parties or persons other than a public agency shall be prohibited;
(H) Street alignment requirements are as follows:
(1) Street jogs with center line offsets of less than 125 feet shall be avoided;
(2) A tangent of not less than 100 feet in length shall be introduced between reverse curves on arterial and collector streets;
(3) Sight distance: Minimum clear sight distance, measured along the chord of the center line, shall be provided on all streets as follows:
(a) Arterial streets: 400 feet;
(b) Collector streets: 350 feet; or
(c) Minor streets: 250 feet.
(I) Street rights-of-way and roadway widths are as follows:
(1) Street rights-of-way and roadway width shall conform to the official city plan;
(2) All streets shall be paved according to the established standards adopted by the City Council; or
(3) The following minimum standards shall apply:
Street Type | Width | Roadway |
Convenience collector | 70 | 44 |
Industrial collector | 70 | 44 |
Local street | 50 | 30 |
Primary arterial | 120 | 44 |
Residential collector | 60 | 32 |
Secondary arterial | 100 | 44 |
(4) Half streets are prohibited, except where essential to the reasonable development of the subdivision in conformity with the other requirements of these regulations;
(5) In no event shall lots facing a one-half minor residential street be permitted; or
(6) Wherever an existing half street is adjacent to a tract to be subdivided, the other half of the street is platted within such tract.
(J) Arterial street frontage access control requirements are as follows:
(1) No access on an arterial street shall occur within minimum intervals of 600 feet, measured from the nearest intersecting rights-of-way lines (except as modified by division (J)(2) below. The distance may be extended or increased if traffic conditions as determined by the Planning Commission warrant such extension;
(2) In commercial and industrial subdivisions, specifically designated “one-way turn only” access may be provided in the direction of the adjacent traffic lane at a minimum distance of 300 feet between major street intersections or a minimum of 300 feet between each access point;
(3) Commercial or industrial subdivisions should have access to an arterial or commercial street, and may have access to a collector street, if traffic conditions as determined by the Planning Commission warrant such extension, but shall not have access to a residential street;
(4) To assure traffic safety, appropriate nonaccess provisions shall be designated and dimensioned along all abutting streets in commercial and industrial subdivisions, and along major streets in residential subdivisions. A description of such nonaccess provisions shall appear upon the plat;
(5) Access to property occurring within the minimum distance prescribed for major street access, 600 feet, shall only be by the closest service or frontage road entrance onto the major street; or
(6) Individual driveways will be so located on each lot to avoid direct vehicular access to or from any expressway, thoroughfare, or arterial street. Driveways should be located to enable direct access primarily to or from a minor street or, if necessary, to the collector streets which serve as feeders to or distributors from the major streets.
(K) No street name shall be used which will duplicate or be confused with the names of existing streets. Street names shall be referred to the post office for recommendation and subject to the approval of the Planning Commission and the City Council;
(L) Street grade requirements are as follows:
(1) The minimum grade of all streets shall be 0.4%;
(2) Except where unusual topographic conditions justify an exception, the maximum grade of all streets shall not be greater than the following:
Street Type | Grade |
Arterial | 3% |
Collector | 5% |
Service streets | 7% |
(M) Street intersection requirements are as follows:
(1) Streets are laid out to intersect at right angles and may be curved, if necessary, in order to make this possible. In no event shall a street intersect any other street at any angle of less than 75 degrees;
(2) Street corners on local residential streets shall have a minimum radius of 20 feet at curbline or its equivalent;
(3) Street corners on commercial and industrial streets shall have a minimum radius of 25 feet at the curbline or its equivalent;
(4) Street intersections involving major thoroughfares shall have a minimum street corner radius of 30 feet at the curbline or its equivalent;
(5) All street corner radii shall be shown on the preliminary and final plats; and
(6) A 25-foot area of clear vision at street intersections in subdivisions shall be provided. This area shall be kept clear of all structures and vegetation exceeding a height of three feet above the established city street elevation.
(N) Cul-de-sac and dead-end street requirements are as follows:
(1) The maximum length of a cul-de-sac shall be 500 feet except where topography would render impracticable the standard distance as set forth in § 154.023 of these regulations;
(2) Each cul-de-sac shall be provided with a turnaround having a minimum right-of-way radius of 50 feet;
(3) The road surface within the cul-de-sac right-of-way shall have a minimum width of 30 feet;
(4) In the case of temporarily dead-ended streets which are stub streets designed to provide further connection with adjoining unsubdivided areas, the Planning Commission may require:
(a) Temporary easement for a turnaround having a radius of 50 feet; or
(b) An appropriate area for a backaround.
(5) In all instances, proper provisions shall be made for adequate storm drainage so that storm water does not collect at the ends of these streets.
(Prior Code, § 12-410) Penalty, see § 154.999