16.20.050 Street improvements.
At least ten days prior to the commencement of construction, the subdivider shall furnish to the City Engineer a complete set of construction plans and profiles of all streets, existing and proposed, within the subdivision. The City Engineer shall, within a reasonable time not to exceed thirty days from the receipt of the plans, notify the subdivider of approval or disapproval, and in case of disapproval of the reasons therefor. Such plans and profiles shall include:
A. The designation of limits of work to be done;
B. The location of the benchmark and its true elevation according to city datum, all profiles to be referred to that datum;
C. Profiles which indicate the finished and existing grades for each side of the street. Separate profiles, clearly designated, shall be made for each side of the street;
D. Construction plans which include the details of curb and gutter and street cross-sections, location and elevation of manholes, catchbasins and storm sewers, elevations and location of fire hydrants and any other detail necessary to simplify construction;
E. Complete data for field layout and office checking;
F. On curb returns, at least two additional control points for elevation besides those at points of curvature. Control points shall be staked in the field to insure drainage at intersections;
G. The street address of the project;
H. Grades of streets shall be as follows:
1. Arterial street: minimum grade 0.5%, maximum grade 5.0%,
2. Collector street: minimum grade 0.5%, maximum grade 7.0%,
3. Minor street: minimum grade 0.5%, maximum grade 12.0%;
I. All streets within the City shall be improved with pavements bounded by integral concrete curbs and gutters to an overall width in accordance with the standards, rules and regulations adopted by the City Council;
J. Pavements shall be constructed in accordance with the requirements of the standards, rules and regulations adopted by the City Council;
K. All curbs and gutters on all streets shall be concrete of the standard high-back-type unit, not less than two feet, six inches in overall width, and not less than seven inches thick where the curb abuts the street pavement;
L. Stormwater inlets and catchbasins shall be provided within the roadway improvements at points specified by the City Engineer;
M. All curb corners shall have a radius of not less than twenty-four feet and at intersections involving collector or major streets of not less than twenty-five feet. However, if in the opinion of the City Engineer, a smaller radius would suffice, he may grant an exception therefrom;
N. The arrangement of streets in new subdivisions shall make provision for the continuation of the existing streets in adjoining areas and shall provide access to unsubdivided adjoining areas insofar as such continuation or access shall be deemed necessary by the Planning Commission. New streets must connect with existing public streets;
O. Minor streets shall approach the arterial or collector streets at an angle of not less than eighty degrees;
P. Fire hydrants shall be installed in all subdivisions in accordance with the regulations of the fire department;
Q. Street lights shall be installed in all subdivisions in the number and location specified by the City. Installation shall be in accordance with the regulations of the power company;
R. Open ditches or canals shall not be allowed within or adjoining a subdivision except along rear or side lot lines. The subdivider shall work with the irrigation, drainage or ditch companies as to:
1. Methods of covering, realigning or eliminating ditches or canals within or adjoining the subdivision,
2. The size of pipe and culverts required,
3. The responsibility for the periodic inspection, cleaning and maintenance of such ditches, pipes and culverts. In cases where canals or ditches cross public roads or proposed public roads, specifications and grades for pipe or culvert must be approved by the City Engineer;
S. The subdivider shall install a six-foot, nonclimbable chain-link fence, or its equivalent along all open ditches, canals or waterways, nonaccess streets, open reservoirs or bodies of water, and other such features of potentially hazardous nature, on crossing or contiguous to the property being subdivided, except on those features which the Planning Commission shall determine would not be a hazard to life, or where the conforming structure would not create a hazard to the safety of the public;
T. The subdivider shall install curbs, gutter, and sidewalks on existing and proposed streets in all subdivisions, including on the rear of such lots as back on arterial streets when the Planning Commission determines that pedestrian access along said arterial street is necessary;
U. Street name signs, conforming to the design and specifications and in the number provided by the standards, rules and regulations of the City, shall be provided by the developer at all street intersections. Installation shall be made by the developer and inspected by the City. (Ord. 13-81 (part), 1981: prior code § 22-5-1(4))