(A) Monuments. The subdivider shall place permanent monuments in the subdivision as provided herein. Iron monuments five-eighths inch in diameter and no less than 18 inches long shall be placed on street right-of-way lines, street intersections, block corners, and all lot corners.
(B) Curb and gutter. Curb and gutter shall be installed by the subdivider on all roadways in the plat being dedicated to public use and shall be installed within one year of City Council approval of the final plat filed by the subdivider. Curb and gutter shall be constructed of portland cement concrete.
(C) Streets.
(1) All streets, roads, and alleys shall be graded and surfaced to their full widths by the subdivider. Pavement widths shall be measured between the edges of the gutters, thereby excluding curb and gutter widths from the measurement of pavement width.
(2) Minimum pavement widths to be provided are:
Street Types | Minimum Widths |
Alleys | 20 feet |
Arterial (each lane) | 12 feet |
Collector | 44 feet |
Frontage road | 26 feet |
Local | 32 feet |
(3) All roadways to be dedicated for public use and shall be surfaced from curb to curb. Surfacing between the gutters shall, at a minimum, be either:
(a) Asphalt, four inches thick, with a six-inch aggregate base course; or
(b) Portland cement concrete (non-reinforced), seven inches thick, with a four inch gravel cushion.
(4) All surfaced roadways shall be installed within one year after curb and gutter has been installed within the subdivision.
(5) In cases where streets are anticipated to have higher than normal traffic volumes or an unusually high proportion of traffic from heavier vehicles, the Planning Commission may recommend, and the City Council may require, higher road surfacing standards for such streets.
(D) Sidewalks. Within all newly platted subdivisions, permanent portland cement concrete sidewalks along each side of every street shown on the plat, dedicated to public use, shall be a minimum of four feet in width. Sidewalks shall be four inches in thickness, with a sidewalk thickness of six inches required where sidewalks intersect driveway access to a street.
(E) Drainage and storm sewer. The subdivider shall make adequate provisions for storm drainage runoff through channels or a storm sewer system. Any such improvements shall be constructed separate from the sanitary sewer system.
(F) Water facilities. The subdivider shall install all water distribution facilities as specified by uniform building code, including fire hydrants and shut-off valves at each block.
(G) Sewerage facilities. The subdivider shall install public sewerage facilities and manholes subject to review by the Planning Commission and approved by the City Council. Sewers shall be installed to each lot, with grades and sizes. No individual disposal or treatment systems shall be permitted.
(H) Natural gas mains. The subdivider shall install natural gas mains, subject to review by the Planning Commission and approval by the City Council.
(I) Public utilities. The subdivider shall provide lot easements for public utilities wherever possible. When it is necessary to install utilities in the street, the following standards shall apply: After grading is complete and approved, and before a pavement base is laid, all in-street work (water and sewer mains, storm sewer, gas mains, and the like) and all service connections shall be completely installed and approved, so as not to require disturbing the pavement surface after paving is completed.
(J) Street signs. The subdivider shall install street signs, indicating the name and block number, at each intersection.
(K) Street lighting. The subdivider shall install street lighting in accordance with existing city standards. Any additional costs, due to lighting fixtures requested by the subdivider above and beyond city standards, shall be borne by the subdivider.
(L) Construction standards. The subdivider shall consult with the area soil conservationist in the planning and construction phase of the development to ensure compliance with SDCL § 38-8A-22.
(Ord. 529, passed 2-8-1999; Ord. 537, passed 4-12-2000) Penalty, see § 151.99