(A) Generally.
(1) The developer shall have prepared a complete set of engineering plans showing details of all streets, alleys, drainage structures, water utility, sanitary sewer utility and electrical distribution system, combined with construction standards, specifications and related details, which are to be included for development. All cost related to the preparation of these plans shall be paid for by the developer. The engineering plans shall be prepared by a registered professional engineer, duly authorized to perform the specific type of design required for this task.
(2) The engineer shall design and prepare engineering plans to utilize the construction standards of the city. When no specific policy, standard or ordinance exists, then he or she shall use the standard of the practices for similar conditions. The plans shall be signed and sealed by the professional engineer responsible for the design.
(3) All engineering plans shall be submitted on sheets 24 inches by 36 inches, including a minimum one-half-inch margin, except on the left border, where a minimum two-inch binding margin will be provided, and when appropriate, will show an overlay of the subdivision lints. When appropriate, standard printed plan-profile sheets may be used.
(B) Engineering plans; minimum. The engineering plans will contain, as a minimum:
(1) Title, index and certification page, as applicable;
(2) Existing detail:
(a) The exact location, dimensions, description and flow lines of existing watercourses and drainage structures within the subdivision and contiguous thereto;
(b) All existing improvements within the subdivision, except structures to be removed and interior fences;
(c) All utility lines and roads, including type and size, of all public utilities and roads within the subdivision and contiguous thereto; and
(d) Soil information which shall show characteristics for soil bearing, shrink/swell, permeability and percolation.
(3) Each subdivision application shall include a topographic base map, showing contours at intervals not greater than two feet. All topographic maps shall be based on the National Geodetic Vertical Datum, and a benchmark shall be shown giving its location and elevation. This sheet may be combined with the existing detail sheet;
(4) Drainage area map and calculations in accordance with the drainage ordinance;
(5) Street plan and profiles:
(a) To be at a scale of one inch equals 50 feet horizontal, with an appropriate vertical scale. All horizontal and vertical curve data shall be shown;
(b) When the street right-of-way property lines are not curved chordally with the street, but the constructed street will have curves, the PC and PT stationing, radius and length of each street curve, as a minimum, will be given; and
(c) Street centerline stationing shall reference the subdivision boundary, as appropriate.
(6) Sanitary sewer utility lines shall be shown on a standard plan-profile sheet with a scale of one inch equals 50 feet horizontal and an appropriate vertical scale. Stationing shall reference the subdivision boundary, as appropriate;
(7) The water utilities system will generally be at a horizontal scale of one inch equals 100 feet in the form of a general plan with appropriate scale plan-profile sheets and details;
(8) Drainage channels, lines and structure shall be shown at a horizontal scale of one inch equals 100 feet in the form of a general plan with appropriate scale plan-profile sheets and details;
(9) Electrical distribution system plans shall be at a scale of one inch equals 100 feet and all appurtenances shall be shown. Particular care shall be taken to ensure that guy line easements and streetlight easements shown on the plat correspond with the system;
(10) Utility system improvements and streets required, which are not immediately adjacent to the subdivision, shall be shown as "off-site" plan and profiles, as appropriate; and
(11) When improvement details shown in the construction standards of the city are sufficient to provide for proper construction, no additional details need to be shown on the plans.
(Ord. 08-358, passed 11-18-2008)