(a) The plans, specifications, timing schedule and cost estimate accompanying the application shall, to the extent required by the City Engineer, taking into account the magnitude and extent of the proposed activity, be submitted to and approved by the City Engineer prior to the commencement of any activity regulated by this chapter and shall include the following data:
(1) A vicinity map drawn to a scale of not less than 2,000 feet to one inch showing the relationship of the site to its general surroundings;
(2) A plan of the site drawn to a scale of not less than 100 feet to one inch showing:
A. The boundary lines of the site on which the work is to be performed, including the approximate acreage of the site;
B. Existing topography on the site and on land adjacent to the site within 100 feet of the site boundary lines, including the location of any buildings, structures, utilities, sewers, water and storm drains, wooded areas and other significant natural features.
The topographic map shall show one-foot contour intervals where the natural slope does not exceed five percent; two-foot contour intervals where the natural slope is between five and ten percent; and five-foot contour intervals where the natural slope is in excess of ten percent. Such topography shall be delineated for the land area within and adjacent to the plat for a minimum distance of 100 feet. All elevation shall be based on U.S.G.S. datum plane.
C. Proposed improvements on the site, including present development and future utilization, if known;
D. All drainage provisions, erosion and sediment control measures, vegetative practices or other protective devices to be constructed in connection with or as part of the proposed work;
E. Provisions for erosion control during construction (temporary) and during the life of the facility (permanent). Such provisions shall include a timing schedule and sequence of operations indicating the anticipated starting and completion dates of the particular development sequence. Included also shall be the estimated time of exposure of each area prior to the completion of effective erosion and sediment control measures.
F. A complete and adequate grading plan for borrow pits, quarries and material processing facilities where applicable;
G. A general description and location of the predominant soil types on the site;
H. The name and address of the owner, developer and petitioner; and
I. The title, scale, north arrow, date and name of the individual or organization preparing the plans;
(3) Detailed plans of all drainage provisions, retaining walls, cribbing, vegetative practices, erosion and sediment control measures, location of approved fences around sediment basins, steep slopes or ponding areas, and other protective devices to be constructed in connection with or as a part of the proposed work, together with a map showing the drainage area of land tributary to the site and the estimated cubic foot per second runoff of the area served by any watercourse, computed in accordance with current City storm drainage criteria; and
(4) The estimated quantity and cost, including material and installation costs, of the required erosion controls.
(b) The plans and specifications shall be supported by such supplemental reports, data and additional information as the City Engineer may reasonably require, including, but not limited to, any of the following:
(1) Finished contours at the same interval as required or used for existing topography, proposed building and pavement grades and the elevations, dimensions, locations, extent and slope of all proposed grading;
(2) Storm drainage computations and studies, including the estimated run-off from the area served by any drains, ditch and pipe computations and a map showing the drainage area of land tributary to the site;
(3) Field investigation reports indicating the nature, condition and characteristics of existing drainage and flooding conditions; and
(4) Results from actual soil investigations, reports or test borings, if
applicable.
(c) The City Engineer may waive the requirements for plans, specifications, timing schedules or cost estimates if he or she finds that the information on the application is sufficient to show that the work will conform to the requirements of this chapter.
(d) The plans and specifications accompanying the application shall be prepared and certified by a professional engineer or other person qualified and approved by the City Engineer.
(Ord. 72-41. Passed 12-12-72. )