Section 12A-67 Site grading and drainage plan.
Prior to the adoption of Ord. 20802 on 12/06/2010, Section 12A-67 read as follows.
(a) The site grading and drainage plan shall include the following:
(1) Existing features.
a. A drainage area map showing
topography of the entire drainage basin(s) contributing to
the site. The scale of the map shall be no smaller than 1 inch = 200 feet for drainage areas up to
five hundred (500) acres. A topographic map of appropriate scale shall be provided for larger
areas upstream from the design area. The drainage map is to show total acreage of the site and
the acreage of all drainage areas contributing to the site.
b. A site plan having a scale
no smaller than 1 inch = 100 feet and existing contour
intervals of not more than five (5) feet. The plan shall show topographic features such as
highways, utilities, natural watercourses, existing drainage facilities and structures, adjacent
property lines, north arrow, scale, and vicinity map. The site plan is to also show the limits of the
adopted 100 year flood plain on the site and any critical environmental areas such as streams,
lakes, ponds and wetlands. Area and geological types of predominant soils as well as the nature
and extent of existing vegetation shall also be shown on the plan.
(2) Proposed alterations of the site.
a. A plan drawing that shows
the limits of clearing and grading, cuts and fills, and final
contours at not more than two (2) feet intervals. The plan shall identify the phasing of the
grading, showing the area(s) to be denuded and the maximum time those areas will remain
disturbed (not to exceed the lessor of thirty (30) working days or one hundred twenty (120)
calendar days after completion of the work). The plan shall show areas to be used for storage of
topsoil and excavated subsoil and plans for access to the site during wet weather.
requirements of section 12A-71 shall apply to stored stockpiles of soil.
b. A final site plan showing
the location or relocation of all utilities, planned streets,
roads, buildings, parking lots, and structures, and all permanent storm water management
(3) Temporary erosion and sediment control measures during
a.Drawings shall be provided showing types of measures and facilities needed and the location of
those measures and facilities with dimensional details. All permanent deviations in overland flow
drainage patterns and the location of ingress and egress points with the planned protection
provisions are to be indicated. § 12A-69
(4) Permanent erosion and sediment control measures
for long term protection.
a. Drawings shall be provided
showing types of measures and facilities needed and the
location of those measures and facilities with dimensional details. All permanent deviations in
overland flow drainage patterns are to be indicated.
(Ord. No. 13019, § 1, 7-1-91)