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Section 1207.07 Stormwater Management/Drainage/Erosion Control
- Purposes
The purposes of this section are to protect existing properties by controlling the
water runoff from development areas, to protect the environmental integrity of the
existing wetlands, to preserve the water quality of Hudson’s wellhead protection
areas, to implement water quality studies for the Mudbrook/Powers Book,
Brandywine Creek, and Tinkers Creek watersheds, and to provide minimum design
standards for storm water management facilities. - Applicability
Storm water retention/detention applies to all development in the City of Hudson
except “Minor Development” as defined in Section 1203.09(d), Site Plan Review. - General Criteria
The City of Hudson Engineering Standards for Infrastructure Construction are the
accepted design and construction specifications for storm water management
facilities in the City. All provisions in the Engineering Standards shall be applicable
to all development in the City of Hudson, Ohio. - Additional Regulations
- In addition to the requirements of the Engineering Standards for
Infrastructure Construction, the following additional regulations shall be
adhered to:- Retention/Detention Basins
Developers constructing detention basins are encouraged to design
them for use as neighborhood open space and recreation components
and to consider designs based on Summit County Soil and Water
Conservation District recommendations or guidelines from the Center
for Watershed Protection. Adequate signage declaring the intended
use of the basin shall be conspicuously displayed along with
appropriate warnings about storms. All such signs shall be approved
by the City. - To the maximum extent feasible, the applicant’s storm water
management plan shall include the following non-structural control
techniques. Where the applicant proposes the use of detention/
retention facilities, he must first utilize one or more of the following
runoff reduction measures. The applicant shall provide a written
justification of the utilization of the following in calculating storage
capacities of the detention/retention facilities:- Areas undisturbed (cleared) by construction;
- Restriction of development on steep slopes;
- Maintenance of vegetation buffers;
- Minimization of impervious surfaces and use of pervious
surfaces;
- Use of terraces, contoured landscapes, tiered pond systems, runoff
spreaders, grass or rock-lined waterways; and/or - Use of infiltration trenches.
- Other techniques appropriate to the site as recommended by the City
Community Development Staff.
- Retention/Detention Basins
- Wetlands may be considered for use in reducing storm water runoff using the
following criteria:- No existing or proposed structure shall be affected due to flooding
during the post-development 25, 50, or 100-year storm. - No adverse impact will occur on existing vegetation within the
wetland. - The use of a modified level spreader as defined in the City of Hudson
Design Specifications is required at all storm water outlets to the
wetland. - The City may request further study parameters of the wetland if
additional concerns are raised. - Exception: Wetlands located in the City of Hudson’s mapped
Wellhead Protection Areas shall not be used for the purposes of
reducing storm water runoff. - The written approval of the Army Corps of Engineers and/or the Ohio
Environmental Protection Agency is required.
- No existing or proposed structure shall be affected due to flooding
- Channels, Swales, and Ditches
Channels, swales, and ditches are not permitted as part of the primary storm
water management system in any new development, except as provided
below. Due to topography or other reasons approved by the City Engineer, swales or
ditches between buildings are permitted to carry storm water to an
underground system.- Storm water from no more than one (1) acre of residential
development or a (one-half) ½ acre area in commercial,
industrial, or retail districts shall be transported on the surface
before being intercepted by an underground drainage system.
- Storm water from no more than one (1) acre of residential
- Erosion and Sediment Control
Storm Water Pollution Prevention Plans are required for the purpose of
controlling the pollution of public waters by sediment from accelerated
soil erosion and accelerated storm water runoff caused by earth disturbing
activities and land use changes connected with developing urban areas. - Plat Notes
A note shall be added to all final plats indicating that the
detention/retention facilities shall be owned and maintained by the
property owner or homeowners/condominium association as appropriate.
The note should also indicate that the City of Hudson reserves the right to
assess the responsible entity for any necessary maintenance and/or
improvements that must be performed by the City.
- In addition to the requirements of the Engineering Standards for