4
Major Preliminary Plat
Please add the following notes as applicable:
• Mailboxes within the road right-of-way shall be of a breakaway design.
• The existing buildings noted to be removed shall be done so prior to final plat approval.
• Access to [insert state highway name here] must be approved by the Iowa Department of Transportation.
• Future development of the property is subject to Article 7, Section 4, "Natural Resource Protection,
Woodlands" of the Polk County Zoning Code, which preserves wooded areas of the property.
• Any subsurface drainage facilities that are disturbed must be restored or rerouted by the property owner.
• Services to all utilities located on the opposite side of the roadway must be bored under the roadway at the
lot owner's expense.
• Maintenance of all drainage easements to be the responsibility of the property owner.
• Culverts to be used for crossing drainage easements must be designed by a licensed professional
engineer.
• [Insert County road Street Lot Letter Here] shall be dedicated to Polk County for roadway purposes. [Insert
County road Street Lot Letter Here] shall be dedicated to Polk County for roadway purposes at such time
the roadway has been improved and accepted into the Polk County Secondary Road System by the Polk
County Board of Supervisors.
• Post development runoff will not adversely affect downstream drainage facilities or property owners.
• It shall be the Developer's responsibility to apply for and obtain any storm water discharge permits from the
Iowa Department of Natural Resources.
• The Developer shall be responsible for the maintenance of the pavement on the temporary turnaround until
the next phase of the development.
• Polk County does not require or issue permits for sidewalks and does not accept the liability and/or
responsibility for construction placement, repair, or maintenance thereof of any street sidewalk installed in
the plat by any home owner.
• Due to soil types, limitations, and disturbance, alternative septic systems may be required. Individual
wastewater treatment systems shall be designed by an Engineer.
• Grading contractor will be required to provide a 4-year maintenance bond for erosion control. The IDNR
Storm Water Discharge Permit will be required prior to grading operations.
• The Homeowner's Association will be responsible for the maintenance and repair of the detention basins
and detention outlet facilities.
• Note utility service providers.
• Access to each lot is restricted to the subdivision road. [Plats with proposed internal streets]
Polk County Public Works, Planning & Development Division
5885 NE 14
th
Street, Des Moines, IA 50313
▪Phone (515) 286-3705 ▪
email: PublicWorks@polkcountyiowa.gov
Forms available online http://www.polkcountyiowa.gov/PublicWorks/