Correction, MG 5-21-14.

1.  Drainage Report:  If applicable complete the Drainage Certification found in the Drainage Design Guidelines Appendix C-3, along with backup calculations (areas and weighted coefficients) stamped by a civil Engineer (http://www.muni.org/Departments/works/project_management/Pages/Publications.aspx). Otherwise, Provide a drainage report prepared, signed and stamped by a civil engineer licensed in the State of Alaska per the 2007 DCM Ch:2.  Reference the 2007 Drainage Design Guidelines, Appendix A for preparation of a Drainage Report (follow the outline beginning on page A-3 and include relevant forms) to be submitted with the drainage and grading plan.  Please provide drainage calculation inputs and results from modeling on a CD upon request (EPA SWMM digital format or equivalent as applicable).

2.  Provide roof drain leader locations on the civil plans and/or tie-in to the storm drain facility (DCM 2.2.D.6).  Roof drainage concentrated by downspouts or similar devices shall not be directed across sidewalks, driveways, or parking areas (DCM 2.2.D.16).  Include inverts, minimum bury depth, type of pipe, diameter of pipe, type of connections and freeze protection (DCM Section 2.7).

3.  The ground immediately adjacent to the foundation shall be sloped away from the building at a slope of not less than 5 percent for a minimum distance of 10 feet.  Impervious surfaces within 10 feet of the building foundation shall be sloped a minimum of 2 percent away from the building. IBC 1804.3.

4.  PD comments may be incomplete pending further submittals.