1. Drainage Report: If applicable complete the Drainage Certification found in the Drainage Design Guidelines Appendix C-3 (Please do not confuse size ofproject with size of lot) , 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. Ref. C3.0, Proposed connection to 60” pipe; A manhole shall be installed at major junctions places where there are changes in vertical or horizontal alignment, and at locations where there are changes in pipe size or shape. 2007 DCM 2.7.D.1.
3. Ref. C3.0, Proposed connection to 60” pipe; Two 12” dia. pipe inverts are shown and only one 60” pipe invert. This appears to be an error.
4. Indicate the installation of storm drain pipe locator tape three feet below finish grade or two feet deep in the street structural section. MASS Section 20.13 Article 13.3.E, page 39 R2.
