Ral 17 0511 Rfi

            c. The extent of frontage works proposed is as follows;

                        Stage 1: Lot 1 including frontage works to end of lot 2/3
                         boundary (refer to 1707-1E).
                        Stage 2: Lot 2/3 (refer to 1707-1E).
                        Stage 3: Lot 4 frontage.

                The proposed 5.5m road width between lot 2/3 entry and just north of
                existing twin 1200mm diameter culverts in Church Street is considered
                adequate because;

                        It will save existing trees and gully at crossing. Widening culverts
                         and road at this point would require extensive clearing and
                         reduce amenity/appearance of existing area.
                        Limiting parking at this location is preferred as Church street
                         flooding occurs often according to BSM (overtopped ARI 10
                         existing/developed normal rainfall, overtopped ARI 5
                         existing/developed climate change rainfall) and Q100 depth is
                         approximately 0.28m to 0.33m (climate change). Also due to
                         flooding there will not be dwellings in that location and won’t
                         need parking.
                        Existing water main passes close to culverts at present and
                         widening may require expensive alterations.
                        Existing road width is same as proposed, and with trees this
                         creates a low speed environment which is desirable to maintain
                         for safety.



We hope that this information will allow for approval in the near future, please call with any
queries.




Yours faithfully,




A Haynes BE Civil (Hons) MIE Aust RPEQ CPEng
CC Mark Jones




J:\HCE files 19-12-17\APROJECTS\1707 MJ 4 lots Pomona\CORROUT\RAL 17 0511.docx