Att 1 - RFI Amended SWMP

                                                                                                   23098 - SBSMP/3
                                                                                                            Page 6




4 EXISTING DRAINAGE PATTERNS

4.1 Existing Infrastructure
Data obtained from the NSC Interactive Mapping plans and detailed site survey indicate the
following existing drainage infrastructure:
    1. Swale drain traversing the northern verge of Pearl Street, south of the site;
    2. Swale drain traversing the eastern verge of Elm Street, west of the site;
    3. A 300mm dia. to 600mm dia. stormwater line traversing the southern verge of Pearl Street,
       south of the site; and
    4. A 1350mm dia. to 1800mm dia. stormwater line traversing the eastern boundary of 11 Pearl
       Street, east of the site.

Refer to Figure 4.1 for the existing stormwater infrastructure and drainage patterns and Appendix
C for the Noosa Council Interactive Mapping Plans.




   N




                                                                 Subject Site

                                                                                         Ø 1350
                    Elm Street




                                                                                                    Ø 375
                                                                                         Ø 1800




 Legend
                                          Pearl Street
 Sheet Flow Path
 Stormwater Line                                         Ø 300

 Stormwater Pit                                                                 Ø 600             Ø 750

 Swale Drain
 Headwall


                                 Figure 4.1 – Existing Drainage Paths & Infrastructure




Site Based Stormwater Management Plan
Proposed Townhouse Development at 5 Pearl Street, Cooroy