Green Point Creek, Pearl Beach Floodplain Management Study

The Green Point Creek system has been divided into component areas for application of a floodplain\r\nmanagement plan. The component areas, illustrated on Figure 13, cover:\r\n\r\n* Tourmaline Avenue Floodway Area;\r\n* Tourmaline Avenue - Flood-Liable Developed Area;\r\n* Crystal Avenue Floodway;\r\n* Tourmaline Avenue Culvert Area - currently flood-liable; and\r\n* Diamond - Tourmaline Avenue - Flood-Liable Developed Area.\r\n\r\nThe specific points applied in each of the above areas involve:\r\n\r\n* land use controls;\r\n* building development controls;\r\n* limited channel erosion protection under government funding;\r\n* the bulk of channel erosion protection by land owner finance; and\r\n* structural works, as outlined above with Tourmaline Avenue culvert replacement,\r\nfloodplain restoration and acquisition of one house.

绿点溪（Green Point Creek）水系已被划分为若干子片区，用于推进漫滩管理计划的实施。图13所示的子片区涵盖以下类别：
* 托马林大道（Tourmaline Avenue）泄洪通道区；
* 托马林大道——易受洪水侵袭建成区；
* 水晶大道（Crystal Avenue）泄洪通道；
* 托马林大道涵洞片区——当前易受洪水影响；
* 钻石（Diamond）——托马林大道——易受洪水侵袭建成区。

上述各片区所采用的具体管控举措包括：
* 土地使用管控；
* 建筑开发管控；
* 由政府资助的有限河道侵蚀防护工程；
* 由土地所有者出资承担的绝大部分河道侵蚀防护工作；
* 结构类工程，包括托马林大道涵洞更换、漫滩修复以及一处住宅征收工作，如前文所述。