Greystanes Creek and Pendle Hill Creek Flood Mitigation Study

Flood mitigation measures were investigated for eliminating flood\r\nproblems for the 1% annual exceedance probability flood for:\r\nGreystanes Creek from Fox Hills Golf Course to Fitzwilliam Road,\r\nToongabbi e,\r\nPendle Hill Creek from the Great Western Highway to Fitzwilliam\r\nRoad, Toongabbie, and\r\nThe Confluence Area extending from Fitzwilliam Road, on both creeks,\r\nto Toongabbie Creek, including the confluence of Greystanes Creek\r\nwith Pendle Hill Creek.\r\nThe capacities of all channels, bridges and culverts in the Study Area\r\nwere assessed and compared with the 1% flood estimate for existing\r\nconditions and for conditions with the upstream retarding basins\r\ncompleted. On the basis of the comparison those structures which were\r\ninadequate.