Main pool
Normal pool level
Storm water storage volume
Maximum water level
Native wetland plantsRiser prevents overflowing embankment
Compacted earth embankment
Forebay
Embankment with wetland plants and spillway to main pool
Inlet
Riprap inlet protection
Riprap outlet protectionReverse-sloped orfice to slowly release storm water
Anti-seep collarsConcrete anti-flotation anchor
River
Outlet
Weiti JunctionIntegrating Storm water managementwith public space
Public green space
Boardwalk/Wetland
Riverside
Urban Zone
Helena Downey Studio 6225 - Project 31315637
A
Section AAA
Cordyline australis (cabbage tree)Eleocharis acuta (sharp spike sedge)
Baumea articulata (jointed twig rush)
Apodasmia similis (oioi)
Carex geminata (purei)Carex lessoniana (rautahi)Coprosma tenuicaulis (swamp coprosma)
Phormium tenax (flax)Sophora chathamica (kowhai)Ulmus procera lutescens (golden elm)
Avicennia marina (mangrove)
Detention pond/wetland system
A boardwalk provides clearly defined public access and allows good viewpoints for observing wildlife in the adjacent storm water wetlands and ponds
Quercus robur (english oak)
Green spaceHigh density
Medium densityWeiti River
Red oak boardwalk
Constraints Opportunities
Br o
wn
f ie
l d z
on
e
Using Weiti River to influence connection between zones. A perfect opportunity for integration
Poplus nigra (poplar)
