徒步(Picnic) – Woronora Dam (20/Dec Sun)

Just_Walk

Picnic, Walking & Family Gathering, altogether at WORONARA  DAM, 20 December, Sunday

Meeting Point:        The Point A, Woronora Dam Picnic Area (11km from Waterfall Railway Station)
                                 
Meeting Time:                          11:30 am
Picnic Time:                             11:30am – 1:30 Pm

Walking Starting Time:                 1:30pm            

Walking Track One (2-3km):  walking on top of the Woronora Dam and the nearby area.

Walking Track Two (10km):  after finished the walk on Track One,  further walk from Point A to Point B (Heathcote National Park), then return to Point A.

Woronora Dam area is also good to riding bicycle.

If you would like to join this walk on Sunday, please contact Yellow on 0414 367 268 or Wendy 0430 227 719.

What do you need to bring?  Your favourite drink and food (home made preferred) for share.  

Woronora Dam is the only one of Sydney's major water supply storage dams which is not a component of the main Upper Nepean / Warragamba Shoalhaven Scheme. Originally built to provide water for the Sutherland - Cronulla area and the northern side of George's River, it now serves the Sutherland - Cronulla -Heathcote areas.

Disclaimer
WARNING: There are risks of injury or death on outdoor walking/climbing activities.
The walking-tracks are selected without taking the participants’ individual healthy conditions into account. Therefore, the participants should make sure that they are medically and physically fit for such activities.
Either www.oursteps.com.au, other fellow participants or the coordinators will not accept any responsibility and/or liability for any loss and/or damage suffered by the participants.

[ 本帖最后由 Just_Walk 于 2009-12-14 20:46 编辑 ]

Just_Walk

Sunday Weather Forecast:    Mostly Sunny, Cool;  Temperature:  15 - 22 degree.

Woronora Dam is the only one of Sydney's major water supply storage dams which is not a component of the main Upper Nepean / Warragamba Shoalhaven Scheme. Originally built to provide water for the Sutherland - Cronulla area and the northern side of George's River, it now serves the Sutherland - Cronulla -Heathcote areas. The population in this area has in recent years expanded to such an extent that Warragamba Dam also now feeds into this water supply system. The Dam is located on the Woronora River about six kilometres north-west of the township of Waterfall, and has a catchment area of 85 sq kilometres, compared with the Warragamba catchment area of 9050 sq kilometres. It impounds a total of 71790 meglitres. , The dam is a curved gravity dam constructed with cyclopean masonry and mass concrete. It has a zig-zag spillway 152.5 metres wide (to give greater discharge rate), located at a short distance away from the wall. This empties into the riverbed well below the dam wall itself. Water is discharged from the lake by two pipes (0.9m diameter) built into the base of the dam which lead to a valve house at the bottom of the downstream face of the wall. From this point it flows along a 27 km pipeline, which crosses the Georges River via a railway Bridge and discharges into the two elevated Penshurst Reservoirs. The Woronora Dam shares technological similarities with the Nepean Dam, both constructed using a mass concrete gravity technique. They are 60 and 80 metres high respectively. This technique was commonly used in dam construction prior to the Second World War, however after this, concrete gravity technology was superceded by the complex engineering principles used in the Warragamba Dam scheme between 1947 and 1960.

[ 本帖最后由 Just_Walk 于 2009-12-14 20:44 编辑 ]

Just_Walk

:)

vandia

这个坛子人气差点， 过来捧捧场

wTam

我也好久没有来这边了，明天见。。。

Just_Walk

Picnic

[ 本帖最后由 Just_Walk 于 2009-12-20 19:05 编辑 ]

Just_Walk

Walking & Views

[ 本帖最后由 Just_Walk 于 2009-12-20 21:56 编辑 ]

wTam

今天天气很好，不热，没什么太阳。我们23人走了3小时，大部队走了14公里，小分队也走了12公里。谢谢两位司机的来回接送。。。   



[ 本帖最后由 wTam 于 2009-12-20 20:46 编辑 ]