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Tarraleah No. 1 Canal Coping Works

ClientHydro Tasmania
Value$1.08M
StateTasmania
CompletedJuly 2017

Tarraleah No. 1 Canal is located in the Tarraleah Power Development and forms part of the water conveyance structures that divert water from Lake King William to the Tarraleah No. 1 Pond, for use at the Tarraleah Power Station.

The Project

Tarraleah No. 1 Canal was originally designed to convey a maximum flow of 25.5 cumecs (900 cusecs) into No. 1 Pond. However due to freeboard constraints in the canal, the design flow rate has only been achieved four times in the history of the canal, when it was first commissioned in 1938, in 1963 and 1977 after extensive clearing and in 1987 after relining.

The aim of the project was to restore some capacity to the canal by installing additional coping blocks and some aluminium sheeting at key locations to ensure minimum freeboard levels are maintained.

The project for Hydro Tasmania included the installation of coping blocks to the existing canal and flume walls to increase the free-board capacity of the flume/canal. A total of 3,500 blocks were installed (400x190x100) on top of the canals and flumes to increase water capacity.

Head Office

10b Industrial Dr, Ulverstone,
TAS 7315

PO Box 812
Ulverstone, TAS 7315
info@vec.com.au

Phone +61 3 6425 6530
Fax +61 3 6425 6112

Hobart Office

Level 3, 116 Bathurst Street
Hobart, TAS 7000

PO Box 812
Ulverstone, TAS 7315
info@vec.com.au

Phone +61 3 6425 6530
Fax +61 3 6425 6112

Melbourne Office

Level 10, 567 Collins Street, 
Melbourne, VIC 3000

PO Box 812 
Ulverstone, TAS 7315
info@vec.com.au

Phone +61 (03) 9278 5100
Fax +61 3 6425 6112

Queensland Office

2 Burke Street,
Woolloongabba, QLD 4102

PO Box 812 
Ulverstone, TAS 7315
info@vec.com.au

Phone +61 3 6425 6530
Fax +61 3 6425 6112