Australia utility plans dam safety work at 48-MW Catagunya

Australia utility Hydro Tasmania has applied to government regulators for permission to perform major dam safety refurbishment at its 48-MW Catagunya Dam on Tasmania island's Derwent River.

Hydro Tasmania said July 13 it plans to construct concrete buttresses to support Catagunya, a concrete gravity dam strengthened by steel cables. The utility said it is concerned that corrosion is weakening the cables, and that the buttresses would eliminate the need for the cables.

Hydro Tasmania submitted an application to the Assessment Committee for Dam Construction to carry out the work. It is to consult with all stakeholders prior to commencement of construction.

The work, estimated at A$25 million to A$30 million (US$21.7 million to US$26 million), is expected to begin in March 2008 and take 18 months for completion. During that period, Lake Catagunya will be lowered, with normal levels restored upon completion.

At the time of its construction in 1962, the 49-meter-tall Catagunya was the largest dam of its type in the world. Water from Lake Catagunya flows through a concrete flume and twin steel penstocks to two 24-MW Francis turbine-generators. Catagunya is one of 10 power stations in the Derwent River catchment, which provides 27 percent of Tasmania's electricity.

HydroVision International 2014 Keynote Speakers

Presenting the HydroVision International 2014 Keynote Speakers

Check out a slideshow covering the keynote speakers at the HydroVision International 2014 conference and exhibition

Click Here >>

Hydro Industry Financials

Buyers Guide Products

Feasibility Studies

Knight Piesold implements feasibility studies, ...

Underwater Dam Inspection

Hibbard Inshore Inspects: Trash Racks, Lower Ou...

BoatBuster - Public Safety Boat Barriers

Worthington provides complete waterway barrier ...

Geotechnical Engineering, Geologoly and Dam

Design and planning of dams, dykes and structur...

Waterstop Repair

Emagineered Solutions® Hydrophilic Polyurethane...

Joint Leak Repair

Emagineered Solutions® has expertly serviced co...

Most Read Articles

Recent Comments

Buyers Guide Companies

Toyo Pumps North America Corp

Provides slurry pumping solutions. Provides sub...

McMillen LLC

Offers a “design-procure-build-operate” package...

RST Instruments Ltd

Manufactures quality dam monitoring instrumenta...

Ruhfus Systemhydraulik GmbH

Designs and manufactures hydraulic servomotors ...

Damwatch Engineering Ltd

Damwatch is a NZ-based dam engineering consulta...

Continuing Education

Professional Development Hours
To access a course listing associated to a specific topic listed below, click on the topic of choice from the list below.

07/01/2014
Volume 33, Issue 6
file
07/01/2014
Volume 22, Issue 4
file

Archived Articles

2006 | 2007 | 2008 | 2009 | 2010 2011 | 2012 | 2013
Hydro Review Past Issues