The city of Wagga Wagga is located on the Murrumbidgee River with the catchment of 26,400 km2. Wagga Wagga has population of approximately 63,000 and on numerous occasions has been threatened by major floods since official records began in 1886.
The City is protected from flooding by levee systems with a total length of approximately 15 km. The main levee protecting the city of Wagga Wagga, south of Murrumbidgee River, was originally constructed in the 1960s and subsequently upgraded between 1978 and 1983 to a level 1 m above the record 1974 flood. According to recent flood modelling the current protection level is considered to be 1 in 60 year ARI event.
The 1990 North Wagga Wagga levee construction only provided security for a 1 in 20 year ARI flood event. This levee was overtopped by the 2012 flood event.
The upgrade of the Murrumbidgee River levee system in Wagga Wagga commenced in 2017, giving residents, for the first time, a 1 in 100 year level of protection against flooding. Raising the levee system gives peace-of-mind assurance by safeguarding the entire central business district, many of the city’s critical assets and thousands of homes.
Stage 1 of the levee upgrade is completed. This comprises the sections from:
- Flowerdale Lagoon to Gobbagombalin Bridge (including Flowerdale spillway)
- Copland Street to Kooringal Road Monumental Cemetery (west side of Kooringal Road) and Kooringal spillway.
Stage 2 works from Gobbagombalin Bridge to Hammond Avenue is currently under construction.
The project cost is $23M for Stage 1 and Stage 2 and includes contributions from WWCC ($7.75M), the State Government ($4.1M) and the Federal Government ($10M).
CONTACT Steve Warrell
M 0403 098 131
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Engineers Australia Member Services
1300 653 113