Lockhart Shire Council

Lockhart Shire is in centre of the Riverina region of NSW; main towns and villages include Lockhart, The Rock, Yerong Creek, Pleasant Hills and Milbrulong. Lockhart is centrally situated 62kms south-west of Wagga Wagga, 62 kms east of Narrandera and 105 kms north of Albury.

http://www.lockhart.nsw.gov.au/

http://www.lockhart.nsw.gov.au/environment/flood-study.aspx The township of Lockhart experiences regular flooding from the Brookong Creek and also from major overland flow. Brookong Creek flows from north to south through the township of Lockhart and discharges into Urangeline Creek, which drains to the Murray River via Billabong Creek and the Edward River. Brookong Creek is fed by numerous small ephemeral streams. At Lockhart the Creek has a catchment area of 150 km². Upstream of Wattles Road, the Brookong Creek channel is incised within a confined floodplain. However, downstream of the Wattles Road crossing, the Creek is highly ephemeral and the channel slope flattens and the floodplain opens up. The Creek itself consists mainly of shallow gullies that remain dry for the majority of the year.

Overland flow flooding in the region is generally caused by overland flow paths meeting manmade structures such as roads and railways. This situation causes flood waters to backup and be diverted into urban areas. This is the mechanism for flows that travel in a westerly direction through town causing flooding in areas along and to the south of Brookong Street. Flooding in this area is due to flows from a number of unnamed tributaries in the Milbrulong area (situated east of the town) interacting with The Rock/Oaklands railway.

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