Hinze Dam

Hinze Dam
Spillway tower of Hinze Dam following Stage 3 upgrade, 2011
Location of the Hinze Dam in Queensland
Country	Australia
Location	South East Queensland
Coordinates	28°3′2″S 153°17′2″E / 28.05056°S 153.28389°E / -28.05056; 153.28389Coordinates: 28°3′2″S 153°17′2″E / 28.05056°S 153.28389°E / -28.05056; 153.28389
Purpose	Potable water supply Flood mitigation
Status	Operational
Opening date	1976 (1976) (Stage 1) 1989 (1989) (Stage 2) 2011 (2011) (Stage 3)
Operator(s)	SEQ Water
Dam and spillways
Type of dam	Embankment dam
Impounds	Nerang River
Height	108 m (354 ft)
Length	1,850 m (6,070 ft)
Dam volume	4,261×10^3 m3 (150.5×10^6 cu ft)
Spillway type	Uncontrolled
Spillway capacity	550 m3/s (19,000 cu ft/s)
Reservoir
Creates	Advancetown Lake
Total capacity	310,730 ML (6.835×1010 imp gal; 8.209×1010 US gal)
Catchment area	207 km2 (80 sq mi)
Surface area	1,500 ha (3,700 acres)
Normal elevation	82 metres (269 ft) AHD
Website www.seqwater.com.au

The Hinze Dam is a rock and earth-fill embankment dam with an un-gated spillway across the Nerang River in the Gold Coast hinterland of South East, Queensland, Australia. The main purpose of the dam is for potable water supply of the Gold Coast region. The impounded reservoir is called Advancetown Lake.

Hinze Dam was named in honour of the Hinze family who lived in the valley that was flooded by the dam.

The dam is located in Advancetown, 15 kilometres (9.3 mi) south-west of Nerang immediately downstream of the confluence of the Nerang River and Little Nerang Creek.

The earthfill dam structure is 108 metres (354 ft) high and 1,850 metres (6,070 ft) long. The 4,261-thousand-cubic-metre (150.5×10^⁶ cu ft) dam wall holds back the 310,730-megalitre (6.835×10¹⁰ imp gal; 8.209×10¹⁰ US gal) reservoir when at full capacity. From a catchment area of 207 square kilometres (80 sq mi) that includes the Numinbah Valley and Springbrook Plateau, with most being contained within state forests and national parks, the dam creates Advancetown Lake, with a surface area of 1,500 hectares (3,700 acres). The uncontrolled un-gated spillway, located at 82 metres (269 ft) above sea level, has a discharge capacity of 550 cubic metres per second (19,000 cu ft/s). Initially managed by the Gold Coast City Council up until 2008, the dam is now managed by Seqwater.