Glennies Creek DamPopular spot in the heart of the Hunter

Glennies Creek
Latest dam level

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Status Open to Public

Visit the Dam

Glennies Creek Dam is a popular inland sport and recreation destination near Singleton, offering year-round attractions for water sports and fishing enthusiasts, nature lovers, bushwalkers, campers and picnickers. Glennies Creek operates with nearby Glenbawn Dam to supply water for irrigation, environmental flows, stock, industry and household needs in the Hunter Valley.

Look out points

Dam wall

Walk across the dam wall for views of the lake and Mount Royal Range. The curved wall is 67 metres high and 535 metres long.

Lake St Clair foreshores

The extensive lake foreshores provide many vantage points with panoramic views of the lake and rolling countryside. Carrowbrook Road along the eastern foreshore is particularly scenic.

Opening hours

Dam grounds

Open 24 hours a day, all year round. Singleton Council 02 6578 7290.


Glennies Creek Dam is about 25 kilometres north of Singleton in the NSW Hunter Valley. Singleton is about 200 kilometres north-west of Sydney via the Pacific and New England highways.


  • Camping
  • Picnic areas
  • Toilets
  • Fishing
  • Shower facilities
  • Boat ramps
  • Water sports
  • Bushwalking



Restrictions are in place to protect our water supply and ensure that everyone has an enjoyable and safe visit - with penalties up to $44,000 applying:


Recreation Areas at WaterNSW dams will be closed on ALL Total Fire Ban days.

The Glennies Creek Dam Experience

Things to see and do

1. Camp

Lake St Clair’s extensive foreshores offer sites for unpowered camping with lake views. A camping ground on the eastern foreshore on Bridgman Road has powered sites, showers, toilets, boat ramp, electric and wood barbecues, and a camp kitchen.

2. Water sports

Water sports include skiing, jet skis, sailing, canoeing and swimming. The boat ramp is located at the camping grounds on the lake’s eastern foreshore.

3. Fishing

The lake is stocked with Australian bass. Golden perch (yellow belly) and silver perch are other top catches. Catfish and eel are also caught.

Facts & History

Glennies Creek Dam is 39 kilometres upstream from the junction of Glennies Creek with the Hunter River and about 25 kilometres north of Singleton in the NSW Hunter Valley. The dam is about 225 kilometres north-west of Sydney.

Glennies Creek Dam has a capacity of 283,000 megalitres, about half that of Sydney Harbour.

The creek and the dam are named after James Glennie, a Royal Navy captain who was granted creek frontage in 1824. The lake and the valley behind the dam are known as St Clair.

Why the dam was built

Glennies Creek Dam was built in the 1980s to supplement supplies from Glenbawn Dam in the Upper Hunter and meet increased demand in the Hunter Valley for water for agriculture, industry and towns.

Vineyards and pastures for sheep and cattle are the main agricultural industries supported by irrigation. Glennies Creek Dam also provides water for nearby coal mines, the town of Singleton, and for domestic and stock use.

The dam’s small 233 square kilometre catchment includes the Mount Royal National Park.

How the dam was built

Glennies Creek Dam is a curved rock-fill embankment wall with a concrete slab on the upstream face. The wall is 535 metres long and 67 metres high.

An unlined rock cut spillway is located just south of the dam wall. The cutting provided all the rock-fill needed to build the dam wall.

A 60 metres high control tower with variable inlets allows for control of the quality and temperature of water released from the dam.

Construction began in 1980 and finished in 1983.

Dam Summary

Metres High
Length: 535 metres
283,000 ml total operating capacity
Size of lake:
15 km 2
Catchment: 233 square kilometres

Dam Wall

Size Measurement
Length 535m
Thickness of base m
Width of central spillway m
Concrete mass t
Width of auxillary spillway m
Length of auxillary spillway m

Lake and Catchment

Size Measurement
Area 15km2
Length of lake km
Length of foreshores km
Maximum depth of reservoir m
Catchment area 233km2
Annual average rainfall mm


Size Measurement
Diameter mm
Length km each
Capacity ML per day


In consultation with our stakeholders and the community we review and update these notifications.

To receive EWN notifications below please register your details with us.

To see all past archived notifications, please visit all dam notifications.

High regulated releases

High regulated releases are when our operations may impact landholders immediately downstream or we are releasing higher than normal flows.

Normal operations

  • Range - 0 to 350 megalitres per day.
  • Notification - No notifications in this range.

Increased flows

  • Trigger - When flow increases above 350 megalitres per day.
  • Notification - Releases are planned to increase from XX,000 megalitres per day (ML/day) to YY,000 ML/day at 00:00 on DD/MM/YY.

Flood notifications

Flood notifications indicate the dam is releasing controlled or uncontrolled flows, likely to cause downstream flooding.

Flood operations

  • Trigger - Spillway flows (uncontrolled*) more than 0.5 metres over spillway.
  • Notification - Flows of XX,000 megalitres per day are being passed.

Flood operations - white alert

  • Trigger - Spillway flows (uncontrolled*) more than 1 metres over spillway.
  • Notification - Flows of XX,000 megalitres per day are being passed.

* refers to automatic spillway flows at ungated dams once storage capacity exceeds 100%.

Dam safety notifications

Alerts will be issued in the following unlikely events:

  • When there is a reasonable possibility of dam failure.
  • State Emergency Service (SES) require advance public warning to evacuate if such a failure may occur.

Yellow alert

  • Trigger - Spillway flows (uncontrolled*) more than 1.4 metres over spillway.
  • Notification - You are advised to make preparations in case there is a need to evacuate in the future.

Amber alert

  • Trigger - Storage level has reached top of intake tower.
  • Notification - You are advised to move to higher ground and if necessary evacuate.

Red alert

  • Trigger - Storage level has reached embankment crest level.
  • Notification - Residents are advised to evacuate to their designated flood assembly points.

More information

Bureau of MeteorologyWeather forecasts and warningsBOMvaries by region
NSW Algae HotlineAlgal alert details and algae levelsDPI Water1800 999 457
NSW State Emergency ServiceFlood or severe weather warnings/adviceNSW SES132 500
NSW Water InformationStorage levels and river heightsWater infoN/A
Water NSWTo view or edit your registration detailsEWN1300 662 077
To provide feedback on our EWNFeedback1300 662 077
Friday 27 November
2,375,199 ML
2,581,850 ML
11,375 ML
1,625 ML
-100,712 ML
Friday 27 November
Glennies Creek Dam
Wednesday 25 November