Small Farm Dam Research Repository

South West (Corangamite) Dam 3 SW 3

Summary

Location: Rokewood, Golden Plains Shire, Corangamite CMA

Primary Land use: Mixed farming, cropping and grazing
Australian Drainage Division: Southeast Coast (Division II)
Australian River Basin: Lake Corangamite (Basin 34)

Catchment Geology:
Miocene to Holocene Newer Volcanic Group: basalt flows (Neo), stony rises basalt (Neo2);
Pleistocene to Holocene alluvium: generic (Qa1)

Catchment Geomorphology:
6.0 Western Plains (Tier 1);
6.1 Volcanic Plains (Tier 2);
6.1.3 Plains with poorly developed drainage and shallow regolith (Tier 3)

Australian Soil Classification: Sodosol

Catchment Soils:

South West Dam 3 - Catchment Soils

About

Location	-37.96905,143.70809
Shape Profile	Custom
Maximum depth	3m
Current depth/Water level	N/Am
Water level offset	0.2m
Dam area	410m²
Maximum volume	479m³
Catchment area	791520.00m²

Water balance

Water balance forecasts

The rating curve chart shows the volume of the dam in relation to vertical water level.
The water balance forecast chart shows the predicted water level and volume for various climate scenarios from the starting water level.

Dam area:

m²

Catchment area:

m²

Maximum volume:

m³

Maximum depth:

Current (Starting) depth:

Household demand:

people

Stock demand:

cattle

Stock demand:

sheep

Climate estimates Shape profile:

Changing any of the above variables will re-generate the charts and data tables.

Dam rating curve

Water balance forecasts

20 year monthly climate range

Month	Rainfall range				Evaporation range
	Decile 1	Decile 3	Decile 5	Decile 7	Decile 10	Decile 7	Decile 5	Decile 3
	Drought	Dry	Average	Wet	Drought	Dry	Average	Wet
January	1.4mm	19.8mm	21.8mm	37mm	251mm	214.8mm	205.6mm	187.2mm
February	0.8mm	6.9mm	26.5mm	26.6mm	435.6mm	381.1mm	365.6mm	345mm
March	9.6mm	20.7mm	23.2mm	39.5mm	345.2mm	316.6mm	299.9mm	272.4mm
April	13.4mm	18.9mm	31.5mm	48.5mm	257.4mm	240.4mm	213.7mm	202.6mm
May	14mm	33.6mm	41.4mm	50.1mm	176.8mm	144.1mm	131.2mm	121.4mm
June	10.8mm	27.4mm	40.8mm	61mm	109.1mm	90.3mm	83.8mm	80.1mm
July	30.3mm	39.8mm	45.2mm	54mm	85.3mm	78.8mm	76mm	73.5mm
August	19.9mm	31.2mm	47.5mm	58.5mm	120.3mm	99.2mm	96.3mm	93.4mm
September	24mm	39.8mm	41.9mm	55.6mm	166.6mm	150.9mm	143.9mm	137.8mm
October	9.4mm	30.7mm	37.7mm	71.3mm	265.7mm	212.6mm	205.2mm	197.4mm
November	18.4mm	37.9mm	47.9mm	56.4mm	339.3mm	282.1mm	272.7mm	250.1mm
December	9.6mm	27.9mm	33.1mm	41.5mm	392.7mm	351mm	332.1mm	315.9mm

Monitoring

Weather and soil moisture

Weather Station Dashboard (NON SSL)

Rainfields3 comparison

Water level

Spatial mapping

Developed by CeRDI

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Climate history

20 year monthly climate range

Month	Rainfall range				Evaporation range
	Decile 1	Decile 3	Decile 5	Decile 7	Decile 10	Decile 7	Decile 5	Decile 3
	Drought	Dry	Average	Wet	Drought	Dry	Average	Wet
January	1.4mm	19.8mm	21.8mm	37mm	251mm	214.8mm	205.6mm	187.2mm
February	0.8mm	6.9mm	26.5mm	26.6mm	435.6mm	381.1mm	365.6mm	345mm
March	9.6mm	20.7mm	23.2mm	39.5mm	345.2mm	316.6mm	299.9mm	272.4mm
April	13.4mm	18.9mm	31.5mm	48.5mm	257.4mm	240.4mm	213.7mm	202.6mm
May	14mm	33.6mm	41.4mm	50.1mm	176.8mm	144.1mm	131.2mm	121.4mm
June	10.8mm	27.4mm	40.8mm	61mm	109.1mm	90.3mm	83.8mm	80.1mm
July	30.3mm	39.8mm	45.2mm	54mm	85.3mm	78.8mm	76mm	73.5mm
August	19.9mm	31.2mm	47.5mm	58.5mm	120.3mm	99.2mm	96.3mm	93.4mm
September	24mm	39.8mm	41.9mm	55.6mm	166.6mm	150.9mm	143.9mm	137.8mm
October	9.4mm	30.7mm	37.7mm	71.3mm	265.7mm	212.6mm	205.2mm	197.4mm
November	18.4mm	37.9mm	47.9mm	56.4mm	339.3mm	282.1mm	272.7mm	250.1mm
December	9.6mm	27.9mm	33.1mm	41.5mm	392.7mm	351mm	332.1mm	315.9mm