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 when full	3m
Current (or actual) water depth	1m
Water level offset	0.2m
Dam area	410m²
Maximum volume	479m³
Catchment area	791520.00m²

Water balance

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

Chart options

Maximum depth when full:

Current (or actual) water depth:

Household demand:

people

Stock demand:

cattle

Stock demand:

sheep

Climate estimates

Auto calculated variables

Dam area:

m²

Catchment area:

m²

Maximum volume when full:

m³

Shape profile:

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	26.4mm	46.5mm	251mm	214.8mm	205.6mm	185.4mm
February	0.8mm	6.9mm	26.5mm	26.6mm	184.6mm	166.9mm	159.4mm	157.4mm
March	9.6mm	20.7mm	25.6mm	40.5mm	171.4mm	149.7mm	129.2mm	121.7mm
April	13.4mm	29.8mm	32.4mm	51.6mm	96.7mm	85.9mm	78mm	72.1mm
May	11.1mm	33.6mm	41.4mm	50.1mm	71.8mm	55.2mm	47.7mm	44.3mm
June	10.8mm	27.4mm	43.7mm	68.9mm	42.5mm	36.2mm	33.8mm	32mm
July	30.3mm	39.8mm	45.2mm	54mm	51.5mm	43.2mm	40.2mm	37.3mm
August	19.9mm	27.1mm	47.5mm	55.6mm	73.2mm	61.1mm	55.1mm	52.5mm
September	21.2mm	39.8mm	39.9mm	55.6mm	101.2mm	88.8mm	86.9mm	78.3mm
October	5.8mm	22.6mm	37.6mm	59mm	164.5mm	127.3mm	118.9mm	110.1mm
November	18.4mm	37.9mm	47.9mm	56.4mm	174.8mm	155.9mm	145.7mm	130.9mm
December	6.3mm	25.5mm	30.4mm	41.5mm	235.7mm	193mm	180.3mm	171.1mm

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Rainfields3 comparison

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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	26.4mm	46.5mm	251mm	214.8mm	205.6mm	185.4mm
February	0.8mm	6.9mm	26.5mm	26.6mm	184.6mm	166.9mm	159.4mm	157.4mm
March	9.6mm	20.7mm	25.6mm	40.5mm	171.4mm	149.7mm	129.2mm	121.7mm
April	13.4mm	29.8mm	32.4mm	51.6mm	96.7mm	85.9mm	78mm	72.1mm
May	11.1mm	33.6mm	41.4mm	50.1mm	71.8mm	55.2mm	47.7mm	44.3mm
June	10.8mm	27.4mm	43.7mm	68.9mm	42.5mm	36.2mm	33.8mm	32mm
July	30.3mm	39.8mm	45.2mm	54mm	51.5mm	43.2mm	40.2mm	37.3mm
August	19.9mm	27.1mm	47.5mm	55.6mm	73.2mm	61.1mm	55.1mm	52.5mm
September	21.2mm	39.8mm	39.9mm	55.6mm	101.2mm	88.8mm	86.9mm	78.3mm
October	5.8mm	22.6mm	37.6mm	59mm	164.5mm	127.3mm	118.9mm	110.1mm
November	18.4mm	37.9mm	47.9mm	56.4mm	174.8mm	155.9mm	145.7mm	130.9mm
December	6.3mm	25.5mm	30.4mm	41.5mm	235.7mm	193mm	180.3mm	171.1mm