260 THE PROSPECT AND KENNY HILL SCHEMES. 
excessive drought. The eminent hydraulic engineer, Mr, 
Clark,in his Report on the Commissioners’ scheme for water supply 
to Sydney, in recognition of the above essential qualification of its 
storage reservoir, thus alludes to it:—‘The prominent feature of 
the Upper Nepean Scheme is the Prospect reservoir ; it resembles 
the Yan Yean in Victoria, and affords, like it, a very abundant 
artificial storage, so essential in a climate liable to extended periods 
of drought.’ 
Prospect RESERVOIR. 
e physical features of the Prospect Reservoir are thus 
described by Mr. Moriarty, Engineer-in-Chief of the Harbours and 
broad flat basin, bounded on the north-west and south by a semi- 
circular amphitheatre of low hills forming the divisio aquarium 
of Botany Bay, the Hawkesbury, and Port Jackson. Lower 
down, where it is proposed to place the dam, the dn? contracts 
about 1} mile in width.” The area and capacity ied the 
is proposed to draw off only the upper 25 feet of water, 
quantity available for supply would be reduced to 7, 110 million 
gallons, equal to nineteen months’ supply for the present 
tion of Sydney and suburbs, allowing 100 gallons per per 
ay. It would be of about the same superficial area as the Yan 
Yean, but considerably deeper, and would contain a larger 
quantity of water. en the water in the rese rs rae 
- 
stand at 195 feet above sea level, and might be drawn 
bottom of a reservoir—and there is abundant mate i » The 
kind in the neighbourhood for the formation of ened 
_ Prospect dam, as measured, is 7, 904 feet sar and 80 puddle, 
~The cubical contents of its embankment t, inclusive of el memeM 
4 Mr. Moriarty, at £176, 136, inclusive of Dies ee a - 
works. Its base, after removal of the s ‘ £10,400. 
even bed of firmshale. The price of the land nd is valued ® j 
Kenny Hitt Reservoir. % 
The site of the Kenny Hill reservoir is ye the summit of Pet 
western flank of the dividing range of the aren = 
Campbelltown Valley, being the same range W’ canal 
e traverses to the reservoir, a Ne 
canal lin 
enters it nee a og miles from the starting point, in the : 
