d'W.E. New Territories.
134
The Conduit, which is of lime and cement concrete and faced with cement mortar, is capable of delivering ten million gallons of water daily into the North Conduit. It has a uniform grade of 1 in 272 and a length of 6,030 feet. The intake dam is constructed of cement concrete displacer and has an overflow sill level of 515.00 A.O.D. The length of the overflow sill is 50 feet and the top of the Dam stands at 525 A.O.D.
The overall length of the Dam is 115 feet 6 inches and its maximum height 34 feet from the lowest foundation level, 594 c. yds. of cement concrete displacer being used in its construction.
A gauge basin with a V notch measures the delivery into the Temporary Conduit, and an automatic apparatus has been installed for recording the flood discharge.
1925 Estimates, 1925 Sup. Vote, $25,000.00 Total Estimates, ...$65,000.00
30,000.00
$55,000.00 Expenditure to 31.12.25......... $54,770.52
1925 Expenditure. $54,770.52
(d). North Conduit.-A Contract for $70,801.00 was let in February to Mr. Ng Wah who made excellent progress and completed the works by the end of the year. It commences at the termination of the Temporary Conduit in the Gorge below Pineapple Pass and discharges into the North Tunnel below Smuggler's Ridge.
It has a uniform grade of 1 in 1,930, a length of 2,900 feet, and is capable of delivering twenty million gallons per day.
The width at the level of the path, which is 6 inches above the overflow level and 4 feet 6 inches above the level of the invert, is 5 feet 6 inches. The width at the invert is 2 feet.
For its construction cement concrete was used throughout, and it is provided with suitable intakes, overflows, sand pits, and washout pipes.
1925 Estimates, 1925 Sup. Vote, .$30,000.00 Total Estimates. ...$73,000.00
40,000.00
$70,000.00
Expenditure to 31.12.25, $67,231.30
1925 Expenditure, $67,231.80
(c). North and South Tunnels and South Conduit.
North Tunnel.-Operation was commenced in April at its South end and at the close of the year a length of 1,043 feet has been driven under the Smuggler's Ridge,
d'W.E. New Territories.
134
The Conduit, which is of lime and cement concrete and faced with cement mortar, is capable of delivering ten million gallons of water daily into the North Conduit. It has a uniform grade of 1 in 272 and a length of 6,030 feet. The intake dam is con- structed of cement concrete displacer and has an overflow sill level of 515.00 A.O.D. The length of the overflow sill is 50 feet and the top of the Dam stands at 525 A.O.D.
The overall length of the Damn is 115 feet 6 inches and its maximum height 34 feet from the lowest foundation level, 594 c. yds. of cement concrete displacer being used in its construc- tion.
A gauge basin with a V notch measures the delivery into the Temporary Conduit, and an automatic apparatus has been in- stalled for recording the flood discharge.
1925 Estimates, 1925 Sup. Vote,
$ 25,000.00 Total Estimates, ...$ 65,000.00
30,000.00
$55,000.00 Expenditure to
1925 Expenditure. $ 54,770.52
31.12.25......... $ 54,770.52 ·
(d). North Conduit.-A Contract for $70,801.00 was let in February to Mr. Ng Wah who made excellent progress and com- pleted the works by the end of the year. It commences at the. termination of the Temporary Conduit in the Gorge below Pine- apple Pass and discharges into the North Tunnel below Smug- gler's Ridge.
It has a uniform grade of 1 in 1,930, a length of 2,900 feet, and is capable of delivering twenty million gallons per day.
The width at the level of the path, which is 6 inches above the overflow level and 4 feet 6 inches above the level of the in- vert, is 5 feet 6 inches. The width at the invert is 2 feet.
For its construction cement concrete was used throughout. and it is provided with suitable intakes, overflows, sand pits. and washout pipes.
1925 Estimates, 1925 Sup. Vote,
.$ 30,000.00 Total Estimates. ...$ 73,000.00
40,000.00
$ 70,000.00
Expenditure to 31.12.25,
$ 67,231.30
1925 Expenditure, $ 67,231.80
(c). North and South Tunnels and South Conduit.
North Tunnel.-Operation was commenced in April at its
South end and at the close of the year a length of 1,043 feet has been driven under the Smuggler's Ridge,
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