243. Distribution, Mainland:-
Mains laid
Size of Main Length laid (feet) Locality Remarks 12" Spun iron 1,408 From Castle Peak Road to Pipers Hill Service Reservoir. New trunk main. 8" Cast iron 220 Un Chau Street near Castle Peak Road. New main. 6" Spun iron 700 Canton Road from Soy Street to Nelson Street. Replacing old 4′′ main. 6" 276 Tong Mi Road near Prince Edward Road. Replacing old 3′′ main. 4" 630 Chung Wah Street. New main. 4" Cast iron 385 Baker Street between Lo Lung Hang Street and Gillies Avenue. New main. 4" Spun iron 158 Kwang Tun Street. New main.188 feet of 8′′ cast iron main were removed from Castle Peak Road near Kwong Shing Street.
A water supply was given to the refugee camp at Kamtin at a cost of $26,091.25. This involved the construction of a temporary intake and gauge wall and the laying of 2,415 feet of 6", 2,367 feet of 5", 5,456 feet of 4", 572 feet of 3", 406 feet of 1" and 513 feet of "wrought iron piping. The work was charged to this vote as the supply will later be available for the district.
Expenditure
Expenditure to 31st Dec., 1938 $40,366.34 $44,588.25
244. Shing Mun Valley Scheme-Catchwater-First Section:-This work was referred to in paragraph 219 of last year's report.
The contract for this section was completed on 24th December, eleven days over the contract time, which, owing to the greater amount of rock encountered, was extended from twelve to fourteen months. The final cost of the work under the contract, after deduction of a penalty of $825.00 for overtime, amounted to $181,507.69.
This section of the catchwater, 5,975 feet in length, drains 323 acres of the southern slopes of Tai Mo Shan and discharges into the Jubilee Reservoir through an outfall channel 540 feet in length. It is designed to take the discharge from the second, third and fourth sections, which, with the run-off from its own catchment area, total 1,200 cusecs at .4" per hour at a velocity of ten feet per second. This section was constructed in two different sizes, having cross sectional areas of 127.0 and 116.5 square feet, with gradients of 1 in 1230 and 1 in 1006 respectively. The general construction comprises an invert, containing a dry weather flow channel on the path side, and side walls throughout having a batter of 21⁄2 to 1, all of 6′′ thickness. The invert, dry weather flow channel and the lowest foot of the side walls, were constructed of 1:2:4 cement concrete, and the remainder of the side walls of 1:4:8 cement concrete. The side wall on the path side is terminated with a cope 1'-6" × 0′-6′′ of 1:4:8 cement concrete. The outfall section is stepped
243. Distribution, Mainland:-
Mains laid
Size of
Length
laid
Main
(feet)
12" Spun 1,408
iron
8" Cast iron
220
6" Sprin
700
iron
6"
276
Q 45
Locality
Remarks
From Castle Peak Road to Pipers New trunk main.
Hill Service Reservoir.
Un Chau Street near Castle Peak New main.
Road.
Canton Road from Soy Street to Replacing old 4′′ main.
Nelson Street.
Tong Mi Road near Prince Edward Replacing old 3′′ main.
Road.
4"
630
Chung Wah Street.
New main.
4" Cast
385
iron
Baker Street between Lo Lung Hang New main.
Street and Gillies Avenue.
4" Spun
158
Kwang Tun Street.
New main.
iron :
188 feet of 8′′ cast iron main were removed from Castle Peak Road near Kwong Shing Street.
A water supply was given to the refugee camp at Kamtin at a cost of $26,091.25. This involved the construction of a temporary intake and gauge wall and the laying of 2,415 feet of 6", 2,367 feet of 5", 5,456 feet of 4", 572 feet of 3", 406 feet of 1" and 513 feet of "wrought iron piping. The work was charged to this vote as the supply will later be available for the district.
Expenditure
Expenditure to 31st Dec., 1938
$40,366.34
$44,588.25
244. Shing Mun Valley Scheme-Catchwater-First Section:-This work was referred to in paragraph 219 of last year's report.
The contract for this section was completed on 24th December, eleven days over the contract time, which, owing to the greater amount of rock encountered, was extended from twelve to fourteen months. The final cost of the work under the contract, after deduction of a penalty of $825.00 for overtime, amounted to $181,507.69.
This section of the catchwater, 5,975 feet in length, drains 323 acres of the southern slopes of Tai Mo Shan and discharges into the Jubilee Reservoir through an outfall channel 540 feet in length. It is designed to take the discharge from the second, third and fourth sections, which, with the run-off from its own catchment area, total 1,200 cusecs at .4" per hour at a velocity of ten feet per second. This section was constructed in two different sizes, having cross sectional areas of 127.0 and 116.5 square feet, with gradients of 1 in 1230 and 1 in 1006 respectively. The general construction comprises an invert, containing a dry weather flow channel on the path side, and side walls throughout having a batter of 21⁄2 to 1, all of 6′′ thickness. The invert, dry weather flow channel and the lowest foot of the side walls, were constructed of 1:2:4 cement concrete, and the remainder of the side walls of 1:4:8 cement concrete. The side wall on the path side is terminated with a cope 1'-6"× 0′-6′′ of 1:4:8 cement concrete. The outfall section is stepped
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