Q117
Works carried out and chargeable to Loan Funds.
Two independent 24" dia. draw off pipes one from each half discharge into a wet well from which water can be drawn off into the existing or either of the two future 24" dia. trunk mains, all of which are controlled by penstock valves. The main walls of the reservoir are constructed of concrete of gravity section considerably reduced where the foundation and backing of the wall were satisfactory. The concrete invert is 9" thick and laid out in bays 15′0″ × 12′0″ to correspond with the layout of the reinforced concrete piers which support the reinforced flat slab concrete roof. Where rock foundations to the main walls occur above invert level a ledge was formed to carry the wall, the rock surface below this ledge down to invert level being lined with a 9" layer of concrete.
Considerable saving of concrete was thus effected.
The following are a few particulars of the works:
Capacity 11.41 million gallons. Top Water Level 443.00 O.D. Average depth when full 18′0″ Area of roof 111,000 square feet. No. of piers 522 Length of main walls 1,276 feet. Length of Division wall 285′ Concrete in main and Division Walls 4,620 cube yards. Concrete in invert 2,700 Reinforced concrete roof 2,000 Expenditure for 1930 $146,032.95 Expenditure up to 31.12.30 $273,188.22(o) 2nd Section Preliminary Works. (This work referred to in paragraph 283 (h) of last year's Report) Preliminary investigations were sufficiently completed to enable a report to be submitted on this section. The Report was sent by Government to the Secretary of State who made arrangements for a Consulting Engineer to inspect and report on the site of the Gorge Dam and 2nd Section works.
This Engineer had not arrived by the end of the year.
Expenditure for 1930 $2,206.37 Expenditure up to 31.12.30 $11,325.05(p) Byewash Reservoir.--This work was referred to in paragraph 287 of last year's Report. Excavation to foundations was proceeded with slowly owing to a soft seam appearing in the stream bed. A small quantity of concrete in the foundations of the backing was poured at the end of February and a short length of seal concrete was placed at the end of March. Concreting was continued with varying progress from April and
Q117
Works carried out and chargeable to Loan Funds.
Two independent 24" dia. draw off pipes one from each half discharge into a wet well from which water can be drawn off into the existing or either of the two future 24" dia. trunk mains, all of which are controlled by penstock valves. The Main walls of the reservoir are constructed of concrete of gravity section considerably reduced where the foundation and backing of the wali were satisfactory. The concrete invert is 9" thick and laid out in bays 15′0′′ × 12′ 0′′ to correspond with the layout of the reinforced concrete piers which support the reinforced flat slab concrete roof. Where rock foundations to the main walls occur above invert level a ledge was formed to carry the wall, the rock surface below this ledge down to invert level being lined with a 9" layer of concrete.
Considerable saving of concrete was thus effected.
The following are a few particulars of the works :
Capacity
Top Water Level
Average depth when fuli
Area of roof
No. of piers
Length of main walls
Length of Division wall
Concrete in main and Division
Wails
Concrete in invert
11.41 million gallons.
443.00 O.D.
18′0′′
111,000 square feet.
522 1,276 feet.
285
J
4,620 cube yards.
2.700
Reinforced concrete roof
2,000
Expenditure for 1930
Expenditure up to 31.12.30
$146,032.95 $273,188.22
(0) 2nd
was
Section Preliminary Works. (This work referred to in paragraph 283 (h) of last year's Report) Prelimin- ary investigations were sufficiently completed to enable a report to be submitted on this section. The Report was sent by Government to the Secretary of State who made arrangements for a Consulting Engineer to inspect and report on the site of the Gorge Dam and 2nd Section works.
This Engineer had not arrived by the end of the year.
Expenditure for 1930
Expenditure up to 31.12-30
$ 2,206.37 $11,325.05
(p) Byewash Reservoir.--This work was referred to in paragraph 287 of last year's Report. Excavation to foundations was proceeded with slowly owing to a soft seam appearing in the stream bed. A small quantity of concrete in the foundations of the backing was poured at the end of February and a short length of seal concrete was placed at the end of March. Concreting was continued with varying progress from April and
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