CO129-598-2 Tai Lam Chung Reservoir Project 24-6-1948 - 3-3-1949 — Page 60

ISLAND

DATA

1 DATE OF COMPLETION

2. TOP WATER LEVEL

ABOVE

TYTAM

1883

1904

503-25 FT. ARD] 500 FT.A.P.D.

3 HEIGHT (FOUNDATION LEVEL

4 THICKNESS AT BASE OF DAM

130 FT.

APPROX. 40FT.

52/2 FT.

WONG

INTERMEDIATE TYTAM TUK

NEI CHONG POKFULAM

HONG KONG WATER

ISLAND

TYTAM BYEWASH

EASTERN

TYTAM

WORKS-TABLE NOI STORAGE RESERVOIRS

WESTERN ABERDEEN

LOWER

KOWLOON

1907

1917

1899

1871

UPPER

1931

PAPER WORKS 1690 WATER WORKS RECONSTRUCTED 1932

1910

KOWLOON BYEWASH

1931

MAINLAND

SHEKLEIPUI RECEPTION

SHING MUN

GORGE DAM PINEAPPLE PASSİ

1925

1927

1936

1936

200 FT. A.P.D. | 119-50FT.A.P.D. | 730FT. A.P.D.| 554 FT. A.R.D.

90 FT.

161 FT.

60 FT.

87FT.

120FT. BELOW T.Wind

48 FT.

1,255 FT.

35 FT.

138 FT.

76 FT.

65 FT.

365 FT. A.P.D. |263-50FT.A.R.D. | 448FT.A.R.D.

112 FT.

72 FT

380FT. A.P.D.

645 FT. A.P.D.

480 FT. A.P.D.

625 FT. A.P.D.

625 FT. A.P.D.

143-5 FT.

73 FT.

48 FT.

285 FT.

82 FT.

550 FT.

220 FT.

700 FT.

470 FT.

5 LENGTH AT CREST OF DAMİ

6

TYPE OF PROVISION FOR

OVERFLOW

7 LENGTH OF SPILLWAY

480 FT.

SECONDARY SPILLWAY DAM

8

MATERIALS OF

9

CONSTRUCTION

DRAW OFF

ARRANGEMENTS

10

DRAW OFF LEVELS

11

DELIVERY BY

SECONDARY SPILLWAY DAM

CONCRETE WITH MASONRY FACE

VALVE TOWER IN MAIN DAM

2-

347 FT.

CENTER PORTION OF DAM OF SPILLWAY SECTION

390 FT.

CENTER PORTION

OF DAM OF SPILLWAY SECTION

CENTER" "BORTION

OF DAM OF

266 FT.

OVERFLOW WIERS

& CHANNEL

SPILLWAY SECTION|| AROUND ONE END

200FT.

580 FT.

OVERFLOW WIERS ⇓ CHANNEL

AROUND ONE END

400 FT.

CENTER PORTION

OF DAM OF

400FT.

RECONSTRUCTED TO

·PROVIDE CONTINUOUS

SPILLWAY SECTION|SPILLWAY AT CENTER

25/9-3"BAYS

CONCRETE WITH PRECAST FACING

600 FT

SECONDARY SPILLWAY DAM

140 FEET

CONCRETE

BLOCKS DOWNSTREAM GRANITE FACINGS

EARTH DAM

16/12-0" BAYS

CONCRETE WITH PRECAST FACING

MASONRY UPSTREAM

VALVE TOWER

VALVE TOWER

VALVE TOWER

IN MAIN DAM

4-

DIA.

CONGRETE

AND MASONRY

CEMENT CONCRETŲ DISPLACE CONCRETE STONE FACED WITH MASONRY FACE

VALVE TOWER VALVE TOWER VALVE TOWER VALVE TOWER &

RUBBLE CONCRETE WITH MASONRY FACE

VELVE TOWER ON FACE OF MAIN DAM |

4- 16" DIA.

18*** 487.466.4458 424PT|491.& 472 FT A.P.D. |100,160, 140, 120FT ARD]110 100,90.80.65,50.35. | 715,700. L 665 FT W.O. AT 406FTARD | N.Q. AT HIFT.A.PD WO. @HIFT.A.RO. 20FT WO #SFT. A P.D. NO. #67775FTARQ

GRAVITY

GRAVITY

4-

PUMPING TO GAUGE BASIN

AT TUNNEL ENTRANCE

-S

GRAVTY

بار

DRAW OFFS TO BELLMOUTH AT GAUGE BASIN PUMPED UP TO GAUGE BASIN | JO INS. INTAKE TO

THENCE VIA TUNNEL & BOWEN ROAD CONDUIT

DRAW OFF TUNNEL THRU DAM

ĮGRAVITY TO WEST POINT PUMPING TO PORFULAM FILTERS

CONDUIT TO (WEST POINT FILTERS

BLOCKS

VALVE TOWER

4- 16" DIA.

3- 14" DIA.

350 350 310, 291FT | 246.226. & 210FTARDĮ 435 415, 598,275. FT. WO. AT £70FT APD WO. AT 205 FT.

WO. AT 368 FT. APD.

GRAVITY AND BOOSTER PUMP

PUMPING

187 MAIN TO MT. DAVIS TUNNEL THEN 20 DAIN TO ELLIOT FILTERS

12/12-0*BAYS

CONCRETE

310 FT.

SECONDARY

SPILLWAY DAM

80 FT.

SECONDARY

SPILLWAY DAM

07 FT.

MASONRY

CONCRETE GRANITE FACING

360 340 320 300 FT 1638 624 & 610 FT, WO. AT STO FT.ARD. WO. AT 595 FT A.P.D.

GRAVITY

18*

GRAVITY

2-

472 & 445 FT. W.O. AT 450 FT, A.PD.

GRAVITY

2- 18" DAIN

BELLMOUTH OVERFLOW PLUS & AUTOMATIC SIPHONS

BELLMOUTH 19800 CUSZOS

SIPHONS 3600 CUSTOS

COMBINATION CONCRETE

AND ROCK-FILL

NONE

NONE

EARTH AND ROCK [FILL CONCRETE CORE,

AND SAND WEDGE

VALVE TOWER OVER. OVERFLOW TUNNEL AT MAIN

14- 30" DIA.

DAM

6:4-50 576 537-60 # 479-75 FT. A.RD.

MO. AT 486-23 FT. ARD.

GRAVITY

46°MAIN TO NORTH CONDUIT

GRAVITY

12 DELIVERY MAIN

18" MAIN

ACREAGE OF

13

27 ACRES

2.066 ACRES

18.801 ACRES

109.168 ACRES

BOWEN RO. CONDUIT

6.198 ACRES

THRU KOWLOON RES MAIN

14.462 ACRES

24.792 ACRES

25.825 ACRES

96.585 ACRES

15 ACRES

IS ACRES

9.750 ACRES

165.280 ACRES

RESERVOIR AT T.W. L.

14

STORAGE CAPACITY

36179 M.G.

22 M.G.

196 M.G.

1406 M.G

30. M.G

66 M.G.

173 M.C.

J07 M.G.

353 M.G.

185 M.G.

116 M.G.

33

M.G.

2.921 M.G.

15 CATCHMENT DIRECT

735 ACRES

NIL

260 ACRES

585 ACRES

100 ACRES

425 ACRES

321 ACRES

93 ACRES

405 ACRES

90 ACRES

73 ACRES

96 ACRES

3000 ACRES

16

AREA

INDIRECT

440 ACRES

OVERFLOW FROM TYTAM

160 ACRES

181 ACRES (PLUS O.F“. FROM UPPER RES.)

940 ACRES

28 ACRES

117 ACRES

NIL

(PLUS OF

(PLUS OF.

776 ACRES (PLUS OF.

FRÒM WIN. CHONG)

FROM UPPER RES)

FROM SHEKLIPUI)

OVERFLOW FROM

KOWLOON RES.

66 ACRES

FROM SHING MUN CONDUIT

3.000 ACRES

ACRES OF CATCHMENT

17

2.02

7.2

6.44

4.97

2.18

2.09

PER M.G. STORAGE

18

ESTIMATED YIELD

COMBINED

YIELD

8.25

M.G.D.

0.5 M.G.D.

COMBINED YIELD 2-12 M.G.D.

COMBINED YIELD

3.16

M. G. D.

CAPACITY OF

20

SERVICE RESERVOIRS

FROM TYTAM

19 | CAPACITY OF FILTERS

SLOW SAND FILTERS: R.G FILTERS:

1575 M.G.D

17.956 M G. (INCLUDING PROVISION FOR IO M.GD. FROM KOWLOON)

CONSIDERABLE TAKES OVERFLOW LEAKAGE

CONSIDERABLE

AN ADDITIONAL IS M.G.D. CAN BE PASSED TO ELLIOT FILTERS

SLOW SAND FILTERS: FAST GRAVITY FILTERS:

6-941 M.G. }{ INCLUDING

12 TOTAL 52 M.G.D.

SLOW SAND FILTERS

3.2. M. G. D.

DIRECT CATCHMENT 9-251 INDIRECT

4-25

R.G. FILTERS 20 M.G.D.

|1-35 MGD

PROVISION FOR 1.5 M.G.D. FROM ALBANY )

13-385 M.G.

CILL LOWERED

G IN 1935

TOO SMALL ALL LEAKAGE UNDER OVERFLOW LOST

AND AROUND

CONVERTED

PAPER WORKS

DAM

CURVED DAM WITH 240 FT.

RADIUS

FROM KOWLOON

AND

KOWLOON

RESERVOIR

(10 M.G.D. IS PASSED DIRECT TO HONG KONG

TAKES OVERFLOW OVERFLOWS TO

OVERFLOW TO

BYEWASH

21

REMARKS

DAM RAISED

9FT IN 1897

OVERFLOW LOWERED,

2-9 IN 1936

N.E. END OF

DAM

CERTAIN AMOUNT

OF OVERFLOW

CAN BE TAKEN

INTO BOWEN RD. CONDUIT OR ABERDEEN CATCHWATER

ORIGINAL DAN 40Fİ

BUT FULL

RAISED 1FT. 1899 |GRAVITY SECTION RAISED

2FT. ON

SHEK LEI PUI

RECONTRUCTION

IN 1932

67

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