Japanese National Committee on Large Dams. Dams in Japan 1967

67 Pages·20.247 MB·English

D A I } I SI T 1A1P
r 9 6 7
fapanese National Gommittee on
IKEHARA D,
P R E F A C E
This is the fourth issue of "Dams in Japan" published on the occasion of
the Nineth Congress of the international Commissi,cn on Large Dams. The past
issues were also each published in the year o{ the congress of the International
Commission on Large Dams.
Introduced in this issue are some of the dams completed between i964
and 1966 covering Japan as a whole. It is my hope that this booklet will provide
information of dam construction activities in our country.
The Japanese National Committee on Largo=D ams expresses its deep ap-
preciation to member organizations and other institutions who have contributed
materials which have made possible this issue.
September 1967
a 4 n / -
Ottltttwot /LL0/L[4-
6
Susumu Nagata
Chairman
Japanese National Committee
on Large Dams
I N D E X
Page
Introduction
I
Ishikari River Development project
2
Kitakami River Development Scheme
s
Kawamata Dam
B
Yagisawa Dam and Shimokubo Dam
l0
Azusa River Hydroelectric Project
13
Koshiba Dam
17
Shin-inotani Dam
19
Kamiichigawa Dam
20
Dainichigawa Dam
2g
Hida River Development project
24
Kuzuryu River Hydroelectric project
27
Ikehara and Nanairo Dams .
32
Nariwa River Development project
35
Kominono Dam
39
Chikugo River Development Scheme
4g
Appendix : Table of Dams Completed and Under construction, 1964-,66
I N T R O D U C T I O N
This issue gives the trend of dam construction during the three years of
1964 to 1966' Dam construction continues to be brisk arising from the increasingr
demand for the conservation and effective use of water resources created by
expanding economic and industrial activities and. :improvement of the living stand-
ard of the people.
Introduced in this issue are 37 dams with photographs selected to cover
entire Japan' Also included as appendix is a table of statistics of dams over 40
meters in heiqht completed during the three years and under construction at
the end of the period.
rt0 NAME OF DAM vc NAMEO F DAM
ANAYAMA TORI
2 SHIZUNAI 23 DAINICHIGAWA
3 SHIJU SHIDA ? SAIK AWA
4 Y UDA z NAGANO
5 OTSUM A TA 26 IGENJI
6 X AWAMATA I IwTAGAS
7 SHIMOKUSO TA K AYAMA
I YAGI SAWA 22 IKEHARA HOKKAIDO
9 SON O HARA I NANAI RO
HONZAWA FUTAGA WA
SHIROYAMA 5 SYO R ENJ
AMA HATA SUGESAWA
KOSHtEu 34 SHINNA RIWA
t4 SUSOBANA 35 SUGANO
IF N AGAWADO t6 O MI NONO
r5 MIDONO 3? YANASF
l7 I NEKOKI 3€ BESSHT
I SHIN- INOTANI3S MINAMIHATA
t9 TA KANE tto. I 4( SHIMOU
?c TAKANE No.2 ISURUT
2l xautrcsxr rwal
SHINANO
t5,16,t7
HON SHU
TENRYU RA/ER I
37
r l UAHARI RIVER
SH/KOKU
OCEAN
SENOAt RlvET
PACFIC
o EXtSTING
KYUS YU
O UNDER CONSTRUCTION
I
1 r
Kanayama Dam
River: Sorachi,t ributary of
Ishikart
Type: concrete hollow gravity
tn?e r.g nr t: )y. 1 meters
Crest length: 297 merers
Volume content: 229,600 cubic
meters
Purpose : flood controi. irriga-
tion, domestic water
supply and power ge-
neration
Owner : Hokkaidc Developrnent
Bureau, Agency of the
Government
Construction by: Kajima Con-
struction Co.
Year o{ completion : 1967
ISHIKARI RIVER DEVELOPMENTP RO]ECT
The Ishlkari River originates fronr the foothills of Mount Ishikari, flows
through the ishikari Plain, where is located the center of government, economy
and culture of the island of Hokkaido, and drains into the Sea of Japan. The
catchment area of the river is 14,327 square kilometers which is one fifth of the
total area of the island and the length of the main stream is 262 kilometers.
By the improvement works of reneoving sharp bends executed.i n stages in
the past approximately 65 years, the rive:: which meandered untamed through the
Ishikari Plain is now an almost straight flowing stream about IOO kilometers shorter
than its original course. With the progress in the improvement works, it was
realized that the river cannot be controll:d by levies only, and the Government
developed a basin development scheme lto regulate the river run-off. Implementa-
tion of the basin scheme was initiated by' the completion in t95Z of Katsurazawa
dam, a concrete gravity dam, 63.6 meters; hiqh and containing 5O,OOOcu bic meters
of concrete, on the tributary Ikushunbetsu River, to control 480 cubic meters per
second of the design flood discharge of B5O cubic meters per second ; and in
1967, the Kanayama dam, 59.7 meters high, was completed on the tributary Sorachi
River, to contr oI 220 cubic meters per second of the design flood discharge of
4,420 cubic meters per second. As the result of completion of the two dams
on the tributaries, the design peak flood discharge of 9,300 cubic meters per
second can be controlled to 9,000 cubic meters per second at Ohashi on the
downstream reaches of the main stream.
Under construction on another tributary of the Ishikari River is the Oyubari
dam, a concrete gravity structure 67.5 meters hiqh and containing lgl,Oo0 cubic
meters of concrete, which will store n,ater for irrigation and power generation.
Also, in the stage of siudy and planning are the Daisetsu dam on the uppermost
watershed of the main stream and the Hcheikyo dam on the tributary, Toyohira
River.
At present approximately 100,000 hectares are under irrigation and 22A,OOO
kw of hydroelectric power are developed in the Ishikari River basin.
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SHIZUNAI DAM
This dam built bv Hokkaido Electric power company Shizunai dam
is a part of the Hidaka hydroelectric development schemer
River: Menashibetsu, tributary of Shizunai
which includes the integrated development of the saru, Type : concrete gravity
Heighi: 66 meters
Niikappu and Shizunai Rivers. Crest length : 207.5 meters
The shlzunai Project which consists of the Shizunai: PVoulrupmosee :c onptoewnte r: gIeSn2e,rSaBti0o ncubic meters
dam and power plant, having an installed capacity of 23,socr Owner : Hokkaido Electric power Co.
Construction by: Maeda Construction Co.
kw and constructed on the Menashibetsu River, a tributary Year of completion : i966
of the Shizunai, is to utilize the run-off of the Shizunai River
by impounding the frow diverted from the adyoining basin
and the releases from the reservoir on the upperstream of
the Menashibetsu River.
4
I
KTTAKAMI RTVERD EVELOPMENT SCHEME
The Kttakami River orginates near the northern tip of the -main island,
flows generally in a southerly direction joining the Shizukuishi, Sarugaishi, Waka,
Izawa and many other tributaries before emptying into the Pacific Ocean. The
main stream of the river is 243 kilometers Iong and the total catchment arrerai s
10,250 sguare kilometers.
In the lower basin, river channel improvement works have been carried
out from ancient times, and the Minishy of Construction has underway a develop-
ment program of the upper basin by consiructing a series of dams and a retention
basin to control a design peak flood discharge on the main stream at Kozenji Irom
9,000 cubic meters per second to 6,300 cubic meters per second. According to
the program, peak flood discharges to be controlled by dams is 2,000 cubic meters
per second. As part of this program, tributary development was started in 1964
by conshucting the Ishibuchi rock-fill dam, 53 meters in height; in 1950, the Tase
dam, a concrete gravity structure 81.5 meters high; and in 1953, the yuda dam,
an arch strucfure 87.5 meters high. These dams are completed and in use.
Under construction is the Shijushida dam, a concrete gravity structure 45.0 meters
high, and in the stage of final desigm is the Gosho dam. These five dams will
have a combined storage capacity of approximately 310,000,000c ubic meters.
In addition to the benefits o{ flood control, the dams will be utilized to
irrigate 116,000 hectares of farmland and to generate 130,000k w of hydroelectric
power.
Yuda Dam : This dam is constructed in a steep gorge on a tributary of the
Kitakami River. The geology of the damsite is granite which is generally weak,
particularly in the river bed and right abutment where faults exiet. The dam is an
arch gravity structure in order to reduce to the minimum thrust action in the abut-
The dam has two high-pressuret ainter gates,3 .40 metereh igh and 5.13 meters
wide, capable of operating at partial opening under a desigrnh ead of 54.25 meters.
Shiiushida Dam: This dam is under construction in the upper watershed
of the Kitakami River. The geology of the damsite is diabase iull on which aie
deposits of silt and volcanic ash. The bedrock is extensivelyw eathered,p articularly
in the lefi bank.
The dam is a concrete gravity structure with rolled earth fills on both ends.
The bedrock on which the concrete gravity section is constructed was extensively
grouted and fractured rocl wdi excavated and replaced with concrete Ior the salety
of the dam against percolation and sliding.