Kinjo Dam

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Kinjo Dam
KinjouDam Okinawa.jpg
LocationNaha, Okinawa
Coordinates26°12′44″N 127°43′03″E / 26.21222°N 127.71750°E / 26.21222; 127.71750Coordinates: 26°12′44″N 127°43′03″E / 26.21222°N 127.71750°E / 26.21222; 127.71750
Construction began1989
Opening date2000
Dam and spillways
Type of damConcrete gravity
Height19 m (62 ft)
Length120 m (394 ft)
Elevation at crest52 m (171 ft)
Dam volume14,250 m3 (18,638 cu yd)
Spillway typeService, uncontrolled overflow
Total capacity510,000 m3 (413 acre⋅ft)
Active capacity470,000 m3 (381 acre⋅ft)
Catchment area1.7 km2 (1 sq mi)
Surface area400 m2 (4,306 sq ft)[1]

The Kinjo Dam (金城ダム, Kinjō Damu) is a concrete gravity dam on the Li River in Naha, Okinawa Prefecture, Japan. It is designated as a cultural property and is located 500 m (1,640 ft) south of Shuri Castle.[2] Construction on the dam began in 1989 and it was completed in 2000.[3] Its main purpose is flood control and on average, it can control an intake of 40 m3/s (1,413 cu ft/s); releasing 23 m3/s (812 cu ft/s). The 19 m (62 ft) tall and 120 m (394 ft) long dam was constructed on fragile rock and is set on a deep concrete staircase foundation.[1]


  1. ^ a b "Dam Design" (in Japanese). Okinawa Dam. Retrieved 26 July 2011.
  2. ^ "Location and Cultural Heritage" (in Japanese). Okinawa Dam. Retrieved 26 July 2011.
  3. ^ "Kinjo Dam Overview" (in Japanese). Okinawa Dam. Retrieved 26 July 2011.