Tainaigawa Dam (胎内川ダム) is a dam in Tainai, Niigata, Japan, completed in 1976.^[1] It is a gravity-type concrete dam aiming for flood control and unspecified water intake. It is 93 meters in height.

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Quick Facts Location, Coordinates ...

Tainaigawa Dam
Location	Tainai, Niigata, Japan
Coordinates	37°57′38″N 139°32′12″E
Construction began	1967
Opening date	1976
Dam and spillways
Type of dam	concrete gravity dam
Impounds	Tainai River
Height	93.0 meters
Length	215.0 meters
Dam volume	17,100,000 M3
Reservoir
Catchment area	72.2 km2
Surface area	68 ha
Power Station
Annual generation	2000 KW

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The small and medium river refurbishment project was started in 1949 on the Tessouchi River flowing through Wessai City. As a result, levees capable of withstanding a flood of 700 cubic meters per second. However, the levees were broke due to flood damage in July, 1966. As a result, dam construction began.