Summary of Rogi dam
Rogi dam is multipurpose dam supplying of maintenance (securing of agriculture water, maintenance of river environment), water supply water of normal function of flood control, running water.
We started the dam body construction from 2009 and were completed in 2014.
(1) Flood control
In plan rise of a river flow rate 130 (㎥/s) of dam point, we perform 94 (㎥/s) flood control and perform reduction, prevention of flood damage of Kawauramachirogi, Amakusa-shi district.
(2) Maintenance of normal function of running water
We stably supply water from dam to the downstream river to maintain supply and river environment of agriculture water of dam shitaryuenkawa.
(3) Water supply water
As water supply water of Kawaura, Amakusa-shi area and Ushibuka area, we supply up to 4,600 (㎥/ day).
Specifications of dam
|Specifications of dam||Water system name||Rogi River||Reservoir specifications||Catchment area (㎢)||6.8|
|River name||Rogi River||Flooding area (㎢)||0.14|
|Position||Kawauracho, Amakusa-shi||Total storing water capacity (㎥)||2,290,000|
|Model||Gravity-type concrete dam||Valid storing water capacity (㎥)||2,080,000|
|The amount of bank (m)||53.0||Flood control capacity (㎥)||1,160,000|
|Mayor of bank top (m)||169.0||Irrigation capacity (㎥)||920,000|
(maintenance 320,000 of normal function of running water)
(water supply 600,000)
|Bank volume (㎥)||85,000||taisayoryo (㎥)||210,000|
(2) Figure of figure of storing water capacity curve, distribution