Honna Dam

Honna Dam (本名ダム, Honna damu) is a gravity dam on the Tadami River in Kaneyama, Fukushima Prefecture, Japan.[1] It was constructed between 1952 and 1954 for the purpose of hydroelectric power generation. It supplies a 78 MW power station with water.[2]

Honna Dam
Honna Dam 001.JPG
Honna Dam is located in Japan
Honna Dam
Location of Honna Dam in Japan
Official name本名ダム
Coordinates37°26′28″N 139°29′35″E / 37.44111°N 139.49306°E / 37.44111; 139.49306Coordinates: 37°26′28″N 139°29′35″E / 37.44111°N 139.49306°E / 37.44111; 139.49306
Construction began1952
Opening date1954
Owner(s)Tohoku Electric Power
Dam and spillways
ImpoundsTadami River
Height51.5 m (169 ft)
Length200 m (656 ft)
Dam volume126,000 m3 (164,802 cu yd)
Spillway type4 x roller gates
Total capacity25,769,000 m3 (20,891 acre⋅ft)
Active capacity13,472,000 m3 (10,922 acre⋅ft)
Catchment area2,142 km2 (827 sq mi)
Surface area179 km2 (69 sq mi)
Power Station
Commission dateAugust 1954
Hydraulic head34.9 m (115 ft)
Turbines3 x 26 MW Kaplan-type
Installed capacity78 MW

See alsoEdit


  1. ^ http://damnet.or.jp/cgi-bin/binranA/enAll.cgi?db4=0488
  2. ^ "Tohoku Electric Power Plant Honna" (in Japanese). Suiryoku. Retrieved 27 August 2011.