Dam data table 　 Dam No.：776 　 Hayadegawa Dam ［Niigata Pref.］ Dam Photo （Photo by: s_wind） 138855 s_wind 114704 marc no hito 104283 Dai 138853 s_wind Location (Latitude, Longitude) N 37°381' 33''，E 139°17' 36''   [Japanese Dam Finder] Purpose／Dam type FAP／G Height／Crest length／Dam volume 82.5m／240m／357 thousand m3 Catchment area／Water surface area 83.2km2／54ha Reservoir capacity 14900 thousand m3 FY project started／completed 1969／1979 Notes: 1. Dam purposes are abbreviated as follows: A: Agricultural irrigation   F: Flood control   I: Water supply for industry   N: Non-specified, river flow maintenance P: Hydropower   R: Recreation   S: Snow melting &removing   W: Water supply 2. Dam types are abbreviated as follows: A: Arch   B: Buttress   CSG: Trapezoidal CSG   E: Earthfill   FA: Asphalt face fill   FC: Asphalt core fill   G: Gravity GF: Gravity concrete & fill dam (compound)   HG: Hollow gravity   MA: Multi-arch   R: Rockfill 3. The fiscal year (FY) in Japan is from April 1 to March 31 of the following year. Please send your comments Copyright 2012 JAPAN DAM FOUNDATION. All rights reserved.