Dam data table 　 Dam No.：2099 　 Koyagawa Dam (Pre) ［Yamaguchi Pref.］ 　→　Koyagawa Dam (Re) Dam Photo （Photo by: Hi Ace） 045318 Atsushi Kato 034467 Hi Ace 034469 Hi Ace 034466 Hi Ace Location (Latitude, Longitude) N 34°141' 09''，E 131°7' 06''   [Japanese Dam Finder] Purpose／Dam type FNWI／G Height／Crest length／Dam volume 41m／174.3m／85 thousand m3 Catchment area／Water surface area 84.1km2／161ha Reservoir capacity 21750 thousand m3 FY project started／completed 1940／1955 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.