Dam data table 　 Dam No.：923 　 Io Dam ［Ishikawa Pref.］ Dam Photo （Photo by: Hi Ace） 211426 Hajime Tanaka 027870 Hi Ace 245110 211422 Hajime Tanaka Location (Latitude, Longitude) N 36°331' 40''，E 136°46' 42''   [Japanese Dam Finder] Purpose／Dam type FA／R Height／Crest length／Dam volume 58.8m／208.2m／593 thousand m3 Catchment area／Water surface area 9.7km2／27ha Reservoir capacity 3188 thousand m3 FY project started／completed 1977／2001 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.