Dam data table 　 Dam No.：51 　 Iwachishi Dam ［Hokkaido Pref.］ Dam Photo （Photo by: Fukachan） 111103 Takashi Yasukochi 042529 Fukachan 111098 Takashi Yasukochi 042527 Fukachan Location (Latitude, Longitude) N 42°471' 47''，E 142°23' 48''   [Japanese Dam Finder] Purpose／Dam type P／G Height／Crest length／Dam volume 33m／92.2m／29 thousand m3 Catchment area／Water surface area 644km2／45ha Reservoir capacity 5040 thousand m3 FY project started／completed 1956／1958 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.