Dam data table 　 Dam No.：593 　 Ohtsu Dam ［Gunma Pref.］ Dam Photo （Photo by: Hi Ace） 103151 kanayama 041405 Fumufumu 103155 kanayama 103159 kanayama Location (Latitude, Longitude) N 36°331' 05''，E 138°37' 38''   [Japanese Dam Finder] Purpose／Dam type P／G Height／Crest length／Dam volume 19.6m／73.9m／11 thousand m3 Catchment area／Water surface area 451km2／4ha Reservoir capacity 108 thousand m3 FY project started／completed 1928／1931 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.