Dam data table 　 Dam No.：547 　 Ryujin Dam ［Ibaraki Pref.］ Dam Photo （Photo by: Rui Abe） 075925 Dai 075926 Dai 075927 Dai 022210 Narikatsu Location (Latitude, Longitude) N 36°411' 03''，E 140°28' 02''   [Japanese Dam Finder] Purpose／Dam type FNWI／G Height／Crest length／Dam volume 45m／90m／47 thousand m3 Catchment area／Water surface area 13.5km2／21ha Reservoir capacity 3000 thousand m3 FY project started／completed 1972／1978 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.