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.