Parapet wall
A solid wall built along the top of the dam for ornament, safety, or to prevent overtopping.
Source http://www.nws.noaa.gov/om/hod/SHManual/SHMan014_glossary.htmParapet wall
A solid wall built along the top of a dam (upstream or downstream edge) used for ornamentation, for the safety of vehicles and pedestrians, or to prevent overtopping caused by wave runup.
Source Guidelines on Instrumentation on Large dams by Central Water Commission Ministry of Water Resources, River Development & Ganga Rejuvenation Government of India, June 2017, p.75Зураг