Innovative technologies of geoinformation support for hydraulic structures Sergey Lukyanov, Alexander Averkiev, Alexander Rybalko, Yuri Tatarenko, Natalia Frolova and Oleg Shevchuk E3S Web Conf., 110 (2019) 01024 Published online: 09 August 2019 DOI: 10.1051/e3sconf/201911001024