This paper represents the results of national and infrastructure project funding shortfalls study and determined implementation risks of such projects attributed to the Russian export market fluctuations, additional budget expenses in terms of the pandemic and upon the slowdown of macroeconomic indicators' growth. In order to neutralize risks of national project implementation and cover requirements in infrastructure investments the study proposes the financial instruments of Public Private Partnership (PPP) institute, including instruments for update and development of project financial support mechanism providing the sustainable development of regional economy. © The Authors, published by EDP Sciences, 2020.