A requirements analysis of construction norms of Russia in the field of storm sewer system calculation is presented in this paper. The analysis was done by comparing the results obtained from the calculations of the two storm collectors. The calculations were performed in accordance with the requirements of Russian Building Norms and Regulations SNIP 2.04.03-85 and its updated version – Russian Set of Rules SP 32.13330.2012. An appreciable continuity of the basic calculation formulas and values was noted. The increase in the value of storm water design flow in the case of the calculation in accordance with Russian Set of Rules SP 32.13330.2012 was amounted to about 79%. The increase in the price of several sections of storm sewer system project was amounted to about 15%.