They are fed by street gutters on most motorways, freeways and other busy roads, as well as towns in areas which experience heavy rainfall, flooding and coastal towns which experience regular storms. Many storm drainage systems are designed to drain the storm water, untreated, into rivers or streams.Some storm drains lead to a mixing of stormwater (rainwater) with sewage, either intentionally-in the case of combined sewers-or unintentionally.hey are fed by street gutters on most motorways, freeways and other busy roads, as well as towns in areas which experience heavy rainfall, flooding and coastal towns which experience regular storms. Many storm drainage systems are designed to drain the storm water, untreated, into rivers or streams.
Rugby union sevens is sanctioned by the International Rugby Board (IRB), and is played under substantially the same rules and on a field of the same dimensions as the 15-player game. While a normal rugby union match lasts upwards of 80 minutes, a normal rugby sevens match lasts in the vicinity of 14 minutes (allowing for injury time and so forth). Competition finals last somewhat more than 20 minutes; each half in a competition final is 10 minutes instead of the normal 7 minutes.
This article deals with rugby sevens at the 2016 Summer Olympics. For the 15-a-side version of the game at the Olympics until discontinued in 1924, see Rugby union at the Summer Olympics. Rugby sevens at the 2016 Summer Olympics is scheduled to be held in August in Rio de Janeiro. The competition will take two days. The 2016 Summer Olympics marks the debut for rugby sevens at the Summer Olympics, though rugby union was last played at the 1924 Summer Olympics.