unsuccessful attempt in 1902 to introduce boats on the river. Early in its history, Bucharest had few bridges over the Dâmbovița, as the right bank was only sparsely populated. The estates of some boyars used to extend on both banks of the river and they had footbridges. Currently, there are sixteen bridges over Dâmbovița River in central Bucharest. Glina Wastewater Station The Dâmbovița was polluted before the opening in 2011 of the Glina Wastewater Station, the biggest ecological project in Romania, which treats the sewage water that pours into the channel which is built below the river floor. Before entering Bucharest, the river's water is already treated by the company "Compania de Apă Târgoviște". After exiting Bucharest, the Dâmbovița water were polluted, due to the hundreds of millions of cubic meters of raw sewage that were dumped every year directly into the channel below the river, but now the quality of water is much improved. In Bucharest, the river is vertically divided into 2 separated parts. In the lower part, under the Dâmbovița river floor, there is a channel which contains the sewage from the city. The two flows join into a single flow when exiting Bucharest. There are river plants and fish that live in the upper side of the river and sometimes one can even see some fishermen on the shores. The quality of the water was very much improved as of October 10, 2011 with the opening of Glina Wastewater Station, which is the first sewage treatment plant of Bucharest, with a capacity of , while a second one, which will clean all the water (with a capacity of 12 m3/s) should be finalized by 2015. Tributaries The following rivers are tributaries to the river Dâmbovița (from source to mouth): Left: Valea Vladului, Berevoiu, Luțele Mari, Luțele Mici, Valea lui Aron (Comisu), Valea Comisului, Pârâul Nemțoaicelor, Răchita, Valea lui Stanciu, Valea Turcilor, Tămașul, Valea Dragoslăvenilor, Valea lui Ivan, Valea Largă, Valea Seacă, Valea Speriatei, Valea Gruiului, Berila, Dâmbovicioara, Valea Orățiilor, Valea Cheii, Ghimbav, Valea Luncii, Valea Caselor, Hotarul, Olăneasca, Valea Runcului, Valea Jocii, Valea Bădenilor, Valea Grecului, Valea lui Coman, Valea Chiliilor, Valea Pleșei, Valea Măgurii, Valea Vlazilor, Valea Ulmului, Valea Largă, Râul Alb, Gârlița Satului, Ilfov, Bâldana, Colentina, Pasărea Right: Colții lui Andrei, Izvorul Foișorului, Valea Barbului, Izvorul Hotarului, Pârâul Larg, Valea lui Aron (Dracsin), Bălțatul, Dracsin, Cascue, Pârâul Căciulelor, Valea Șaului, Clăbucet, Oncioaia, Valea Arșiței,