The Kabul River flowed through the heart of the city, dividing the central bazaars. There are several bridges (''pul'') crossing the river, the major ones being Pul-e Shah-Do Shamshira, Pul-e Bagh-e Omomi, Pul-e Khishti, and Pul-e Mahmoud. Due to climate change, since the 21st century, the river runs dry most of the year, only filling up in the wetter winter and spring seasons.