November 2011: Due to lava flooding from Mount Merapi through Kali Putih River in Gempol, Magelang, the main road connecting Magelang and Yogyakarta has several times closed. An estimated Rp.64 billion ($7.3 million) project to build bridge over the river, a 2.3 kilometer-long stream dredge and land acquisition is being built by government.