Spean Thmor, the Khmer era bridge means Stone Bridge, it located west of Ta Keo of which and arch and several piers remain, is 200m east of Thommanon. Jayavarman VII, the last great builder of Angkor, constructed many roads with these immense stone bridges spanning watercourses, but this is the only large bridge remaining in the immediate vicinity of Angkor.
It was built on the former path of Siem Reap river between Angkor Thom and Eastern Baray and probably rebuilt after the Khmer period some time around 15th century. The 14 narrow arches are 1.10m wide.
The bridge vividly highlight how the water level has dropped over the subsequent centuries and may offer another clue to the collapse of Angkor's extensive irrigation system. Just north of Spean Thmor is a large and surprisingly elegant water wheel.
