Angammedilla Gal Amuna (stone weir) also known as Rajabemma creates one of the main feeders to Parakrama Samudraya. This weir is credited to king Parakramabahu (1153-1186) who had tapped the water of Amban Ganga (river) to his Parakrama Samudraya Reservoir.
The weir has been built on a rock bed which the river flows over. A large channel has been cut across the rock to provide stability and stength to the massive foundation rock cubes. Large holes cut in to the rock slab inside the channel indicates stone pillars which would have been used to strengthen the weir.
Although this weir has now disappeared, the protective wall along the right bank at the weir buit with massive blocks of granite still can be seen rising upto about 10 feet.
The diverted water was carried to the Parakrama Samudraya over a 8 km long canal called Akasa Ganga.
Right before this weir a large canal joins the river. The canal flows under the thick forest vegetation and the water is quite cold. Amban Ganga on the other hand flows over a rocky area void of any trees and brings a steam of hot water and one can feel the hot and cold streams within meters in the river.
The ancient weir at Angammedilla lies on the edge but inside the Angammedilla National Park. The areas where the two streams joined was accessible to general public and was a bathing and a camping ground. The vehicles were able to reach the river bed itself. But with the popularity of the location and due to treasure hunting activities, access is now restricted and controlled under Angammedilla National Park authorities.
- Ancient Irrigation Systems of Sri Lanka
- Ancient Heritage Sites of Sri Lanka
- Other Places of Interest Within 25 kilometers
Map of Angammedilla Gal Amuna (Rajabemma) at Polonnaruwa
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Travel Directions to Angammedilla Gal Amuna (Rajabemma) at Polonnaruwa
Route from to Polonnaruwa town to Angammedilla Gal Amuna (Rajabemma)
|Through : Parakrama Samudraya Bund|
Distance : 20 km
Travel time : 30 minutes
Driving directions : see on google map