Early history The first mention of the canals along the western seaboard of Sri Lanka was in the 8th century, when the
Persian geographer,
Abu Zayd al-Balkhi reported a voyage lasting weeks along the 'Gobbs of Serendib', the Arabian term for the linked lagoons along the coast. Six centuries later the
King of Kotte,
Veera Parakramabahu VIII (1477–1496), had a network of canals constructed connecting outlying villages with Colombo and Negombo Lagoon so that produce such as
areca nuts,
cloves,
cardamom, pepper and
cinnamon, could be more easily transported to the kingdom’s main seaport at Negombo.
Middle history In 1613 a
Portuguese missionary, Father Manoel Barradas, describes how "Near Columbo the Fathers embarked on a canal by which they entered into the
River Calane [Kelani Ganga], and going down the river they proceeded into another canal as narrow as shady, so that the oars, although they were very short, could scarcely fulfil their office". "By this they went as far as Negumbo, which is six Chingala leagues." In the 17th century the Portuguese constructed a canal from
Hendala to
Pamunugama. The
Dutch established the centre of their colony at Colombo. They then attempted to grow
paddy rice in the surrounding marshes in
Muthurajawela, but found that—as the previous Sinhalese kings had before them—the coastal tides inundated the fields with sea water. Between 1658 and 1795, the Dutch undertook the construction of a series of structures, dams and canals using and enhancing the original system of waterways in an attempt to drain the salt water from the rice fields and to transport cinnamon in barges through to the seaport at Negombo. This system, known as the 'Dutch Canal', formed a "continuous line of waterways between ports and the remote sections of territory under the Dutch". The Hamilton Canal, as it became known, ran parallel to and west of the old Dutch Canal, closer to the sea, from the mouth of the
Kelani Ganga at Hekitta to the southern edge of the
Negombo Lagoon at Pamunugama, a distance of . Hamilton had accompanied
Frederick North (first British
Governor of Ceylon 1798–1805) to Ceylon in 1798, where he became the private secretary to
Hugh Cleghorn, Colonial Secretary of Ceylon. He subsequently became the private secretary to Governor North. In April 1799 Hamilton was appointed Acting Civil Paymaster and in 1802 the Deputy
Paymaster General. He succeeded
Joseph Greenhill as Agent of Revenue and Commerce for the District of Colombo. prior to the completion of the canal in 1804. The canal was designed to connect the original Dutch canal by a series of parallel waterways in order to drain the already damaged Muthurajawela but created the opposite effect, as the coastal tides brought increasing salinity not only from
Negombo Lagoon but also the
Kelani Ganga. Following the construction of the
railway line between Puttalam and Colombo in 1926, the water route was abandoned. The second phase of the works between the Kelani Ganga and Negombo commenced on 20 February 2013. The first section, between the Hekiththa junction and
Pinwatta was completed on 2 August 2013 at a cost of Rs. 400 million with financial assistance from the Japanese Bank for International Cooperation. ==References==