A Ride Through the Historic Hamilton Canal

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Connecting Colombo to Puttalam, the Hamilton Canal is a historic waterway originally initiated by the Portuguese for flood control. Later expanded by the Dutch for spice transport using “Padda Boats,” it was reconstructed in 1804 by the British official Garvin Hamilton. Today, it is a popular destination for scenic boat rides and kayaking.

The Hamilton Canal (හැමිල්ටන් ඇළ), also known as the Dutch Canal (ලංදේසි ඇළ) and Paru Æla (පාරු ඇළ) in Sinhala, connects Puttalam and Colombo and possesses a long history dating back to the colonial era.

The canal project was first initiated by the Portuguese (1505–1656), who began excavating a waterway from the Kelani Ganga River. Their primary objective was to divert floodwaters from the river and thereby protect the fertile paddy lands in the surrounding region. These paddy fields were situated within a valley bordered by sand dunes that separated them from the sea on one side and elevated ground on the other. Today, the Colombo–Negombo road runs along this higher ground (Brohier, 1980).

The Muturajawela Paddy Lands

The paddy fields extended for many kilometers along the sand dunes in the area known as Muturajawela. The name is believed to have originated from the abundant harvests of pearly white Mutu-samba or “pearl rice” that these fields produced annually (Brohier, 1982).

However, the Portuguese attempt to protect the paddy lands ultimately failed. The canal unintentionally created a passage through which saline seawater entered the agricultural lands, leading to the destruction of the paddy fields.

Expansion Under the Dutch

Despite this setback, the value of the canal as a transportation route for people and commercial goods was fully recognized by the Dutch, who were highly skilled in the construction of canal networks for transport purposes.

The Dutch expanded and improved the abandoned canal, extending it up to Negombo. Historical records from 1706 indicate that the canal had already reached Maha Oya. It is likely that within the same decade, additional waterways were cut to connect rivers, lagoons, and backwaters, thereby establishing continuous water transport from Colombo to Puttalam, a distance of approximately 193 km (120 miles), and a further 24 km (15 miles) across the Puttalam Lagoon to Kalpitiya (Brohier, 1978).

The Dutch also introduced flat-bottomed boats known as “padda boats” to Sri Lanka.

Commercial Importance of the Canal

The principal purpose of the Hamilton Canal was to facilitate the transportation of goods and passengers between Colombo and the coastal trading centers of Negombo and Puttalam. During the colonial period, these coastal towns were important trading ports.

The canal became a crucial transport route for commodities such as spices, coconuts, and various agricultural products, which were transported from inland areas to coastal ports for export.

British Reconstruction and Naming

Following the transfer of the coastal regions of Sri Lanka from the Dutch to the British, a new canal project was undertaken under the supervision of Garvin Hamilton, the Agent of Revenue and Commerce in Colombo, Ceylon (modern-day Sri Lanka).

The British constructed a new canal parallel to the older Dutch Canal, extending from the Kelani River to Negombo. Construction began in 1802 and was completed in 1804. The canal was designed to accommodate two-way boat traffic and was subsequently named the Hamilton Canal after Garvin Hamilton.

Plans for further reclamation and extension work were eventually abandoned due to the conflict between the British and the Kandyan Kingdom (Brohier, 1980).

Decline of the Canal

With the introduction and expansion of modern transportation systems such as railways and road networks, the commercial importance of the Hamilton Canal gradually declined. In addition, years of neglect and inadequate maintenance contributed significantly to the deterioration of the canal’s infrastructure.

Modern Rehabilitation and Tourism

In recent years, renewed interest has emerged in restoring the Hamilton Canal as both a recreational and tourist destination. Rehabilitation work has been carried out not only up to Negombo but also along an additional 9 km (5.6 miles) stretch reaching Maha Oya.

Today, the canal is used for recreational activities such as boat rides, kayaking, and leisurely walks along its banks. Its scenic surroundings and historical importance make it an attractive destination for both local visitors and tourists, offering insight into the colonial and maritime heritage of Sri Lanka.

Boat rides using fiberglass vessels as well as traditional Oruwa are organized by local operators at several points along the restored sections of the canal.

References

Brohier, R.L. (1978) Links Between Sri Lanka and the Netherlands: a Book of Dutch Ceylon. Colombo: Netherlands Alumni Association of Sri Lanka.
Brohier, R.L. (1980). Ancient irrigation works in Ceylon (1934). Colombo: Ministry of Mahaweli Development.
Brohier, R.L. (1982). Discovering Ceylon. 2nd ed. Colombo, Sri Lanka: Lake House Investments.

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The Best of Negombo

Map of Historic Hamilton Canal

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