MacGregor canal was built between 1903 and 1904 during the colonial administration of William MacGregor, a medical doctor and Governor of the Colony of Lagos during the period of construction. The project was initiated as part of MacGregor's effort to reduce mosquitoe infestation through reclamation of swampy land in Southwest Ikoyi and Onikan,

Lagos Island Lagos Island (''Ìsàlẹ̀ Èkó'') is the principal and central local government area (LGA) in Lagos, it was the capital of Lagos State until 1957. It is part of the Lagos Division. As of the preliminary 2006 Nigerian census, the LGA had a pop ...

.. The twenty five feet wide canal was built to drain the swamp and in addition quarried to provide soil for the reclamation project. The canal cut across Ikoyi and parts of Onikan, Lagos Island, providing a border between Lagos Island and Ikoyi. To link both communities, a bridge was built over the canal from Obalende, a settlement that was part of the newly reclaim swampland. In the 1970s, parts of the canal were sand filled to build an inner ring road around Lagos Island.

References

{{coord missing, Nigeria History of Lagos Buildings and structures in Lagos Canals in Lagos