CP 10 Signing Ceremony
The Millennium Challenge Account Zambia Limited (MCA-Zambia) engaged Construções Gabriel A.S. Couto, SA to construct and rehabilitate over 2.6 kilometers of drainage in Mazyopa settlement at a cost of US$17.2 million. The signing ceremony was held on September 17 2015, at MCA-Zambia offices. The drain is being constructed to avert flooding downstream which is expected to increase as a result of the rehabilitation of the Bombay Drain. The Bombay drain is expected to have increased storm water flow downstream thereby reducing flooding in the city and affected areas.
However, the increased volume of water has the potential of increasing flooding for the residents of Mazyopa, as the Mazyopa area is located downstream. The Mazyopa drain was therefore designed in such a way that storm water will be drained into the Ngwerere River thereby safeguarding the lives and property of the community of Mazyopa.
The rehabilitation and construction of the Bombay drain stretching from the southern part of the city (Kamwala, Chilenje, Libala) through the Central Business District and ending up just after the Kasangula Road bridge at the Trash Trap will result in serious downstream flooding that would negatively affect residents of Mazyopa Compound. This is the reason for the birth of the Mazyopa drain sub-project.
Mazyopa is a natural stream into which storm water from the Bombay Drainage system discharges. It starts from the discharge point of the proposed trash trap for the Bombay, an open space with vegetation on both sides. It has an approximate length of 2,600 metres.
At a distance of about 600m from Trash Trap No. 1, the drain is joined by inflow from the Luangwa and City Airport catchments.
After meandering for 740m, there is a walled private plot with a frontage length of about 140m on the western bank. Immediately downstream of the northern boundary wall, there is a pipe bridge which is also used as a pedestrian crossing.
At about 1,130m downstream of the confluence there is an abandoned weir and consequently a waterfall downstream of the northern boundary wall.
At a distance of about 1,100m downstream of the weir, the drain is traversed by a recently constructed 27m suspension footbridge.
The last section of the drain is about 270m further downstream with few housing units, gardens, and sparsely populated by natural vegetation.
Downstream of the point where the Chipata drain enters the Ngwerere is the proposed location of Trash Trap No. 2 and the energy dissipating structure.