The city of Sullana is located on the banks of the Chira River, near the northwest coast of Peru, and is the capital of the district and province of the same name, in the department of Piura.<\/p>\n
The urban area is made up of three districts. Two districts, Sullana and Bellavista, are completely absorbed within the conurbation, and one, Marcavelica, only partially. In terms of climate, summers are hot, muggy and cloudy and winters are dry, windy and mostly clear. However, heavy rainfall occasionally causes flooding due to a lack of urban drainage system capacity.<\/p>\n
The Peruvian government has undertaken the necessary actions to protect the districts of Sullana and Bellavista from flooding through the Authority for Reconstruction with Changes (ARCC), responsible for leading and implementing the Reconstruction Plan for all the physical infrastructure damaged and destroyed by the El Ni\u00f1o weather phenomenon. TYPSA was engaged by Benito Roggio e Hijos, S.A., the company managing the project, to provide consulting services for the design of the Sullana Integral Stormwater Drainage Project in the districts of Sullana and Bellavista.<\/p>\n
Flooding is caused by the overflowing of four main streams: Cieneguillo, Bellavista, Cola de Alacr\u00e1n and El Boquer\u00f3n de N\u00fa\u00f1ez. The aim of the project is to protect an area of 828 ha from flooding by improving and expanding the existing drainage system. The drainage system design involves the repair, adaptation, upgrade and improvement of drains, channels, sub-collectors, catchments, discharges and retaining structures for flood control. A population of almost 300,000 will benefit from these actions.<\/p>\n
A technical solution known as a \u2018Profile\u2019 has been prepared at the level of conceptual design, proposing both structural and non-structural measures to meet the needs. TYPSA\u2019s consulting services include validating this solution and proposing other possible alternatives, ruling out those that are not viable after a multi-criteria analysis, and developing the chosen solution at detailed design level.<\/p>\n
The structural measures to be addressed include the following:<\/p>\n
At the same time, a series of non-structural measures have also been proposed, aimed at making better use of the structures once they are completed. These measures include drainage system operation and maintenance plans, public awareness plans, solid waste collection system improvements and integration with the structural development of green and leisure areas, thereby enhancing their maintenance.<\/p>\n
TYPSA is delivering the following services in this project:<\/p>\n