Planning requirements in Zimmerman Estate in relation to the new Gatharaini trunk sewers

ABSTRACT
The objective of the planning research project is to study the challenges and limitations of existing sanitation facilities in Zimmerman area in Nairobi County. The study also seeks to find out why development in the areas remains intense regardless of the sanitation facilities in use in this area. The study also examines the development opportunities that the Newly Constructed Gatharaini Trunk Sewers (NTGS) will bring to Zimmerman area.
The study area has exhibited uncontrolled/unguided urban growth and there lacks a regular pattern of development in this estate. This has in result resulted to construction of unapproved, informal, unplanned residential and commercial houses that have continued to proliferate at a faster rate. This has further led to pressure on the sanitation facilities in the study area. However, study area can take advantage of the newly constructed Gatharaini Trunk Sewers and utilize it to achieve prosperous urban growth that enhances efficient sanitation, properly planned houses, good land use management and improved environmental quality.
The data was achieved through field surveys, interviews, observation and review of secondary sources which were the main source of data for this study within Zimmerman precinct. Site visits in the area was also conducted to gain insights on information concerning the state of sanitation and level of provision of sanitation facilities.
The main findings from the research are that septic tanks (63%) and pit latrines are the major methods used to contain human excreta in the study area. Despite the increase in population and intense development, the area still uses these two methods among others to dispose the liquid waste. The area still disposes excreta in unimproved and unsanitary ways. This has led to waterborne diseases like malaria (43%), typhoid among others.
With the upcoming project (NGTS) the developers in the area need to take advantage of this new phenomenon to upgrade their structures to be able to cater for the current needs and for prosperity and for future generations. The realignment, designing and redevelopment of the area are timely actions for Zimmerman. Thus, the study recommends a connection to the NGTS by all the developers and lot owners in the study area through reticulation exercise. This means reorganization and redesigning of their already constructed structures and houses to take advantage of this project.

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Muchiri Lawrence Kagwi A1 Summary Project.pdf1.46 MB