Zambia - Water, Sanitation and Drainage Infrastructure

Metadata Updated: April 21, 2022

The Zambia Compact is comprised of interventions to the water, sanitation, and drainage infrastructure in the city of Lusaka. The goals of these interventions include reducing poverty through economic development, decreasing the incidence of waterborne and water-related diseases, and generating time savings for businesses and households. To evaluate the impact of the Compact interventions the following evaluation questions were developed by MCC, MCA Zambia, and CDC.

Health · What are the health benefits attributable to each type of Compact activity?

Safe Water Supply/Consumption · What are the current consumption rates of safe versus un-safe water consumption and usage? · Do Compact activities lead to an increase in safe water consumption?

Economic and Social · Do households experience an increase in income due to Compact activities? · Are households able to afford household connections, toilets, and water bills? · Were subsidy provisions adequate for sanitation connections? · What is the probability of finding work for beneficiaries? · What are the time and cost savings/use attributable to each Compact activity?

Flooding · Is there a decrease in the frequency, intensity and duration of flooding? · Is there a decrease in property damage and loss of business caused by flooding? · Is there a decrease in travel time due to reduced flooding?

Given the cause-and-effect nature of the Compact as described in the logic model, CDC recommended an impact evaluation as the most appropriate method to evaluate the effect of the interventions. The impact of interventions to extend water supply and sanitation networks to residential areas will be evaluated by comparing pre and post outcome measures in both intervention and control (counterfactual) areas. Control areas are peri-urban areas that are similar to intervention areas with respect to water and sanitation characteristics, but that are not receiving any interventions. A suitable control group for the households and businesses that will be affected by the drainage intervention in central Lusaka does not exist. Characteristics that make the Bombay Drain system unique include its mix of commercial and residential development and their propensity to flood due to their co-location along a primary drainage system (the Bombay Drain). The Bombay Drain flows through the major business and commercial districts of Lusaka and this commercial density is not present to the same degree in other drainage systems. The Bombay Drain is also distinguished by its length and the unique nature of its flooding. As a result of these characteristics, we were unable to identify a drainage system in Lusaka with characteristics similar enough to the Bombay Drain to serve as an adequate control area. Therefore, the impact of the drainage intervention on households and businesses will be estimated using pre-post comparisons with no control group.

The primary quantitative study design will be a prospective, cross-sectional intervention-control and pre-post impact evaluation of new water supply and sanitation interventions and drainage improvement interventions. We will evaluate the changes in outcome measures between baseline and post-intervention time periods within the intervention areas and compare these measures to any differences observed in the control areas during the same time period.

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Metadata Created Date November 12, 2020
Metadata Updated Date April 21, 2022

Metadata Source

Harvested from MCC Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date November 12, 2020
Metadata Updated Date April 21, 2022
Publisher Millennium Challenge Corporation
Unique Identifier Unknown
Identifier DDI-MCC-ZAM-LWSSD-CDC-2018-v01
Data Last Modified 2018-05-30
Public Access Level public
Bureau Code 184:03
Metadata Context
Schema Version
Catalog Describedby
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Harvest Source Id 23cd936b-e509-46f3-af7f-71c4ab01a514
Harvest Source Title MCC Data.json
Homepage URL
Program Code 184:000
Source Datajson Identifier True
Source Hash 5c32f3368b94dded6d3f46fd2564b26d862c7122
Source Schema Version 1.1

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