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PROJECT SHEET : GIS COMPONENT
Environmental Impact Assessment:
GIS Support for SpringGrove Dam
- Client:
Dept Water Affairs and Forestry, Umgeni Water
- Appointment:
1999 - 2000
- Scope of Work:
To provide analytic and spatial reporting support to water
and environmental specialists performing an environmental
impact analysis for the proposed development of the SpringGrove
Dam.
- Cost of Project:
R 130 000
The SpringGrove Dam Environmental Impact
Assessment formed the major focus of the Environmental Scoping
Assessment for the SpringGrove Dam and the upgrade to the
Mooi-Mgeni Transfer Scheme. The GIS was incorporated for its
ability to analyse spatial and non-spatial data together,
providing a tool which other analytical methods disregard.
As a result it formed the integrating technology between all
project components.
 Features
of the system :
- An integrated database design was developed
using inputs from all professionals involved in the EIA.
- All required aerial photography and
other spatial information was collected and converted to
GIS format.
- Socio-economic (non-spatial) needs were
incorporated into the GIS.
- Both spatial and non-spatial requirements
were combined to develop a questionnaire for all and owners
and managers of the affected properties to 'audit' existing
features.
- Captured the surveyed information -
both spatial and non-spatial - with field verification and
specialist input where required.
- Developed applications which generated
reports analysing the collected data indicating the financial
and spatial impacts the dam is likely to experience, according
to defined criteria (by professional and key decision makers).
KEY RESULTS
All project members were included in the set-up of the system,
thereby allowing a value-added system to be developed, which
when interrogated, would take all factors into consideration.
The system can quickly and accurately produce spatial and
financial results of affected assets (individually or collectively)
according to user-defined criteria.
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