Journal of Food, Agriculture and Environment

Environmental aspects of dredging intra-coastal navigation channels in muddy coastlines: The case of Awoye, Ondo State, Nigeria

Author(s):

Steven Odi-Owei ^1*, Itolima Ologhadien ²

Recieved Date: 2008-12-02, Accepted Date: 2009-04-19

Abstract:

A case study of Environmental Impact Assessment (EIA) of canalisation in muddy coastlines is presented. Methods and materials of assessment include: field work, laboratory analyses, hydraulic calculations, Environmental Management System Technique (ISO 14001) and professional judgement. Results show that physico-chemical parameters were well within the range specified for Nigerian Inland Waters except for arsenic and faecal coliforms, while dredge cut very close to the coastline would possibly induce sea break-through inlet. Also, beneficial uses of dredged materials for human settlement are anticipated. The results derived from the study were included in the Environmental Impact Statement (EIS), which provided evidence for public hearing involving stakeholders. The evidence in the EIA report endorses the need for the project, but rejects the decision to completely dam the Awoye sea break-through coastal inlet. Authority to commence construction has been granted.

Keywords:

Biodiversity, muddy coastline, environmental, sea break-through inlet, navigation, canalisation, dredging, waves, beneficial use, mangrove forest

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Journal: Journal of Food, Agriculture and Environment
Year: 2009
Volume: 7
Issue: 2
Category: Environment
Pages: 764-768

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