• H. H. Heng
  • W. F. Pan
  • F. L. Siaw
  • C. P. Hii


This paper presents an alternative water storage concept at lower sea-river interface vis-à-vis the conventional dam/reservoir storage scheme in the upper headwater region of a river basin. Two (2) estuary or coastal reservoir schemes are proposed to meet the future water demand of Johor Bahru and its vicinity. The low flow yields of a 98% reliability (or design 1:50-year return period) for both river schemes are also presented. A hydrological assessment is carried out to correlate the hydrometric variables, i.e. rainfall and streamflow. A long term 54-year streamflow record is adopted as input to the yield calculation. The reliable yields of 98% reliability criteria are in turn estimated based on a water balance or mass conservation. This new paradigmatic shift of reservoir storage location from headwater region to lower estuary/coastal interface can harness sufficient yield to meet the future demand of Johor Bahru and vicinity.


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How to Cite
Heng, H. H., Pan, W. F., Siaw, F. L., & Hii, C. P. (2017). COASTAL AND ESTUARY RESERVOIR: CASE STUDIES FOR JOHOR RIVER BASIN. Journal of Civil Engineering, Science and Technology, 8(1), 25-40.