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Developing the Discharge Capacity of Al Husa'chi River | ||
| Engineering and Technology Journal | ||
| Article 1, Volume 27, Issue 2, 2009, Pages 395-404 PDF (419.71 K) | ||
| DOI: 10.30684/etj.27.2.17 | ||
| Authors | ||
| Muhannad J. Al- Kazwini; Ali S. Al Saady; Ala H. Numa | ||
| Abstract | ||
| Al Husa'chi River is one of the three main branches of Al Ka’hla River in Maissan governorate. Its length is 25 km. the river directly feeds Al Huwayza Marsh by overpass pipes at its end. It is also used for irrigating the nearby agricultural areas. A study for evaluating the hydraulic performance of the river has been carried out in order to develop its ability to accommodate the excess inflow required for feeding the marsh and the surrounding agricultural projects. All the necessary hydraulic measurements, needed to construct rating curves, at stations along the river course were carried out for a period of six months. A steady one dimensional hydraulic model has been prepared to simulate the flow in this river using the HEC-RAS software (Version 3.1.3). The calibration and verification processes of the model have been carried out by making use of the field measurements. The obtained maximum allowable discharge of this river for the present conditions is ranged from 20m3/sec to 35m3/sec for the water surface elevation of the marsh from 7.0m to 2.8m amsl, respectively, and the first flood section is located at 23.5km downstream of the river inlet. The required cross sections to develop the capacity of the river have been obtained considering the marsh and agricultural requirements | ||
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