Journal of Hydrogeology & Hydrologic EngineeringISSN: 2325-9647

Reach Us +1 850 754 6199
All submissions of the EM system will be redirected to Online Manuscript Submission System. Authors are requested to submit articles directly to Online Manuscript Submission System of respective journal.

Research Article, J Hydrogeol Hydrol Eng Vol: 4 Issue: 1

Measurement of the Remaining Storage and Rate of Siltation of Tagwai Impounding Reservoir, Niger State, Nigeria

Vulegbo AA1,2*, Schoeneich K2 and Alagbe SA2
1Department of Civil Engineering, Federal Polytechnic, Bida, Nigera
2Department of Geology, Ahmadu Bello University, Zaria, Nigeria
Corresponding author : Vulegbo AA
Department of Civil Engineering, Federal Polytechnic, Bida, Niger State
Tel: +2348035865305
E-mail: [email protected]
Received: July 25, 2014 Accepted: November 05, 2014 Published: November 10, 2014
Citation: Simone TM, Higgins PJ (2012) Vulegbo AA, Schoeneich K, Alagbe SA (2015) Measurement of the Remaining Storage and Rate of Siltation of Tagwai Impounding Reservoir, Niger State, Nigeria. J Hydrogeol Hydrol Eng 4:1. doi:10.4172/2325-9647.1000118

Abstract

Measurement of the Remaining Storage and Rate of Siltation of Tagwai Impounding Reservoir, Niger State, Nigeria

Water resources planning and management is a major challenge to most developing nations in their struggle to secure water. Depending on the availability of water, which is increasingly becoming a scarce resource in most developing nations, Resersvoirs are created by construction of dams across rivers to impound and capture runoff water.Sediment accumulation due to erosion of soils in the drainage basin has decreased the storage capacity of reservoirs. A field study of Tagwai reservoir was carried out in Tagwai drainage basin, Niger State, Nigeria. A total of 141 points were taken with their coordinates to outline the perimeter of the reservoir (open watersurface), while a total of 415 depth measurements from the open water surface accompanied with their corresponding coordinates were measured in a slowly moving boat with a weighted line, metric tape, and Global Positioning System (GPS); from which area and storage were calculated. The remaining storage in the year 2010 was the same as the total storage of the reservoir. This is because the dead storage has been already silted up. Remaining storage was in year 2010, 21,650,648 m3 which is 76.5 % of the original storage. Average rate at which the storage shrunk from 1978 and 2010 is 207,792 m3/year. Losses to siltation are 6,649,352 m3 during a period of 32 years, which is 0.73% per annum. The reservoir will be completely silted up in 136 years from the date of its impoundment i.e. in the year 2114, if the rate of siltation is not reduced.

Keywords: Measurement; Reservoir; Siltation; Storage; Drainage basin; Tagwai reservoir

Track Your Manuscript

Share This Page