SILTING CHARACTERISTICS OF DISTRIBUTARIES IN KANO RIVER PROJECT
SILTING CHARACTERISTICS OF DISTRIBUTARIES IN KANO RIVER PROJECT
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Date
1994-05
Authors
ADEOYE, ADEWALE AZEEZ
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Abstract
A study of the evaluation of the performance of the Water Distribution system in the
Kadawa sector of the Kano River Project was carried out by Jimoh, O.D. in 1991.He
came up with siltation of the distributaries as one of the problems affecting the efficient
water distribution system within the irrigation system.
This study has thus examined the silting characteristics of distributaries during the 1991/92
dry season farming in Kano River Project. The Kadawa lateral canal, distributary canal
and field channel were selected for the study.
The amount of bed load discharge (2.62 g/day) is small as compared with the total
sediment load (23.22 g/day). The bed load discharge is found to be 11% of the total
sediment load.
About 1082 m3 of sediment were scour, out of which 838m3 are deposited as at the time
of study in the selected portions, of the canal system. This has greatly changed the bed
configuration of the canals. As a result, the hydraulic efficiency of the distributary and
field channel was 56%.as against 64% obtained by Jimoh (1991) This section of the canal
is not lined. However, the hydraulic efficiency of the lined lateral canal was 91%. This
lined section is not infested with weeds.
Sediment transported through the canal system is predominantly silt and clay. This aids
rapid growth of weeds.
Recommendations on how to reduce the siltation problem and improve on the efficiency
of the canals were made.
Description
A thesis submitted to the Postgraduate School, Ahmadu Bello University Zaria in
partial fulfillment of the requirements for the degree of
M.Sc. (Water Resources and Environmental Engineering)
May, 1994
Keywords
SILTING,, CHARACTERISTICS,, DISTRIBUTARIES,, KANO RIVER PROJECT.