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ABSTRACT
Mayuku Creek serves as a navigation route for water vessels and crude oil exploration at Sapele, Delta State. However, the Creek has experienced significant changes in its water depth and sediment accumulation over time. Therefore, bathymetric surveys were carried out to estimate the volume of dredged materials to support effective environmental management and navigation.
This study employed the technique of pre and post-bathymetric surveys to acquire the depth data of the creek, and volume estimation of dredged materials. Establishing a tidal gauge assisted in this research as it was a useful tool used to monitor the tidal behavior of the creek. The results of the computed area covered by the pre-bathymetric survey included two sectional areas with the total obtained as 23,394.09m2 and the total estimated volume at80,436.97 m3. The post-bathymetric sectional area amounted to 21,485.87 m2 and the total volume at 71,538.39m3. The final depth was pre-determined at 2.3m.
Estimating the volume of dredged materials and bathymetric surveys was instrumental in installing structures at the creek and also created a safer navigable route for water vessels. The continuous study of the creek depth is recommended to create a safer navigation route and mitigate waterway accidents.
