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Integrated hydrographic survey for proposed Jetty location along Benin River at Oghara Delta State, Nigeria

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Abstract

This study utilised two hydrographic survey methods for a proposed jetty localisation. In the first method, a hydrotrac single-beam echo sounder (SBES) provided the river depth information, while in the second method, a StarFish 990F side scan sonar (SSS) was deployed to sweep across the river bottom in order to x-ray and confirm the presence of any impediments to smooth navigation. The maximum and minimum depths obtained are 1.3 m and 14.2 m. The revelation of the existence of enough depth for berthing and movement of vessels are concentrated at the central region of the river. The volumetric analysis of the water column within the confined river section estimated with seven methods as required by the job prescription showed that the grid method has the highest volume of 1,487,113 m3, while the minimum volume of 1,487,037 m3 was obtained using Simpson’s 3/8 method. The discovered tracked wrecks were at distances of 181.7 m and 169.4 m from the head of the proposed jetty reference point. The debris discovered are located at distances 225.0 m, 224.4 m, and 82.9 m. Based on jetty’s dimensions, it implies that no obstruction could prevent its construction at the specified location. This research also revealed that every wreck locations, whose distances and positions were established and provided, poses a risk to vessel movement. Hence, the removal of these wrecks is recommended to enhance safe navigation.

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Data availability

The acquired data, other modifications, results, and analysis of this study are in the custody of the corresponding author and will be provided on reasonable request.

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Acknowledgements

The authors gratefully acknowledge Kench Survey Ltd., 35 B, Enerhen Road, Warri, Uvwie, Delta State, for the release of equipment used for data acquisition and processing.

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The authors perform different roles at various stages: data acquisition processing and article writing.

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Correspondence to Stephen Olushola Oladosu.

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The study presented here does not involve human participants or animal experiments. This article observed all relevant ethical standards.

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The authors declare that they have no competing interests.

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Responsible Editor: Broder J. Merkel

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Oladosu, S.O., Alademomi, A.S., Salami, T.J. et al. Integrated hydrographic survey for proposed Jetty location along Benin River at Oghara Delta State, Nigeria. Arab J Geosci 16, 284 (2023). https://doi.org/10.1007/s12517-023-11377-2

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  • DOI: https://doi.org/10.1007/s12517-023-11377-2

Keywords

Navigation