Geotechnical and Materials Engineer, Southern

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The Orange-Senqu River Commission (ORASECOM) is seeking consulting services to conduct a technical feasibility study and produce the preliminary design for the water conveyance system of the Lesotho to Botswana Water Transfer Scheme. The bulk water transfer scheme is intended to mobilize water in Lesotho and convey it through South Africa to Botswana, while supplying users along the route. The study will assess and integrate technical, financial, environmental, regulatory, institutional, social, and climate considerations to support financing and implementation decisions.

The assignment covers route confirmation, demand and socioeconomic assessment, topographical and cadastral surveys, geotechnical and materials investigations, climate risk assessment, hydraulic modelling and optimization, preliminary design of pipelines, pump stations, reservoirs and supporting infrastructure, cost estimation, economic analysis, and preparation of detailed-design terms of reference and a Record of Implementation Decision.

CDM Smith is seeking a Geotechnical and Materials Engineer to plan, oversee, interpret, and report the geotechnical and materials investigations for the anticipated feasibility study. The position will focus on subsurface and material conditions along the long-distance pipeline route and at major structures, including risks associated with dolomitic terrain, undermined areas, subsidence, seismicity, foundations, backfill, and construction materials.

* Professional engagement is contingent on project award and client approval.

• Review existing geological, geotechnical, hydrogeological, seismic, and materials information for the conveyance route and structures.
• Develop and oversee the feasibility-stage investigation program, including boreholes, test pits, in-situ testing, sampling, laboratory testing, and borrow-source investigations.
• Assess engineering properties of soils and rock and determine suitability for pipeline foundations, structural foundations, backfill, road or platform materials, and concrete aggregates.
• Evaluate geotechnical risks associated with dolomitic terrain, Free State Goldfields mining areas, subsidence, seismic events, river crossings, major cuttings, pump stations, and break-pressure tanks.
• Provide geotechnical parameters, foundation recommendations, stability assessments, quantities, and construction-risk inputs for preliminary design and cost estimating.
• Prepare the Geotechnical and Materials Report and coordinate findings with pipeline, structural, roads, survey, hydraulic, and cost specialists.

• Design and management of large-scale geotechnical field and laboratory investigation programs.
• Engineer…