Briman Strategic Water Reservoir
CDM Smith provided site supervision services for the construction of the first phase of the strategic reservoirs in Jeddah, which is located at the Briman Reservoir Facility of the National Water Company (NWC). CDM Smith provided key personnel including project manager, senior discipline engineers, planning and water engineers, QA/QC engineer, safety manager, discipline inspectors, and a surveyor.
The project was delivered under a design-build model with very wide scope to provide for 2.0 million cubic meters of storage at the site with a tank life of 100 years. The approach was fast-tracked and eventually accelerated to meet the challenges the city was facing throughout their distribution system, particularly during maintenance of the desalination plants and the population surges associated with pilgrimages to Makkah and Madinah. CDM Smith supervised the works contract being performed by other Contractor as a Design/Build Contract and set up the necessary organization to facilitate efficient administration of requisite activities.
We used our best efforts to maximize the likelihood of the timely implementation of the works and efficient use of financial resources. CDM Smith maintained a continuous presence as appropriate and /or required of its key personnel at the works site during the construction period and provided full supervisory services on behalf of NWC performing the functions and duties of the tasks described below.
As supervision consultant, CDM Smith provided the leadership, technical expertise and necessary resources to support NWC in successfully delivering this important project. CDM Smith performed administration and supervision of the works contract including but not limited to early construction activities, develop site offices for CDM Smith and NWC, review of project design and recommend approval contractor's submittals, provide training for knowledge transfer to designated NWC staff, and provide technical and contractual support during Defects Liability Period to monitor the successful completion of the construction contract.
CDM Smith also reviewed Atkins and Freysinnet’s design proposal in a seminar held in the UK in February 2013 and began the review of formal submittals immediately after formal appointment in early April 2013. Supervision commenced at the site in May 2013 and has continued since. Based on early successes achieving the client’s acceleration goals and milestones, the client awarded them an additional three tanks that raised the total storage capacity to 2,062,500 cubic meters.
In addition to the tanks, the scope included all internal site piping (up to 2600 millimeters in diameter), flow meters, valves, chlorination and mixing fittings, site roadways and drainage systems, a chlorination facility, administration building and complete SCADA control.
The project is Phase I of four phases to ultimately secure 6 million cubic meters of water strategic storage. The 11 reservoirs are considered the largest in the world using prestressed concrete tanks with horizontal post tension tendons and vertical post-tensioned rods using the Freyssinet technology.