Maderra provided Project Management and multi-disciplinary Engineering services covering extensive assessments and upgrades of the Bull Arm Topsides construction site infrastructure and related systems, to ready the site for the Hebron project work. Work was completed in conjunction with four partner Engineering firms, and included the following:
Site Inspections and Condition Assessments
Completed Site inspections and prepared detailed condition assessment reports covering: main pier, quay, mooring bollards, wheelguards, and fenders; Site civil works including roads, laydowns, potable water, and sewage; building infrastructure and related systems; electrical distribution systems; mechanical systems and equipment; propane tank farm; and elevators and overhead doors.
The work included: visual inspections; arc flash studies; finite element modelling; geotechnical assessments; environmental assessments and water quality monitoring; coordination of testing services, underwater dive programs, borehole and drilling programs; preparation as built drawings; and development of maintenance plans.
Site Remediation and Upgrades
Completed Engineering, design, cost estimating, Tender packages, and procurement support for the remediation and upgrades to the Site infrastructure as required to support the project fabrication and module integration works. This included: major upgrades to the pier, quay, bollards, anchors, fenders, ladders, and wheelguards; subgrade remediation and foundations to support module movements, stools and jacking towers; replacement of a 25kV power transformer and 5kV underground radial feeders; removal of 5kV substation; relocation of a sewage pumping station; remediation and recertification of propane tanks, elevators, and overhead doors; and upgrades to buildings and building systems.
Modelling of Module Movements and Travel Paths
Completed 3-D digital terrain modelling, 3-D modelling of rock face and required rock excavation, and 3-D models depicting the Module movements and travel paths, to ensure sufficient space to move the fabricated Topsides modules around the yard.
Completed Engineering, design, Tender packages, and procurement support for: temporary distribution systems for construction, integration, and commissioning activities, including 25kV, 5kV and small power systems and equipment; and temporary process utilities for construction and commissioning activities .
Provided home office Engineering support, Site Engineering support, and Site coordination for all inspection, remediation, and upgrade works.