Reservoir Cleaning and Dam Inspection for the District of Port Edward
August 2, 2016
Marine Infrastructure Inspected and Repaired at the Prince Rupert Grain Terminal
January 3, 2017
Prince Rupert Grain's Advantage
Established in 1985, Prince Rupert Grain Ltd. loads vessels sailing for Asia and the middle east with wheat, barley, canola and associated byproducts. It's strategic location is closer to Asian markets by 36 hours and the terminal boasts an annual throughput capacity of 7 million tonnes.
Competitive Access Demands Quality Infrastructure
As Canadian agricultural production and global demand for agri-products continues to rise, Prince Rupert Grain has made infrastructure investment and modernization a priority to remain competitive, support trade and promote growth in communities across Canada.
In November 2016, Prince Rupert Grain leveraged the expertise and local knowledge of Valard Dive Services (VDS) to inspect and repair both the terminal's cathodic protection (CP) and sewage outfall systems.
CP System 101
The terminal's cathodic protection or CP system protects critical underwater infrastructure from corrosion and premature failure by connecting the metal to be protected to a more easily corroded "sacrificial metal" that acts as the anode. In this case, the anodes were 20 hanging tubes of metal conglomerate, each approx. 1 meter in length.
Underwater Inspections & Reports
In order to extend the system's service life, VDS made a series of dives to inspect the general
condition of the anodes, brackets and cables and measure any depletion in relation to the original blueprints. They also inspected the sewage outfall system by swimming the entire length of the 200 meter pipe from the plant along the ocean bed.
The dive team discovered that the CP system and the protective cover of the outfall system were both in need of repair and provided Prince Rupert Grain with a detailed report including measurements, repair recommendations and a copy of the high definition underwater video inspections.
Infrastructure Maintenance & Repairs
As Prince Rupert Grain is committed to maintaining and improving their infrastructure assets, the dive team was again mobilized to repair the systems. Over 100 sandbags were installed to protect the outfall pipe from damage.
Certain anodes, brackets, conduits and cables were replaced on the CP and a ton of marine growth removed from the piles. The team also re-connected the electrical and spliced it back into the main system. Amidst high tides, unstable weather and a rocking boat this part of the job proved to be a challenge but one that was met with positivity, experience and momentum.
Safety. Quality. Productivity.
Valard Dive Services has the equipment and expertise to monitor, service and assist in the ongoing development of your organization's infrastructure assets. Get in touch to discuss how we can help you with your projects.