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BC Hydro Vaults Structural assessment
Vancouver, BC

Structural assessment and report of the underground man vaults

Client: BC Hydro

BC Hydro has retained MidSea to assess the structural integrity of many vaults (manholes) that are located through out the Lower Mainland. MidSea has inspected and structurally assessed the vaults and have provided recommendation and mitigation plans accordingly. MidSea developed a series of NDT testing and inspection plan, which helped the inspection goes as fast as possible because of traffic permits and other limitations. A decision matrix was developed and used for each vault and worked as a ranking mechanism for the vaults. Repair design and cost estimation of all the vaults were also presented to the client. Some of the vaults have been assessed for small repairs, and some needed to be replaced.

The challenges in this project: developing an optimized plan for inspection to save time and get the most done in the time limit, Developing a comprehensive assessment matrix for the manholes to be able to compare and categorize the manholes.

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