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Project walkdown management
Walkdowns are physical and visual inspections that are normally conducted in construction projects to help identify and plan corrective actions to any outstanding issues or deficiencies.
They are critical events for ensuring a smooth transition across the different turnover phases of the project before it is finally handed over to the owner or operator for commissioning, startup and/or operations.
Although every project is different, these are some of the most common types of walkdowns:
For this type of walkdowns, the Contractor is required to initiate a completions walkdown for verification of system completeness at that time (or prior to).
The Contractor shall prepare a walkdown package and must present it to the Company at the time of making their completions walkdown notice.
Depending of the completeness criteria (i.e. percentage of construction ITRs or manhours) the walkdown invitation is accepted to proceed by the company.
“A” punchlists must be completed before the subsystem completions certificate (SCN) or before the Contractor submit their invoice whichever is the earliest.
Final walkdowns are comprehensive and multidisciplinary walkdowns conducted between Construction/Precomissioning and Comissioning teams, sometimes they might include third-party inspection agencies.
The purpose of the final walkdown is to identify any remaining deficiencies, discrepancies, risks or non-conformances that need to be addressed before the project can be formally turned over to Commissioning.
This walkdown serves as a final assessment of a system or sub-system is made based on the status of any new punch list and/or those raised during the prior construction completions walkdowns.
Any “A” and “B” punchlists at this stage should be cleared before the transfer of custody certificate is signed unless exemptions and recategorizations agreed.
PSSR walkdowns are conducted to ensure that equipment and systems are ready to be started up safely and that all necessary safety measures are in place before startup. This walkdown is typically conducted after the completion of construction, installation, and pre-commissioning activities but before the actual startup or commissioning of the facility.
During the PSSR walkdown, several parties from Engineering, Safety, Process, Commissioning, Operations and Start-up teams will inspect equipment, systems, and review procedures to ensure that any hazards associated with the startup process have been identified and properly controlled.
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