Completed: December 2018
Population Served: 1.2 million
Length of Pipeline Profiled: 950km
“Minerva offers solutions that are exciting and innovative in an era where technology and asset management are interlinked and many solutions often require the enduring use of consultants to run the asset decision making. Their approach seeks to develop, train and embed new thinking, working practices and methodologies into organisations, to ensure that companies own, understand and use data to make fully informed decisions.”
Minerva were commissioned by Bristol Water to undertake a Strategic Review & Scoping Study for the production of an asset management framework for Strategic Infrastructure. The process involves a structured and comprehensive review of a Bristol Water’s current trunk water asset management practices, definition of their strategic objectives, and the provision of an investment plan for achieving those objectives in a way which is effective and economical.
Upon completion of the scoping study, Minerva undertook analysis of Bristol Water’s entire pipeline inventory, totalling approximately 8,500km. This network analysis stage determined the strategic extents of individual water supply systems within the Bristol Water area, allowing the criticality to be assessed. A strategic network of 950km was identified and subsequently split into criticality cohorts using Minerva's criticality profiling methodology.
This detailed desktop stage used an extensive range of corporate and 3rd party datasets, and analysed each cohorts position within an impact timeline during catastrophic mains failure events. Based on the attributes identified, each asset was then scored using our consequence model, assigned a repair time, and categorised to align with Bristol Water’s risk appetite. The scoring was validated and refined at a sample set of these sites using Minerva's comprehensive mobile field survey form.
Account for all aspects of trunk main performance and risk
Demonstrate a strategic approach aligning investment with long term corporate objectives
Provide a clear and comprehensive framework for operation and maintenance of critical infrastructure
Utilise quantitative, empirical data to inform decision making
Fully transparent, auditable and defensible
Make best use of and integrate with existing corporate data and systems.
The process, model and outputs have been well received by OfWat during Bristol Water's ongoing PR19 business assessment and the methodology has provided considerable evidence of support in planning and investment. The final output provided a number of deliverables and benefits:
Bristol Water's PR19 Business Plan for Strategic Infrastructure
Corporate Risk Framework for Strategic Infrastructure
Strategic Documentation Maintenance Plan
3rd Party Structures Proximity Risk Register
3rd Party Prime Infrastructure Proximity Register
Identification of Environmental & Cultural Sites
Detailed Network Schematics
Resilience Assessment & Strategic System Connectivity
Dynamic Service Impact Timelines
Quantitative Repair Time Profiles
Triple Bottom Line Cost of Failure Model
Detailed Consequence Cohort Register
Wayleave Maintenance Investment Needs