
01 · Water mains · Urban infrastructure
Renewing a trunk main in Central London
Inspect a congested corridor and compare the conditions behind four construction methods.
Requirements in practice
Understand how technical requirements, operating conditions and site constraints shape the decisions made across water and wastewater infrastructure projects.
Explore the decisions behind water-main installations, sewer diversions, pumping station upgrades and construction on constrained live sites.
Mercer Quarter is a fictional London infrastructure programme. Inspect the evidence, test an option and record the assumptions behind your recommendation. Each lesson can be opened independently.
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01 · Water mains · Urban infrastructure
Inspect a congested corridor and compare the conditions behind four construction methods.

02 · Water mains · Live connections
Review a 150 mm branch, supply continuity and the evidence needed before commissioning.

03 · Wastewater · Sewer diversions
Check a basement conflict, diversion levels and temporary flow arrangements.

04 · Wastewater · Mechanical and electrical
Keep inflow under control while comparing resilience, sequencing and whole-life costs.
Photo: Saud · CC BY-SA 4.0 · cropped

05 · Estimating · Framework rates
Interpret the preamble, separate included work and build a rate for restricted access.
Photo: Wesley Tingey · Unsplash License · cropped
Original teaching scenarios by Scope Economics. Drawings, quantities and commercial documents were created for these lessons. They are not utility records, approved designs or instructions for site work.