Work
Work
Eleven projects, from a village floodplain to a national assessment: what I did on each, the skills it built, and how they apply internationally.
All projects
Eleven projects, filtered by skill
Three technical studies have full case pages. The other eight each have a page with the context, my part, the methods, the outcome and how the work applies internationally. Values are my estimates, marked “est.”.
Sutton, London · 2023–25
SuDS in Sutton’s Schools
A council-led programme bringing sustainable drainage and nature-based features onto Sutton’s school grounds, to reduce surface-water flooding and support outdoor climate learning. My part was the Environment Agency’s partnership role: fortnightly progress meetings and checks with the council.
est. >US$2m
Chessington, London · 2023–25
Flood storage basin, Sir Francis Barker Recreation Ground, Chessington
A park-based basin that fills only in storms and protects homes downstream. It is designed for a 1-in-100-year rainfall event (a 1% chance in any year) plus 40% for climate change.
est. US$1.7m
Worcester Park, London · 2023–25
Worcester Park nature-based flood alleviation scheme
A wetland and storage basins at the source of the Beverley Brook. The scheme reduces surface-water flood risk to around 200 homes after the July 2021 floods.
est. US$1.5m
London · 2023–25
Pumping station refurbishment for eel compliance (three stations)
Support project manager on an Environment Agency refurbishment that brings three flood-risk pumping stations into line with the Eels (England and Wales) Regulations 2009.
est. US$1.5m
Stafford · 2020–23
Stafford Common: urban flood hydrology for the Sandyford Brook
Hydrological analysis of extreme river flows under climate change for a heavily urbanised, multi-watercourse catchment in Stafford.
est. US$40k (modelling), within a project of more than US$500k
South London · 2023–25
Flood map models: Beverley Brook and a second river model
Delivery support for two Environment Agency river flood models that update the Flood Map for Planning and regional flood awareness.
est. US$120k (Beverley Brook) and est. US$100k (second model)
South-east London · 2023–25
Flood Warning Duty Officer, south-east London
Ten weeks on the Environment Agency’s incident rota. I turned forecasts and overnight river-level alerts into flood alerts and warnings, and kept police and ambulance services involved.
West Midlands and south London · 2020–25
Flood risk permits, planning advice and the Water Framework Directive
Flood risk activity permits in the West Midlands (2020–23) and statutory planning advice in south London (2023–25): decisions that stop new works and buildings adding to flood risk.
Staffordshire · 2020–25
Hamstall Ridware: keeping a village dry below a reservoir
Design-flood hydrology below a reservoir, a linked 1D–2D river and floodplain model built jointly with an Environment Agency colleague, and my own appraisal of the options. The delivered measure was a bund built by the farmers.
est. US$100k (modelling)
Ghana · 2025–26
Ghana flood risk: where to act first
A national screening of all 260 districts: where modelled damage and exposed people concentrate, and which priorities hold when the assumptions change. Presented for discussion with the World Bank.
est. US$90k (US$155k with the coastal work)
Ghana · 2026
How high can the sea reach on Ghana’s coast?
How high the sea can reach along Ghana’s whole coast, built from hourly tide, storm surge and waves, and where that water could spread today, with 2050 sea level and under a +0.5 m stress test.
est. US$65k
Values are estimates: scheme values as delivered, modelling values as the cost of the work if contracted externally, and the Ghana values benchmarked against comparable Environment Agency products.
Skills × projects
Where each skill was built
Choose a skill to filter the projects above and see why it matters to ADB, World Bank and UN work. Larger dots mark a project’s main skills.
| Skill | SuDS in Sutton’s Schools | Chessington basin | Worcester Park | Pumping stations | Stafford Common | Flood map models | Flood warning duty | Planning and permits | Hamstall Ridware | Ghana flood risk | Ghana coast |
|---|---|---|---|---|---|---|---|---|---|---|---|
Choose a skill
Select a skill on the left of the table to see its definition, where I used it and how it applies to development-partner work. Escape clears the selection.
Service lines
How I can support you
Four kinds of support for short-term and framework assignments, home-based or in-country. Each is aligned with the frameworks that terms of reference use.
National and basin flood risk assessment
Hazard, exposure and vulnerability at national or basin scale, with the uncertainty made explicit, so priorities hold up when the assumptions change.
- A district or sub-basin risk ranking tested for robustness across model combinations (Monte Carlo, Latin hypercube)
- Loss–exceedance curves, expected annual damage and people exposed by return period
- Validation against observed floods: satellite extents and gauges
- Decision-support views for ministries and task teams (prototype dashboards)
Evidence: Ghana flood risk, Ghana coast.
Hydrology and 1D–2D hydraulic modelling
Design-flood hydrology and linked 1D–2D or full 2D hydrodynamic models (Flood Modeller, TUFLOW), verified against observed flooding and handed over with documentation.
- Design flows with climate allowances and uncertainty bounds, reconciled across methods
- Full 2D models at 10–30 m for basin domains, and finer linked 1D–2D models for towns
- Model scoping, survey specification, procurement and quality assurance
- Flood maps for planning and for testing options
Evidence: Hamstall Ridware. The hydrology was entirely my work; I built the 1D–2D model jointly with an Environment Agency modelling colleague.
Impact-based forecasting and risk analysis
Moving forecasts from “how much rain” to “who will be affected”. I offer return-period and exceedance-probability analysis, frequency–severity curves, checks against past events (hindcasts) and trigger thresholds for anticipatory action, developed with national agencies so that they own the tools.
- Return periods for impact-based forecasting risk-matrix categories, with a methods report
- Frequency–severity (loss–exceedance) curves from damage and affected-population data
- Hindcasts of historical events to validate hazard maps and impact datasets
- Quality assessment of impact datasets: completeness, gaps and fitness for triggers
Evidence: flood frequency analysis at Hamstall; coastal return levels with bootstrap intervals and the national loss–exceedance curve for Ghana; the White Volta 2020 satellite check (mean CSI 0.58); Flood Warning Duty Officer, Environment Agency.
Investment appraisal, delivery and partnership funding
Option appraisal and cost–benefit analysis, business cases, and the delivery discipline that gets schemes funded and built: budgets, procurement, delay analysis and partner funding.
- Option appraisal and cost–benefit analysis, with damages, whole-life costs and climate allowances
- Business-case inputs and results frameworks with baselines and targets
- Funding packages: national grant, local contributions and partner co-financing
- Programme tracking: budgets, procurement, delay analysis and site assurance
Evidence: the Hamstall options appraisal (earth bund, benefit–cost ratio ≈4.6 on a consistent standard basis); partnership-funded schemes on the Experience page.