Flood risk screening and drainage support for construction companies
Site drainage design support, flood risk screening for proposed developments, and as-built topographic and hydraulic verification for contractors delivering water infrastructure projects.
Flood risk on a development site is cheapest to discover before the land is bought and most expensive to discover after the foundations are in. The same is true of a drainage design that fails its first significant storm. Both are screening questions that can be answered quickly and early, and both are routinely deferred until a consenting authority forces the issue.
We provide flood risk screening for proposed sites, drainage design support, and as-built hydraulic verification for contractors delivering water infrastructure. The work is scoped to answer a decision rather than to produce a comprehensive study nobody asked for.
What makes this sector different
- Site flood risk is often assessed too late in the acquisition or design process to change anything.
- Consenting authorities increasingly require modelled evidence rather than a desk-based statement.
- Drainage designed to historic rainfall intensities may not meet current requirements.
- As-built conditions frequently diverge from design, and the divergence is not always hydraulically neutral.
What we deliver
- Site flood risk screening against fluvial and pluvial sources
- Drainage design support and capacity checking against current design storms
- As-built topographic and hydraulic verification against the design intent
- Technical evidence packaged for a consenting or permitting submission
Common questions from construction companies
How quickly can you screen a site for flood risk?
A desk-based screening using available terrain and hydrological data usually takes a few days and is enough to decide whether a site needs a full flood risk assessment. That is deliberately a fast, cheap filter — running it before acquisition rather than after design is where it saves the most money.
Do you produce flood risk assessments for planning submissions?
Yes, modelled rather than desk-based where the authority requires it. Requirements vary by jurisdiction, so we confirm the specific standard your consenting authority applies before scoping, rather than delivering to a generic template that then needs reworking.