Rivers & Watercourses

We use advanced modelling software to analyse river channels and structures such as bridges, weirs and culverts to deliver site‑specific flood predictions. Our models provide greater accuracy than generalised maps, supporting detailed hydraulic and flood risk analysis.

Waterco Datrys

Why Waterways matter

Waterways are vital to the natural environment and form the focus of leisure, heritage and recreational schemes, where water quality and safety are essential.

Our engineers and environmental specialists provide expert analysis and designs for waterway improvements, from initial scoping to detailed design, ensuring full compliance with legislative and regulatory requirements.

Comprehensive Expertise

From scoping and feasibility to detailed design, we deliver tailored solutions that meet legislative and regulatory requirements.

Creative, Sympathetic Design

Our team develops innovative ideas that enhance waterway use while respecting heritage and environmental value.

Specialist Support

Where required, we can draw on legal and expert witness input from our consultant panel to strengthen projects.

Safety & Functionality

Health and safety is considered from the outset, ensuring solutions are cost‑effective, practical and safe for both operatives and the public.

Waterco Datrys

Support for Waterway Scheme

We provide comprehensive support for waterway improvement schemes, including access to qualified consultants for legal input or expert witness testimony when required. Once a concept is established, we offer civil engineering expertise to deliver cost-effective, functional solutions, whether through design for tender or design-and-build.

From the outset, we prioritise health and safety, ensuring all risks are mitigated, solutions are safe to construct and operate and public exposure to risk is minimised.

Collaborative Projects

We work closely with contractors and partners to deliver successful schemes.

Ecological Benefits

Our projects improve fish migration and biodiversity across waterways.

Proven Expertise

We have partnered with major organisations, including Balfour Beatty, on river restoration to open up 34km (21 miles) of the River Witham in Lincolnshire.

National impact

We contribute to initiatives opening thousands of kilometres of rivers for ecological improvement.

Our Work

Case Studies

Rivers & Watercourses Team

Frequently Asked Questions

What is a Flood Risk Assessment (FRA)?

A Flood Risk Assessment checks if a site is suitable for development by evaluating its risk of flooding. Requirements vary by region, but usually depend on the site’s location, size, and type of development. In England and Scotland, it’s called a Flood Risk Assessment; in Wales, it’s a Flood Consequence Assessment.

Do I need a Flood Risk Assessment?

A Flood Risk Assessment is typically required when any of the following applies:

1. The site is over 1ha.

2. Can be classed as a major development.

3. Located in Flood Zone 2 or 3.

4. Drainage area is classed as critical.

Do I need a Drainage Strategy?

A Drainage Strategy (SuDS report) is needed if your site is over 1ha, a major development (10+ units), in Flood Zone 2 or 3, in a critical drainage area, or if building a new structure.

Local planning authorities may request one to ensure your project complies with regulations and avoids future issues. Checking early helps prevent delays, and our team can guide you through the process.

We have already carried out an FRA but are now being asked to provide further information? E.g. modelling

In certain areas the LLFA, EA, SEPA or NRW may not hold sufficient information for your site to inform their decision on flood risk, flood sources and flood hazards. We can support your Flood Risk Assessment in-house with hydrology assessments and detailed hydraulic modelling.

What is involved with hydraulic modelling?

Hydraulic modelling simulates how water behaves under changing conditions to assess flood risks. Using software such as MIKE FLOOD, Flood Modeller Pro, TUFLOW, and HEC-RAS, we predict flood depths, velocities, inundation rates, and hazard ratings. These insights inform UK flood maps and help clients develop effective flood management strategies.