Our Services
At Flows and Roads Consulting, we deliver practical drainage and highway design solutions that keep your project moving. By combining extensive industry experience with efficient working methods, we provide a fast, reliable service at a competitive cost across Cornwall and the Southwest.
Sustainable Drainage Systems (SuDS)
Most developments require a clear and compliant strategy for managing foul and surface water. We design cost-effective, adoptable and private drainage solutions that satisfy planning requirements while supporting efficient construction and long-term performance.
Using industry-leading drainage software and up-to-date technical standards, we help you move smoothly from planning approval to delivery on site.
Our services include:
Adoptable drainage designs
Private foul and surface water drainage layouts
Greenfield runoff rate and volume calculations
BRE365 percolation testing
Liaison with planning officers and the Lead Local Flood Authority
Flood Risk Assessments (FRAs)
Flood risk is a key planning consideration for many sites. We produce clear, policy-compliant Flood Risk Assessments that identify constraints early and provide practical mitigation strategies.
Our assessments are tailored to your development and supported by robust hydraulic and hydrological analysis, helping you meet Environment Agency and local authority requirements with confidence.
Our FRA services include:
Flood Zone 2, 3a and 3b assessments
Critical Drainage Area assessments
Hydraulic modelling to support planning applications
Pre-application advice
Liaison with the Environment Agency, LLFA and planning authority
Highway Designs
We provide highway design solutions that support planning approval and technical adoption under S38 and S278 agreements.
From initial access strategies through to detailed design and approval, we work to ensure proposals are practical, policy-compliant and aligned with Highway Authority standards.
Our highway design services include:
Access and internal layout design for planning
S38 and S278 design packages
Highway Authority liaison and negotiation
Highway pavement design
Technical approval support