Civil Engineering
Tetra Tech provides expert-led civil engineering services from feasibility to construction and operation, delivering resilient and sustainable infrastructure solutions for public and private sector clients across the UK and Europe.
Our civil engineering teams deliver innovative solutions that accommodate new development and address the challenges of ageing infrastructure. We offer a comprehensive civil engineering service, supporting clients from feasibility through to construction. Our engineers bring deep technical expertise and commercial awareness to deliver designs that are safe, sustainable, and cost-effective.
With a proven track record in delivering major projects, across a range of sectors, including transport, energy, residential, commercial, and industrial development, we create resilient infrastructure that works in harmony with and is built to withstand environmental pressures.
We integrate digital design approaches, sustainability, environmental, and constructability principles to drive a sustainable future.
Our clients for major infrastructure projects include public authorities, design and build contractors, public–private partnership (PPP) operators, and commercial developers.
Civil Engineering Design and Development
Tetra Tech delivers multidisciplinary civil engineering projects from concept and feasibility to planning, consents, design, construction, handover, and maintenance. We deliver coordinated civil engineering designs for all aspects of site infrastructure, ensuring alignment with client needs, project phasing, and cost parameters.
- Highway and road new builds and upgrades
- Industrial pavement design, assessment, and rehabilitation
- Sewerage networks including treatment plants
- Surface water networks and management systems
- Sustainable drainage systems (SuDS) and blue/green infrastructure
- Flood defence, alleviation, and management design
- Road and rail bridge engineering
- Civil and defence airports infrastructure
- Railways infrastructure, routes, and systems
- Ports and harbours
- Tunnels and tunnel infrastructure
- Energy generation and resource management infrastructure
- Power and energy routes, landfalls and civil engineering for offshore and on shore facilities
- Hydrogen fuelling and battery electric vehicle (BEV) charging infrastructure
- Bus infrastructure including dedicated bus corridors, park and ride, depots, stops, and interchanges
- Active travel, greenways, and public realm street improvement
- Geotechnical and contaminated land engineering
Analysis and Modelling
Our projects are modelled using the latest digital design technologies, including digital twins and BIM. Our specialists apply advanced digital analysis and modelling integrated across feasibility, planning, and design stages.
- Geotechnics (contaminated land, soft and hard ground, slopes, settlements, and constructability)
- Volumetric earthworks modelling and analysis
- Drainage, SuDS, and watercourse network analysis and modelling
- Bridge construction and design analysis
- Pavements with whole and residual life model analysis
- 3D modelling and BIM-ready outputs for streamlined project delivery
Due Diligence and Advisory
Tetra Tech provides end-to-end project appraisal and advisory services—combining investment and viability advice, technical due diligence, and planning and consenting expertise (Development consent orders (DCOs), railway/airport/tunnel approvals) to de risk major infrastructure programs and accelerate approvals. We integrate regulatory navigation with delivery planning to align funding, design, consenting and construction outcomes.
- Project management, procurement, and cost consultancy
- Contract administration with new engineering contract (NEC), International Federation of Consulting Engineers (FIDIC), and Irish public works contracts expertise
- Construction supervision for quality, safety, and regulatory compliance
- Funder/owner technical advisory and independent certification services
- Expert opinion for public inquiries, arbitration, and court cases
- Statutory compliance reviews and BREEAM Infrastructure / CEEQUAL assessments
- Cost–benefit modelling supporting business cases and funding approvals
- Environmental modelling, including noise, ecological and biodiversity surveys, plus topographic, geotechnics and utility surveys
- Sustainability modelling with a focus on whole life zero carbon
