Ireland - Services


Flood Risk

RPS has extensive experience in the provision of flood risk assessment and management services.

Our reputation for effective solutions and efficient delivery in this area have ensured repeat business in both public and private sectors. RPS offers a range of bespoke services to meet our clients’ needs, from simple, site specific, flood risk assessments to highly complex catchment wide flood studies incorporating 2-dimensional modelling with dynamically linked floodplain mapping.

In addition to our hydrological and hydraulic modelling expertise, we have extensive experience in the development of innovative, sustainable flood risk management solutions tailored to meet our clients’ requirements. This process includes the consideration of both hard and soft engineering options, cost benefit analysis, whole life costing and environmental impact assessment.

RPS expertise includes:

Hydrological assessment

River & estuarine modelling

Coastal process modelling

Storm surge analysis

Flood mapping

Stakeholder consultation

Economic assessment

Hydraulic structures design

Flood alleviation works design

Environmental impact assessment

Catchment management studies

Bridge assessments

Structural stability assessments

Case Studies

Carlow Flood Relief Project

Carlow Flood Relief Project

Carlow County Council

The award winning Carlow Flood Relief project safeguards residents of Carlow Town against the threat of flooding.

Carlow Town, with a population of over 23,000, has been affected by flooding from the Rivers Barrow and Burrin for many years.

The design of Carlow Flood Relief Scheme recommended containment of the 100 year flood within the river channels as the preferred solution, to be achieved through the construction of reinforced concrete and sheetpiled floodwalls.

The biggest challenge for RPS as project designer and engineer was to design defences that would not adversely impact on the town’s long relationship with its rivers. The project involved considerable correspondence with multiple stakeholders. The flood defence works incorporated new amenity facilities in the area, including a new improved boat slip and a pedestrian tow path.

As well as protecting the built environment and creating a new public realm, the works have provided an added benefit to the town by regenerating areas and enhancing the public’s association with the town’s rivers. The project won the Protecting the Built Environment Award at the Engineers Ireland Excellence Awards 2014.

Greater Dublin Strategic Drainage Study

Greater Dublin Strategic Drainage Study

Dublin City Council & Six other Local Authorities


Examined the systems, policies and future requirements of the region for foul and storm water drainage, driven by EU Water Framework Directive requirements.

RPS (as part of a joint venture) carried out a major strategic study of the entire urban drainage system (foul, storm and river system) and defined a strategy to deal with the needs of the Region. The Region includes the four Dublin Local Authorities plus large areas of counties Wicklow, Kildare and Meath covering a population of some 1.4m people.

The Strategy, costed at well over €1billion, set out proposals for wastewater collection and treatment, stormwater drainage and environmental management of receiving streams and rivers. It developed best practice policies for Operation and Maintenance, Sustainable Urban Drainage Systems (SUDs) and dealing with basements.

Titanic Quarter Flood Risk Assessment & Masterplan

Titanic Quarter Flood Risk Assessment & Masterplan

Titanic Quarter Ltd

Northern Ireland

The new Titanic Signature Building is a centerpiece and key catalyst in the regeneration of Belfast’s Titanic Quarter, and the economic recovery of Northern Ireland.

RPS successfully delivered a Flood Risk Masterplan, under the requirements of Planning Policy Statement 15, which provided a strategy to deal with the potential flood risk to this £3 billion, landmark development in Belfast. The work entailed a detailed assessment of fluvial flows on the River Lagan and a tidal and surge analysis of Belfast Lough for both the present day and 2100 epochs. This analysis provided the basis of a detailed flood risk masterplan, which ensured the long term sustainability of the proposed development against the effects of climate change.

Waterford City Flood Alleviation Project

Waterford City Flood Alleviation Project

Waterford City Council and Office of Public Works


RPS was appointed by the OPW and Waterford City Council to undertake a feasibility study and detailed design of the €15m flood alleviation scheme in Waterford

>The €15m project was developed to reduce the risk of flooding from the River Suir and John's River. RPS undertook detailed hydrological and hydraulic assessments of the river estuary, cost benefit analysis and developed the preferred solution of flood walls and embankments for public exhibition and engagement.

The preferred option incorporated the construction of approximately 10 km of flood walls and embankments along the river banks (River Suir and John’s River) in Waterford City and includes the design of approximately 1 km of an innovative 1.1 m high glass flood wall. RPS undertook all aspects of the project from inception, through design, construction, site supervision, project management and client handover.