Multi-Party Framework Agreement for the preparation of Surface Water Management Plans (SWMP) for Fingal County Council

To establish a Multi-Party Framework for Engineering Consultancy services for the preparation of Surface Water Management Plans (SWMP) for Local Area Plans (LAP), Masterplans, Urban Frameworks and other study areas;

Surface Water Management plans will consist of two key integral parts;

1. Preparation of Strategic Flood risk assessments in accordance with the “Planning system and Flood risk Management Guidelines for Planning Authorities”. This will include for all relevant stages of flood risk assessment as outlined by the Guidelines. 

2. Preparation of Sustainable Drainage Strategies (SDS) for the sustainable development of lands under consideration for development. The strategies will be an example of best practice in the use of sustainable drainage systems (SuDS)/Nature Based Solutions. As set out in the Fingal County Development Plan, it is an objective of Fingal County Council to encourage, promote and implement sustainable drainage systems (SuDS) on all new developments throughout the county and to encourage where feasible the retrofit of sustainable drainage systems within existing developments. The Sustainable Drainage Strategy will examine the feasibility of using all SuDS solutions including, swales, permeable pavement, rainwater harvesting, tree pits, green and blue roofs, detention basins, ponds and wetlands amongst other SuDS devices. The SDS must comply with the Fingal County Council Green Blue Infrastructure Guidance and the Dept of Housing Nature Based Solution Guidance 2022.

Turloughs: Hydrology, Ecology and Conservation

304 turloughs listed in the Geological Survey Ireland Karst Database (2006)

Extend along the Western region of Ireland, from Co. Donegal to Co. Cork, with clusters of turloughs occurring in Co. Clare, Co. Galway, Co. Mayo and Co. Roscommon.

Includes site reports and maps for 22 turloughs studied in detail

Notes:

NPWS project investigated a relatively small number of turloughs (22 for most aspects of the project, and 8 sites for the invertebrate work)

For locations of turlough sites which might potentially end up being impacted e.g. by OPW drainage, a better source of information is the Geological Survey of Ireland karst database, which has national mapping of karst features including turloughs. 

This is available to view online on their Groundwater Data Viewer at https://dcenr.maps.arcgis.com/apps/MapSeries/index.html?appid=bc0dba38f3f5477c8fd400f66b5eedcd 

The turloughs are shown within the Groundwater Karst Data layer with a capital T inside a box.  This dataset is also available for download from a link at https://www.gsi.ie/en-ie/data-and-maps/Pages/Groundwater.aspx#KarstFeatures

There are more than 300 turloughs in the database (unknown how many of them have been ground-truthed and verified)

Summary of threats to Turlough SACs

Adjacent quarry impact on hydrology

Fertiliser and grazing by sheep and cattle

Housing development and septic tanks

Overwintering of horses

Farm run off and slurry

Drainage, land reclamation and reseeding

Road widening

Enrichment from abattoir

Enrichment from intensive dairy farms

OPW drainage

Drainage and peat cutting

Soil excavation / turlough basin scraped out / permanent pond deepened

OPW Tender on Lower Shannon Options – Preliminary Design (Flood Relief)

The OPW, on behalf of the Shannon Flood Risk State Agency Co-ordination Working Group, intends to commission a Project in the lower River Shannon and Mulkear catchment in Q4 2021.


The driver for this project is to increase the capacity of the Old River Shannon to help reduce fluvial flooding at lower magnitude events.

Project Objective 1: identify feasible options for the management of sediment and vegetation to prevent further reduction in, and if possible increase, conveyance and/or channel capacity of the Old Shannon between Clareville Water Treatment Plant and St Thomas Island

Project Objective 2: identify opportunities to bring wider benefits to the Project Area, e.g. environmental, water quality, amenity

Shannon Estuary Embankments

The Office of Public Works South West Region Arterial Drainage Maintenance & Construction division oversees approx 54km of estuarine embankments (including sluices) in County Clare, Ireland, along the banks of the Owenogarney River and the northern banks of the Shannon Estuary

Locations of sluices listed in following tender doc

Dublin Flood Data Monitoring – how to make a data request

What Flood Data is available on the portal?


Dublin City Council have been collecting and generating operational data relating to rainfall, river level, weather and general flooding. Due to an increase in the demand for this type of data, Dublin City Council have decided to make this data available through the Smart Dublin Open Data portal under a CC-BY-A-NC license. This means that the data can be used for non-commercial uses only.


There are currently five datasets available on the platform provided by three different sources:

– Dublin City Council Operational Data
– Pervasive Nation (CONNECT / DCC)
– Dunraven


The data consists of both historical data and near real-time data (the latest data is provided up to the previous 24 hour period).

The datasets available are:


1. Dublin City Council Operational Data: This consists of rainfall, river level, tidal, weather stations and has been collected since 2013. These sensors use cellular connectivity.

2. Pervasive Nation (CONNECT / DCC): This consists of 25 rainfall sensors deployed as part of a research project between Dublin City Council and CONNECT. The initial sensors were deployed in 2016. They use LoRaWAN connectivity.

3. Dunraven
This consists of 10 river level sensors deployed as part of a research project with TCD PhD Student Conor Dowling . They were deployed in early 2018. They use Sigfox connectivity.

To request access to the datasets, please complete the form using the link below:
https://forms.gle/3UKLSDcKX8EQSvLP9

Note: you will need to agree to the Terms and Conditions for use of the Flood Data.

– confirm this data will not be shared with third parties without prior consent from Smart Dublin or Dublin City Council

– confirm all insights and findings will be shared with Smart Dublin in advance of any publication and confirm this data will only be used for research purposes and not commercial purposes

Your request will be sent for approval and reviewed by Dublin City Council.

Natural Water Retention Measures

Natural Water Retention Measures (NWRM) are multi-functional measures that aim to protect water resources and address waterrelated challenges by restoring or maintaining ecosystems as well as natural features and characteristics of water bodies using natural means and processes.

Typical NWRM include riparian woodlands, agricultural and upland drainage modifications, non-floodplain wetlands, instream structures (e.g. large woody debris), and offline storage ponds.

It has been demonstrated that NWRM improve water quality and can be effective at reducing flooding in small catchments for frequent floods, that is, in catchments less than 10km2 and for floods with a one in ten chance of occurring in any given year. NWRM also achieve multiple benefits beyond water quality and flood risk reduction, including habitat creation, climate regulation, and the provision of amenity.

The benefits and appropriate application of NWRM are extensively documented in the Scottish Environment Protection Agency Natural Flood Management Handbook, the Environment Agency (UK) Working with Natural Processes Handbook, and the EU Commissions NWRM web-portal.