COMHAIRLE CONTAE ÁTHA CLIATH THEAS
SOUTH DUBLIN COUNTY COUNCIL

MEETING OF RATHFARNHAM / TEMPLEOGUE / FIRHOUSE / BOHERNABREENA AREA COMMITTEE

Tuesday, November 14, 2023

MOTION NO. 3

MOTION: Councillor E. Murphy

To ask South Dublin County Council to provide sandbags and flood prevention mechanisms to Edmondstown National School, Ballyboden. The Owendoher River running through Rockbrook came over the bridge during the recent bad weather in the area and the school have no preventative measures in place and are at a high risk of flooding. Videos attached for reference.

REPORT:

The channel has been checked and no obstructions or restrictions were found in the area,  Drainage Operations cleared vegetation in this area including under the bridge last year, and inspection did not indicate that further such work is needed at this time.

The surface water from the school discharges upstream of the bridge and is fitted with a non-return valve.  The school could consider rerouting their surface water drainage to discharge below the bridge so that drainage would be effective for the longest time possible during a rainfall event.  The school is located close to a river and we would therefore advise that they review their drainage arrangements and risk assess if additional flood prevention measures should be put in place.  River flows will be at a higher level before the bridge during high flows, particularly where the bridge may be posing a constraint on flows.  

The videos received are very helpful and these will be recorded in the database of surface water and flood events, which is useful in the design and planning for future flood alleviation schemes