COMHAIRLE CONTAE ÁTHA CLIATH THEAS
SOUTH DUBLIN COUNTY COUNCIL
MEETING OF CLONDALKIN AREA COMMITTEE
Wednesday, January 18, 2012
MOTION NO. 9
MOTION: Councillor M. McDonagh
This meeting notes that:
- the flooding in nos 15 to 33 Lealand Drive on Monday 24th October 2011 was caused, in part, by the inability of the existing drainage system to cope with the excess rainfall on that night
- the flooding was exacerbated by the location of the houses in a hollow and the raised landscaping at the rear of the houses
- this was the second time such flooding has occurred at these addresses in Lealand Drive, the last flooding occurring in the early 1990's
- more remedial action than the installation of additional gulleys at the fronts of the houses will be required to reduce the risk of flooding in the future
This meeting agrees that the Council:
- will actively explore altering the landscaping at the rear of the affected houses in Lealand Drive to reduce the risk of flooding
- will actively explore the need for expanding the capacity of the existing drainage system to cope with future weather events such as that which took place on 24th October 2011
- will take whatever measures are deemed necessary and as quickly as is possible to reduce the risk of flooding at Lealand Drive.
REPORT:
The Drainage Section will explore with the Parks, Housing and Road Sections if the landscaped area at the rear of the houses at 15 to 33 (odd) Lealand Drive , Clondalkin can be altered to divert the rainwater run-off away from these houses bearing in mind that the road levels on both the Nangor and Bawnogue Roads cannot be altered and that sight distance at the junction of these roads is required.
The Surface Water pipework in the Lealand and Alpine Heights areas looks to be more that adequate to cope with normal rainfalls and has been checked and flushed and found to be working smoothly. No surface water system is designed to take deluges like those which occurred on the 24th of October 2011.
There are plans to increase the number of gullys in the general area of the flooded houses to reduce the risk of flooding in these low lying houses in the future.