Re: Dollymount Flood Wall – External Expert Brief.
Following unanimous approval of a motion by Dublin City
Councillors at an emergency meeting of the Council on Wednesday
November last (copy attached) it has been decided to procure a
external expert to independently assess the height of the partially
constructed and proposed new sea wall along Clontarf Road and
James Larkin Road between the Wooden Bridge and the Causeway
to Bull Island, Clontarf, Dublin 3.
Representations from members of the public who drive past
this new wall contend that it will obscure their views of Bull Island
thus requesting this review. Attached are frequently asked
questions and links to the City Councils web-site which outline the
history of the project so far and some of the main issues queried by
local and regional residents.
The brief for this external expert includes the following:
1. Site visits.
Meeting with Environmental Monitoring and Liaison
2. Review previous reports which include this section of flood
defence and the latest relevant national/international best
practice documents on climate change with a view to
verifying and/or establishing relevant design criteria. This
shall include but not be limited to:-
Greater Dublin Strategic Drainage Study (GDSDS)
Climate Change Policy Document No.5 adopted by
Dublin City Council.
Dublin Coastal Flood Protection Project.
Clontarf Promenade Wave Modelling Projects.
Dublin Bay tide gauge records with particular attention
to Sea level rise noted between 2000-2014.
An Bord Pleanala Decisions & Inspector’s Reports for
this stretch of wall.
Part 8 approval by Dublin City Council for this cycleway,
watermain and flood wall.
National/International best practice on guidelines and
recommendations on current and future flood defence
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Eastern Region CFRAMS reports and draft CFRAM
Irish Coastal Protection Strategy Study (ICPSS) – OPW
as it refers to this section at Dollymount..
Review of international best practice on design of
coastal defences/flood defences and climate change.
Other reports/analysis which the expert deems
3. Analysis and recommendation on the four main
constituents which make up the height of this proposed
and existing flood wall.
Static tide design level (appropriate return period and
global warming element (temporal allowance and
appropriate sea level rise allowance(s) for same)
associated wave defence component (based on wave
climate in lagoon and overtopping of flood wall),
freeboard allowance (if any required).
4. Assessment of the suitability of a glass wall option for the
highest portions (350m-460m) of the proposed new wall
relative to road level. Assessment of the suitability of
temporary flood barriers for the highest portions (350m-
460m) of the proposed new wall relative to road level.
5. Draft report in 3 weeks with final report in 4 weeks. The
report will outline all reports and studies read by the
expert, his/her conclusions from them and his/her analysis
and recommendation in respect of the height of the coastal
flood defence wall required for this section of Dublin City
coastline, i.e. adequacy of the existing design or proposed
new design level.
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