Stillorgan

Question 1

Project Summary

Answer 1

• construct a covered reservoir, decommissioning the existing reservoirs to ensure a secure and sustainable supply of drinking water to over 200,000 people across Dublin, replacing the decommissioned reservoirs with a landscape amenity area. Contributing to the social, economic and environmental development of the local area.

Question 2

Value, Client & Funding?

Answer 2

Value: €35m

Irish Water - Publicly funded - taxation

Question 3

Procurement Route

Answer 3

Design and build
Client transferred the design responsibilities to the Contractor.
Contractor also adopted design risk (opposed to traditional design bid build) for the project and reflected this in the tender price.

Question 4

AECOM Appointment

• Services
• Fee
• Changes in scope?

Answer 4

Civil, structural, Architectural and Landscape design services.

• Contractor employed AECOM
• Design expertise to develop designs & propose Value Engineering techniques
• reduced estimated construction costs more
• competitive bid for tender

Fee: €1.34m lump sum – all professional services

additional fees - calculated using a table of pre-agreed rates

Question 5

Project Team

Answer 5

Designer: Nicolas O’Dwyer (up to planning)
Contractor: Murphy
Contractors Designer: AECOM

Question 6

The site?

Answer 6

Location: South East of Dublin City
Area: 20ha
Condition: 3 open air reservoir lakes and surrounding clay embankments, rock structures
Context: improve drinking water

Question 7

My Role

Answer 7

Designer
Drawings
Coordination with civils team – site conditions, service, access, maintenance
Designers hazard communicated to PSDP register for inclusion in the H&S file – principals of prevention –

Question 8

Unique aspects

Answer 8

CDM equivalent Ireland
Safety Health & Welfare at work construction Regs 2013

Irish H&S legislation – comes from same EU directive
Same focus – principlas of prevention, slightly different terms – PSDP for example

Question 9

How Aecom won the job?

Answer 9

PQQ advertised for Design and Build Contract
Murphy held discussions with AECOM
(Murphy bought out AECOM D+B in ROI)
Both parties discussed their resources and expertise then agreed to Bid together
No charge to Murphy at PQQ stage (profit leader)
Murphy shortlisted by Irish water
ITT stage – design fee agreed – used AECOM’s T’s &C’s – used for speed just to do tender
- Fee and programme agreed + win bonus for AECOM

Question 10

Challenges

Answer 10

Designers Hazard Register:
Challenge - Maintenance of meadow on roof of structure
Solution - Access slope and strength of building

Challenge - Little ground information as only known once reservoirs are drained
Solution – Communication with civils team, discussion on condition of already drained reservoir
wildflower proposed using spray – thin layer of soil needed