II.1)
Scope of the procurement
Stillorgan Reservoir
Reference number:
16/323
45240000
-
Construction work for water projects
Works
II.1.4)
Short description
Stillorgan Reservoir is a modular storage facility for treated drinking water, built in two stages between 1862 & 1885. The site has a total plan area of approximately 16 hectares & is subdivided into three discrete water storage reservoirs, the Gray, Upper & Lower Reservoirs. The Lower & Upper reservoirs were constructed first, as part of the Vartry Water Supply Scheme. The Gray Reservoir was built in 1885 following a period of severe water shortage in Dublin City. The reservoirs originally contained water from the Vartry Supply Scheme alone; however, following construction of the Liffey Supply Scheme at Ballymore Eustace in the 1940s, a 24” main was laid between Saggart Reservoir and Stillorgan Reservoir to link the two supplies. An additional 1000mm diameter trunk main linking the supplies was constructed on a phased basis during the 1990s.
II.1.6)
Information about lots
This contract is divided into lots:
no
II.2.2)
Additional CPV code(s)
38421110
-
Flowmeters
44161200
-
Water mains
45232152
-
Pumping station construction work
45247270
-
Reservoir construction works
45251120
-
Hydro-electric plant construction work
45315100
-
Electrical engineering installation works
45351000
-
Mechanical engineering installation works
II.2.3)
Place of performance
Main site or place of performance:
Dublin
II.2.4)
Description of the procurement
Stillorgan Reservoir is a modular storage facility for treated drinking water, built in two stages between 1862 and 1885.
The site has a total plan area of approximately 16 hectares and is subdivided into three discrete water storage reservoirs, the Gray, Upper and Lower Reservoirs. The Lower and Upper reservoirs were constructed first, as part of the Vartry Water Supply Scheme. The Gray Reservoir was built in 1885 following a period of severe water shortage in Dublin City.
The reservoirs originally contained water from the Vartry Supply Scheme alone; however, following construction of the Liffey Supply Scheme at Ballymore Eustace in the 1940s, a 24” main was laid between Saggart Reservoir and Stillorgan Reservoir to link the two supplies. An additional 1000mm diameter trunk main linking the supplies was constructed on a phased basis during the 1990s.
The planned works are necessary to ensure compliance with EU Directives, Irish National Standards and Regulations relating to treated water for human consumption.
It is intended that the works will be implemented under a Design and Build Contract.
The contract primarily consists of the following:
Design-Build:
Draindown of Gray reservoir
160 ML covered storage in Gray reservoir , consisting of three cells and internal baffle walls
Manifold building (ca. 2,900 m2 area) for rationalisation of incoming pipework
Replacement of incoming pipework (ca. 3 km length varying diameter 600 mm – 1200 mm) including tunnelling works (ca. 25 m length, 1.5 m diameter) under the Green Luas line
New site entrance off St. Raphaela’s Road
On-Site-Electrolytic-Chlorination (OSEC) plant for secondary disinfection dosing at Stillorgan
Following commissioning of new storage and disinfection dosing, decommissioning Upper and Lower reservoirs
Internal road network
Site Drainage
Site services
Site Landscaping
II.2.11)
Information about options
Options:
no
II.2.13)
Information about European Union funds
The procurement is related to a project and/or programme financed by European Union funds:
no
II.2.14)
Additional information
Documents are available to all candidates who register their interest through e-tenders. All queries for clarification must be submitted via email to tenders@ervia.ie The questionnaire must be completed and returned to the address detailed in the attached document not later than 12:00hrs Tuesday 28th March 2017.