Ringsend Waste Water Treatment Works Extension Project - Long Sea Outfall Tunnel

Dublin City Council

The design and construction/execution of a ‘treated effluent' marine outfall system from the Ringsend Waste Water Treatment Works (WwTW) to the Irish Sea in Dublin Bay including:
- A c. 9 km Long Sea Outfall Tunnel (LSOT), c. 5m internal diameter, constructed in bedrock;
- An inlet shaft located onshore with an internal diameter of c. 20 m and up to 110 m deep.
- A c. 4 m diameter offshore marine riser shaft terminating in a ‘treated effluent' diffuser head structure located in marine water depths of 25 m.
- Marine sheet piling, culvert diversion, and related works.

Deadline

The time limit for receipt of tenders was 2013-03-14. The procurement was published on 2012-12-21.

Who? What? Where?
Procurement history
Date Document
2012-12-21 Contract notice
2013-03-05 Additional information
2014-05-22 Additional information
Contract notice (2012-12-21)
Object
Scope of the procurement
Title: Construction work for tunnels, shafts and subways
Quantity or scope:
Refer to the Suitability Assessment Questionnaire (Form QW1) and its accompanying introduction document for detailed information on the project and all of its requirements. A summary of the scope of works is provided below.The design and construction/execution of a ‘treated effluent' marine outfall from the Ringsend Waste Water Treatment Works (WwTW) to the Irish Sea in Dublin Bay. The baseline reference concept design of the outfall system, for which planning consent has been granted, comprises the following:-A new c. 9 km long sea outfall tunnel (LSOT) discharging up to 13.8 m³/s of treated effluent from the WwTW by gravity under all specified tidal conditions. Treated effluent is to be diverted to and enter the proposed LSOT at a new inlet shaft located onshore, c.750m east of the existing WwTW. The LSOT will connect to a new offshore marine shaft which rises to form a single effluent dispersal/diffuser head located above the sea bed in c. 25m depth of water at Lowest Astronomical Tide (LAT). The baseline reference concept design envisages the LSOT being up to 5m internal diameter and constructed in bedrock at depths of up to 60-110m below onshore ground level or existing seabed level over its length. Preliminary concept sizing envisages the onshore inlet shaft being up to 20m internal diameter and up to 110 m deep, and the marine riser shaft being up to 4m internal diameter approx and up to 60-80m deep below seabed. Localised marine sheet piling remediation works, culvert diversion works, and access road maintenance/upgrade works, are also required. The detailed design and execution of the project shall be undertaken by the Contractor in accordance with the Employer's Requirements to be issued at tender stage and under the contract, and in strict compliance with the project's planning, environmental, and other statutory consents. Further information on the project, the LSOT alignment and layout envelopes, its EIS and planning consent, is available at the following links:http://www.dublincity.ie/WaterWasteEnvironment/WasteWater/RingsendWastewaterTreatmentWorksExtension/Pages/RingsendWastewaterTreatmentWorksExtension.aspx;http://www.pleanala.ie/casenum/YA0010.htm
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Notice metadata
Original language: English 🗣️
Document type: Contract notice
Nature of contract: Works
Regulation: European Union, with participation of GPA countries
Common procurement vocabulary (CPV)
Code: Construction work for tunnels, shafts and subways 📦

Procedure
Procedure type: Restricted procedure
Type of bid: Submission for all lots
Award criteria
The most economic tender

Contracting authority
Identity
Country: Ireland 🇮🇪
Awarding authority type: Regional or local authority
Awarding authority name: Dublin City Council
Postal address: Environment and Engineering Department, Block 1, Floor 4, Civic Offices, Wood Quay
Postal code: 8
Postal town: Dublin
Contact
Internet address: http://www.dublincity.ie 🌏
E-mail: ringsendextension@dublincity.ie 📧
Phone: +353 12222022 📞
Fax: +353 12222323 📠

Reference
Dates
Date dispatched: 2012-12-21 📅
Submission deadline: 2013-03-14 📅
Publication date: 2012-12-27 📅
Identifiers
Notice number: 2012/S 248-410199
Refers to notice: 2012/S 133-221077
OJ-S issue: 248
Additional information
Dublin City Council is subject to the provisions of the Freedom of Information Act (FOI) 1997, 2003. If you consider that any of the information supplied by you is either commercially sensitive or confidential in nature, this should be highlighted and the reasons for the sensitivity specified. In such cases, the relevant material, will in response to the FOI request, be examined in the light of the exemptions provided for in the Acts. It will be a condition for the award of any contract by Dublin City Council that the successful Tenderer and all sub-contractors (if applicable) possess a valid Tax Clearance Certificate from the Revenue Commissioners in compliance with Circular (43) 2006 (as substituted or amended) and that the certificate be maintained for the duration of the contract on a 12 month rolling basis. In the case of a non-resident Tenderer, a statement of suitability from the Revenue Commissioners will be required. Please note that contracts which involve elements of construction, installation and repair are subject to Relevant Contracts tax (RCT). Further details are available at the following link: http://www.revenue.ie/en/tax/rct/index.html. Note - that for the purposes of the Relevant Contracts Tax only the Contracting Authority is defined by The Revenue Commissioners as a “Principal Contractor” and the Works Contractor is defined as a “Sub-Contractor” and these definitions should not be confused with those applying under the Conditions of Contract (or elsewhere) in this procurement competition. Candidates must register their interest in this competition on the eTenders web site (www.etenders.gov.ie) in order to be included on the mailing list for clarifications. Dublin City Council does not accept submission of documents electronically via the www.etenders.gov.ie website or directly by email and requests to participate in this competition must be submitted strictly in accordance with Section 5.2 of the document entitled “Introduction to the Suitability Assessment Questionnaire”. Emailed/faxed/or late submissions will not be accepted. Candidates shall include their contact details (name and return address) on the outer packaging of their submissions. Please note in relation to all documents, that where reference is made to a particular standard, make, source, process, trademark, type or patent, that this is not to be regarded as a de facto requirement. In all such cases it should be understood that such indications are to be treated strictly and solely for reference purposes only, to which the words "or equivalent" shall always be appended. Please note also that all information relating to attachments, including clarifications and changes, in respect of this procurement competition shall be published on the Irish Government Procurement Opportunities Portal (www.etenders.gov.ie) only. Registration is free of charge. Dublin City Council will not accept responsibility for information relayed (or not relayed) via third parties. Requests to participate may be submitted in the English or the Irish language. Please note that OJEU contracts are covered by the Government Procurement Agreement (GPA). All queries regarding this procurement competition must be emailed to ringsendextension@dublincity.ie. Queries must be in question format and must be submitted by email. Responses will be circulated to those candidates that have registered an interest in this notice on the Irish Government procurement opportunities portal www.etenders.gov.ie. The details of the party making the query will not be disclosed when circulating the response. All queries must be submitted by 12 noon on Thursday 28th February 2012 to enable issue of responses to all interested parties. To receive more information about this tender, including any amendments and/or clarifications and to request any clarifications and/or to respond to this tender, you must register your interest to this tender on the following site: https://irl.eu-supply.com/app/rfq/rwlentrance_s.asp?PID=60723&B=ETENDERS_SIMPLE
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Object
Scope of the procurement
Short description:
The design and construction/execution of a ‘treated effluent' marine outfall system from the Ringsend Waste Water Treatment Works (WwTW) to the Irish Sea in Dublin Bay including:
- A c. 9 km Long Sea Outfall Tunnel (LSOT), c. 5m internal diameter, constructed in bedrock;
- An inlet shaft located onshore with an internal diameter of c. 20 m and up to 110 m deep.
- A c. 4 m diameter offshore marine riser shaft terminating in a ‘treated effluent' diffuser head structure located in marine water depths of 25 m.
- Marine sheet piling, culvert diversion, and related works.
Quantity or scope:
Refer to the Suitability Assessment Questionnaire (Form QW1) and its accompanying introduction document for detailed information on the project and all of its requirements. A summary of the scope of works is provided below.
The design and construction/execution of a ‘treated effluent' marine outfall from the Ringsend Waste Water Treatment Works (WwTW) to the Irish Sea in Dublin Bay. The baseline reference concept design of the outfall system, for which planning consent has been granted, comprises the following:-
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A new c. 9 km long sea outfall tunnel (LSOT) discharging up to 13.8 m³/s of treated effluent from the WwTW by gravity under all specified tidal conditions. Treated effluent is to be diverted to and enter the proposed LSOT at a new inlet shaft located onshore, c.750m east of the existing WwTW. The LSOT will connect to a new offshore marine shaft which rises to form a single effluent dispersal/diffuser head located above the sea bed in c. 25m depth of water at Lowest Astronomical Tide (LAT). The baseline reference concept design envisages the LSOT being up to 5m internal diameter and constructed in bedrock at depths of up to 60-110m below onshore ground level or existing seabed level over its length. Preliminary concept sizing envisages the onshore inlet shaft being up to 20m internal diameter and up to 110 m deep, and the marine riser shaft being up to 4m internal diameter approx and up to 60-80m deep below seabed. Localised marine sheet piling remediation works, culvert diversion works, and access road maintenance/upgrade works, are also required. The detailed design and execution of the project shall be undertaken by the Contractor in accordance with the Employer's Requirements to be issued at tender stage and under the contract, and in strict compliance with the project's planning, environmental, and other statutory consents. Further information on the project, the LSOT alignment and layout envelopes, its EIS and planning consent, is available at the following links:
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Duration: 48 months
Common procurement vocabulary (CPV)
Supplementary CPV code: IA17
IA21
Place of performance
Main site or place of performance: Pigeon House Road, Ringsend, Dublin 4 and Dublin Bay.

Legal, economic, financial and technical information
Conditions for participation
Suitability to pursue the professional activity:
Detailed requirements in respect of the above in accordance with Directive 2004/18/EC are set out in the Suitability Assessment Questionnaire (Form QW1).
Economic and financial standing:
In accordance with Directive 2004/18/EC Candidates must provide evidence of suitability to participate in this competition which meets all of the minimum requirements set out in the Suitability Assessment Questionnaire (Form QW1) in respect of the following:
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3.3a Evidence of Turnover
3.3b (not used)
3.3c Banker's Letter
3.3d Other Financial/Economic Information/References
3.3e Professional Indemnity Insurance (see also III.1.4 above)
3.3f Public Liability Insurance (see also III.1.4 above)
3.3g Employer Liability Insurance (see also III.1.4 above)
3.3h Performance Bond (see also III.1.1 above).
Minimum level(s) of standards:
Full details are set out in the Suitability Assessment Questionnaire (Form QW1).
For information purposes, some of the principal requirements are summarised below but Candidates must refer to the SAQ (Form QW1) for all of the detailed requirements which apply to this competition:
3.3a ‘Evidence of Turnover' requires candidates to demonstrate a minimum annual turnover in Civil Engineering Works in each of the last 3 years of EUR 140m of which EUR 40m must be in Tunnel Construction Works.
Technical and professional ability:
In accordance with Directive 2004/18/EC Candidates must provide evidence of suitability to participate in this competition which meets all of the minimum requirements set out in the Suitability Assessment Questionnaire (Form QW1) in respect of the following:
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3.4a Educational and Professional Qualifications (Managerial)
3.4b Educational and Professional Qualifications (Personnel)
3.4c List of Works carried out over the Past 7 Years
3.4d List of Technicians or Technical Bodies involved especially those responsible for Quality Control and those whom the contractor can call on in order to carry out work
3.4e A statement of the Average Annual Numbers of Persons Employed by the Contractor and those in a Managerial Position over the Past 3 Years
3.4f A statement of the Technical Equipment Available.
Minimum level(s) of standards:
‘3.4a Educational and Professional Qualifications (Managerial)' requires evidence of individuals proposed to perform the following roles:
(i) Project Director (ii) Project Manager (iii) Contracts Manager (iv) Commercial Manager (v) Construction Manager (vi) Health and Safety Director
‘3.4b Educational and Professional Qualifications (Personnel)' requires evidence of individuals proposed to perform the following roles:
(i) Health and Safety Manager (Tunneling Construction)
(ii) Lead Designer (Scheme Layout, Sizing and Design)
(iii) Lead Designer (Tunnel Structural Design)
(iv) Lead Designer (Onshore Shaft Structural Design)
(v) Lead Designer (Offshore Shaft Structural Design)
(vi) Lead Designer (Diffuser Shaft Connection Design)
(vii) Site Agent (Tunneling Construction)
(viii) Site Foreman (Tunneling Construction)
(ix) Pit Boss/ Foreman (Tunneling Construction)
(x) TBM Operator (Tunneling Construction)
(xi) Site Agent (Onshore Shaft Construction)
(xii) Site Foreman (Onshore Shaft Construction)
(xiii) Marine Site Agent (Offshore Shaft Construction)
(xiv) Marine Site Foreman (Offshore Shaft Construction)
3.4c List of Works carried out over the Past 7 Years requires evidence to be submitted of the following reference works/projects undertaken by candidates:
A. Contracts of a similar nature and complexity (3 nr)
B. Tunnel sizing, alignment and layout design (2 nr)
C. Tunnel structural design (2 nr)
D. On-shore shaft design (2 nr)
E. Off-shore marine shaft design (2 nr)
F. Diffuser shaft connection design (1 nr)
G. Tunneling construction (3 nr)
H. Onshore shaft construction (1 nr)
I. Offshore shaft construction (1 nr).
Contract execution
Deposits and guarantees required:
Candidates who rely on the Financial & Economic Standing or Technical Capacity of a parent company or other company for the purposes of pre-qualification shall, prior to Contract Award, provide parent or other company guarantees in a form approved by the Contracting Authority. Letters of undertaking to provide such guarantees shall be submitted with Requests to Participate.
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Prior to Contract Award, the successful Tenderer shall provide a Performance Bond, in the amount of 12.5% of the contract sum in a form approved by the Contracting Authority.
Subcontractors for specific works shall also be required to provide Collateral Warranties to the Contracting Authority in an approved form.
Refer to the Suitability Assessment Questionnaire (Form QW1) and its accompanying introduction document for further detailed information on the above requirements.
Main financing conditions and payment arrangements and/or reference to the relevant provisions governing them:
The Conditions of Contract for the project shall be the ‘Public Works Contract for Civil Engineering Works Designed by the Contractor (PW-CF 4)' (see http://constructionprocurement.gov.ie/contracts/ for current version) with project specific amendments, which conditions set out the main financing and payment arrangements of the contract. Project-specific amendments proposed to the Conditions of Contract (which shall be confirmed in the tender documentation) include: a limitation on the Contractor's liability under the contract, and a mechanism for the sharing of ground risk on the basis of a ‘Geotechnical Baseline Report'.
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Legal form to be taken by the group of economic operators to whom the contract is to be awarded:
If the successful Tenderer is a joint venture, consortium, or other unincorporated grouping of two or more persons (human, corporate, or unincorporated), those persons shall be jointly and severally liable to the Contracting Authority for the performance of the Contract.
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Other particular conditions:
Project-specific Insurances are required as detailed in the Suitability Assessment Questionnaire (Form QW1) and its accompanying introduction document, and include (but are not limited to) the following:
Professional Indemnity Insurance (Minimum level required: EUR 20 000,000);
Public Liability Insurance (Minimum level required: EUR 50 000,000);
Employer's Liability Insurance (Minimum level required: EUR 40 000,000).
The successful Tenderer (or its approved nominee) shall be appointed as Project Supervisor for the Design Process (PSDP) and as Project Supervisor for the Construction Stage (PSCS) in accordance with Statutory Instrument 506 of 2006, ‘Safety, Health and Welfare at Work (Construction) Regulations'.
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Procedure
Envisaged number of candidates: 5
Objective criteria for selection:
As outlined in the Suitability Assessment Questionnaire (Form QW1) and its accompanying introduction document, Candidates who meet all of the minimum suitability requirements shall have their submissions qualitatively assessed and shall be shortlisted on the basis of the following criteria:-
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3.4a - Educational and Professional Qualifications (Managerial) – 30% Weighting;
3.4b - Educational and Professional Qualifications (Personnel) – 30% Weighting;
3.4c – List of Works carried out over the past 7 years – 40% Weighting.
Languages
Language: English 🗣️
Other languages: Ga

Contracting authority
Contact
Contact point: Drainage Division - Executive Manager (Engineering)
Name: Documents are available from the eTenders Website (see address below)
Postal address: Documents are available from the eTenders Website (see address below)
URL for further information: http://www.etenders.gov.ie 🌏
Name: Documents are available from www.etenders.gov.ie
Postal address: Documents are available from www.etenders.gov.ie
Name: Dublin City Council
Postal address: Engineering and Environment Department, Block 1, Floor 4, Civic Offices, Wood Quay
Postal town: Dublin 8
Contact point: Drainage Division
Executive Manager (Engineering)
URL for documents: http://www.etenders.gov.ie 🌏

Reference
Dates
Publication date: 2012-07-10 📅
Identifiers
Notice number in the OJ S: 2012/S 133-221077
Additional information
Dublin City Council is subject to the provisions of the Freedom of Information Act (FOI) 1997, 2003. If you consider that any of the information supplied by you is either commercially sensitive or confidential in nature, this should be highlighted and the reasons for the sensitivity specified. In such cases, the relevant material, will in response to the FOI request, be examined in the light of the exemptions provided for in the Acts.
Show more
It will be a condition for the award of any contract by Dublin City Council that the successful Tenderer and all sub-contractors (if applicable) possess a valid Tax Clearance Certificate from the Revenue Commissioners in compliance with Circular (43) 2006 (as substituted or amended) and that the certificate be maintained for the duration of the contract on a 12 month rolling basis. In the case of a non-resident Tenderer, a statement of suitability from the Revenue Commissioners will be required.
Show more
Please note that contracts which involve elements of construction, installation and repair are subject to Relevant Contracts tax (RCT). Further details are available at the following link: http://www.revenue.ie/en/tax/rct/index.html. Note - that for the purposes of the Relevant Contracts Tax only the Contracting Authority is defined by The Revenue Commissioners as a “Principal Contractor” and the Works Contractor is defined as a “Sub-Contractor” and these definitions should not be confused with those applying under the Conditions of Contract (or elsewhere) in this procurement competition.
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Candidates must register their interest in this competition on the eTenders web site (www.etenders.gov.ie) in order to be included on the mailing list for clarifications.
Dublin City Council does not accept submission of documents electronically via the www.etenders.gov.ie website or directly by email and requests to participate in this competition must be submitted strictly in accordance with Section 5.2 of the document entitled “Introduction to the Suitability Assessment Questionnaire”. Emailed/faxed/or late submissions will not be accepted. Candidates shall include their contact details (name and return address) on the outer packaging of their submissions.
Show more
Please note in relation to all documents, that where reference is made to a particular standard, make, source, process, trademark, type or patent, that this is not to be regarded as a de facto requirement. In all such cases it should be understood that such indications are to be treated strictly and solely for reference purposes only, to which the words "or equivalent" shall always be appended.
Show more
Please note also that all information relating to attachments, including clarifications and changes, in respect of this procurement competition shall be published on the Irish Government Procurement Opportunities Portal (www.etenders.gov.ie) only. Registration is free of charge. Dublin City Council will not accept responsibility for information relayed (or not relayed) via third parties.
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Requests to participate may be submitted in the English or the Irish language.
Please note that OJEU contracts are covered by the Government Procurement Agreement (GPA).
All queries regarding this procurement competition must be emailed to ringsendextension@dublincity.ie. Queries must be in question format and must be submitted by email. Responses will be circulated to those candidates that have registered an interest in this notice on the Irish Government procurement opportunities portal www.etenders.gov.ie. The details of the party making the query will not be disclosed when circulating the response. All queries must be submitted by 12 noon on Thursday 28th February 2012 to enable issue of responses to all interested parties.
Show more
To receive more information about this tender, including any amendments and/or clarifications and to request any clarifications and/or to respond to this tender, you must register your interest to this tender on the following site: https://irl.eu-supply.com/app/rfq/rwlentrance_s.asp?PID=60723&B=ETENDERS_SIMPLE
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Complementary information
Review body
Name: The High Court
Postal address: Chief Registrar, The Four Courts, Inns Quay
Postal town: Dublin 7
Country: Ireland 🇮🇪
E-mail: highcourtcentraloffice@courts.ie 📧
Phone: +353 18886471 📞
Internet address: http://www.courts.ie 🌏
Information about review deadlines:
As stated in Statutory Instrument No 130 of 2010, ‘European Communities (Public Authorities' Contracts) (Review Procedures) Regulations, 2010.
Service from which information about the review procedure may be obtained
Name: Refer to VI.4.1) above
Source: OJS 2012/S 248-410199 (2012-12-21)
Additional information (2013-03-05)
Object
Notice metadata
Document type: Additional information

Reference
Dates
Date dispatched: 2013-03-05 📅
Submission deadline: 2013-03-21 📅
Publication date: 2013-03-09 📅
Identifiers
Notice number: 2013/S 049-078556
Refers to notice: 2012/S 248-410199
OJ-S issue: 49
Source: OJS 2013/S 049-078556 (2013-03-05)
Additional information (2014-05-22)
Reference
Dates
Date dispatched: 2014-05-22 📅
Publication date: 2014-05-27 📅
Identifiers
Notice number: 2014/S 101-175820
OJ-S issue: 101
Source: OJS 2014/S 101-175820 (2014-05-22)
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