1. THE PROJECT Introduction to The Project History and status of The Tender for the D&B contract... 3

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2 TABLE OF CONTENTS 1. THE PROJECT Introduction to The Project History and status of The Tender for the D&B contract The Tender documents for the D&B Contract Special requirements for a railway bridge as part of the TEN-T line Construction methodology THE CONSULTANTS SERVICES THE SITE SUPERVISION STAFF General Site Supervision Engineers Scope and responsibility - General Key-Skills Site Supervision Engineers Substructures Site Supervision Engineers - Superstructures Training and Courses... 7 ANNEX A - ORGANISATIONAL RELATIONSHIP... 8 ANNEX B THE CONTRACTORS WORK PROGRAMME... 9 Page 1 of 9

3 1. THE PROJECT 1.1 INTRODUCTION TO THE PROJECT The new 4 km Storstrøm Bridge between Masnedø and Falster will replace the existing bridge from 1937, which is in poor condition and does not have the capacity to carry the increased railway freight traffic resulting from the opening of the Fehmarn Belt Connection. The bridge comprises approximately 45 viaduct spans of 80 m in length, and 2 navigational spans of 160 m each. The main bridge is a cable-stayed bridge, with a single pylon, carrying a double-track electrified railway (200 km/h for passenger trains) and a two-lane road (80 km/h), as well as a combined cycle and pedestrian path on a single cross section: The project includes some minor structures on land in the form of 3 underpasses, retaining walls and foundations for signs and gantries. As the new Storstrøm Bridge also by European standards - is a very large bridge, the management of the construction works will require special expertise. Page 2 of 9

4 1.2 HISTORY AND STATUS OF THE TENDER FOR THE D&B CONTRACT On 10 February 2015, the Employer (the Danish Road Directorate) launched a competitive dialogue tender for the Design & Build Contract for Storstrømsbroen Four prequalified Consortia submitted their tender in July 2017 after three rounds of dialog, during which the technical solutions and working methods have been developed and refined. The Contract was signed February THE TENDER DOCUMENTS FOR THE D&B CONTRACT The Tender documents for the Design & Build Contract for the construction of the bridge forms basis of this task and can be found at this homepage: Some of the documents are only drafted in English, while others are drafted in Danish and translated into English (for the tenderer s convenience). The translated documents can be found at the homepage above in group 17 Serviceoversættelser / Service Translations. The following documents are of high importance for the understanding of tasks in this Contract, as well as the relevant SAB (Special Works Specifications): DBS01 - A02_Definition_Drawings_Bridge SAB01 - Design SAB 02 - Management and Cooperation SAB 03 Worksite 1.4 SPECIAL REQUIREMENTS FOR A RAILWAY BRIDGE AS PART OF THE TEN-T LINE As the bridge is a railway bridge, and the railway is part of the Danish TEN-T line (Trans-European Network), certain specific procedures are required. The Site Supervisors are not responsible for these procedures, but has to aware of the processes, which in short are: the structural design has to be Validated in accordance with the procedures of Rail Net Denmark the project is subject to Notified Body (NoBo) verification of conformity to relevant Technical Specification for Interoperability (TSI) requirements an Independent Safety Assessment (ISA) with regard to Safety and Interoperability (S&I) in relation to railway safety is required For further information, please also refer to SAB01-A13 Approval Process Overview. 1.5 CONSTRUCTION METHODOLOGY The Contractor has chosen a span configuration with 80 m and 160 m spans for the approach and the main bridge, respectively. All bridge elements except the pylon, five piers, abutments and 5 bridge girder spans are prefabricated under factory like conditions in Vordingborg Harbour on Masnedø. The three bridge girder spans near Masnedø and the two spans near Falster will be cast in-situ, with the use of short interim embankments. The pylon and its foundation are cast in-situ within a dry cofferdam. Five piers and their foundations are to be cast in-situ within sheet piling walls. The remaining foundations consist of prefabricated Page 3 of 9

5 caissons placed on gravel beds. Pile inclusions are used for the pylon, the two anchor piers and one of the southern approach span piers. The Pier shafts, and pier heads, are to be prefabricated in approximately 3.2 m segments. The approach spans will be precast in near full span lengths of approximately 73 m. Each main bridge span consists in principle of two approach span elements supported on the anchor pier, a temporary pier and the pylon. After completion of in-situ connections between elements and installation and stressing of stay cables, the temporary piers are removed. The Contractor has chosen a cross section for the bridge deck with no cross beams, but short cantilevers and a central longitudinal concrete beam supported on delta frames in prestressed concrete. 2. THE CONSULTANTS SERVICES The Consultant shall provide staff for site supervision services in relation to the structures. The team of site supervision engineers must have broad competencies, which includes experience with construction of large rail - or road bridges across water. The site supervision engineers will work full-time at the bridge site, whilst their services are required, with the exception of short term experts. Regarding the expected time schedule for the supervision works for Substructures and foundations and Superstructures respectively, please refer to section 7 in Draft Agreement for Consultancy Services and Assistance. The work location shall be at the Employer's site office at the bridge location. A preliminary description of the Employer's organisation can be found as Annex A. The working language is English in relation to the Contractor, as stated in the Draft Agreement for Consultancy Services section 3. This document describes in general terms the expertise and expected services the site supervision engineers shall provide, as well as the requirements to be met. The contents of this document are not intended to definitively determine the extent of the services to be provided. The individual, specific tasks will continuously be agreed between the Employer (Discipline Manager) and the Consultant. The project and scope of the services are further described below. Page 4 of 9

6 3. THE SITE SUPERVISION STAFF 3.1 GENERAL The Site Supervision Teams (Substructures and Superstructures) will be an integral part of the Danish Road Directorate s Site Supervision Team as shown in Annex A. As indicated on the organisational chart, the site supervision teams for the Superstructure and Substructure respectively, will work under the direct management of the Discipline Managers. The Supervision Manager and his Supervisory Team, will cooperate and assist across the site supervision organisation in relation to issues related to Occupational Health & Safety, Environmental Services, Quality Control, programme monitoring, etc. The principle duty of the Employer s Site Supervision Team is to monitor that the work carried out by the Contractor fulfils the requirements according to the Contract, as well as to record and report on the Contractor s compliance with the obligations under the Contract. The Site Supervision Team shall be proactive in relation to monitoring the Contractor s - and the Employer s, planning of works which is reliant on third parties, e.g. permits, relocation of utilities, interfaces to Rail Net Denmark, the Employers supplies (as listed in Special Conditions Re 10(2) ). The Site Supervision Team shall perform their duties in such a way that no doubt can be raised, in regards that the full responsibility for the entire project, lies with the Contractor. As the Contractor is responsible for self-certification of the Works, the Site Supervision Team will be responsible for monitoring the implementation of the Contractor s Quality Control Plans, Quality Control and self-certification of the executed works in relation to the Design and Specification. The Site Supervision Team will be involved in: Monitoring and documentation of the Contractors work Participate in meetings with the Contractor s supervision team Contractors Requests for Information (RFI s) Contractors Change Notes (CCN s) Preparing Employers Change Notes (ECN s) Participation in evaluating non-conformity Reports (NCR s) Employer s Supervision Reports (ESR s) Ensuring that the As-built" material is forwarded by the Contractor, and review of these Commenting on the Contractors Method Statements Assisting in the planning of, and carrying out, any technical inspections as well as the Handover of the Contract, from the Contractor to the Employer. This above-mentioned activities describes in general terms the services the site supervision engineers shall provide. However, the contents of this document are not intended to definitively determine the extent of the services to be provided. A more detailed job description is to be developed, in cooperation with the Discipline Managers Page 5 of 9

7 3.2 SITE SUPERVISION ENGINEERS Scope and responsibility - General The Site Supervision Team, as described in this tender, shall cover all structural aspects of the main crossing (temporary and permanent), as well as the minor structures on land (underpasses, retaining walls, and foundations for signs and gantries). The Site Supervision Engineers refers directly to the two respective Discipline Managers, as indicated in Annex A. The two structural site supervision teams, sub- and superstructure, must as a whole cover all aspects of the site supervision services required. However, the site supervision teams can request short term expert assistance, within e.g. Geotechnics, concrete technology, stay cables, falsework from the Employer s Engineering Services or from their respective company. Short term expert assistance can only be arranged, with prior acceptance from the Employer (including the Discipline Managers). The Consultants Project Manager is responsible for adjusting the organisation of site supervision engineers to suit. However, the key employees shall be continuously engaged on the site. The Site Supervision Engineers will be responsible for: a) day to day site supervision of all structural construction works, including the geotechnical aspects related to the foundations. b) day to day handling of the technical - and construction related queries relating to the Structures c) review of documentation received from the Contractor d) overseeing the Control Plans, monitoring, verification and that quality control is carried out, e) handling of the roles Falsework inspector and Falsework Assessor in accordance with the Supervision Handbook on Falsework f) assisting in the collection and reviewing of the As-Built documentation Key-Skills Site Supervision Engineers Substructures The Site Supervision Engineers for the Substructures, will work as a team under the management of the Discipline Manager, and will be responsible for carrying out the site supervision related to the following technical scope and aspects in relation to the substructures, including the geotechnical aspects related to the foundations Structural Bridge- & Foundation Design Dredging Techniques Construction and installation of marine and land based foundations Concrete Bridge Substructures Installation & testing of piles/cofferdams/sheet piles/ Caisson foundations Soil replacement/gravel Bed foundation Scour Protection Construction Methods - Prefabrication Foundations & Pier Scaffolding & Formwork Non-prestressed Reinforcement Bridge Bearings Page 6 of 9

8 Corrosion Protection Temporary Structures Marine logistics Site Supervision Engineers - Superstructures The Site Supervision Engineers for the Superstructure will work as a team under the management of the Discipline Manager and will be responsible for carrying out the site supervision related to the following technical scope and aspects; Structural Bridge Design (including Cable Stay Bridges) Prefabrication superstructure elements Construction methods Construction Methods, including construction and installation of precast bridge span Temporary Structures Scaffolding & Formwork (including the roles of Falsework inspector and Falsework Assessor in accordance with the Supervision Handbook on Falsework) In-situ Concrete Construction Concrete Technology Non-prestressed Reinforcement Prestressed Reinforcement Stay Cables Bridge Bearings Road Expansion Joints Bridge Deck Waterproofing Systems Bridge Deck Surfacing Bridge Parapets & Guardrails Corrosion Protection Mechanical & Electrical Installations Operation & Maintenance and Access facilities Structural Health Monitoring Systems Training and Courses The individual team member of the site supervision team, must have the relevant training and courses for the tasks they are responsible for, e.g. Site Supervision of Waterproofing works, Prevention of Formwork Collapse C, Safety at Sea. Page 7 of 9

9 ANNEX A - ORGANISATIONAL RELATIONSHIP The Employer s planned organisation, at the time of tendering is indicated in the diagram below: Page 8 of 9

10 ANNEX B THE CONTRACTORS WORK PROGRAMME The Contractors preliminary work programme from the tender as shown below, has been uploaded to the supplier portal as a separate pdf-file. Page 9 of 9

11 Vejdirektoratet har lokale kontorer i: Aalborg, Fløng, Middelfart, Næstved og Skanderborg samt hovedkontor i København Find mere information på vejdirektoratet.dk Vejdirektoratet Niels Juels Gade København K Telefon vd@vd.dk vejdirektoratet.dk