Coastal Defence Scheme Nearshore Data Monitoring Services for Pevensey Bay

Concepts

• pevensey bay
• southampton
• hydrographic surveying
• collection of wave characterisation data
• provision of radar services
• data gathering
• current data
• wave characterisation data
• wave field data
• coastal risk management

Location

PCDL, Environment Agency Depot, Pevensey Bay, East Sussex, BN24 6ND

Description

This tender is for the collection of wave characterisation data at Pevensey Bay, Sussex. The mixed, shingle barrier beach at Pevensey Bay, Sussex, represents a crucial asset in flood defence and coastal risk management along the East Sussex coastline. The 9 km frontage is highly dynamic, and suffers a net loss of sediment due to littoral drift, partly blocked by the Sovereign Harbour breakwaters. The spatial and temporal variations in beach volume, erosion and rollback remain poorly understood, and interventions to redistribute beach material are continuous. A better understanding of the dynamics of this barrier beach is needed to inform future management. The aim of the project is to measure shoreface processes, with an emphasis on wave propagation/transformation and sediment transport across the very shallow nearshore (out to approximately 5 m CD water depth).

Total Quantity or Scope

The procurement process is being conducted as an Open Procedure, consisting of a one stage tender process. The University proposes to enter into a contract for 18 months which includes the potential for a 6-month extension period. The data gathering will take 12 months and we may allow additional time to cover implementation or exit management issues, or delays to data gathering. The estimated value of Lot 1 is GBP 40 000 (excluding VAT). The mixed, shingle barrier beach at Pevensey Bay, Sussex, represents a crucial asset in flood defence and coastal risk management along the East Sussex coastline. The 9 km frontage is highly dynamic, and suffers a net loss of sediment due to littoral drift, partly blocked by the Sovereign Harbour breakwaters. The spatial and temporal variations in beach volume, erosion and rollback remain poorly understood, and interventions to redistribute beach material are continuous. A better understanding of the dynamics of this barrier beach is needed to inform future management. The aim of the project is to measure shoreface processes, with an emphasis on wave propagation/transformation and sediment transport across the very shallow nearshore (out to approximately 5 m CD water depth). Lot 1 Provision of Radar Services (or approved equivalent) for wave characterisation data for Pevensey Bay. Installation, maintenance and operation of a synoptic radar system or equivalent at the PCDL office, capable of delivering wave field data (including wave heights, periods, direction, and spectral properties) and surface current data for a duration of 12 months at a recording frequency of 15 minutes. The system must store and provide access to raw data such that further data service products may be derived if needed in the future. The system must be able to provide data to a distance of at least 2 km and preferably 4-6 km from the shoreline. The directional wave/current data must be gridded to a spatial resolution no more than 60 m Cartesian grid.

Award Detail

Award Criteria

CPV Codes

• 71353100 - Hydrographic surveying services
• 71351922 - Physical oceanography services
• 71351920 - Oceanography and hydrology services
• 35722000 - Radar
• 38290000 - Surveying, hydrographic, oceanographic and hydrological instruments and appliances

Indicators

• Award on basis of price and quality.

Other Information

Lot Structure: In order to review a full range of available options and identify the most suitable solution(s) for the University, in terms of both meeting the University's specification requirements and obtaining best value for money, this procurement has been divided into 2 lots: Lot 1: Provision of Radar Services (or approved equivalent) for wave characterisation data for Pevensey Bay Lot 2: Data on wave progression across Pevensey Bay with vertical velocity and suspended sediment profiles. Potential suppliers may submit a response in relation to any of the two lots or may submit a response to multiple (i.e. two) lots in any combination. Please note that potential suppliers are required to submit a separate Selection Stage response for each lot that they are applying for. For clarity, potential suppliers who wish to be considered for both lots will need to submit a separate Selection Stage response for each of those lots. E-Tendering Portal: The University is utilising an electronic tendering tool, In-Tend (https://intendhost.co.uk/ universityofsouthampton) to manage this procurement and to communicate with potential suppliers and/or tenderers (as appropriate). All documentation in relation to this tender can be downloaded from In-Tend. Potential suppliers/tenderers are advised that there will be no hard copy documents issued and all communications with the University, including the submission of Selection Stage and/or Invitation to Tender responses will be conducted via In-Tend. Regular monitoring of the portal is the responsibility of the potential supplier/tenderer. If you are not already registered as a supplier with the University of Southampton, you will need to register in In-Tend in order to access the procurement documentation. Once you have logged in as a supplier: click on 'Tenders'; locate the relevant project; and click 'View Details'. Once you are in the project screen, you will be able to register your organisation against the project and access all documentation by clicking 'Express Interest'. Potential suppliers/tenderers are advised that formal expressions of interest in the project must be by way of completion and return of the relevant documents via In-Tend. Further instructions for the submission of responses are below: To submit your return: 1) Log in; 2) Click 'Tenders'; 3) Locate the relevant project; 4) View details; 5) Click on the tab relating to the relevant project stage (e.g. 'Invitation to Tender'); 6) Click on the 'Attach Documents' button and upload your return; 7) Check all your response documents are uploaded and displayed in the 'My Tender Return' panel. The system will only permit your organisation to make one return; 8. Click the red 'Submit Return' button. Please note, to preserve the integrity of the procurement, all communications with the University must be made via the correspondence function within In-Tend. Publication of Award Details: In accordance with Regulation 50, paragraph (2) of the Public Contracts Regulations 2015 and subject to Article 5 and Annex 5, Part D (13) of Directive 2014/24/EU of the European Parliament and of the Council (if applicable), the University intends to publish the value of any resulting contract at the award stage, and reserves the right to do so. By submitting a response, potential suppliers/tenderers are consenting to publication of this information unless otherwise agreed in advance with the University. Costs and Expenses: Potential suppliers/tenderers are solely responsible for their costs and expenses incurred in connection with the preparation and submission of responses and participation in this and all future stages of this procurement. Under no circumstances will the University be liable for any costs or expenses borne by potential suppliers/tenderers or any of their supply chain, partners or advisers in this procurement process.