Habitat improvement and Tilting Weir installation - Old Hall Marshes

A Tender Notice
by ROYAL SOCIETY FOR THE PROTECTION OF BIRDS

Source
Contracts Finder
Type
Contract (Works)
Duration
3 month
Value
___
Sector
CONSTRUCTION
Published
10 Jan 2022
Delivery
01 Aug 2022 to 01 Nov 2022
Deadline
17 Feb 2022 17:00

Concepts

Location

Geochart for 1 buyers and 0 suppliers

1 buyer

Description

To improve the habitat found at RSPB Old Hall Marshes we propose to carry out the following, we will use material generated from reprofiling existing footdrains to renovate existing crossing points around the reserve. We propose to install a Tilting weir (RSPB to provide) and finally renovate several small islands into one larger island and top with shingle. The works will ensure that we have increased compartmentalisation across the marshes, with finer and more water control. This will enable better management potential and the ability to be more dynamic with water levels. It will also mean that we have mitigated some of the potential impacts of climate change, as water will be better directed on site to critical areas. The newly reprofiled footdrains will create enhanced and new edges for breeding and passage waders including locally important numbers of lapwing and redshank. The new weir will allow the unrestricted passage of eels across the marshes and ensure better and more water control in addition to the renovated crossing points. The new and improved island will create new breeding habitat for the red listed and rare little tern, a designated species in the Blackwater estuary. More details in the attached documents

CPV Codes

  • 45000000 - Construction work

Indicators

  • Contract is suitable for SMEs.
  • Contract is suitable for VCOs.

Other Information

Invitation to Tender RSPB Old Hall Marshes - Habitat Improvements - Invitation To Tender.docx Specifications RSPB Old Hall Marshes - Habitat Improvement Specification (002).docx Maps Appendix One - Maps.docx Crossing point drawings Appendix Two - Crossing point drawings.docx Crossing point specifications Appendix Three - Crossing point specfication and logistics.docx Crossing Point specifications Appendix Four - contruction management plan.docx Tilting Weir Appendix Five - Tilting Weir.docx

Reference

Domains