Portsmouth Water has gone out to tender with an AMP8/9 framework contract for the Hermitage Stream catchment restoration worth an estimated total value of £7.295 million.
The water company is seeking contractors to undertake improvement measures to watercourses and habitats in the Hermitage Stream Catchment affected by the new Havant Thicket Reservoir Project.
The procurement is for a multi-supplier framework agreement for works. Interested suppliers should be able to demonstrate design and build capability based on broadly similar projects for undertaking improvement measures to watercourses and habitat. The scope of works entails both civils and environmental improvement measures.
Further information about the scope of the works and the procurement process will be provided to suppliers who responding to thecontract notice.
Portsmouth Water intends to proceed by procuring a framework agreement to enable minicompetitions for the detailed design and construction of works as required.
The two stage selection process will consist of:
- a pre-qualification stage will select 4 suppliers to submit their tenders for a specified package of works.
- the highest scoring supplier will be awarded the first call-off contract and the top 3 bidders appointed to the framework agreement.
Further works will be awarded on the basis of a mini-competition under the terms of the framework agreement. On different reaches of watercourses within the wider catchment of the Hermitage Stream a combination of detailed design, civil engineering and environmental measures will be required including:
- removal of concrete bed and banks;
- replacements of headwalls;
- reprofiling bed and banks;
- redistribution of bed material;
- erosion protection measures;
- new channel creation and backwater features;
- pond creation;
- localised bank excavation and reprofiling;
- flood plain excavation
Contract term will be 8 years - no renewal options are available
A contingency for additional works, which are not currently defined, is included within the estimated value of the works.
Portsmouth Water is looking to appoint a maximum of three participants to the framework agreement.
Time limit for receipt of tenders or requests to participate is 14 March 2025 – click here to access the tender documentation
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