Northern Lighthouse Board · Awarded contract
Awarded

Construction of Portain Beacon by Leask Marine Limited for Northern Lighthouse Board

Awarded 16 Nov 2020

View live tenders
Awarded16 Nov 2020
Value£112,850.00
SupplierLeask Marine Limited
AgencyNorthern Lighthouse Board
RegionScotland
CategoryInfrastructure
Ended 5y 7mo ago5mo term
Awarded 16 Nov 2020Expired 30 Mar 2021

About

Northern Lighthouse Board awarded a contract to Leask Marine Limited for the construction of the Portain Beacon, a 10.5m high structure with a 3-mile nautical light positioned at least 6m above mean high water springs, replacing the existing Portain Buoy.

The structure is predominantly green to serve as a day mark and includes a ladder from mean low water level to the working platform for safe access during maintenance and inspections.

The works involve forming a 4m high cylindrical gravity concrete base foundation directly onto the bedrock using 3.0m diameter precast concrete manhole rings as permanent formwork, filled with marine grade underwater concrete and stainless steel reinforcement.

Once cured, a pre-fabricated stainless steel structure is connected to the foundation using eight M30 stainless steel threaded holding down bolts cast in during the concrete pour.

A ladder attached to the main support column provides access to the LED lantern and topmark.

The contract value is £112,850.

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