Fair Isle Bird Observatory Case Study

About the Project

The internationally renowned research centre in Shetland was destroyed by fire in March 2019. Situated on Fair Isle, an island between Orkney and Shetland spanning less than five square miles and with a population of just 50, the location is regarded as one of the best places in Europe to see rare birds.

With a new and improved building on the remote island estimated at £7.4m, innovative logistics solutions were required to transport the people and materials needed to complete the project.

JW Civils was commissioned to undertake groundworks for the Fair Isle Bird Observatory redevelopment. Due to the island’s remote location and limited infrastructure, all personnel, materials, and plant had to be transported by ferry or barge, requiring careful logistical planning, phased delivery, and a flexible approach to changing weather conditions.

Quick Facts

Location

Shetland

Client

Fair Isle Bird Observatory

Industry

Commercial

Line of Business

Charitable Trust

Challenges and Workarounds

Remote Island Access & Weather Dependency

Challenge: Transport could only be carried out via the Good Shepherd VI ferry or chartered barges, both heavily influenced by maritime weather and sea swell. High winds or rough seas could halt all deliveries and personnel movement for days at a time.

Work-around: JW Civils planned materials in priority-based tranches and created contingency buffers. Essential items were shipped early, and non-critical deliveries were scheduled around forecasted weather windows. Operatives remained on the island for extended periods to maintain project momentum during transport delays.

Limited Plant and Equipment Capacity

Challenge: Fair Isle’s landing infrastructure could only accept small plant, restricting machinery choice. Larger equipment typically used for groundworks was not transportable.

Work-around: The team optimised operations by utilising a 2.5-ton excavator for all excavation and handling tasks. Work sequencing was adjusted to maximise efficiency with smaller equipment, and formwork fabrication was completed manually on site by joiners.

No Ready-Mix Concrete Supply

Challenge: Due to the island’s isolation, no ready-mix concrete trucks could reach the site.

Work-around: JW Civils established a dedicated concrete-mixing station and produced all concrete on the island in small, controlled batches (approx. 0.33 m³). This required precise coordination of aggregate and cement deliveries and consistent manpower to maintain throughput.

On-Island Accommodation Constraints

Challenge: Fair Isle had extremely limited housing for workers, and long-term stays were unavoidable.

Work-around: JW Civils converted “The Puffin” into functional shared accommodation. Timber partitions were constructed to create private sleeping areas, and bespoke beds and storage units were built on site. Welfare provisions ranging from water barrels and extension leads to first-aid kits, waterproofs, and even recreational items were shipped to maintain wellbeing during extended deployment.

Challenging Terrain and Manual Handling Requirements

Challenge: Undulating ground and limited vehicle access meant certain areas, particularly the plant room duct route required extensive manual handling.

Work-around: Ducting and materials were transported in smaller loads and installed progressively along a 150 m uphill route. Gravel and drainage materials were distributed using the excavator and manual labour where plant access was restricted.

Project Execution

Initial Deliveries & Welfare Setup

Initial deliveries consisted of sundries and small plant, including essential welfare and safety provisions such as toiletries, life jackets, first-aid kits, water barrels, extension leads, torches, waterproof clothing, and miscellaneous site equipment. Recreational items such as board games and a BBQ were also provided to support staff welfare during the extended stay.

Accommodation for up to eight operatives was established in The Puffin. JW Civils constructed timber partitions to create individual sleeping areas and installed beds, storage chests, and general living facilities.

Site Preparation

  • Cleared the site of debris and exposed the existing foundations.
  • Established designated storage zones and a concrete-mixing area once plant arrived on site.

Foundations and Structural Works

  • Utilised a 2.5-ton excavator to excavate and pour pad foundations.
  • Steel reinforcement cages, fabricated in the northwest of Scotland, were transported to Fair Isle via HVG and the Good Shepherd VI ferry.
  • Two joiners were engaged to construct and install formwork directly on site.

Concrete Works

  • Aggregates and cement were delivered by ferry and barge.
  • All concrete was mixed on the island in batches of approximately 0.33 m³.
  • Following the installation of new beams, internal drainage was installed, backfilled, and a 1200-gauge DPM was laid and secured using C10/20 lean-mix concrete.
  • Additional concrete pads were poured for internal staircases and external pedestrian walkways.

Services and External Works

  • Installed ducting extending approximately 150 m uphill to the plant-room area.
  • Spread 50 tonnes of 20 mm grey gravel to create a vehicular parking surface.

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