Noss-on-Dart Marina, Dartmouth, Devon

Redevelopment of the current Marina with the creation of over 200 berths; a dry stack a boatyard with a 75-tonne boat hoist servicing, commercial units, restaurants and passenger ferry link.

Client: Premier Marinas & Hamill Davies Ltd (Engineer)

Site Investigation Value: £105,000

Project Value: £75m

A challenging yet rewarding project for Soils. The redevelopment of Noss-on-Dart Marina involved the creation of around 232 berths; a dry stack for 100 smaller motor craft; a boatyard with a 75-tonne boat hoist servicing private, fishing and commercial craft across South Devon; 21 marine trade commercial units; a hotel with 50 rooms, two restaurants and a spa; a car park and a Heritage centre dedicated to the site’s history. Premier’s plans also include a passenger ferry link to Dartmouth town with its shops, restaurants and historic places of interest.

Not exactly a small scale operation.

Soils designed an intrusive investigation including both in-situ and laboratory tests as well as supervising. This was in order to establish the ground conditions, suitability of the natural geological strata for the construction of building foundations and a new river-wall. This meant the investigation was carried out both over land and over water. Specific assessments were carried out to confirm the presence of and quantify the nature and likely extent of potential contaminants deriving from historical use of the site.

What Soils brought to the table

Naturally a number of permits and other paperwork was required on such a large scale and complicated project. Soils managed the release of the Marine License from the Marine Management Organisation and of other permits, successfully supervised and delivered the scheduled works during the normal development of the activities of the Marina.

Site works comprised:

– 4No Rotary Core Boreholes over land

– 2No Rotary Core Boreholes over water

– 2No Windowless Sampler boreholes

– 17No Dynamic probes

– 17No Machine excavated trial pits

– 6No Hand excavated trial pits

– 6No Soakage tests

– 21No In-situ CBR tests with TRL-DCP probe

– Concrete Coring

– Chemical Laboratory Analysis

Geotechnical Laboratory Analysis

– Factual and Interpretive Reporting

Operational conditions proved to be challenging for Soils. These challenges included the interaction with other contractors operating at the site, the undertaking of night shifts for drilling over water (always fun!), the adaption of the drilling rig to tidal effects and the interaction with the Harbour management. However, despite this Soils was able to complete site works on time and on schedule to the satisfaction of the client.

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