EA North Wessex Specialist Asset Surveys

Case Study Overview

Diving and confined space entry support to Jacobs Engineering condition assessments of structures.

Diving contractor responsible for all health & safety planning and team/equipment support to Jacobs engineers. Provision of Diving Project Plan and Confined Space Entry MS/RA.

Full surface supply diving equipment and team for down stream underwater inspections at Twerton Sluice. Confined Space entry team and equipment for access in to Ashton Vale Strorm Overflow chamber including provision of tools and Cygnus Ultrasonic Thickness meter to record residual thickness of steel sheet piles forming chamber.

At a glance

  • Client Name: Jacobs Engineering on behalf of EA
  • Location: Twerton Sluice, Bath (diving) and Ashton Vale Storm Overflow, Bristol (confined space entry)
  • Project Value: Award £5,000, Outturn £5,000 (NB support costs only)
  • Programme Duration: 4 days including mob/demob, 2 days on site Twerton, 1 day Ashton Vale – all work completed in 4 days.
  • In-House resources Work: Provision of 3 man R7M team with surface demand diving equipment plus confined space entry equipment to support Jacobs diving engineer.
  • Contract: ABP Purchase Order agreement

The Solution

All scheduled support work executed in a safe manner and delivered on time and within agreed budget. Provision for diving access via mobile crane from high sided river walls necessary inclusion for ease of access and full compliance with Diving at Work Regulations. Full liaison with EA Operations to gain access to site areas EA approval sought for access entry methods at both sites, provision of EA Divesafe 4 documentation.
NB Jacobs Engineering staff now employed by R7M since 2009.

Provision of containerised dive system on Hiab lorry c/w with crane and man riding basket to provide safe access/egress to diving engineer over high sided river walls. Diving supervision restricted down stream diving only due to hazard of differential pressure on up stream side. Recommendation to deploy mini ROV for upstream inspections. Executed safe management of both diving and confined space entry to allow meaningful inspection of structures.

EA North Wessex



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