“Adien have been an integral part of the project from the start and the contract would not have been as successful without their involvement. When BBES started to cost the project it was found to be impossible to cost accurately, as the existing service drawings were so out of date and incorrect. To this end Adien scanned and produced drawings of the 10 most difficult areas to ascertain how many services would be encountered, on the back of this information is was possible to cost the project and make it financially viable. Without this information this would not have been possible and the project would not have been viable from the outset.”

Phil Wilkinson – Project Manager, Balfour Beatty Engineering Services Limited

Adien’s involvement in the project

Building on the successful relationship developed across other major building projects undertaken by Carillion Building North within Catterick Garrison, Balfour Beatty Engineering Services commissioned ADIEN, as part of the bid process for the 11 KV Project, to carry out some comparison and evaluation work around the garrison to better understand the risk potential arising from the amount of services on the statutory undertaker records and the actual amount of services around the garrison, consequently 10 areas where selected and surveyed.

As a result of ADIEN’s findings Balfour Beatty Engineering Services made the decision for health, safety and commercial reasons relating to the discrepancies between recorded services and actual services, that the whole 22Km route would be surveyed before the cables were upgraded, the cables were to be up graded by means of open cut, thrust moleing and vacuum excavation in the majority of cases the type of technique used became dependent on the results of the utility survey and subsequent locations and proximity of services.

It was decided early on in the project that ADIEN would survey the route 2 weeks in front of the teams, this allowed for the correct quality assurance checks to take place and appropriate drawings of the route to be produced to adequately assist the installation teams in the safe undertaking of their works.

The Drawings of the proposed routes were produced in 200m linear lengths which formed part of the installation teams permit to break ground / work.

Prior to an installation team commencing work Adien would return to the site and remark the findings of the survey on the ground in 200m length packages.

ADIEN provided the project management team and their supervisors with a pictorial guide of the markings that would be present on the ground, offering clear indication as to service type present so far as is reasonably practicable.

All parties were invited to a workshop at ADIEN’s head office where we demonstrated methods of location utilised and the limitations of the technology and that the median expectation is an 85% success rate.

Upon completion of the survey works to the proposed route our senior supervisor was seconded to the project management team, where his duties included mark up identified services along with support advising on the findings of the surveys.

On completion of installation works and energising of the HV cables, ADIEN returned to site and surveyed the entire 22km route to produce “as installed drawings” as part of the submission and handover documents as required by the Client. This has now given the Client an accurate record of the all services in and around the new HV routes which is a vast improvement on what had previously been held by the MOD at Catterick Garrison.