Russ Digby

Position:	Director
Location:	Bournemouth
Date of Birth:	18.04.1962
Education:	B Eng (Tech) (Hons) in Mechanical Engineering Elected to Member of the Institution of Mechanical Engineers (with the designatory letters CEng, I.Mech.E) in September 1992. Elected to Registrant of the Engineering Council in November 1992, Registration No.442522. Elected to Member of the Institution of Electrical Engineers (with the designatory letters MIEE) in July 2003. City & Guilds Level 3 Certificate in the Requirements for Electrical Installations (BS 7671:June 2001)
Recent Training and CPD:	NEC3: Preparing and Managing Engineering and Construction Contracts The CCNSG Safety Passport Construction Health & Safety and CDM 2007
Career History:	Trained as a Mechanical Engineer via four year thin sandwich (industrial placement with the Ford Motor Company) on Institution of Mechanical Engineers accredited degree course; Undertook a number of Technical Positions of increasing responsibility ranging from Design Engineer to Engineering Services Manager. During this period had total responsibility for all Technical, Project Engineering and Commissioning aspects of equipment used in the water, defence, automotive and industrial fields; Developed career path into specialist water engineering via Biwater Hydro Power where extensive knowledge and experience was gained working on several large gate installations; Considerable experience gained in the field of Finite Element Analysis and Computational Fluid Dynamics as applied to a wide variety of engineering structures and designs; Joined Kenneth Grubb Associates in 1998 to concentrate on Consulting Engineering work in the water-engineering field.
Additional Information:	Papers Presented: "Rehabilitation of Radial Gates within the UK Hydropower Industry", presented at the Institution of Mechanical Engineers Hydropower Seminar, IMechE HQ, Bird Cage Walk, London in December 2004 and again at the British Dam Society Supervising Engineers Forum, University of Manchester Institute of Science & Technology (UMIST) in April 2005. Kenneth Grubb Associates Ltd are corporate members of the British Dam Society, a technical branch of the Institution of Civil Engineers (ICE).

Relevant Project Experience - Kenneth Grubb Associates Ltd

Derbendi Khan Tainter Gates, Iraq

Retained by Binnie Black & Veatch, on behalf of the United Nations, to undertake checking calculations to determine the suitability of existing hydraulic installations to cater for increased system pressure consistent with lifting a radial gate.

Derbendi Khan Caterpillar Gates, Iraq

Retained by Binnie Black & Veatch, on behalf of the United Nations, to undertake a finite element study on the structural performance of a caterpillar gate during dynamic closure. The study helped to identify areas of the structure which required further strengthening.

Wansbrough Paper Mill, Watchet, Somerset

Retained by St.Regis Paper Company to design a wastewater management system to reduce the amount of water being abstracted from the Washford River for the paper making process. The installation controls the quantity of water consumed by the Mill and in parallel, maintains the water level in the Main River by actuating control gates automatically in response to ultrasonically sensed water levels. The gate installation includes provisions for river fish migration, and remote monitoring / control from the Wansbrough Mill site.

Shoreham Port Authority

Undertook the finite element analysis of a sector gate structure for Shoreham Port Authority.
Portishead Sector Gates and Stop Logs.
Retained by Ove Arup and Partners to design two sets of Sector Gates having a clear opening of 9.3 m and a maximum height of 13.3 m. The KGA brief was for complete workshop drawings and specifications for all parts. Work included the finite element analysis of gate structures.
Designed impounding pumps for the harbour. Specified operational system and controls for the lock operation.
In addition two sets of stop logs with an associated lifting beam were designed. The stop logs were also 13.3 m high x 9.3 m clear opening.
Subsequent assistance has been provided direct to the Marina operator for maintenance and operation related issues.

Jersey Storm Gate Study

Retained by the States of Jersey Public Services Department to undertake a finite element study of a Marina, Tilting Storm Gate. The study analysed the structural effect of varying wave and tidal conditions and considered the effects of extreme storm wave effects.
A further enhancement to the study involved the Computational Fluid Dynamics modelling of the Marina entrance to evaluate the effect of tidal currents. The study evaluated possible streamlining options.

Bonnington Hydroelectric Power Station Tilting Gate Study

Retained by Scottish Power (through Enterprise Engineering Services Ltd) to investigate operational problems relating to a set of counterbalanced tilting gates used to regulate the upstream water levels at Bonnington Power Station. The work scope included full analysis, site testing and recommendations for improvements.

Bonnington Hydroelectric Power Station Intake Gate Modifications

Retained by Scottish Power (through Enterprise Engineering Services Ltd) to design modifications to the intake gate to facilitate sealing to a higher standard than initially possible.

Bonnington Hydroelectric Power Station Surge Gate Inspection Report

Retained by Scottish Power (through Enterprise Engineering Services Ltd) to undertake an inspection and condition report for the surge gates at Bonnington Power Station.

Chatham Historic Dockyard Stop Logs

Retained by Dean and Dyball Construction Ltd to design a modular stop log system for protecting the historic boathouse at Chatham from flood tides. A full finite element and structural analysis was undertaken to establish the integrity of the design along with design code checking to BS 5950.

Loch Doon Hydroelectric Power Station Bulkhead Gate

Retained by Scottish Power (through Enterprise Engineering Services Ltd) to design a replacement bulkhead gate.

Dinorwig Pumped Storage Hydroelectric Power Station

Carried out CFD analysis on behalf of Edison Mission Energy to predict the flow characteristics within the Main Inlet Valve and overcome operational problems with the drive gear.

Cruachan Pumped Storage Hydrolectric Power Station Intake Gate

Retained by Scottish Power (through Enterprise Engineering Services Ltd) to undertake a finite element study of an existing hydroelectric intake gate. The work also involved the modification of elements of the lifting equipment.

Kilmorack & Aigas Hydroelectric Power Station Radial Gates

Retained by Scottish & Southern Energy plc (through Enterprise Engineering Services Ltd) to undertake a finite element study on existing radial gates. Undertook design enhancements post study.
Design of stop logs to enable the dewatering of the gates.
Detailed design of replacement trunnion pins, bushes and seals.

Hydroelectric Power Station & Dam Floodgate Reliability Assessments

Retained by Scottish & Southern Energy plc to review the control system reliability with respect to the complete stock of dam floodgates owned and operated by the client.
VisSim computer modelling of gate operation required to route flood water through the dam structure.
Detailed design specification produced on a site-by-site basis to enable upgrading of the control systems in line with the requirements of IEC 61508.

Inverawe Hydroelectric Power Station / Awe Barrage

Retained by Scottish & Southern Energy plc (through Enterprise Engineering Services Ltd) to design a set of modular stop logs to enable the establishment of dry working conditions for both the radial gates at Awe Barrage and the tailrace at Inverawe Power Station. Full site survey of radial gates and full Finite Element Analysis of radial gates structures including residual life assessments.
Detailed design of specialised stop log system to establish dry working conditions for the Freshet Gate at Awe Barrage.
Site survey and design of replacement hydraulic and electrical systems for the surge tank vertical lift gate at Inverawe Power Station.

Earlstoun Hydroelectric Power Station and Dam

Retained by Scottish Power (through Enterprise Engineering Services Ltd) to design a set of modular vertical stop logs to enable the establishment of dry working conditions for both the flood gates at Earlstoun Dam. Design of replacement roller trains and rocker paths for the floodgates.
Design of a replacement intake gate at Earlstoun Power Station.

Kendoon Hydroelectric Power Station (Blackwater Dam) Intake and Canal

Retained by Scottish Power (through Enterprise Engineering Services Ltd) to design a replacement vertical lift intake gate and counterbalance trolley.
Design of a two piece horizontal cofferdam to permit isolation of the entire intake canal, including integral "back-filling" sluices.

Stonebyres Hydroelectric Power Station Tilting Weir Gates

Retained by Scottish Power (through Enterprise Engineering Services Ltd) to design three replacement tilting weir gates and counterbalances for the intake to Stonebyres Power Station.
Design of a stop log system for the tilting weir gate and bypass gate.

East Farleigh Gate Assessment

Retained by Black & Veatch Consulting Ltd (on behalf of the Environment Agency) to carry out an M&E site survey of a vertical lift gates at East Farleigh on the River Medway.

Great Yarmouth Dry Dock Gate Assessment

Retained by Black & Veatch Consulting Ltd (on behalf of the Environment Agency) to carry out a confined space site survey and full structural assessment of a dry dock caisson gate at Great Yarmouth.

Environment Agency Eastern Region Term Consultancy Agreement - Corrosion Protection

Retained (in association with Halcrow) by the Environment Agency to survey the corrosion protection and mechanical aspects of water retaining structures within the EA Eastern Region. Surveyed the Tilbury, Easthaven, Fobbing and Benfleet Barriers and reported on remedial works required for each site.

Glenlee Hydroelectric Power Station (Craigenbay Intake)

Retained by Scottish Power (through Enterprise Engineering Services Ltd) to design a replacement vertical lift roller intake gate, counterbalance and lifting gear.
Design of the roller intake gate required a two piece construction to permit the component parts to be in compliance with the weight limit on the access bridge to the intake tower.

Colliford Dam

Retained by South West Water to carry out an investigation into the operation of the bulkhead closure gate and lifting beam used to service the valves in the valve tower. Design of dedicated lift facility and modifications to gate to ensure safe and reliable service in the future.

Teston Sluice

Retained by Black & Veatch Consulting Ltd (on behalf of the Environment Agency) to carry out an M&E site survey of a vertical lift gate at Teston Lock on the River Medway.