Drainforce – Public Sewer Urgent Repair & Rehabilitation

DrainforcePublic Sewer Urgent Repair and Rehabilitation


Rob Rose
Alun Griffiths (Contractors) Ltd
Waterways House
Tel: 01873 857211
e-mail: enquiries@alungriffiths.co.uk

Contract Value: £55,000

Contract Dates: 2020

DrainforceScope of services:
• Immediate Mobilisation
• Road Closure/Traffic Management
• Customer Engagement Plan
• Public sewer repair 3.5m deep in the centre of the highway
• Robotic Cutting Pitch Fibre Blisters and defects
• Multiple overpumping
• UV lining of 150mm Gravity Sewer
• Jetting De-Silting
• Confined Space Entry
• CCTV Pre and Post

Relevance to Client: Drainforce were selected to complete this project as we had the equipment, skills and trained team able to successfully deliver the project efficiently within the restricted work site.

Drainforce were tasked to rectify a defective public sewer that had caused internal flooding and a pollution incident.

The gravity sewer is located along the centre line of the road, that required a road closure, diversion and access to be maintained to adjacent properties within the closed area. Liaison with the highway authority, customers and client allowed us to secure a safe working zone within area that was closed off from vehicular traffic and pedestrians.

All adjacent customers were informed daily on progress and update on next steps of work and the customers were very complementary on the work and the way the project was being professionally managed with consideration for their access requirements.

Services were marked out and service drawings provided, which confirmed services in the excavation area. A Method Statement and Safe Working System was confirmed and signed off for work to progress.

Briefing’s were completed Daily ensuring the details of the Method Statements were filtered through and that Daily Dynamic Risk Assessments were completed monitoring Weather and any variable conditions.

The gravity sewer to be repaired was a 40m downstream if VC and a 30 m length upstream of Pitch fibre.

The solution involved:
• Implementing multiple overpumping and long lengths of bagging
• Excavation to find a good end to complete a repair
• Robotic cutting of blisters and pipe delamination
• Pipe cleaning preparation
• UV lining of sewer
• Post lining sewer cleaning
• Backfill and reinstatement of excavation

The lines were post surveyed and the system put back into operation immediately after completion of the works with all data uploaded to Wincan Web for the client to view.

All works was completed in house with our fully trained employees.

All work was completed ahead of programme and within Budget.

Health & Safety
Drainforce had Zero incidents during the project.

Staff Competence
All of Drainforce Staff comply above industry standards. Training includes but is not limited to;
WRc approved lining installers for UV lining with approved products
Street Works
Confined Space
Risk Awareness
First Aid
Water Jetting Association
Associated Training on Equipment (Prokasro, Whale)
Manual Handling
OS19X and 21X
Trench Shoring and Support Plant Excavation

Quality Assurance
Drainforce are ISO 9001 and 14001 certified. We continuously monitor and improve our quality of services to this contract through the following points

Plant and Equipment
Drainforce deployed its own plant and equipment which is the business model.
All Equipment was less than 80dbs complying with Council noise regulations.

Value for Money
Drainforce provide excellent value for money through efficiencies on site and experienced staff. An attitude of getting it right first time and over delivering works to ensure repeat visits are not required. We offer excellent value for money through a schedule of rates with a clear transparent invoicing system which is charged on what we do not how long we spend on a job.

Clients and Own Systems
Drainforce do not have use of the client’s systems. We self-manage the works and have designed our own apps which the customer has visibility off.

Continuous Improvement and Innovation
Part of our ISO systems is to strive forward for continuous improvement across all aspects of the business from Health and Safety, Quality and Environmental.

Drainforce have close relationships with clients and frequently attend trade shows across the world keeping ahead of the game to ensure the latest innovation is applied to all aspects of works. Examples of this are our UV patches and UV Re Rounding capabilities, the only supplier in the UK to offer this service and able to complete emergency repairs in 5 minutes.


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