Mega-pipes get HAPAS approval after complex collaboration

02/05/2019 |

A technically demanding collaboration between Highways England, the British Board of Agrément (BBA) and the British Plastics Federation has delivered the first-ever HAPAS certification for plastic pipe drainage systems up to a 3500mm diameter.

The BBA’s Highway Authorities’ Product Approval Scheme (HAPAS) certification of Asset International’s HDPE Weholite pipe solutions from 1000mm to 3500mm is thought to be an industry first and comes after several years’ in-depth technical discussions and work between the various organisations and Asset International. 

The move gives projects the chance benefit from extra large capacity, lightweight surface and sub-surface drainage solutions.

BBA project manager Calai Vidjeane explained: 'Previously plastic pipes with an internal diameter of more than 900mm intended for installation beneath a road had been classified as ‘structures’ rather than pipes, limiting their scope of application. Asset International wanted to address this by achieving HAPAS approval for these larger systems but it had never been done before – there is no official technical standard for their use in highway applications.

'We therefore had to formulate and agree an assessment/test methodology with Highways England in order for the products to be fully evaluated. It was a challenging and technically demanding project that has created new opportunities for Weholite.'

Asset International technical director Vasilios Samaras added:  'It was a complex process with a number of parties involved. We were very impressed with the BBA, which moved the process forward quickly.

'It would not have been possible without the help and assistance of the British Plastics Federation and the British Board of Agrément, which have worked extremely hard in helping us to achieve this success.'

Asset International is now the first manufacturer of HDPE structured wall polyethylene systems of 900mm-plus to achieve HAPAS approval.

The HAPAS Certificate (18/H283) applies to 1000mm to 3500mm diameter pipes plus fittings. Key factors assessed by the BBA were:

  • Strength - adequate strength to resist the loads associated with installation and service
  • Joint performance - the fusion welded joints will remain watertight under normal service conditions
  • Flow characteristics - equivalent to thermoplastic pipes
  • Maintenance - can be cleaned using standard techniques
  • Durability - have a service life in excess of 100 years

The BBA certificate states: 'In the opinion of the BBA, Weholite Pipes from 1000mm to 3500mm internal diameter and fittings, when used in accordance with the provision of this certificate, will meet or contribute to meeting the requirements of Highways England for the design and construction of surface water drainage.'

The BBA HAPAS scheme was established in 1998 to provide a nationally recognised approval scheme for innovative products and systems used in highways works and construction. 

Highways InProfile

latest magazine issue
Highways jobs

Project Lead - Bridges and Structures WMF3037e

£45,718 to £46,731
We are currently seeking to recruit a Project Lead to join our Bridges and Structures team Kendal, Cumbria
Recruiter: Westmorland and Furness Council

Traffic Management Technician - WMF3040e

£27,711 - £28,624
Are you an organised and motivated individual who wants to make a difference to how our roads are managed? Cumbria / Various
Recruiter: Westmorland and Furness Council

Traffic Management Officer - WMF2114e

£37,035 - £37,938
Are you an experienced and motivated professional looking to take the next step in your traffic management career? Cumbria / Various
Recruiter: Westmorland and Furness Council

Senior Transport Planner

£47,532 - £50,574
Royal Greenwich is a borough synonymous with first class modern services Greenwich, London (Greater)
Recruiter: Royal Borough of Greenwich

Technician - Highway Inspector

Grade 8 £28,797 - £30,708 per annum (Pay Award Pending)
Within the Highways Maintenance Team we are looking for an enthusiastic, customer focused and experienced person to join the Service Derbyshire
Recruiter: Derbyshire County Council

Project Delivery Senior Team Leader

£74,480 - £85,964
Are you an experienced Chartered Civil Engineer (or equivalent professional qualification) Glasgow City
Recruiter: Transport Scotland

Assistant Traffic Management Technician - WMF2104e

£25,584 - £25,992
Westmorland and Furness Council is seeking an organised and enthusiastic individual to join our South Lakeland team Kendal, Cumbria
Recruiter: Westmorland and Furness Council

Bulky Operative

£25,584.00 - £27,269.00, Grade 5, 37 hours, Permanent.
An opportunity exists in the Council’s Street Scene Services for a Bulky Operative Wakefield, West Yorkshire
Recruiter: Wakefield Council

Project Delivery Team Leader

£57,710 - £71,842
Are you an experienced Chartered Civil Engineer (or equivalent professional qualification). Glasgow City
Recruiter: Transport Scotland

Traffic Management Officer - WMF2102e

£37,035 - £37,938
This is a key role supporting the delivery a wide range of traffic and road safety schemes. Kendal, Cumbria
Recruiter: Westmorland and Furness Council

Shared Service Manager (Waste) North Herts Council

£52000 - £61000 per annum
Shared Service Manager (Waste) North Herts CouncilNorth Herts CouncilPermanent, Full Time£52,866 - £61,866 per annum, plus car allowance (pay award pe England, Hertfordshire, Letchworth Garden City
Recruiter: Essex County Council

Street Scene Protection Officer - Braintree District Council

£30000 - £34000 per annum
Street Scene Protection Officer - Braintree District CouncilBraintree District CouncilPermanent, Full Time£30,313 to £34,612 per annumLocation
Recruiter: Essex County Council

Traffic Management Officer - WMF2102e

£37,035 - £37,938
This is a key role supporting the delivery a wide range of traffic and road safety schemes. Kendal, Cumbria
Recruiter: Westmorland and Furness Council

Assistant Traffic Management Technician - WMF2104e

£25,584 - £25,992
This is a key support role, helping to deliver a wide range of traffic and road safety schemes across South Lakeland. Kendal, Cumbria
Recruiter: Westmorland and Furness Council

Flood Risk Engineering and Strategy Officer

£49,764 - £55,623
In line with our One Coventry Values, we want to ensure that our communities are represented across our workforce Coventry, West Midlands
Recruiter: Coventry City Council

Senior Integrated Transport Officer

£34,324 - £37,529
Are you an experienced transport planning professional ready to influence strategic policy and drive real change Matlock, Derbyshire
Recruiter: Derbyshire County Council

Roadworker Trainee LGV Driver (3 Posts)

Grade 6 £25,183 - £25,638 per annum (Pay award pending)
We’re looking for Roadworker/trainee LGV drivers to be part of our team undertaking major highway, bridge and related construction and reconstruction Derbyshire
Recruiter: Derbyshire County Council

Engineer

£44,430 - £51,663
This post is within the Highways Design and Delivery Team. London (Greater)
Recruiter: Tower Hamlets London Borough Council

Civil Enforcement Officer - WMF3013e

£27,711 -£28,624
Are you seeking an active and challenging role, part of a friendly and welcoming team? Cumbria / Various
Recruiter: Westmorland and Furness Council

UGO Bus Driver

Up to £25081.00 per annum
UGO Bus DriverPermanent, Part TimeUp to £25,081 per annum (full time equivalent)Location
Recruiter: Essex County Council
SUBSCRIBE NOW

Latest Video

Subscribe to Highways today to ensure you keep your finger on the pulse of everything happening in the UK road network throughout the year.

SUBSCRIBE NOW