The project began with developing a detailed pre-construction design for the new District Heating network in the Temple Meads area and providing technical support during construction. The presence of a number of newly constructed developments and road layouts, diverted existing underground assets, and new utilities installed in this area, greatly contributed to the complexity of the project in terms of stakeholder management and design/technical coordination.
Subsequently, the heat network was extended to the Redcliffe area to supply existing and new developments and reached a total of 2km in length, designed and coordinated by 3DTD.
In parallel with the Redcliffe extension, 3DTD has been engaged to develop a detailed route design for the new Old Market Heat Network (OMN), which was installed in two independent clusters on the east and west side of the A4044 road. Later, the two schemes were interconnected across the A4044 arterial road. Executing the crossing was an exceptionally challenging exercise due to the high utility density, large volume of traffic, ongoing developments, and utility installations in the area.
With the interconnection, the scheme has reached a total length of 1.6km in Bristol’s urban area and will allow the entire OMN to be supplied by England’s largest water source heat pump and provide heat to thousands of homes, as well as to a variety of residential, commercial and government buildings.
To assist Bristol City Council in this convoluted environment, the services 3DTD provided comprised the following:
The result was a success, thanks to the experience and expertise of our team helping to negotiate the complexities of the project, as testified by the Council:
3D Technical Design have played a central role in supporting the development of a complex multi-party project through to its construction phase. They have assisted us in identifying, understanding, and managing complex project risks, whilst being flexible and focused, highlighting necessary options and solutions which have been vital to navigating our stakeholders through the various Heat Network route coordination options and challenges which exist within city-centre environments.
ENERGY INFRASTRUCTURE MANAGER
BRISTOL CITY COUNCIL
Although the combined length of the various BCC Heat Network Schemes has already exceeded 4km, the initiative is still growing and 3DTD is providing continued support to overcome the numerous challenges the future network extensions will present, including:
Concept design for major infrastructure crossings to assist the client during the preliminary conversations with 3rd Party Stakeholders.
Detailed 3D pipe route design and utility modelling.
Detailed hot-tap connection design.
Spatial coordination and detailed isolation valve chamber design to suit the heavily congested buried environment.
Comprehensive detailed building entry design that takes wall type, reinforcement and structural requirement of buildings into account, specifically developed for each building entry to ensure that the building’s structural integrity is preserved.