What’s new in the latest version of the precast drainage technical guide

Posted by & filed under Design.

BPDA has just published a newly revised version of the precast concrete drainage sector’s “complete technical design guide”. Since our last issue of the guide, a number of standards, design methodologies and guidance documents were published. Moreover, feedback and enquiries we received over the last two years made us think about how to expand the… Read more »

What loadings are box culverts designed for?

Posted by & filed under Design.

Precast concrete box culverts have traditionally been used as channels to divert watercourses where new construction creates a barrier to the natural pathway of flow. They are strong, durable and are available in a wide range of sizes. This makes box culverts extremely versatile and has resulted in them being used for other applications including:… Read more »

Revised Technical Guide for the design and installation of concrete pipelines

Posted by & filed under Design.

The Concrete Pipeline Systems Association (CPSA) has published a revised version of its comprehensive Technical Guide on the design and installation of concrete pipeline systems. This latest edition of this indispensable publication will be essential reading for asset owners, designers and installers of concrete pipeline systems. This version has been updated to include the latest… Read more »

Updates to online calculators and new App

Posted by & filed under Costs, Design.


Two of our most popular online tools have been updated and we’ve also launched a new web App. Providing access to the Structural Design and Material Cost Calculators for people on the move via iPhone or Android devices enhances the usefulness of these highly popular online tools. That is why you’ll now find the new… Read more »

Cost effective bedding design

Posted by & filed under Costs, Design, Sustainability.

The pressure to deliver a cost effective drainage installation with minimum environmental impact has never been greater, but despite this, some pipelines are still fully surrounded in expensive imported granular bedding when a more considered approach to the design and selection of the pipe material could result in the use of a less costly, lower… Read more »

Inertia: Why it is important for buried sewerage infrastructure and why concrete outperforms other pipeline materials.

Posted by & filed under Design.

Wikipedia defines inertia as the resistance of any physical object to any change in its state of motion (this includes changes to its speed, direction or state of rest). It is the tendency of objects to keep moving in a straight line at constant velocity.  So, why is inertia important for buried sewerage structures? Without (lots… Read more »

Structural Design of Buried Pipelines: The American Concrete Pipe Association are direct about being indirect!

Posted by & filed under Design.

In their 2014 Spring newsletter, the American Concrete Pipe Association (ACPA) decided there was the need to publish an abrupt and insightful article rejecting claims that the direct design method provided by the American Association of State Highway and Transportation Officials (AASHTO) should be used to design reinforced concrete pipes. This position may have been… Read more »

More news on pipeline bedding design

Posted by & filed under Design.

If our Blog in March and eBlast in May plus social media postings escaped your attention and you haven’t seen our ads and editorial coverage running continuously in the trade press since March, here’s another chance for you to reduce your pipeline installation costs and embodied carbon. CPSA has produced a new CPD seminar “Optimising… Read more »

Overspecification of pipe bedding – the implications

Posted by & filed under Costs, Design.

Bedding is an essential component in every “open cut” pipeline installation. Its primary function is to transfer loads between the pipe and the surrounding soil.  However, the design of the bedding system can have a significant impact on the cost of an installation and also on the environmental impact of the project as a whole.   … Read more »