Holdfast Training Services Trial Blog

I am currently working for John Holland on the upgrade of the Bruce highway between Edmonton and Gordonvale.

The project is currently still in the design phase.  One of the tasks I have been involved in so far is conducting a take-off from the Prelim Design drawings to compare this data to the estimates at tender. There are significant differences but identifying them has been more challenging than it should be.  Chainages are often a standard point of reference on a road job so how hard could it be?  What is the chainage of the top culvert in this picture? What is the chainage of the bottom culvert?

Hint: There are 3x different chainages shown on this drawing.

I know there were mixed views on PMQ but in my mind this is a perfect example of where configuration management and change control would be useful. If every culvert was given a name/number it would save time trying to second guess which chainage different teams had used to refer to which culvert.  As it stands the drawings, schedule and programme on this particular project are not as joined up as they should be.