Get readyGet ready: Week two…
Week two
Rex shadows Stevie, who sets out the outfall chamber from the job's survey control.
Stevie: Measure twice, Rex. Dig once.
Stevie's journey · Engineering · Story 3
Whose coordinates?
Two firms set out the same pipe from two sets of pins. They meet in the middle, nearly.
The wrong way
Week two
Across the site, the drainage firm's engineer sets out the outfall pipe from some pins he found in the grass. "They're on the grid. Close enough."
The pins
The pins were left by the ground investigation firm two years ago, on their own site grid. Nobody gave the drainage firm the job's control. Nobody asked for it.
Get readyGet ready: Week four…
Week four
The pipe is laid and backfilled. Rex: "Lovely straight line." Stevie: "Aye. Lovely."
Week five
The pipe arrives at the chamber 300mm to the left of the hole waiting for it.
Week six
Dug up and relaid: two weeks, one excavator, and a drainage firm saying "nobody told us". Technically true.
Two firms, two sets of pins, and a pipe that missed by 300mm.
Find out what Stevie should have doneStevie's Lesson 3 · Whose coordinates?, then the same story done the right way.