This concrete box is a manhole. These are precast, and set in place with a crane. In the olden days, carpenters used to build forms for concrete to be poured into. This is much quicker and more efficient, as well as modular.
These rings will be set over the top opening, giving us access once the manhole is covered with earth.

We've got two new manholes on the project, and we'll be tying into an existing manhole during phase 2.


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