![](https://united-civil.com//wp-content/uploads/2019/05/IMG_3941-1-600x350.jpg)
This live substation expansion project included several scopes of work to accommodate the expansion of the GIS system and a new emergency generator. Our work included both vacuum and conventional excavation for installation of grounding grid, concrete encased ductbanks as well as Trenwa trench. We also self-performed the installation of cast-in-place concrete foundations.
Tewksbury, MA