United Civil was the site contractor on a building addition to Artists for Humanity, an arts and innovation youth center located in South Boston, MA. Our scope included site demolition, mass excavation and footing excavation, support of excavation, underground utility infrastructure and under slab trenching. We also disposed of 4,000 tons of contaminated soil. The building remained occupied through the duration of the project, requiring minimal noise and vibration impact to the owner. The project’s location in an urban, high water/tidal environment posed challenges such as heavy vehicular and pedestrian traffic, restricted work area and extensive dewatering.