The project involved comprehensive site preparation, including erosion control measures like installing silt fences, protecting inlets, and stabilizing stockpiles. Demolition work included removing concrete, asphalt, and existing structures. Earthwork tasks covered site grading, importing fill material for building pads and parking areas, and topsoil spreading for landscaping. A modular retaining…
The Hillis Group started this project by placing erosion controls, including the installation of compost filter socks, inlet protection using concrete blocks, fabric, and stone, erosion control blankets, and the temporary stabilization of topsoil piles with seed and mulch. Demolition activities of the old asphalt and concrete were then carried…
The project for JW Didado included providing Ground Penetrating Radar location services prior to excavation. The team demolished one circuit breaker foundation entirely and partially removed four bus support foundations to 6 inches below the finished grade. Mechanical excavation and backfill were performed for concrete foundations, which were then formed…
In early 2024, The Hillis Group undertook a project in upstate New York for the client to capture methane gas from a manure pond and connect it to a compressor station. The Hillis Group performed the groundwork necessary for the construction of the compressor station. Installation of a 20′ wide…
Existing site conditions would not allow a typical drainage basin to manage the storm water runoff created from a new natural gas compressor station. Engineers designed an underground filtration and storage system to handle the storm water runoff. Our crew excavated and installed the underground storm water management tank system…
Hudson River Crossing The Hudson River Crossing project took place along the banks of the Hudson River on both the Pennsylvania and New York sides. Our work included the safe removal of multiple trees around active energized natural gas equipment, installation of a 12’ high Redi Rock retaining wall, new…
The Hillis Group was contracted to mitigate an area of existing pipeline right of way that has been plagued with ditch line subsidence. This project consisted of removing asphalt driveways and pedestrian walk paths to excavate compromised soils around and under the existing pressurized natural gas pipeline. Sloping and trench…
The Hillis Group LLC was awarded a contract for selective demolition, excavation and backfill for new conduits and grounding and construction of new foundations for replacement of a transformer at the Deep Run substation in Old Bridge, NJ owned and operated by First Energy. The transformer being replaced furnishes electricity for…
The Hillis group was contracted to make improvements to a electrical substation in New Jersey. The scope of work performed by the team included demolition and removal of an existing bank, a transformer foundation, and several piers. The team used Ground Penetrating Radar (GPR) to survey excavation areas for the…
The Hillis Group performed the civil site work for the Springville Meter Station. Our work included the site clearing, stripping and stockpile of topsoil, temporary gravel surface for laydown yard, erosion control devices, cuts and fills necessary to bring the site to grade, stormwater retention basins, stormwater piping and outflow…
Copyright © 2025 The Hillis Group, LLC. All Rights Reserved.