Geotechnical Construction
ENTACT expertly delivers geotechnical construction services to address environmental impacts and strengthen subsurface site conditions for development or expansion.
Let Us Meet Your Challenge.
The ENTACT team is committed to our clients, offering in-house construction capabilities and engineering/geotechnical expertise to identify and deliver your best solution. For over 30 years, we’ve worked with native and imported soil, and constructed support systems in all types of environments.
- In-house treatability laboratory
- National, large-scale solutions experience
- Industry-leading safety record
Put Us to Work
Our geotechnical construction services include:
Ground stabilization / settlement and
liquefaction mitigation
ENTACT can employ multiple geotechnical skill sets in order to deliver the best project solution.
- Soil mixing and mass solidification
- Soil-cement , soil-cement-bentonite, and soil-cement-slag overlapping columns
- In-situ gravity retaining walls
- Hydraulic cut-off walls
- Shallow excavator mixing


Earth retention, excavation and structural support
We regularly install support systems to stabilize and strengthen work areas, enabling our clients to meet their site objectives.
- Steel, vinyl and HDPE sheet pile walls
- Benching and sloping
- Trench box and slide rail systems
- Auger cast piling
- Cement and slurry grouting
Barrier and slurry wall construction
Our experience includes the construction of slurry walls using a variety of materials, including in-situ soil-mixed walls, soil-bentonite slurry cut-off walls and/or self-hardening slurry cut-off walls.
- Soil-bentonite, cement-bentonite, slag-cement-bentonite, and soil-cement-bentonite
- Composite slurry cut-off wall installations
- In-situ auger soil mixed walls
- Biodegradable biopolymer slurry trenches
- Permeable reactive barriers (PRBs) and funnel and gate systems

See our geotechnical construction skills in action
ENTACT is proud to partner with our clients to solve some of their most complex worksite challenges. In an industry where experience is key, see how we’ve served clients like you.