7NT Engineering

At 7NT, we take pride in being a highly specialized geotechnical firm that is deeply involved in the design and construction of deep tunnels. These tunnels serve as massive storage facilities in the water and wastewater treatment industries, as well as transportation conduits through mountains and under streams.

Our Story

7NT was founded in 2008 by Pratap Rajadhyaksha, PE, a 45-year veteran of the engineering/construction industry. With a background in water/wastewater engineering, particularly as related to the control of combined sewer overflows (CSO), Pratap formed 7NT to specialize in complex drilling, laboratory services, geotechnical engineering, civil engineering, environmental services, surveying, construction management/inspection, materials testing, manhole rehab, and sewer repair.

Our Philosophy

At 7NT, we strive to deliver Integrity, Reliability, and Performance to every client on every job. We believe that our word is our bond, and we take pride in delivering what we commit to deliver, when we commit to deliver it. Our clients understand that we will do whatever it takes to get the job done on time, under budget, and with the highest quality.

Our Services

We provide highly specialized, complex drilling, testing, and inspection services that cater to a wide range of projects. Our services include:

• Drilling: Every civil construction project starts with a geotechnical investigation and every geotechnical investigation requires drilling to collect samples for testing.
• Inspection/Testing (QA): We offer high-quality inspection and testing services that ensure the highest level of quality and reliability in our projects.
• Engineering: Our team of expert engineers provides personalized engineering solutions to meet the unique needs of our clients.
• Construction: We offer a range of construction services, from drilling and excavation to civil construction and repair.

Recent Projects

We are proud to have worked on a variety of complex projects, including:

• Septic Tank Elimination Program: A comprehensive program aimed at eliminating septic tanks and providing a more sustainable and environmentally friendly solution.
• Manhole Rehabilitation: A project focused on rehabilitating manholes to ensure the safety and longevity of water and wastewater infrastructure.
• Special Patching: A specialized inspection and repair service aimed at extending the life of concrete structures.

Why Choose Us

7NT stands out from the competition due to our:

• Expertise: Our team of experts has decades of experience in the engineering and construction industry.
• Specialization: We specialize in complex drilling, testing, and inspection services, making us the go-to partner for clients seeking high-quality solutions.
• Integrity: Our commitment to integrity, reliability, and performance ensures that clients receive the highest level of service and quality.