Check out Geocomp and GeoTesting Express’ quarterly newsletter.
iSiteCentral® Reaches New Milestone
By the end of 2025, iSiteCentral® will have processed 2+ billion sensor readings, giving project teams earlier warnings, few surprises, and clearer accountability across complex monitoring programs.
Designed to give project teams real-time visibility and control over complex infrastructure and geotechnical monitoring programs, iSiteCentral integrates data from a wide range of sensors into a single, cloud-based system. With customizable dashboards, automated reporting, and early-warning alerts, the platform helps clients detect changes quickly, reduce risk, and make informed decisions that keep projects on schedule and budgets under control. By removing delays caused by manual data collection and site visits, iSiteCentral not only saves time and costs but also builds greater confidence among stakeholders through reliable, accessible reporting.
Behind the scenes, Geocomp’s development team continues to advance iSiteCentral with enhanced features and smarter tools. These innovations are designed with one goal in mind: to keep our clients informed, safe, and ahead of schedule.
As demand grows, iSiteCentral is proving indispensable for organizations that need accurate, real-time data to guide decisions on critical infrastructure. From reducing risk to improving efficiency, the platform ensures that project teams have the insights they need, when they need them.
Preserving a Bridge Icon: Geocomp Supports Inspection of Zakim Bridge
An icon of Boston’s skyline, the Leonard P. Zakim Bunker Hill Bridge is undergoing targeted assessments to support safe, reliable operation for decades to come. For the Massachusetts Department of Transportation (MassDOT), Geocomp was subcontracted by AECOM to assess stay-cable condition and structural dynamics.
cable dynamics with minimal lane closure
Spanning the Charles River in Boston, the Zakim Bridge features a 745-foot main steel span supported by 116 stay cables, along with two cast-in-place post-tensioned concrete back spans. The south and north back spans measure 242 and 420 feet, respectively. Carrying eight lanes of I-93 traffic and a connecting ramp, the bridge plays a vital role in the region’s transportation network.
To support the development of an upcoming bridge preservation project, Geocomp deployed S-lynks wireless vibration measurement solution. This system enabled efficient and minimally disruptive data collection across all 116 stay cables, the main span unit, ramp, and both towers, under normal traffic and environmental loads.
Using our in-house Operational Modal Analysis (Snap-D) and Cable Tension Estimation (CTE) software, we determined the current cable tensions, resonant frequencies, mode shapes, and damping ratios. This work established an aerodynamic and dynamic baseline for the bridge that will support comparison with historical data and future inspection cycles, making it easier to detect changes in condition over time.
Originally constructed as part of the Big Dig, the Zakim Bridge is more than just a critical piece of infrastructure, it’s a symbol of Boston’s engineering excellence. Geocomp is honored to contribute to its continued resilience and safety for generations to come.
Rhode Island’s Largest Landfill: Safer Slopes, More Capacity, Compliant Expansion
Geocomp partnered with the Rhode Island Resource Recovery Corporation (RIRRC) to provide geotechnical design services for multiple phases of vertical and horizontal expansion at their Central Landfill — now reaching heights of up to 225 feet.
The landfill expansions rely on highly engineered, multi-layered liner systems, including impermeable clay layers, geocomposite drainage layers, and geosynthetic clay liners (GCL) constructed over compressible municipal solid waste. For long-term performance and regulatory compliance, GeoTesting Express conducted interface shear tests on the liner materials, while Geocomp performed advanced slope stability analyses to determine safe slope geometry and liner strengths.
Our deep knowledge of testing requirements and liner system performance enabled us to deliver cost-saving solutions for RIRRC. By optimizing material use and maximizing storage capacity, Geocomp helped extend the landfill’s service life while providing compliance with state regulations.
Advancing Offshore Wind Geotechnics: Insights from ISFOG 2025 in Nantes, France
In June, Geocomp’s Danilo Zeppilli, PhD and João Machado represented GeoTesting Express and Geocomp at the 5th International Symposium on Frontiers in Offshore Geotechnics (ISFOG) in Nantes, France. This international gathering brought together leading experts to share innovations that are shaping the future of offshore engineering. Dr. Zeppilli presented new research on predicting pile performance in challenging soil conditions, work that highlights Geocomp’s commitment to helping clients design safer, more efficient offshore foundations.
With offshore wind projects accelerating from Massachusetts to South Carolina, many turbines are being constructed on driven piles installed in glauconite deposits. These soils are notoriously complex: their crushability and changing plasticity make it difficult to predict pile driving behavior and long-term performance. For developers, operators, and designers, understanding these interactions is critical to managing risk, reducing uncertainty, and maintaining the reliability of offshore wind assets.
Geocomp’s research compared constant normal load (CNL) and constant normal stiffness (CNS) interface shear testing, laboratory methods that simulate the soil–pile interaction. While CNL testing has been widely used, CNS testing more closely replicates the stress conditions that occur during pile driving. By evaluating glauconite sand from the Navesink Formation in New Jersey under both conditions, the team gained valuable insights into crushability, friction evolution, and soil behavior during installation.
For clients, this work translates into better predictions of pile performance, more cost-effective design solutions, and greater confidence in offshore wind investments. By combining cutting-edge testing with deep geotechnical expertise, Geocomp and GeoTesting Express (GTX) helps warrant that offshore foundations are built on a solid understanding of the soils that support them.
Innovative Geotechnical Testing Nationwide: Geocomp Delivers Shear Testing Systems
Geocomp Delivers Large Direct Shear System to Terracon Laboratory in Tempe, AZ
Geocomp recently delivered a Large Direct Shear (LDS) testing system to Terracon’s laboratory in Tempe, Arizona – enhancing their ability to conduct advanced testing in rock mechanics. Terracon’s Tempe team provides rock testing for clients across the US. The LDS helps Terracon determine the shear strength and deformation characteristics of rocks, supporting the modeling of their mechanic behavior. Geocomp’s Products Division provided full system delivery, along with comprehensive installation, training, and support services for Mike Peters and his team, ensuring seamless integration into lab workflows and immediate testing readiness. We are proud to support Terracon’s business endeavor in geotechnical engineering, and they reflected on the quality and ease-of-use of the LDS saying, “The machine is handsome and has been fully utilized every day since it has been delivered.”
Delivering Innovation: Geocomp Delivers Shear Testing System at NGI Houston
Our products group is proud to announce the recent delivery of a Direct Simple/Residual Shear testing system at the Norwegian Geotechnical Institute’s (NGI) laboratory in Houston, TX. Led by João Machado, our technical team provided end-to-end delivery of the system, significantly reducing the lead time and supporting NGI’s engineers through the entire installation of their new product. This ensured smooth integration into existing workflows and immediate readiness for testing.
