Leading with Science®
Leveraging Our Technology

Tetra Tech Delta delivers solutions that combine science and engineering expertise with advanced analytics and technology. Our interdisciplinary teams collaborate with our clients to create customized, sustainable, and scalable solutions to address their most challenging problems.

Tetra Tech Delta Highlights

Water and leaves flow into a sewer grate represent Tetra Tech’s Csoft® Analytics platform for sewer network management

$1 billion saved

Analytics and automation platform optimizes sewer networks in real time to save more than $1 billion in wastewater program costs

Depiction of rail track assessment point cloud from Tetra Tech’s RailAI and automation system

80% cost reduction

Autonomous railcar solution with dynamic AI operates unmanned at high speeds, decreasing track inspection costs by 80%

Dashboard images represent Tetra Tech’s Auxilium chatbot that uses AI to resolve customer inquiries

75% queries resolved 

AI-powered chatbot answers text and voice commands and was trained to successfully resolve 75% of user questions autonomously

Tetra Tech Delta

At Tetra Tech, we provide value-generating solutions by combining operational expertise, science, and technology.

Our Tetra Tech Delta  encompasses the advanced data analytics and digital technologies that we have designed to provide transformational solutions for our clients.

We create solutions that answer client needs—from smart data collection and advanced analytics that support decision-making to automated intelligent processes and secure cloud solutions that modernize operations. Tetra Tech Delta solutions provide AI-powered insights that can optimize asset management, increase resiliency, and reduce risk.

Tetra Tech Delta builds on more than 50 years of research and industry-leading, technology-driven experience that serve as the foundation for the solutions we are providing to our clients today. Tetra Tech’s interdisciplinary experts understand the challenges our clients face and how to leverage technology to solve them. 

Unparalleled insight
Transformational solutions
The Delta 


Twinning the physical world through data, numerical models, and predictive analytics to understand outcomes and optimize decision-making

Tetra.Simulate leverages our suite of modeling systems to simulate air, land, and water systems, allowing us to predict outcomes and evaluate future scenarios rapidly and reliably. We support science-based decision-making and optimization by building an understanding of water and environment systems behavior.


Hydrodynamics and hydrology

Atmospheric, weather, and fire

Water quality and pollutants

Surface and groundwater


Numerical models

CFD modeling

Energy modeling

Machine learning

Scenario Analysis




Multi-objective optimization



Virtual reality


Interactive portals


Modernizing operations through cloud migration, data management, and custom software development

Tetra.Cloud delivers secure, cost-effective, and flexible cloud-based solutions that use our tools and technologies to rapidly scale to meet the most demanding mission-critical needs by combining industry-leading technology expertise and in-depth operational knowledge. We open new opportunities for faster, more efficient, and secure data analytics, management, and processing through Tetra.Cloud.

Cloud Computing

Cloud architecture

Cloud migration

Cloud operations

Data lakes


Cloud security

Advanced cyber defense

Identity management

Certification and accreditation

Innovation Lab

Manual processes automation

Tool and solution evaluation

Rapid prototyping

User engagement

Software Development

Agile development

Performance and security testing

Low code development

Application modernization


Partnering with our clients to deliver advanced analytics solutions to support their digital transformation and enhance operational performance

Tetra.Analytics starts with identifying the areas where AI will have the greatest benefit—large data sets, real-time data processing, and high-volume information management. Our teams of industry experts and data scientists work together using tools and technologies to design intelligent, data-driven solutions that generate insights and optimize business performance.

Artificial Intelligence

Machine learning

Symbolic learning

Computer vision

Natural language processing

Data Management

Data collection

Data lakes

Cloud migration

Visualization and dashboards

Industry 4.0


Digital twins

Smart infrastructure


Process Optimization

Energy management

Water and waste management

Workflow design

Enterprise software


Combining resilient and sustainable design with connected technologies to provide solutions for smart buildings and industrial applications

Tetra.Design augments traditional design procedures with our advanced design tools and proprietary automation to deliver smart building and asset management solutions. Our team of industry experts draws upon our deep expertise in digital design processes, including Building Information Modeling (BIM), digital twins, advanced engineering simulations, and real-time data integration for design optimization, asset optimization, and predictive analytics.


AI and machine learning

Predictive analytics

Design automation

Performance optimization

Asset Management

Indoor mapping

Digital twins

Predictive maintenance

Capital investment planning

Smart Buildings

Resilient and sustainable design

Modern and healthy workplaces

Advanced energy management

Building automation



VR and AR design-build

CFD modeling

Energy modeling


Applying geospatial solutions that integrate data collection, analytics, and smart delivery to improve decision-making throughout the project life cycle

Tetra.Maps provides integrated mapping solutions using our suite of tools for state-of-the-art data collection, airborne sensors and camera systems, enterprise mapping software, and robust information technology infrastructure. We use geospatial tools and geoanalytics to deliver real-time dashboards that support decision-making for our commercial, government, and defense clients.

Data Collection

Mobile field data collection

Remote sensing

Sensors and IoT

Autonomous platforms

Data Management

Enterprise GIS

Data lakes

Cloud migration



Image analysis

Machine learning


Predictive analytics

Data Delivery

Virtual reality

Custom portals

Interactive dashboards

Stakeholder engagement

Tetra Tech Delta Solutions

A view of a street with red highlighting of part of the street and trees, showing LiDAR used to provide corridor clearance assessments.
Unleashing the Power of Data Using FusionMap’s AI-powered Insights
50% time savings for modeling and inspections

Tetra Tech’s FusionMap™ is an innovative and flexible web-based platform that transforms how users can access, manage and visualize their geospatial data. FusionMap integrates custom AI models to extract actionable intelligence from various data sources. Its comprehensive asset management, immersive 360-degree imagery, and augmented reality (AR) capabilities further enhance the user’s ability to explore data, making FusionMap a leader in AI-powered geospatial data management.

  • 50% reduction in time spent on 3D modeling and inspections
  • Expanding library of more than 45 AI models tailored to client requirements
  • Near-real-time LiDAR change detection of thousands of miles of roads, highways, and rail tracks with millimetric accuracy
  • 365/24/7 fully automated flood monitoring of more than 2,000 miles of assets from coast to coast
  • More than 70 terabytes of processed, analyzed data from satellite vendors updated weekly
Point cloud data from Tetra Tech’s RailAI and automation system that modernizes rail track inspection
Improving Safety and Producing Faster Results Using RailAI®
16 times greater inspection rate

Our RailAI solution uses AI and automation to modernize rail track inspection, improving safety and efficiency. The RailAI autonomous railcar operates unmanned and provides real-time track condition data for immediate and preventative maintenance.

  • AI-powered autonomous data collection
  • Real-time processing at 70 mph survey speed
  • 24/7 fully automated track inspections
  • 5-times the functionality at 1/5 the cost per mile of manned systems
  • 16 times greater inspection rate than traditional methods
  • 50% reduction in visual inspections
A plane and blue flight path visualization created using Volans with circuit imagery overlaid.
Improving Decision-making and Communication with 3D Air Traffic Visualization Software
10 times faster noise and emissions impact calculations

Volans® is visually stunning, easy to use, and functionally rich software that supports stakeholder engagement and data-driven decision-making. Tetra Tech’s proprietary and patented 3D visualization software enables users to study environmental and noise impacts near airports, design new departure and arrival procedures, perform air safety studies, create video presentations for education and community outreach, and analyze air space restrictions and obstructions. Volans is an integral technology supporting airspace modernization in the United States and the United Kingdom.

  • Rapid 3D analysis of flight tracks and takeoff and landing procedures
  • Sophisticated video creation capabilities to assist in outreach and education
  • Calculates environmental impact of both existing activities and proposed designs
  • 10x speed increase in calculating noise and emissions impact at major airports
  • 3D visualization websites allow governments to inform and engage the public on nationwide airspace modernization
  • Visual comparison of airspace changes and local and regional impacts
Predictive analytics and energy dashboard for California State University pictured over San Luis Obispo, California
Decarbonizing University Campuses with Tetra Tech’s GHG Calculator
70% reduction in potential natural gas consumption

The California State University’s climate action plan will require investment to decarbonize their existing utility infrastructure. Using submeter data, inverse energy modeling, and predictive analytics, Tetra Tech developed the dynamic GHG Calculator planning tool to optimize heat recovery strategies and reduce campus GHG emissions.

  • Custom central utility plant scenario analysis planning tool
  • Dynamic dashboards for each of the 23 campuses
  • 70% reduction potential in natural gas consumption
  • Prioritized campuses for carbon-free heating systems
  • Supporting California’s goal to be carbon neutral by 2025
A view of a room and hands holding an iPad displaying the AiHear app with a projection of sound changes to the space.
Making Acoustic Simulations Accessible to Everyone: Hearing is Believing with AiHear™
Test and hear the acoustics of your space

AiHear™ is the first truly portable and simple-to-use acoustics auralization app that enables anyone to test and hear real-time adjustments to the acoustic parameters of an augmented reality or virtual reality space and associated sound sources. Anyone can easily simulate and experience how various design solutions will sound by customizing the sound sources, reverberation, and architectural and environmental acoustic conditions of the space and hearing the impact of these changes.

  • Experience Hearing is Believing with AiHear using only an iPad and an off-the-shelf headphone
  • Test and hear real-time changes to the acoustic parameters of a space
  • Portable and easy to use, anywhere
  • 50% setup time saving in comparison to traditional auralization systems
  • Highly interactive, supporting greater insight and informed decision making
Data connections over Louisville, Kentucky, represent Tetra Tech’s real-time analytics platform to manage sewer networks
Applying Analytics to Optimize and Protect Community Waterways
More than $200 million in cost savings

Tetra Tech partnered with the Louisville Metropolitan Sewer District in Kentucky to efficiently and sustainably manage sewer networks in real time using our CSoft® analytics platform. The solution uses data from real-time sensors, predictive modeling, and real-time controls (RTC) to optimize sewer network operations.

  • Weather, sensors, and models feed analytics and automation
  • More than $200 million in cost savings
  • 95% overflow reduction
  • 4-10 times lower cost than non-RTC alternatives
  • 2 billion gallons of contaminated water prevented from entering rivers
Contact us to learn how Tetra Tech Delta technologies can transform your next project.