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

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

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

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.
difference
Tetra.Simulate
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.
Domains
Hydrodynamics and hydrology
Atmospheric, weather, and fire
Water quality and pollutants
Surface and groundwater
Models
Numerical models
CFD modeling
Energy modeling
Machine learning
Scenario Analysis
Deterministic
Stochastic
Hindcast
Multi-objective optimization
Visualization
Geospatial
Virtual reality
Dashboards
Interactive portals
Tetra.Cloud
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
Cybersecurity
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
Tetra.Analytics
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
IIoT and SCADA
Digital twins
Smart infrastructure
Automation
Process Optimization
Energy management
Water and waste management
Workflow design
Enterprise software
Tetra.Design
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.
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
Solutions
BIM
VR and AR design-build
CFD modeling
Energy modeling
Tetra.Maps
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
Cybersecurity
GeoAI
Image analysis
Machine learning
Modeling
Predictive analytics
Data Delivery
Virtual reality
Custom portals
Interactive dashboards
Stakeholder engagement
Tetra Tech Delta Solutions

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

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

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

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

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

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