Projects
We work with a wide variety of clients in numerous markets. Below are some
featured projects which showcase our work.
Mukilteo Multimodal Terminal
Location: Mukilteo WA
Client: Washington State Ferries
Role: Design – Bid – Build
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The Mukilteo Multimodal Project provides for the design and construction of a new Mukilteo ferry terminal and multi-modal transit facility connecting commuters to train and bus transit. The facility includes passenger and maintenance buildings, a supervisor’s building, transit center and new toll booths. Ergosync performed communication and control systems design and fire detection system design including plans, specifications and estimates. Communications systems included network infrastructure, public address, visual paging, CCTV monitoring, telephones, fare collection, marine radio systems and ferry vessel wi-fi. Control systems included the building management systems, weather monitoring, and PLC control of the overhead passenger loading hydraulics.
I-90 Two Way Transit
& HOV Lane Conversion
Location: Seattle, WA
Client: WSDOT
Role: Project Management – Commissioning
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Ergosync is currently providing Fire & Life Safety expert services and serving as the owners Commissioning Agent for the I-90 Two Way HOV Lane Conversion project. This project includes a SCADA system upgrade for the Mt. Baker and Mercer Island I-90 tunnels. WSDOT selected Ergosynch because of our detailed knowledge of ,the systems in these tunnels. Our team performed the recent PLC upgrade in the tunnels replacing 12 existing PLC’s with over 3500 I/O points and over 40,000 lines of logic. We provided all engineering services including detailed panel drawings, programming, documentation, testing and commissioning.
Wastewater Treatment Plant PLC & SCADA Upgrade
Location: Edmonds, WA
Client: City of Edmonds
Role: Systems Design – Integration
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The City of Edmonds sought to upgrade its aging Wastewater Treatment Plant SCADA system. Ergosync supported the City through an on-call contract to replace the system and develop control strategies and wiring diagrams to guide the upgrades. At project kickoff, Ergosync developed a control strategy and accurate wiring diagrams to guide the upgrades, prioritizing the schedule to enable PLC programming. Throughout the project, control strategy documents were regularly updated to track changes. Ergosync also utilized an innovative tool to auto-generate internal panel wiring diagrams, accelerating the process and reducing costs. The existing HMI hardware was retained, with revised graphic screens integrated for the new PLCs. Ergosync implemented standardized data logging and Historian configuration, aligning with industry best practices and clearly documenting all data sources.
E360 East Link Light Rail Project
Location: Seattle, WA
Client: Sound Transit
Role: Design – Build
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Erogsync was tasked for the civil systems integration and BMS design for the two stations and parking structure. Throughout the design process our engineers coordinated with all other disciplines to ensure a seamless integration between Civil and Systems contracts. This coordination required extensive 3D modeling using Revit to ensure all design elements were constructible.
WWTP Blower Replacement
Location: Edmonds, WA
Client: City of Edmonds
Role: Design
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The City of Edmonds required a new high-efficiency blower for their secondary aeration process, needing it installed and operational within two weeks to qualify for a significant energy utility rebate. The new blower provides a 30% energy reduction, better aeration control, and quieter operation. Ergosync was brought in for turn-key design services, quickly producing detailed wiring diagrams, network reconfiguration drawings, installation instructions, and test procedures. They modified the existing PLC logic, process control loops, and helped the plant start the blower on schedule, securing the rebate. Ergosync also developed new graphic interfaces for remote control, alarming, data logging, and monitoring blower performance, and successfully established communication between the blower and the plant SCADA system, overcoming challenges with limited original manufacturer documentation.
Atlantic Bus Base Yard Refurbishment
Location: Seattle, WA
Client: King County Metro
Role: Project Management –
Project Controls
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King County Metro (KCM) is undertaking a $45M modernization and enhancement at the Bus Base. The upgrade will replace all concrete paving and underground infrastructure, including storm drainage, sanitary sewer, industrial waste, buried power lines, natural gas, water mains, and rehabilitating underground storage tanks. Additionally, the existing overhead catenary system will be upgraded to support KCM’s expanding electric trolley fleet. Ergosync provided comprehensive document control services, ensuring accuracy and organization by managing version control, facilitating the distribution of documents to project teams and stakeholders, and utilizing document management software for efficient tracking. Key responsibilities also included coordinating document distribution, ensuring compliance and quality control, generating reports, supporting team collaboration, and managing document archiving and retrieval, with a focus on continuous process improvements to enhance document management efficiency.
Active Traffic and Demand Management System Design
Location: Spokane, WA
Client: WSDOT
Role: Design – Commissioning
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The Spokane Regional Transportation Management Center operates the regional Advanced Traffic Management System 24/7, coordinating incident response teams, first responders, law enforcement, and maintenance crews. Operators manage various ITS devices, such as CCTV cameras, dynamic message signs, traffic measurement stations, and highway advisory radios, to monitor and optimize traffic flow. Additionally, they serve as the central hub for distributing traveler information through systems like the web, text/email alerts, and 511. Ergosync developed the System Requirements database and System Verification Plan for the upgraded ITS and witnessed its operational testing.
Tolt Reservoir FERC Security Improvements
Location: Carnation, WA
Client: Seattle Public Utilities
Role: Design
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As a result of Federal Energy Regulatory Commission (FERC) findings, the Tolt Reservoir Complex has been upgraded to a Level 1 Dam, necessitating physical security upgrades and significant enhancements to the Integrated Security System. Ergosync is providing the plans, specifications, and estimates for electrical systems, fiber optics, networking, surveillance cameras, ground radar, access control, and head-end system upgrades at 16 sites across the complex.
SR 710 Freeway Gap Study
Location: Pasadena, CA
Client: LA Metro
Role: Preliminary Engineering – Project Management
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The SR710 freeway in Pasadena has a 5 mile gap. To support the closing of this gap, LA Metro needed to expand the fire & life safety systems for twin bore tunnels. Ergosync managed the systems design team for the preliminary engineering and cost estimate for the freeway and light rail tunnel alternatives. Systems included fire detection, fixed fire suppression system, ventilation, electrical, communications systems and the control center. The team modeled and analyzed the design of the fixed fire suppression system to contain the maximum heat release rate. This included developing the tunnel fire response logic based on the positive alarm sequence method to avoid false activation of the suppression system. Ergosync’s team also designed the ergonomic arrangement of the operation and maintenance center control rooms based on IS0-11064 standards.
Eisenhower/Johnson Memorial Tunnel
Location: Georgetown, CO
Client: Colorado Department of Transportation
Role: Project Management – Design Management
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Ergosync managed the design and installation of the fire & life safety systems for the Eisenhower-Johnson Memorial Tunnel on I-70. The project included upgrading the fire detection, fire suppression, emergency ventilation and electrical systems.
East Link Preliminary Engineering & Design
Location: Seattle, WA
Client: Sound Transit
Role: Preliminary Engineering – Systems Design
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East Link extends Link light rail approximately 14 miles from downtown Seattle to Bellevue via I-90 and Mercer Island. The alignment includes the I-90 tunnels, bridges and aerial sections. During preliminary engineers, Ergosync served as the lead designer for the corridor-wide communications systems, overseeing interdisciplinary coordination, project management, and the development of communications systems for the 30% design phase. Later, during construction, Ergosync oversaw the design of the track bridge monitoring system for the I-90 floating bridge. This system monitors the custom track bridges that allow the transit system rails to be attached to the I-90 floating bridge. Based on CCTV analytics, the system will send alarms to the existing Sound Transit central control if abnormal conditions occur. The multi-sensor data units located at the track bridge are aggregated and analyzed and integrated with the general control system.
South Link Light Rail Project
Location: Seattle, WA
Client: Sound Transit
Role: Systems Design
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South Link extends Link Light Rail south 1.6 miles from Seattle-Tacoma International Airport to S. 200th Street on elevated guideway and a provided new station at 28th Avenue S. Ergosync designed the corridor-wide communications systems, overseeing interdisciplinary coordination, project management, and the development of communications systems for the 30% design phase.
Federal Way Link Extension
Location: Federal Way, WA
Client: Sound Transit
Role: Design – Build
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This project extends light rail from Angle Lake Station in the city of SeaTac to the Federal Way Transit Center. The 7.8-mile extension includes three stations and three garages.
Ergosync is serving as the Communications Systems design lead and Integration Manager. Work includes communications systems and building management system design. Integration management coordinates interfaces between all civil and systems disciplines.
West Seattle Link
Location: Seattle, WA
Client: Sound Transit
Role: Design
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The West Seattle Link Extension expands Sound Transit’s rail service to the West Seattle neighborhood, adding 4.1 miles of light rail from downtown Seattle to the Alaska Junction area. The project includes four new stations located between SODO and Alaska Junction, enhancing connectivity and accessibility for the region.
West Point Treatment Plant Grit Classifier Upgrade
Location: Seattle, WA
Client: King County
Role: Systems Design – Integration
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This upgrade project involved replacing the existing grit process with new grit cyclones, classifiers, and hopper gates, which required the development of a new instrumentation and control system. Ergosync provided electrical engineering services for the instrumentation and control systems needed to complete replacement of the grit classifier system. We integrated the grit vendor equipment into the existing plant process, ensuring both local and remote-control capabilities. We ensured the new system operated efficiently within the established plant sequence of operations and provided a reliable, fully integrated control solution.
LAMTA Gold Line
Location: Los Angeles CA
Client: LAMTA
Role: Design – Bid – Build
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Ergosync staff led the SCADA design for the Los Angeles Gold Line extension light rail project. Our responsibilities included design of the communication network and interfaces to traction power, signaling, fire and emergency management system, mechanical and electrical systems. Our engineers also designed the access control and intrusion detection system.
Alaskan Way Viaduct / SR99 Tunnel
Location: Seattle, WA
Client: WSDOT
Role: Commissioning
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The Alaskan Way Viaduct replacement tunnel, also known as the SR 99 Tunnel, is a bored highway tunnel in the city of Seattle, Washington, United States. The 2-mile (3.2 km), double-decker tunnel carries a section of State Route 99 (SR 99) under Downtown Seattle from SoDo in the south to South Lake Union in the north. Ergosync provided commissioning services for both the tunnel systems and building systems. Ergosync was selected by the Prime because of our expertise in tunnel systems.
South 188th Street Tunnel Upgrade
Location: Seattle, WA
Client: Port of Seattle
Role: Design
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The South 188th Street Tunnel is an important connection between the airport and the surrounding metropolitan area and is a key route for the Port, transit providers and local businesses. The upgrades on the tunnel include electrical, air quality monitoring, emergency ventilation, fire and & life safety systems to meet current code requirements. Ergosync led the design for the electronic system upgrades, providing comprehensive plans and specifications for the Port and GC/CM contractor.
I-90 Mt Baker Tunnel & Mercer Island Lid PLC Replacement
Location: Seattle, WA
Client: WSDOT
Role: Design – Systems Integration
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The I-90 highway in Seattle terminates with a floating bridge and two tunnels, both equipped with emergency ventilation, fire suppression, fire detection systems, intelligent transportation systems, traffic controls, and emergency backup power systems. The regional WSDOT traffic management center remotely monitors and controls these systems through a SCADA system built on six PLCs per tunnel. Ergosync led the integration for the complete replacement of these PLCs, upgrading 12 aging units with more than 3,500 I/O points and over 40,000 lines of logic. The project involved detailed wiring diagrams, PLC programming, and database development to ensure the system effectively manages fire and life safety systems, fans, lighting controls, power, and traffic signals. Ergosync provided all engineering services, including panel drawings, programming, documentation, testing, and commissioning.
Long-Range Fleet Strategic Plan
Location: Los Angeles, CA
Client: LA Metro
Role: Conceptual Planning
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LA Metro required a long-range strategic plan for its rail and bus fleet communications systems. Ergosync conducted interviews and site visits to assess the effectiveness of the existing systems, followed by an alternatives analysis and cost-benefit analysis to serve as the foundation for the strategic plan and concept of operations. Additionally, Ergosync developed a needs assessment report to inform the next steps in the planning process.
Tacoma Link Hill Top Extension
Location: Seattle, WA
Client: Sound Transit
Role: Construction Management
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Ergosync provided construction management support and inspection services for the Tacoma Link project.
Combined Command Control Center Generator Replacement
Location: Seattle-Tacoma International Airport
Client: Port of Seattle
Role: Project Management
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Ergosync provided project management for the replacement of the control system for the Combined Command Control Center (C4) generator and upgraded the installation to meet current NFPA standards. We facilitated project scope definition meetings with the Port’s maintenance staff and the Port fire department, initiated the studies to determine code compliance issues, and developed the scope, schedule and estimates for the project. Through our technical understanding of emergency backup power systems, Ergosync found ways to accelerate the design schedule by 12 months, lowering the project cost by $1M.
Operations & Maintenance Facility Central
Location: Seattle, WA
Client: Sound Transit
Role: Construction Management
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The Operations and Maintenance Facility Central was the first facility for Sound Transit’s initial Central Link light rail segment. It serves as the hub where light rail trains undergo cleaning and repairs 24 hours a day, 365 days a year, ensuring that thousands of passengers have access to clean, well-maintained trains. Ergosync provided Construction Management Services for this project.
University Link Light Rail Project
Location: Seattle, WA
Client: Sound Transit
Role: Systems Design
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University Link is a 3.15-mile light rail extension that runs through twin-bored tunnels from Downtown Seattle north to the University of Washington. Ergosync served as the lead for communications systems engineering design services for communications and controls.
SR520 Montlake Lid Design/Build
Location: Seattle, WA
Client: WSDOT
Role: Commissioning –
Systems Integration
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The SR520 Montlake project is a four-year reconstruction of the existing highway that adds a landscaped lid and reconfigures the Montlake Boulevard interchange for improved travel safety, traffic capacity and transit system integration. The project completes a regional, cross-lake bicycle/pedestrian path along the entire corridor, with connections to local trails on both sides of Lake Washington.
Ergosync is leading the integration and commissioning activities. Systems include traffic signals, intelligent transportation systems (ITS), CCTV, lighting, fire detection and suppression for the Montlake underlid, irrigation, electrical, and mechanical systems – all integrated with the WSDOT regional traffic management center.
Project Management Support Services
Location: Puget Sound, WA
Client: Sound Transit
Role: Project Management –
Project Controls
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The PMSS contract is an owner’s support contract to aid Sound Transit in its ST3 project delivery program, which will enhance regional transit connectivity and meet growing transportation demands in the area. Ergosync provides staff augmentation and plays a vital role in supporting schedule, risk, cost management and technical assistance. Leveraging our practical construction knowledge, we utilize leading analytics software to identify and mitigate schedule and cost risks.
Airport Dining & Retail (ADR)
Location: SeaTac, WA
Client: Port of Seattle
Role: Project Management
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The Airport Dining & Retail Program focuses on enhancing the overall passenger experience by developing new dining, retail, and service spaces. As a key partner in this effort, Ergosync provided comprehensive Project Management services for the construction and build-out of new retail spaces. Our responsibilities spanned the entire project lifecycle, including planning, coordination, budgeting, scheduling, quality control, contractor management, and communication. A critical aspect of our role was managing project risks to ensure that the retail spaces met tenant specifications, adhered to safety and code requirements, and were completed on time and within budget. Our contributions helped achieve the successful completion of the project, delivering functional and high-quality retail spaces that enhanced the overall success of the program.
City Center Connector Streetcar
Location: Seattle, WA
Client: SDOT
Role: Design – Bid – Build
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Ergosync led the systems design engineering services for the signaling, corrosion control and communications systems for the City Center Connector streetcar project. This project connects the existing South Lake Union and First Hill Streetcar lines with an alignment through downtown with stops in the historic Pioneer Square and Pike Place Market. This line also provides convenient access to light rail and commuter rail stations.
Central Link Light Rail
Location: Seattle, WA
Client: Sound Transit
Role: Design – Build
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Ergosync staff have been involved with Link Light Rail from the beginning. For the initial Central Link alignment, we provided communications and control systems design. During construction we provided construction management services until rail opening day. We also provided major design work for the communications systems and building management systems for all Link extensions including University Link, North Link, East Link and South Link. One of our significant contributions was the retrofit of the downtown tunnel where our personnel have extensive and special expertise with tunnel control systems and fire & life safety systems. We helped Sound Transit achieve final occupancy from the Seattle FireDepartment. We repeated this for the Hill tunnel. We also wrote the control system user manual and provided system operational training to the Seattle Fire Department.
South Park Water Quality Facility Upgrade
Location: Seattle, WA
Client: Seattle Public Utilities
Role: Design
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Seattle Public Utilities (SPU) built a new stormwater quality treatment facility as part of its on-going efforts to improve water quality. Simultaneously, SPU wanted to create a community facility and collaborated with the South Park Neighborhood to provide community input and art installations. Ergosync provided instrumentation and control system designs to monitor pollutant reduction throughout the water quality treatment process. The system was set up to monitor and trend key pollutants, including TSS, copper, phosphorus, and PCBs, ensuring that pollutant levels are effectively reduced over time. Additionally, historical data logging was implemented to track the long-term effectiveness of the treatment system, providing valuable insights into water quality improvement and supporting regulatory compliance.
Photo by: Joe Mabel
Operations & Maintenance Facility South DBPM
Location: King County, WA
Client: Sound Transit
Role: DB Project Management
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As part of the DBPM team, Ergosync prepared the project requirements for the systems at the new Operations and Maintenance Facility South, which supports the light rail extensions to Tacoma and West Seattle for Sound Transit. The 70-acre facility will operate 24/7, 365 days a year, with a staff of 600 providing storage and full maintenance for the growing train fleet. Ergosync’s work included requirements for systems such as network backbones, video surveillance, track intrusion detection, phone systems, access control, public address, wireless local area networks, and SCADA systems.
Merrill Creek Operations Base Improvements
Location: Everett, WA
Client: Community Transit
Role: Commissioning
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Ergosync led the commissioning of new facility systems for this $20M expansion and retrofit. The project includes an 18,000 square foot expansion for a bus body shop, break room, and hoist bays, along with the conversion of the existing body shop into full-service vehicle maintenance bays. Ergosync was responsible for commissioning systems such as lighting, HVAC, building management, access controls, pump stations, vehicle exhaust, and specialized bus maintenance equipment. Ergosync also wrote tests and checklists, witnessed functional performance testing, and provided the final commissioning report.
Main Terminal Low Voltage Design
Location: Seattle International Airport
Client: Port of Seattle
Role: Project Management – Design
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Ergosync managed the replacement of the low voltage distribution switchboards, transformers, feeders, panels, motor control centers and add tenant metering and 480-volt panel metering in the Main Terminal South Low Voltage Power Center. The project also included upgrading the South Main Terminal low voltage electrical system that serves multiple floors and areas within the airport. Ergosync oversaw all aspects of planning, coordination, budgeting, scheduling, quality control, contractor management, and communication throughout the project lifecycle.
West Point Treatment Plant Improvements
Location: Seattle, WA
Client: King County
Role: Systems Design
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When the plant was operating at a maximum capacity during a heavy rainfall in February 2017, a power failure resulted in catastrophic flooding of the plant. King County embarked on a project to upgrade the plant with a redundant passive bypass system to prevent the possibility of future flooding. Ergosync provided instrumentation and control systems design for influent channel revisions. New bubbler panels were designed, located and integrated into the existing plant systems and systemwide SCADA.
North Link Final Design Link Light Rail
Location: Seattle, WA
Client: Sound Transit
Role: Systems Design
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The North Link project extends Link Light Rail north from Husky Stadium to Brooklyn Station, Roosevelt Station and Northgate Station. As the Building Management System (BMS) design lead and project manager, Ergosync oversaw the development and integration of the BMS, which monitors and controls critical station facilities. These included HVAC, electrical systems, lighting, pumps, elevators, escalators, intrusion detection, stair pressurization fans, fire/smoke dampers, and irrigation systems. Ergosync’s responsibilities spanned systems integration, interdisciplinary coordination, and ensuring the successful completion of specifications and drawings for the BMS.
Wastewater Treatment Plant Modernization
Location: Edmonds, WA
Client: City of Edmonds
Role: Systems Design
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The City’s wastewater treatment plant secondary treatment process required an upgrade to the plant’s outdated control systems. The original Texas Instruments PLC, installed in the 1980s, were unreliable and needed replacement. The goal was to modernize the system and enhance overall operational reliability. Beyond controlling secondary treatment equipment, the PLCs were integral to the plant’s power infrastructure, interfacing with the primary power switchgear and the emergency engine generator. Ergosync developed comprehensive cutover and testing plans, I/O databases, wiring schematics, and PLC program conversion. During wiring cutover, Ergosync provided comprehensive assistance to the electrical contractor and plant operations staff.
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