206-621-1810 info@neudorferengineers.com Home About Us Services Projects Contact Us WSDOT I-90 Tunnels Two-Way Transit & HOV Operations Stage 3; Testing, Adjusting, & Balancing and Commissioning Commissioning, TAB Testing, Adjusting, & Balancing (TAB) and Commissioning (Cx) of site improvements to the existing Inter-state route I-90 eastbound & westbound roadways, bridge, Mercer Island tunnel, and Mount Baker tunnel in Seattle, WA. The two tunnels remained open to traffic with scheduled traffic closures during critical activities, cutovers, and tests. Within this section of interstate I-90, over 150,000 cars travel each day. Existing supervisory control and data acquisition SCADA systems were updated & centralized, including new programmable logic controllers (PLC) and human machine interface (HMI) devices. Testing, Adjusting, & Balancing (TAB) of emergency egress fans and generator exhaust fans per Washington state energy code (WSEC) requirements and NEBB TAB standards, including design review, submittal reviews, coordination meetings, TAB surveys, TAB agenda submittals, incorporation of TAB activities into project schedule, observation of deficiencies, commissioning coordination and back check, and submission of TAB final reports per building. NEI TAB team coordinated with maintenance staff and contractors to fast track repairs, sheave changes, belt changes, motor replacements, and system adjustments on existing and renovated systems to maintain project schedule. Commissioning services included design review, sequences of operations review, submittal reviews, coordination meetings, site visits, witnessing electrical equipment testing, witnessing mechanical equipment startups, writing and execution of Pre-Functional and Functional test reports, back check of testing and balancing, and tracking of observed deficiencies into project deficiencies log until closure. Engineering duties included RFI coordination, budget control, scheduling, witness of Owner training, and review of O&M manuals. Commissioning scope included installation verification and functional performance testing of site improvements to Electrical (Medium Voltage), Roadway Lighting, Roadway Signage, Roadway Fire Suppression & Alarm, Infrared Cameras, & Heat Fiber Cables, Roadway Drainage, Smoke Evacuation Fans (200,000 CFM), & Integration of SCADA, closed circuit television (CCTV), Fire Alarm, & Fire Suppression systems. Categories Building Enclosure Testing Commissioning Re-Commissioning Retro-Commissioning Smoke Control TAB Recent Posts P920 Bachelor Enlisted Quarters; Building Enclosure Testing and LEED Enhanced Commissioning WSDOT I-90 Tunnels Two-Way Transit & HOV Operations Stage 3; Testing, Adjusting, & Balancing and Commissioning Shell Oil Laboratory; Testing, Adjusting, & Balancing and Commissioning Town & Country Market Winslow LEED Fundamental Commissioning Alley 111 Apartments LEED Enhanced Commissioning WEB MAILAIRNABLOGIN © 2021 Neudorfer Engineers, Inc. | Designed By Zephyr Webpages