King County plans to site a new storm water treatment plant in the Duwamish area to improve the water quality and control the frequency of CSO events in the Brandon and Michigan basins. The key objective of this project was to determine to best possible alternative for conveyance routing and treatment station siting while reducing CSO frequencies.

UrbanTech has provided engineering services to assist with the analysis of 5 alternative treatment site locations and 3 alternative outfall locations.  Our analysis assistance included combined sewage conveyance alignments and diversion locations for 5 alternate treatment station siting locations.  UrbanTech is currently working on the site Demolition and conveyance 30% designs.

Seattle Department of Transportation, working with several other City of Seattle departments is planning for the eventual removal of aging transportation viaduct along the Seattle waterfront. In July 201 The City of Seattle released a Concept Design, Framework Plan and Strategic Plan in July 2012 to capture the overall vision for the waterfront. The Office of the Waterfront is delivering that vision in the form of the Waterfront Seattle Program. This vision includes 3 separate but related capital projects that started with construction of a new Elliott Bay Seawall as the foundation of the central waterfront. The replacement of the viaduct will be accomplished with the construction of a 54 foot diameter transportation tunnel. In 2015 and 2016 the program will focus on completing design for the first projects to be constructed after the seawall is built and the Alaskan Way Viaduct is removed. These Central Waterfront projects include a new Alaskan Way, a public promenade along the waterfront, and improved east-west connections to link the center city to the waterfront.

UrbanTech Systems has worked as part of the Central Waterfront area utility masterplanning effort for these massive undertakings. Our work included working with multiple branches of the City’s infrastructure departments, including: Seattle Public Utilities,  City Light, DoIt and private utilities such as Seattle Steam, Puget Sound Energy and CenturyLink. As part of the team UrbanTech assisted the preparation of  the existing utility report; the 13.8 KV schematic design; Puget Sound Energy design coordination; and the Joint Communications Duct Bank design

This project included the construction of approximately 13 miles of large diameter tunnels from the new BrightWater Treatment Plant to Puget Sound. It included the construction of a 130 MGD pump station, six reaches of micro-tunneling, facility upgrades for county distribution of reclaimed water and various odor control facility upgrades and new facilities. UrbanTech performed the duties of third party coordination which included permitting and easement management, environmental compliance inspections and coordination with multiple county, municipal and regulatory agencies.

The Rainier Valley segment of the Link Light Rail system is an at-grade segment of the system that links the Beacon Hill tunnel portion with the elevated segments that makes its way to Tukwila and ultimately the Seat-Tac Airport segment of the system. The initial Link Light Rail system stretches for 14 miles from downtown Seattle to Tukwila, Washington.

Early on, the Rainier Valley segment was identified as one of the most difficult segments of the system to build. It is one of the only reaches that is at grade and is positioned along one of the city’s major traffic corridors. This segment has enhanced the quality of the surrounding neighborhoods which is historically known to be the most ethnically diverse area and home of a large portion of the city’s immigrant population.

UrbanTech’s responsibilities included project cost engineering for change management, document management, and administrative assistance to control contractor correspondence, interface with Sound Transit’s Live Link document control system, and Expedition document management.