Client: Seattle Public Utilities
Location: Seattle, Washington
2022 - In Progress

KBA is providing construction management services this $5 million project that constructs natural drainage systems (NDS) at three sites in the Longfellow Creek basin. Natural Drainage Systems are built in the roadway shoulder (the space between the street edge and the property line) and are filled with deep-rooted plants and spongy soils that temporarily hold and clean polluted stormwater from streets and sidewalks before the stormwater enters our waterways. It will also provide pedestrian improvements at 24th Ave SW between Thistle and Barton streets and at the SW Kenyon St pedestrian bridge at 24th Ave SW. In addition, this project adds artwork at the SW Kenyon St site. The artwork along with the pedestrian improvements and new natural drainage systems were designed to create space for the community to connect with neighbors and the surrounding habitat.

Client: Seattle Public Utilities
Location: Seattle, Washington
2020 - In Progress

KBA is providing construction management services under an on-call contract for sewer projects that include the rehabilitation of 131 existing storm and sanitary sewer segments, with diameters ranging from 8 inches to 36 inches, via cured-in-place pipe (CIPP) installation method with fiberglass lining installation with curing by ultraviolet light; and replacement of 1,300 LF of existing 8-inch, 15-inch, and 24-inch pipes with new vitrified clay pipe (VCP) via traditional open-cut construction methods.

Client: City of Oak Harbor
Location: Oak Harbor, Washington
2015 - 2021

KBA provided construction management and inspection services for this $150 million heavy civil GC/CM project that replaced two aging wastewater treatment facilities with a new clean water treatment facility that meets modern standards for reliability and performance. This project provided the construction of a new membrane bioreactor (MBR) facility to replace the City’s existing facilities (lagoon and rotating biological contactor), providing continued reliable wastewater service to the community of Oak Harbor while protecting and preserving the surrounding environment (Puget Sound, Oak and, Crescent Harbors).

Client: City of Port Angeles
Location: Port Angeles, Washington
2014 - 2017

KBA provided office engineering services for the $14.9 million Phase 2 CSO Project that was a part of the City’s approved CSO Reduction Program. The project increased flow conveyance capacity in the mainlines from downtown to the existing wastewater treatment plant to accommodate peak flows from storm events; increased the capacity of the treatment plant; utilized an existing above-ground storage tank to store excess flows; and increased the capacity of the treatment plant outfall system. Elements of the work included construction of an above and below grade pump station building for housing various mechanical, process, and electrical equipment; piping systems; new gravity sewer and storm drain; replacement of sidewalk, curb, and road surfaces as required; and traffic control.

Client: Seattle Public Utilities
Location: North Bend, Washington
2015

KBA provided construction management and inspection services for this $16.3 million project, located entirely within the secured Cedar River Municipal Watershed. The facility improved water transfer from Chester Morse Lake into the lower watershed, thereby providing the capability to meet water system demands and in-stream flows during dry conditions. KBA successfully met project challenges including completing all work while maintaining a fully operational water supply reservoir, with emphasis on worker safety and water quality protection.

Client: Seattle City Light
Location: Diablo, Washington
2015

KBA provided construction management services on this $3.3 million project. KBA inspected septic tanks as they were delivered to the site, inspected all rough-in plumbing installed in all houses in the Diablo “Hollywood” community, and inspected installation of electrical receptacles/conduit installed in individual houses and for tank systems. The houses and buildings in the Diablo community originally sent their wastewater to an aging wastewater treatment plant. This project replaced the conveyance and wastewater treatment plant with an on-site tank farm and individual septic tanks.

Client: Seattle Public Utilities
Location: Ravensdale, Washington
2014 - 2015

KBA provided construction management and inspection services for this $6.9 million project that constructed a new 4,500 SF Operations Center Building with control room, locker rooms, offices, and water lab. The project also replaced the existing chlorine gas system with a liquid sodium hypochlorite system. Work included a new antenna tower, foundation, grounding system, and antenna system; upgrade of the supervisory control and data acquisition monitoring system; and construction of new concrete drives, pervious concrete parking area, and turf overflow parking.

Client: City of Oak Harbor
Location: Oak Harbor, Washington
2013 - 2014

KBA provided construction management and inspection services for this $4.8 million project to construct a 4-million-gallon welded steel reservoir. Work elements included clearing and grading the project site; construction of a storm drainage collection system, detention piping, and a drainage ditch/bioswale; pervious asphalt access road and site parking; pressure-reducing valve station; and connection to existing waterlines. KBA staff’s experience with tank projects and understanding of the client’s risk on this project gave them the opportunity to be proactive during tank construction.