Client: Seattle Public Utilities
Location: Seattle, WA
2024 - Present

KBA is providing construction management and inspection services for a $6.5 million project at seven different sites in Seattle. The work involves
abandoning existing water mains in place and installing new ductile iron
(DI) water main pipes, ranging from 4” to 20”, using the open-trench method. The project also includes installing valves, fire hydrants, and vaults, along with storm and sewer improvements. KBA is assisting SPU Water Operations with cutting, capping, and blocking existing water mains, as well as temporary and permanent water main connections and service connection transfers. The final phase involves surface restoration of roadways and landscaping, including ADA curb ramp improvements.

Client: Seattle Public Utilities
Location: Seattle, Washington
2023 - Present

KBA provides construction management and inspection for the $3.1 million Cedar River Upper Royal Arch Habitat Enhancement Project, which enhanced the habitat and floodplain of the Cedar River in Maple Valley, WA. The project involves road and utility relocations, removal of structures and bank armor, and the construction of flow-through side channels and floodplain enhancements. It includes large wood placements for habitat improvement, bar-apex log jams to manage flow and sediment, and vegetation work to remove invasive species and plant natives. KBA oversees traffic control, TESC, and coordination with stakeholders to support successful project outcomes.

Client: City of Kenmore
Location: Kenmore, Washington
2023 - 2024

KBA is providing construction management and inspection services for this $2.5 million project that replaces the existing 4-foot-wide corrugated steel pipe culvert with a 60-foot-long, 15-foot-wide by 12-foot-high three-sided box culvert, sidewalk, and wall replacement along 61st Avenue NE, re-routing of existing water and gas, replacement of existing sewer, roadway restoration stream restoration, and wetland mitigation. The added volume of water this culvert can now accommodate requires the fortification of the channel to include enhanced landscaping techniques, a rockery wall, and a soldier pile wall.

Client: Seattle Public Utilities
Location: King County, Washington
2022 - 2023

KBA provided construction management services for this phase of the $8.4M project consisting of existing buried revetment removal, new revetment construction, site grading, in-water Engineered Log Jams (ELJ), floodplain restoration, new planting, and new habitat features for salmonoid species. Also, part of the project is construction and armoring of the new CRT2 trail, which consists of a total of 7 ELJs, 8 habitat features, coir lifts, and planting. Side channels 1, 2, 3, and 4 were graded and ELJs/habitat features were installed.

Client: City of Sammamish
Location: Sammamish, Washington
2021

KBA provided construction management and inspection services for a project that upgraded two 30-foot culverts to a 50-foot-long precast concrete culvert, enhancing fish habitat by rebuilding the stream, relocating utilities, installing manholes, and adding habitat features like logs and boulders. The project also included installing a storm catch basin, paving with a 12-inch concrete slab topped with HMA, and landscaping. Early in the project, oil-contaminated soil was discovered during the water main relocation, leading to a monthlong excavation and disposal effort. KBA tracked the time and costs for this unexpected work separately, saving the City approximately $15,000 through careful review of the force account sheets.

Client: Stilaguamish Tribe of Indians
Location: Snohomish County, Washington
2020 - 2021

KBA is provided construction management and inspection services for this fish enhancement project where Kackman Creek runs beneath 55th Avenue NE. Services originally included project inspection and documentation but expanded to include oversight and management of the client’s consultant team, including the EOR/designer, geotechnical, and environmental consultants. The project replaced an existing 48-inch culvert with a 110-foot bridge and enhances the creek’s riparian zone. Specific elements included driven piles; concrete columns, abutments, girders, and deck; soldier pile retaining walls concrete fascia; earthwork; and plantings.

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: US Department of Transportation
Location: Darrington, Washington
2018 - 2019

KBA developed a Quality Control (QC) Plan and provided QC Manager Services for this $2.2 million project to repair 17 individual US Forest Service roads, near Darrington, WA. Sites had been washed out or otherwise rendered impassable. General repairs included installation of upsized corrugated metal culverts/large arched culvert, and backfill with available near-site granular materials. Installation of concrete, riprap, and woody debris was also included in the work.