Construction Services

Haskell Indian Nations University

Sealaska Constructors has been providing design and construction support to the Bureau of Indian Affairs at Haskell Indian Nations University in Lawrence, Kansas, since 2020. To date, we have delivered $32M in construction across more than 30 buildings and outdoor sports and recreational facilities at the university. The work has primarily been by the design-build construction method and has included demolition, new construction, exterior envelope repairs, site improvements, interior finish replacement, ADA upgrades, hazardous materials abatement, HVAC, plumbing, electrical and safety and security upgrades across the entire school. The overall campus improvements provide a healthy, comfortable learning environment for Indigenous students who attend the university.

Pearce Creek Confined Disposal Facility

After the U.S. Army Corps of Engineers identified problems with groundwater in the vicinity of the Pearce Creek Confined Disposal Facility, the Corps hired Sealaska Constructors to construct an impermeable barrier within the entire disposal site to seal its contents off from local groundwater. The project required relocating a sluice and piping, installing a temporary dike and building a new one in order to line the 300-acre site, which has received maintenance dredge sediment from Chesapeake and Delaware Canal channels along Chesapeake Bay in Maryland.

Our work, alongside subcontractors, will prevent any further impacts to the groundwater system.

Site Prep for Autosonde

The National Weather Service engaged Sealaska Construction Solutions to assist with installation of meteorological sensors at locations in Alaska and nine other U.S. states, from New York to Hawaii. We performed site surveys and design in support of construction for concrete pads and utility infrastructure to enable erection of Automatic Radiosonde Observation Systems (AROS) and sensor towers. The initial contract award was for design and survey, with modifications issued for construction on a site-by-site basis. The last contract was completed during the COVID-19 pandemic, requiring our teams to overcome unique challenges with personnel accessing sites.

Glines Canyon Boulder Removal

After the 2014 demolition of the Glines Canyon dam on the Elwha River in Washington’s Olympic Peninsula – a removal initiated primarily to restore one of the most prolific salmon runs on the West Coast – salmon had a new challenge. During and after the demolition of the dam, the sediment and debris released had built up behind several massive boulders, raising the river floor 25 feet above the historic level and creating a blockage for spawning salmon and steelhead at low flows. The National Park Service hired Sealaska Constructors to remove the boulders in the 200-foot-deep canyon. We worked with an expert team of blasters, river rafting guides and mountaineering guides to do the work in the remote location. Through a series of remotely triggered blasts, the boulders were reduced to a size small enough to clear the passage for future upstream salmon migration.

Charley Day Spring Dam Rehabilitation

Sealaska Constructors provided construction services to the Bureau of Indian Affairs Dam Safety Division with this rehabilitation project in the heart of the Navajo Nation. Before work could commence, Sealaska Constructors’ subcontractors performed a study of invasive plants and provided ornithological investigation to confirm there would be no impact to avian migration of protected species within the project area. The work consisted of clearing and grubbing, invasive plant removal, earthwork and concrete placement to double the size of the existing spillway and stabilize the dam embankment to prevent future erosion.