Northwest Fisheries Science Center’s headquarters, the Montlake Laboratory, is located in Seattle, WA, near the University of Washington and was established in 1931 as the first government laboratory dedicated to the study of living marine resources on the West Coast. The Montlake Laboratory houses the leadership of the Center and laboratories for chemical testing of seafood following oil spills. It hosts stock assessment scientists who model West Coast federal fisheries, geneticists determining population structure of Pacific salmon and West Coast groundfish, and responds dynamically to emerging research needs such as climate change and ocean acidification, integrated ecosystem modeling, socioeconomic connections, and biological effects of emerging toxins.

Ahtna Environmental, Inc. (Ahtna) has provided design/build construction services to the renovation of the Montlake Construction Facility since 2014. This overall effort included concurrent construction tasks for multiple components and locations at the facility. The overall project included the following tasks:

  • Design-build of the PVC roof replacement for the South, West, Central, and East Buildings., including all ancillary features of the new roof.
  • Design-build of the complete HVAC system replacement at the South Building, including an engineering analysis of the zoning requirement of the two-level building.
  • Design-build of the Air Conditioning (A/C) replacement for East Building freezer room (for laboratory samples) with a critical free-cooling component.  The design and construction also included electrical upgrades, commissioning, and test and balancing of the new system.
  • Design-build of a new variable air volume (VAV) A/C system for Room 317


National Oceanic and Atmospheric Administration (NOAA)






Seattle, WA