Akutan Harbor Road
Conducted a comprehensive geotechnical
evaluation of the proposed road alignment to connect the Native Village of
Akutan with the new small boat harbor (currently under construction at the head
of Akutan Bay). The remoteness and steep
topography of Akutan Island required NGE-TFT to employ less traditional
exploration methods including ground-penetrating radar and portable hand
augering to evaluate bedrock depths and overburden thicknesses. Subsurface and material information obtained
by NGE-TFT, as well as past experiences with construction practices on the
island, helped to guide road design and result in the overall shortening of the
road alignment, saving the project considerable construction cost.
Alaska DOT Jim River Maintenance Facility
NGE-TFT conducted a geotechnical evaluation of
the site to characterize subsurface conditions (which included ice-rich
permafrost) and develop foundation recommendations for the proposed
structure. As a part of the foundation
design effort, NGE-TFT conducted a transient thermal analysis to model the
effect that the proposed building could have on the existing permafrost and to
evaluate the potential effectiveness of proposed foundation refrigeration
systems and insulation in preserving the existing permafrost beneath and
adjacent to the proposed structure.
Bethel Readiness Center
NGE-TFT conducted a geotechnical evaluation of
two separate sites to characterize subsurface conditions (which included
marginal/warm permafrost) and develop foundation recommendations for the
proposed structure. As a part of the
foundation design effort, NGE-TFT conducted thermal monitoring at the selected
site to evaluate the condition of the permafrost.
