Land Use & ZoningIntermediateAlaska Exam

Permafrost considerations in Alaska often affect building codes and land use in that construction on unstable permafrost may require:

AAutomatic rezoning to open space
BSpecial foundation design such as pile foundations or elevated structures to prevent thawCorrect
CFederal Environmental Impact Statement review before any construction, under this approach
DANCSA land use approval before permits can be issued

Why Special foundation design such as pile foundations or elevated structures to prevent thaw Is Correct

Answer B: Special foundation design such as pile foundations or elevated structures to prevent thaw

Building on permafrost in Alaska requires special engineering to prevent the heat of the building from thawing the permafrost and destabilizing the foundation. Common solutions include pile foundations (driven into stable permafrost), elevated structures with ventilated crawl spaces, and refrigerated foundations in critical cases.

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