Digest>Sep/Oct 2013
Photo By:
David Cooper
Photo Caption:
To stabilize the crumbling footings of the historic Devils Island Lighthouse, devices called ‘micropiles’ were drilled in the ground to pin or attach the tower to the bedrock. Following this, new concrete footings were poured. Back to the edition of: Sep/Oct 2013
Story:
Saving Wisconsin’s Apostle Islands Lighthouses
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