Mudge's most notable improvement was the construction of “The Round House”. This three-story pagoda tower was built on the edge of Second Island, with half its foundation on island soil and the rest projecting over the river. During the construction, he kept the purpose of the unusual structure secret. This caused much speculation in the local community. Mudge eventually revealed that it was designed to have the second story rotate at a slow speed, while the third story rotated faster and was topped by a centrifugal swing that would whirl the adventurous rider out over the river.
Mudge's most notable improvement was the construction of “The Round House”. This three-story pagoda tower was built on the edge of Second Island, with half its foundation on island soil and the rest projecting over the river During the construction he kept the purpose of the unusual structure secret This caused much speculation in the local community. Mudge eventually revealed that it was designed to have the second story rotate at a slow speed, while the third story rotated faster and was topped by a centrifugal swing that would whirl the adventurous rider out over the river.