In July 2011, Sheehan received an award as a Leader in Public Policy from Politics In Minnesota/Capitol Report as the Top Legislative Staffer at the Minnesota State Capitol.
Various portraits of state governors, and flags captured by Minnesota's regiments during the American Civil War, are on display.
Major InterDesign projects include: the identity programs and signage systems for the Minneapolis Parkways, the downtown St. Paul Skyways, the Minnesota State Capitol and the Minnesota Zoo.
As a muralist, he completed projects for the Library of Congress, the American Museum of Natural History, the Minnesota State House of Representatives, and other locations.
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The Gusvald Aus Company completed the engineering work for a number of projects including Harkness Memorial Quadrangle at Yale University, the Minnesota State Capitol in St. Paul and the Library building at Northwestern University.
His sculptures at the Minnesota State Capitol include the Knute Nelson Monument and Leif Erikson on the capitol grounds, and General John B. Sanborn and Colonel Alexander Wilkin in the rotunda.