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Welcome to the Mercer Island High School Construction Page

Mercer Island High School was built in 1954. Since 1954 MIHS has been through a several small and large scale modernizations and renovations. In 1957 a large multipurpose building was built which housed a cafeteria and student center until it as demolished in the 1997 remodel and addition. More classrooms and auditorium spaces were added to the high school in 1961 and again in 1967. Smaller additions and renovations occurred to the campus in 1978 and in 1986. 

In 1997, designed by Erickson McGovern and Mahlum Architects, a larger scale remodel took place uniting all of the buildings that comprised the high school campus under one roof. The building that is now home to the alternative high school, Crest Learning Center, was also renovated.
After the 2014 and 2015 additions to MIHS designed by Mahlum Architects, the school is now equipped with state of the art science and robotics labs, a large modern wing for the school music department, and additional classroom and bathroom spaces. After the most recent classroom additions, the building is currently 225,000 sq.ft. and has over 1,350 students in attendance.
Please refer below for a general timeline of all of the projects as well as a few buttons that expand with more information and photos of the renovations. 

2013 Stadium Press Box

2013 iGrant Boiler and Lighting Improvements  

2012 Music/Band Addition  

2011 Track Replacement  

2011 Training Room 

2010 Gymnasium and Commons High Efficiency Lighting Replacement  

2009 Turf Replacement

2001 Synthetic Turf Installation

1997 Crest Learning Center Remodel

1997 Addition and Modernization

1986 Renovation  

1979 Rubberized Track Addition and Field Renovation 

1978 Renovation

1967 Classroom and Auditorium Expansion

1961 Classroom, Art, and Auditorium Addition 

1957 Addition