The district posts all construction RFP's on the state's "Buy Michigan First" school entity bid list. You can find that page here:

http://www.michigan.gov/budget/0,4538,7-157-79033---,00.html

Network Electronics (released 2/2/2018)

Structured Cabling (released 2/2/2018)

C1 Network Electronics (released 2/2/2018)