INVITATION TO BID: BESC SPRINKLER UPGRADES 2016-2052 PORTLAND, OR Bids due: June 9, 2016 @ 2:00 pm Portland Public Schools, School District No.1J, Multnomah County, Oregon seeks responses from qualified firms for provision of sprinkler upgrades at BESC. Experienced firms are invited to submit a bid for consideration by the District. The Invitation to Bid …