The start of construction of the new 100 Building at Bainbridge High School may be pushed back.

The Bainbridge Island School Board will consider a request at its meeting this week to extend the timeline for construction of the new building.

District officials had earlier expected to apply for building permits for the new 100 Building in late 2018, and have permits in hand so construction could begin in the spring of 2019.

That timeline envisioned construction continuing through 2019 and wrapping up in July 2020. The new building would be ready for use when school starts the following year.

According to that earlier project schedule, schematic design of the 100 Building would start this September and be finalized in early 2018. The city’s review of the building plans was expected to start this November and stretch through October 2019.

But now — with rapidly escalating costs for construction projects being felt throughout the Puget Sound region, and questions surrounding the future of the district’s Options Program and Commodore building (which sits on school district property that has been eyed for a new 100 Building) — Bainbridge High’s steering committee is recommending an adjusted timeline that will push off completion of the project.

The 100 Building construction project will be paid for as part of the $81.2 million bond package that was passed by Bainbridge voters in 2016. Approximately $30 million of the bond proceeds were expected to be put toward the new facility to replace the 1970-era current building, which houses Bainbridge High’s career technical education programs. The 2016 bond measure also promised to bring a new Captain Johnston Blakely Elementary School and other improvements to district buildings island-wide.

The Bainbridge school board will get a briefing on the new timeline at its meeting this week.

The school board meets at 5:30 p.m. Thursday, July 27 in the board room on the Commodore Campus.