Boston school officials are planning to build or extensively renovate a dozen schools, gradually phase out middle schools, and merge several elementary schools over the next decade, under a proposal being presented to the School Committee Wednesday night.

The most immediate actions call for closing two high schools in West Roxbury — Urban Science Academy and West Roxbury Academy — in June, due to deteriorating building conditions that almost prevented them from opening this September, interim Superintendent Laura Perille said Tuesday.

The proposal is the most comprehensive to be released under Mayor Martin J. Walsh’s four-year-old BuildBPS plan, which aims to spend $1 billion in city and state funding to overhaul the city’s 125 schools. That effort includes a new Boston Arts Academy in the Fenway, which Walsh broke ground on Tuesday.

Read the full article on the Boston Globe website.