San Marcos CISD is set to begin construction of four major building projects in October.

The district is accepting bids until Oct. 1 to build a new athletic stadium and activity center for San Marcos High School at a cost of $28 million. The board of trustees will vote to hire a contractor for the projects Oct. 7, school officials said.

"We're right on target," Superintendent Mark Eads said. "Everything's going exactly as planned."

For $15 million, the district is also seeking a contractor to build a prekindergarten facility and Phoenix campus. The bidding process will close in mid-October, and trustees are scheduled to hire a contractor Oct. 21.

Phoenix is an alternative high school program that will have the capacity to serve 250 students.

The district will build its first prekindergarten campus for 600 students on the site of the Old Bowie Elementary School on Hwy. 123. Plans for the facility include 27 classrooms, computer labs and a music room. Although most of Bowie's old facilities are being demolished, the district plans to renovate and repurpose the cafeteria.

San Marcos CISD voters approved the construction projects during a bond election in May. The district's architect estimates construction will finish before the beginning of the 2014–15 academic year.

Renovations and additions for elementary school, middle school and support services are scheduled to begin early next year. For construction updates, visit www.smcisdbond.com.