Improvements to update Dublin Coffman High School's library that were slated to begin this summer have been postponed.

A first phase of construction done last year made the library ADA accessible, and future improvements were expected to update the furniture, layout and technology to allow for creative maker spaces and a media center.

The project, however, was put on hold in favor of other districtwide infrastructure projects the district's administration deems as more pressing.

District officials said future funding for the Coffman library could come from existing funding or it could be part of a bond issue request.

Jeff Stark, director of business operations, said the Coffman library's first improvement phase -- about $214,000 -- had two pragmatic pieces.

The ADA compliancy was necessary, as was a new storefront glass window with double doors, which made the space better for holding student testing.

The second phase would be more expensive than the first and mostly cosmetic, Stark said.

Funding for the first phase of the project came from the district's 2012 bond issue. In 2012, Dublin City School District residents approved a combined $15.87 million bond issue and 6.4-mill levy issue.

But money from that bond issue is now mostly exhausted, Stark said.

The district also had a list of necessary districtwide improvements.

Between late 2015 and early 2016, the district hired Schorr Architects and Garmann Mille Architects to conduct infrastructure assessments for K-12 buildings, Stark said.

An assessment also was done for middle and high school athletic upgrades with the goal of creating equitable athletic experiences across school buildings.

This summer, the district will spend about $3.5 million on repairs, Stark said. Of that total, $1.5 million is for heating, ventilation and air-conditioning systems. Funding comes from the district general fund.

Coffman is slated to receive roughly $700,000 in summer improvements, which includes two new air conditioners, water pipes and a resealed parking lot, Stark said.

"Coffman needs more work than any other school in the district," he said, because the building, which opened in 1972, is the district's oldest high school.

Coffman Principal Mike Ulring said the library's furniture dates to the late 1980s. And, although he acknowledged prioritizing improvements is necessary in a large district, he said he has for years wanted to update the library.

He estimated, based on the first phase of architecture a year earlier, that remaining improvements would cost between $600,000 and $700,000.

Ulring said part of his job is to create up-to-date and accessible learning environments at Coffman.

"We just want to make it better," he said.