Work to improve the athletic fields at Williamsville East and Williamsville South high schools is progressing on schedule, officials said this week.
But that timeline could be in jeopardy because the soil at Williamsville South High School is too wet to support the base and drainage system of the new turf track and field, Superintendent Scott Martzloff said.
"It's projected that both of our sites will be ready and complete in September, with the exception possibly of the track at South High School," he said. "We may need to wait and finish that in the spring of 2018. We're pleased with the progress."
Construction crews are able to wait for the first two weeks of April to see if the soil dries out, but waiting any longer would result in delays.
The School Board also approved a change order authorizing up to $300,000 for removal of the "unsuitable" soil and replacement with crushed stone, if necessary.
"We do have some unsuitable soil materials that need to be addressed," Martzloff said. "But other than that we're completing work on schedule and excited to finish in September."
At Williamsville South, the district is adding one synthetic turf field and building a new stadium with bleacher capacity for 2,700 people.
Other enhancements include new track and field stations, scoreboard, sound system, ticket booth, security fencing and five new tennis courts.
The School Board in March approved spending up to $295,000 for additional unexpected rock excavation at Williamsville South, but that work is expected to cost $139,000, officials said Tuesday.
The work is part of a $22.4 million athletic field improvement plan approved by voters in May 2015. The turf athletic field at Williamsville North High School was installed last summer.