Construction is ongoing at the Pittsburgh-Butler Regional Airport on Thursday morning. Shane Potter/Butler Eagle

Excavation work visible recently at the Pittsburgh-Butler Regional Airport in Penn Township will result in upgrades at both the airport’s offices and Serventi’s On The Runway restaurant on the second floor.

A hillside on the east end of the building is being removed by heavy equipment, which will make way for construction there.

Michael Biggs, airport manager, said the new public water line was connected to the building on Wednesday, which eliminates the necessity for the multiple wells that were previously used at the airport.

The new Water Authority of Adams Township public line will allow for more reliable water service, including supplying sprinklers in various buildings and hangars.