BUTLER â Itâs every little boyâs dream to play with construction toys and dig in the dirt. A work crew from Bowen Engineering must be having all kinds of fun as they are in the midst of installing 60-inch pipes at the east end of Butler â sometimes in the pouring rain. This $8 million project isnât just for fun, however. The goal is to help the city solve a long-standing issue of combined sewer overflow events. The work will take a year and a half to complete, interim Wastewater Superintendent Scott Lanning explained, adding the project is on schedule. Donohue & Associates is the engineering firm for the project. Bowen Engineering is handling the construction side.