The Paddock Chevrolet Golf Dome should reopen in November but its reconstruction will cost more than anticipated.
The Tonawanda Town Board on Monday voted to borrow an extra $500,000 beyond the $2.5 million approved in January.
Officials previously said the work — including replacing the inflatable fabric dome and the driving range's artificial turf — would cost around $2 million.
But they needed to cover overruns.
The original 1999 covering was damaged during a 2002 ice storm and its 17-year-old replacement has reached the end of its shelf life. Crews deflated the dome in June.
The town has since learned it must replace heating and inflation units and wind and snow sensors, along with support anchors and steel beams that would take too long to clean, treat and replace, Mark Campanella Sr., superintendent of Youth, Parks and Recreation, said Monday. The expected cost now is closer to $2.5 million, Councilman Daniel Crangle said.
Campanella said the project is on track for the dome to be reinflated in October, with interior work to be finished soon after.