 It turns north onto Reaker Road and then west onto Netherby Road to end at an at-grade intersection with Highway 140.Highway 58A was established during the 1970s following completion of the Welland By-Pass project of the Welland Canal and Highway 140.Initially envisioned as the southern terminus for Highway 406, the planned route first appeared on the Official Ontario Road Map in 1971, though it had been proposed since the release of Niagara Peninsula Planning Study in 1964.