From 1958 onward, and as the city became more industrialized in the 1960s, the polluted stream and its Bridges were gradually buried under at-grade asphalt and a four-lane elevated freeway.

自1958年来，20世纪60年代城市工业化程度日益提高，污染的运河和桥梁逐渐被柏油马路和4车道的高架高速公路替代。