Lower Don Valley Lower Don Valley The Lower Don Valley, or historically the East End of Sheffield, is the mainly industrial north-east quarter of Sheffield, England. Located on the River Don, it encompasses the areas of Attercliffe, Brightside, Darnall, Tinsley and Wincobank. The area became the heart of Sheffield's steel industry during the 19th and 20th century. However it went into decline during the 1970s and 1980s as the nature of steel manufacture changed from large industrial sites with large scale employment to more streamlined and automated manufacture. As a result, large areas were derelict by the end of the 1980s despite the
Don Valley Parkway this section travels north on Highway 404, but only two of the five lanes lead to it. The construction of the Don Valley Parkway was a major undertaking that changed much of the Don valley. While industrial areas existed both near the mouth of the Don River and the area of today's Leaside Bridge, several natural areas remained in those places where the steep sides of the valley had dissuaded large-scale urban development. The post-war growth period of Toronto provided an impetus to build a new automobile route into central Toronto, and the route through the valley was chosen to