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 valley, which replaced the 'north' arm of the previous Don Valley roadway project, and the realignment of Lawrence Avenue over the East Don River. The design for the section north of the Don River mouth incorporated the existing river-side Don Roadway on the east side of the River. The design also incorporated a section of the old Don Mills Road leading up from the River, north of Gerrard, to Broadview Avenue and Danforth Avenue into the highway as a northbound on-ramp from Danforth. The project was designed to carry 60,000 vehicles per day. Fenco-Harris designed the route to be "located