A spokesperson for Don Catchment Rivers Trust said the work “removes the first and perhaps the biggest barrier to fish and wildlife passage into the Sheaf and Porter system”.
Another image shows an embankment slide for children to enjoy the new landscape and a new footbridge to allow walking, wheeling and cycling access to the park from Exchange Street.
Simon Ogden, chair of the Sheaf and Porter Trust, described the new images as an “exciting vision” which had emerged from a “collaborative process” between the council’s design team and other organisations such as the Environment Agency, the trust, and other river specialists.
Once completed, the park was expected to feature remains of the 12th Century Sheffield Castle, which will be on display for the first time since it was demolished in the 1600s.