Work on the replacement Foss barrier is progressing again as river levels fall.
The huge new gate was lifted into place last month
The original barrier was installed in 1987 but was overwhelmed in the 2015 floods.
A new pumping house has been installed along with the barrier and improved banking.
The cost of the project is put at £37 million.
In a separate scheme, the nearby “Blue Bridge” cycle and pedestrian facility was also refurbished last year.