Divers and specialist equipment will be visible in the River Wear in Durham City centre in the coming weeks as repairs are carried out to a weir.
Durham County Council will be carrying out repairs to Milburngate Weir from Monday 4 September for approximately seven weeks.
Work will see steel structures embedded in the riverbed next to the barrier, which is approximately 50m upstream from Milburngate Bridge.
Concrete suitable for use underwater will also be placed between the steel sheets and the weir.
Concrete will be pumped from the eastern riverbank, through steel pipes attached to the top of the structure, to fill voids as required.
The work has the full consent of the Environment Agency.
Cllr Brian Stephens, Cabinet member for neighbourhoods and local partnerships, said: “We are carrying out this work in order to protect this structure and, as it involves activities in water, the use of specialist divers will be required.
“Our partners at the Environment Agency have approved the detail of what we are doing – all of which has been planned to minimise disruption for the wildlife which inhabit the river.”
Anglers are being advised that it will be necessary to lower the water level around the weir at times to allow work to take place.
However, every effort will be made to limit the number of occasions this is done.