Sheffield companies will start paying into a £1,4m flood defence scheme this week - ahead of construction starting in the autumn.
Some 250 firms will chip in for more than 50 schemes along a 5m stretch of the River Don between Nursery Street and Blackburn Brook near the M1.
The plan is to improve flood protection up to a 1-in-100 year standard and pay for maintenance of the channel for five years.
The Lower Don Valley Flood Defence Business Improvement District is set to see five planning applications submitted by the end of June 2014. Construction work is expected to start in the autumn, with defences being completed by the spring of 2016.
Sheffield City Council has been working with contractor, Carillion, and the Environment Agency to develop detailed designs for the scheme..
A Sheffield Chamber spokesman said payment will be calculated on rateable value over five years. Small companies with a rateable value less than £12,000 won’t pay towards the project, while more than 60 per cent of businesses will pay less than £2,500.