Businesses in Sheffield have less than two days to vote on whether they want to see flood defences installed in the Lower Don Valley.
More than 250 companies in the valley are being urged to vote on the proposals - and they have only until 5pm tomorrow to do so.
The plans include nearly 40 interventions along the eight-kilometre stretch of the River Don between Nursery Street in the city centre and Blackburn Brook near the M1.
A majority yes vote is needed for the project to go ahead, and the result will be announced on Monday.
The £8.1 million project is reliant on businesses agreeing to contribute £1.4m.
Small companies with a rateable value of less than £12,000 will be excluded from paying, while more than half of firms would have to provide less than £2,500.
The Government has offered £5.5m and further cash is being sought from the Environment Agency. Severe flooding caused huge disruption in the Lower Don Valley in 2000 and 2007.