Cost of flood defence scheme in North Sheffield set to double because of 'difficult ground conditions'
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The Loxley alleviation scheme will deliver long-awaited defences to reduce flood risk and support the long-term viability of the local community and businesses.
Designing and building the scheme was originally estimated at £4million and was intended to be funded by Sheffield City Region and Defra (Department for Environment, Food and Rural Affairs).
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Hide AdHowever, the scheme tender price is now £7.75million, which is £3.75million higher than the original estimate.
In a report, officers say: “The scheme cost has increased because site investigations have revealed more onerous ground conditions, requiring more sophisticated and expensive design solutions.
“In addition, several areas of public realm landscaped areas have been introduced to improve public accessibility and connectivity to the riverside.”
Sheffield Council and the Environment Agency will now contribute to the funding.
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Hide AdOfficers add: “The confluence of the River Loxley and the Upper Don’s relatively steep channel, with several weirs and river crossings in the area, results in communities and businesses being at high risk of flooding that exceeds the channel capacity, with river crossings trapping debris and restricting channel conveyance.
“Due to the steep topography of the area, once flood waters leave the river channel they can travel some distance, resulting in a widespread impact.
“The most recent flood occurred in 2007 and resulted in widespread damage to local homes and businesses, causing great distress to residents and forcing many businesses to suspend operations for many months.”
The council recently earmarked £22million to protect Sheffield from the expected increased flood risk resulting from climate change.
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Hide AdConstruction is due to start in July to protect parts of Hillsborough and Owlerton which flooded during last November’s floods.
And a £3million citywide culvert scheme is being developed to improve water flow throughout the city, diverting excess water away from roads and highways.