Jan 06, 2020

Flood Bund Protects Residences from Damage

flood control

After a large flooding event impacted a farm, workshop and a private house on the River Wyre riverbank, property owners sought out a solution. Over the span of a year, a plan was developed for what would be the most suitable option. A simple redesign showed a raised flood bund and additional features could prevent flooding.  

The local Flood Action Group (FLAG), comprised of village volunteers who have all suffered from flooding in the past, was a driving force in securing funding and gaining approval and publicizing the project to fellow residents, said David Grayston, of project owner Floodsafe.

FLAG reached out to various charities, and the Environment Agency provided a contribution. 

For the project, precast concrete flood blocks were implemented. The final design of the project covers more than 500 flood defenses with a combination of earthen raised bund through agricultural land and a 1.5-meter high modular block wall. The project is complete with gates and demountable barriers where the line comes closer to a domestic property. 

The hollow blocks, which are laid on a reinforced concrete strip foundation, allow for steel reinforcements and concrete infill to be used, resulting in quick installation and protection for the surrounding property.

In the end, this solution protects the entire village of Churchtown in Lancashire in the United Kingdom, not just the three original properties. 

“The range of methods and products employed means the scheme blends in with the environment in a very pleasing way,” Grayston said. “In the end, the program is far more worthwhile than how it was first envisaged." 

Project Year:
Contractor: Suffolk Construction
Designers: Waterfield Design Group Inc.

Owner: Boston College
Location: Chestnut Hill, Mass.
Cost: $1.348 million
Size: 7.57 acre-ft