Emergency flood alleviation works undertaken on the sand dunes at Mablethorpe North Beach, Lincolnshire, which had been washed away and deposited on to the South Beach during storms in December 2013. The project aimed to load the storm deposited sand from the South Beach and haul it back to the North beach where the sand would be formed into a 1>10 batter to protect the existing dunes.
The project was originally planned to be undertaken in two phases: Phase 1 - loading sand from the ‘borrow’ area on the South Beach and taking it to the North Beach dunes to install the first mile of protection batters. Phase 2 - loading the sand on the North Beach, deposited by a dredger and continue to install the batters of the dunes for a further 1.8 miles.However, both phases were completed in the one visit without the need for a dredger. All sand was won from the South Beach ‘borrow’ area.It was prohibited to traffic over the existing storm water outfall culvert, which meant tidal working. The A30 dump trucks utilised travelled around the end of the outfall and to the area of fill. Tidal times allowed approx. 5 to 6 hours working a day before the tide cut off the haul route. During the periods of incoming tides, a long reach excavator was utilised to ‘cast’ sand over the outfall, which was then loaded on to dump trucks. This method was used daily, which allowed an additional 150m3 to be moved per day. In total, 37,000m3 of sand was moved from the ‘borrow’ area on the South Beach to the dunes on the North Beach.The project was undertaken on a live beach, which required interface with the general public. Environmental management was a high priority, bio fuel was utilised on all items of plant together with plant nappies and spill kits and the implementation of designated re-fuelling areas.
Emergency flood alleviation works undertaken on the sand dunes at Mablethorpe North Beach, Lincolnshire, which had been washed away and deposited on to the South Beach during storms in December 2013. The project aimed to load the storm deposited sand from the South Beach and haul it back to the North beach where the sand would be formed into a 1>10 batter to protect the existing dunes.
The project was originally planned to be undertaken in two phases:
Phase 1 - loading sand from the ‘borrow’ area on the South Beach and taking it to the North Beach dunes to install the first mile of protection batters.
Phase 2 - loading the sand on the North Beach, deposited by a dredger and continue to install the batters of the dunes for a further 1.8 miles.
However, both phases were completed in the one visit without the need for a dredger. All sand was won from the South Beach ‘borrow’ area.
It was prohibited to traffic over the existing storm water outfall culvert, which meant tidal working. The A30 dump trucks utilised travelled around the end of the outfall and to the area of fill. Tidal times allowed approx. 5 to 6 hours working a day before the tide cut off the haul route.
During the periods of incoming tides, a long reach excavator was utilised to ‘cast’ sand over the outfall, which was then loaded on to dump trucks. This method was used daily, which allowed an additional 150m3 to be moved per day. In total, 37,000m3 of sand was moved from the ‘borrow’ area on the South Beach to the dunes on the North Beach.
The project was undertaken on a live beach, which required interface with the general public. Environmental management was also a high priority, bio fuel was utilised on all items of plant together with plant nappies and spill kits and the implementation of designated re-fuelling areas.
The project was originally planned to be undertaken in two phases:
- Phase 1 - loading sand from the ‘borrow’ area on the South Beach and taking it to the North Beach dunes to install the first mile of protection batters.
- Phase 2 - loading the sand on the North Beach, deposited by a dredger and continue to install the batters of the dunes for a further 1.8 miles.
However, both phases were completed in the one visit without the need for a dredger. All sand was won from the South Beach ‘borrow’ area.It was prohibited to traffic over the existing storm water outfall culvert, which meant tidal working.
The A30 dump trucks utilised travelled around the end of the outfall and to the area of fill. Tidal times allowed approx. 5 to 6 hours working a day before the tide cut off the haul route. During the periods of incoming tides, a long reach excavator was utilised to ‘cast’ sand over the outfall, which was then loaded on to dump trucks. This method was used daily, which allowed an additional 150m3 to be moved per day. In total, 37,000m3 of sand was moved from the ‘borrow’ area on the South Beach to the dunes on the North Beach.
The project was undertaken on a live beach, which required interface with the general public. Environmental management was also a high priority, bio fuel was utilised on all items of plant together with plant nappies and spill kits and the implementation of designated re-fuelling areas.