NRV Culverts NM Corner

Description of Works Refer to attachment: Natural England Specifications of Requirements - NRV Culverts NM Corner Replace three existing 450mm culverts fitted and non-return valves (flap valves) previously installed in the 1990s. Non-return valves were fitted to act as a water supply into the North Moor Corner Raised Water Level area when water levels within internal ditches are lower than external levels. Structures to allow passage of water into the raised water level area, but in an emergency can also be opened...