Work has recently been completed at Newark, Nottinghamshire on the Langford Outfall contract for client Tarmac Quarries. The £450,000 contract was required to protect the RSPB Langford Lowlands Nature Reserve being inundated during high river levels on the River Trent.
The work involved the construction of two concrete reinforced head walls, one inlet structure to the RSPB ponds and one outfall structure in to the River Trent. The headwalls were connected by 1950mm diameter pipework.
The installations included a tilting weir and penstock to the inlet and a flap valve on the outfall. The river bank sides were reshaped and new access steelwork was installed to both headwalls.
The work was carried out under the approval of both the Environment Agency and the RSPB. All temporary works along the river were carefully undertaken not to disturb the popular local fishing pegs and close liaison with the RSPB Manager to ensure work was undertaken with the minimum of risk to the ponds and their inhabitants.