The centre of the city of Rotherham in South Yorkshire suffered vital flooding following excessive rainfall in June 2007 and November 2019, affecting tons of of properties and companies, writes Helen Wilson, business & infrastructure gross sales supervisor at Xylem.
In response, Rotherham Metropolitan Borough Council is enterprise a major bundle of flood defence measures to guard the group from future occasions and to cut back the chance of flooding from the River Don and its tributaries.
The programme contains development of a significant new stormwater pumping station within the automotive park of Rotherham United Soccer Membership in Don Avenue.
The answer
The council’s major mission contractor, Breheny Civil Engineering, chosen Xylem know-how for the station’s pumping system:
- Three Flygt CP3501 stormwater pumps
- One NP3153 jockey pump
The pumps carry out the crucial job of pumping extra floor water downstream to a brand new outfall, the place it’s returned to the River Don during times of heavy rainfall.
The pumping station powers-up when the water degree within the River Don, behind the soccer stadium, rises above 24m throughout storms. On these events, a penstock situated inside an present outlet chamber closes to forestall water flowing into the flood-risk space.
A penstock situated upstream of the brand new pumping station opens, with flows diverted into a brand new chamber constructed subsequent to the river. When stormwater within the chamber reaches a set degree, the CP3501 pumps power-up to ship flows by way of a concrete culvert to the brand new outfall and into the river downstream, away from the at-risk areas.
Every Flygt CP3501 pump is designed to handle 1,000l/s of stormwater and operates on an obligation/help/help foundation. When all three pumps are in operation, they’ll discharge at a price of 3000l/s and will empty an Olympic-size swimming pool in 13 minutes. Every of the three major pumps discharge by way of 800mm inside diameter ductile iron pipework.
The NP3153 jockey pump removes small ingress flows from the chamber. The pump can discharge a minimal 100l/s per second and can power-up when water reaches a set, decrease degree. If ranges preserve rising, the primary pumps will routinely kick in.
Xylem has been appointed by Rotherham MBC because the service and upkeep contractor for the pumping station and outfall.
John Coyne, mission supervisor at Breheny Civil Engineering, stated: “We had been appointed to assemble a brand new stormwater pumping station within the automotive park of Rotherham United Soccer Membership to alleviate flooding in Rotherham city centre.
“The brand new pumping station is a significant asset that can safeguard Rotherham city centre from future floods. The set up of excessive quantity Xylem pumps was a major milestone for the mission, with every major pump able to discharging 1,000 litres per second in full circulate.
“This vital infrastructure mission is an instance of nice teamwork between the shopper, contractor and provide chain to ship for the local people.”
