Purpose

Fishlake is a village within Doncaster that
lies on the left bank of the River Don. During November 2019,
within the Fishlake area, 173 properties were recorded as having
flooded. Flooding has previously
occurred during 2007.
During November 2019 a combination of two major rainfall events on
subsequent weeks produced a major flood on the River Don that first
exceeded the design standard of the left Riverside Bank and then
subsequently overtopped the secondary Barrier Bank. Significant
overtopping of the Riverside Bank occurred upstream and just
downstream of Stainforth Bridge (Fishlake Nab). The flood extent
was initially contained by the secondary level of defence, the
Barrier Bank, until this was overtopped, allowing the flood water
to quickly spread east, north, and west across the village filling
up lower-lying areas and flooding many properties until most of the
village was submerged.
Following the November 2019 flood event, the highway had incurred
damage and the drainage system needed to be cleansed and the
majority of the watercourses had to be de-silted and regraded due
to
slippages, this cost was incurred by City of Doncaster Council and
the Internal Drainage Board. It is possible that the findings of
this report will identify a solution to limit the financial impact
of future flood
events.
A study has been completed using £***** from Local Levy
funding. The information from the study will be used to inform the
business case to secure delivery the preferred solution/s
identified. The purpose of the additional funding is to complete a
detailed design and construction of the preferred scheme. The
preferred option identified from the study is the installation of a
non-return structure on Sour Lane Drain in Fishlake

Content

To approve the acceptance of funding to
deliver a non-return structure to reduce and improve flood risk
management interventions within the Fishlake catchment. Funding of
£**** will come from internal cost code EN032 which has been
allocated for the works.

• To providing a grant of up to £**** to the Internal
Drainage Board to carry out the detailed design and construction of
the scheme within the Fishlake FRMS as the asset is within IDB area
and the IDB will carry out the work using the powers under The Land
Drainage Act
1991.

• The IDB will be maintaining the asset for the asset lifetime
and this will be included as a term of the grant agreement.

• This is an update/amendment to the approved ODR PLACE23
0912