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Lundwood (Lang Avenue) flood alleviation scheme

In 2007 and 2019 the Lang Avenue area of Lundwood experienced a lot of flooding. Since 2021 we've been working with Berneslai Homes to find out what may be causing flooding on Lang Avenue. We're also looking to find any actions that could be taken to reduce the impact of future flooding.

Enzygo were employed by Berneslai Homes to help identify the flooding at Lang Avenue.

Phase 1 (2019 to 2021): analysing existing water flows

This included the following:

  • Monitoring water levels. This allowed Enzygo to capture flood events. They then looked at the water levels across the River Dearne Gauge at Cundy Cross and at surface water that flows to the River Dearne.
  • Surveying the culverts.
  • Reviewing the surface water storage that's connected to Yorkshire Water's drainage system.
  • Cleaning out the ditch on the western side of the Trans Pennine Trail embankment.

Phase 2 (2021 to 2022): ongoing maintenance and improvement works to existing network

The work done at phase one is helping us, Berneslai Homes and Yorkshire Water to:

  • carry out a CCTV survey of the culverts
  • carry out a topographic survey
  • form a Lundwood Flood Action Group who will deliver some workshops
  • do hydraulic modelling of the River Dearne and a flood storage assessment to understand the flood levels at Lang Avenue
  • model the sewer network
  • create new drainage design for offline storage options
  • identify four culverts during investigations - these will be cleaned and headwalls will be fitted where they can

Phase 3 (2023 to 2026): formal design

We’re continuing our partnership with William Saunders Partnership (WSP) via the North Yorkshire County Council construction framework to progress the Lang Avenue flood alleviation scheme.

Building on the engineering proposals developed in phases 1 and 2, phase 3 will focus on finalising the design and preparing for construction. This includes upgrading the surface water drainage system and highway infrastructure, and developing solutions to safely convey water to the River Dearne.

We’re working closely with Yorkshire Water and the Environment Agency to ensure the scheme delivers long-term flood resilience for residents