Sector Transport infrastructure
Services provided Product / system manufacture
Product / system supply
Installation
Year completed 2015
Project location North West England
Client Leeds City Council
Consultant Mott Macdonald
Contractor BAM Nuttall
Products used Berwick Ferrocast post and rail; Stanton Moor walling
 
 

Context

Because of concerns about flooding risks associated with climate change and increasing urbanisation, Leeds City Council, in partnership with the Environment Agency, has installed flood defences between Leeds train station and Knostrop Lock downstream of the city centre. The £50m flood alleviation scheme (FAS) uses moveable weir technology and is one of the largest river flood alleviation schemes in the country. It also provides environmental improvements to the waterfront wherever possible, including landscaped waterfront seating areas, opportunities for biodiversity and cycle paths between the city centre and the wider Lower Aire Valley.

The project comprises three main elements: state-of-the-art mechanical weirs; the merging of the river and canal; and flood walls and embankments stretching 4.5km through the city centre.

Products used

Marshalls was brought into the procurement process early enough to offer their expertise which helped to achieve several environmental benefits for the project.

Ferrocast Berwick polyurethane post and rail system has traditional styling and was installed to create a safe barrier along the waterfront.

Ferrocast has a number of economic and quality benefits as opposed to using cast iron.

  • Very durable - engineering grade product.
  • Impenetrable by water meaning it won’t rust.
  • A warm-to-the-touch material providing a vital aid for the elderly and those with frailties.
  • Ferrocast is approximately 10% cheaper than cast iron.
  • Ferrocast is lighter - it can be installed by hand saving cost on machinery and equipment hire.
  • The polyurethane mix is solid throughout meaning the posts are not affected by chips and scrapes, further reducing maintenance costs and adding to the whole life cost reduction.
  • Posts have no residual value and therefore are not subjected to potential theft.
  • Ferrocast resin is bonded to a 50mm mild steel core which only requires a 75mm core cut into concrete wall, whereas a cast iron post needs a 150mm core, saving on coring and grouting costs.
  • Posts have moveable connections and can therefore take out slight imperfections in alignment on site to tie into the flood walls.
  • Lower carbon footprint - Ferrocast is produced within a two hour drive of the site and replacement posts can be sourced quickly.
  • Emblems or logos can be cast into the Ferrocast mix to enable personalisation for Leeds City Council.

Outcome

The scheme was officially opened by the Leader of the Council, Councillor Judith Blake CBE and Chair of the Environment Agency, Emma Howard Boyd and will provide more than 3,000 homes, 500 businesses and 300 acres of development land with increased protection against flooding from the River Aire and Holbeck.


Context

Because of concerns about flooding risks associated with climate change and increasing urbanisation, Leeds City Council, in partnership with the Environment Agency, has installed flood defences between Leeds train station and Knostrop Lock downstream of the city centre. The £50m flood alleviation scheme (FAS) uses moveable weir technology and is one of the largest river flood alleviation schemes in the country. It also provides environmental improvements to the waterfront wherever possible, including landscaped waterfront seating areas, opportunities for biodiversity and cycle paths between the city centre and the wider Lower Aire Valley.

The project comprises three main elements: state-of-the-art mechanical weirs; the merging of the river and canal; and flood walls and embankments stretching 4.5km through the city centre.

Products used

Marshalls was brought into the procurement process early enough to offer their expertise which helped to achieve several environmental benefits for the project.

Ferrocast Berwick polyurethane post and rail system has traditional styling and was installed to create a safe barrier along the waterfront.

Ferrocast has a number of economic and quality benefits as opposed to using cast iron.

  • Very durable - engineering grade product.
  • Impenetrable by water meaning it won’t rust.
  • A warm-to-the-touch material providing a vital aid for the elderly and those with frailties.
  • Ferrocast is approximately 10% cheaper than cast iron.
  • Ferrocast is lighter - it can be installed by hand saving cost on machinery and equipment hire.
  • The polyurethane mix is solid throughout meaning the posts are not affected by chips and scrapes, further reducing maintenance costs and adding to the whole life cost reduction.
  • Posts have no residual value and therefore are not subjected to potential theft.
  • Ferrocast resin is bonded to a 50mm mild steel core which only requires a 75mm core cut into concrete wall, whereas a cast iron post needs a 150mm core, saving on coring and grouting costs.
  • Posts have moveable connections and can therefore take out slight imperfections in alignment on site to tie into the flood walls.
  • Lower carbon footprint - Ferrocast is produced within a two hour drive of the site and replacement posts can be sourced quickly.
  • Emblems or logos can be cast into the Ferrocast mix to enable personalisation for Leeds City Council.

Outcome

The scheme was officially opened by the Leader of the Council, Councillor Judith Blake CBE and Chair of the Environment Agency, Emma Howard Boyd and will provide more than 3,000 homes, 500 businesses and 300 acres of development land with increased protection against flooding from the River Aire and Holbeck.


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Durable post and rail system for waterfront FAS scheme