Sector Transport infrastructure
Project type New build
Services provided Product / system manufacture
Installation
Project location West Midlands
Client National Trust
 
 

Challenge

The National Trust needed to replace a bridge located in the heart of the grounds of Attingham Park.

Access was a key constraint. The nearest farm track was 500m away from the site, which was found in a boggy flood plain.

Solution

CTS determined the National Trust’s requirements and, after initial liaison, put them in contact with a civils firm that CTS had worked closely with in the past to co-ordinate the substructure and superstructure works.

CTS itself removed the existing timber-framed suspension bridge. The company prepared a sequence of works to ensure a safe and controlled demolition that relied only on land-based temporary works to avoid any works or existing structure entering the watercourse.

The company installed an aluminium trackway with heavy bog mats at the lift site to allow bridge delivery and crane access. Even so, there was a limit to the size of plant or section of bridge that could be delivered.

The main bridge span was delivered in three sections to restrict the lift weight to the capacity of the largest mobile crane that could be transported to site.

The company advised that installation should be scheduled later than March to minimise the risk of flooding and improve ground conditions.

As no temporary works could be placed in the river, all work was managed using a safe system of work from the bank.


Challenge

The National Trust needed to replace a bridge located in the heart of the grounds of Attingham Park.

Access was a key constraint. The nearest farm track was 500m away from the site, which was found in a boggy flood plain.

Solution

CTS determined the National Trust’s requirements and, after initial liaison, put them in contact with a civils firm that CTS had worked closely with in the past to co-ordinate the substructure and superstructure works.

CTS itself removed the existing timber-framed suspension bridge. The company prepared a sequence of works to ensure a safe and controlled demolition that relied only on land-based temporary works to avoid any works or existing structure entering the watercourse.

The company installed an aluminium trackway with heavy bog mats at the lift site to allow bridge delivery and crane access. Even so, there was a limit to the size of plant or section of bridge that could be delivered.

The main bridge span was delivered in three sections to restrict the lift weight to the capacity of the largest mobile crane that could be transported to site.

The company advised that installation should be scheduled later than March to minimise the risk of flooding and improve ground conditions.

As no temporary works could be placed in the river, all work was managed using a safe system of work from the bank.


 
 
 
Downloads
  • Case Study: Cable Stay Bridge, National Trust Attingham Park
    Case Study: Cable Stay Bridge, National Trust Attingham Park
    1pp 3.67MB
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