Phoenix Wharf Jetty Demolition
With the help of a 600-tonne jack-up Commander and a 400-tonne crawler crane, the contractor lifted the reinforced concrete jetty deck off its timber pile supports and transported it down river for suitable disposal.
Vibrated out of the river bed, the timber piles were then disposed of accordingly.
The original demolition programme was estimated to last 10 weeks, however due to the colossal plant involved and favourable site conditions, demolition was completed in just over three weeks.
What Did Frankham Do
Approached by Renewi (then Shanks Group), Frankham prepared a tender package for demolition of the jetty structures at Phoenix Wharf located just off Rainham Marshes, Essex.
As part of the tender process, we were commissioned to obtain licences from the below Statutory Bodies.
Port of London Authority
The Port of London Authority (PLA) was created by the Port of London Act (1908).
Its main roles are to protect the river’s environment, maintain and supervise navigation covering 95 miles of the River Thames.
The process of obtaining consent from the PLA for dredging is as follows.
1. Outline project proposals and provide the PLA with plans showing extent of works
2. Request a sample plan and specification from the PLA
3. Submit a full application containing the following:
4. Relevant PLA forms
5. Water Framework Directive (WFD) assessment (further information below)
6. Provision for hydrographic surveys to be conducted before and after proposed works
7. Risk Assessments and Method Statements
8. Details of any potential effects of the proposed works on nearby sites
Works were able to progress on-site, once licences were obtained. As a result restrictions between June and December minimised potential disruption to migrating birds and fish.
Frankham carried out site supervision and acted as Contract Administrator during the demolition phase.
To finish the project, navigation lights will be added to the remaining structures that are submerged at high tide protecting shipping.
The Client Said
“The services have been very good in respect of initial survey work and recommendations to running a tender process through to contract administration and to project management. Also in obtaining statutory consents from PLA; MMO & EA.”
“Very good support as the project related to marine activity. There was no knowledge within our business so guidance was crucial.”