Limerick Main Drainage – Contract 1.2 Outfall
-
Project Type
Wastewater
-
Client
Limerick City Council
-
Company Involvement
Roadbridge was appointed as the Main Contractor for this project on the 25th May 2000 and Barry’s acted as the Engineers.
-
Form of Contract
CECEA Form of Contract
-
Dates
July 2001 – September 2001
-
Location
Limerick, Ireland
Key Features
- Primary and Secondary Settlement Tanks
- Aeration and Storm Tanks
- 3 no. Administration buildings and facilities
- Ancillary works, site development and landscaping
- 1.4km sea outfall for the Limerick Sewerage Treatment Works
- Construction of 1.4km 1200mm Ø HDPE pipe from the treated effluent discharge chamber at the treatment works to the diffuser chamber at the end of the jetty
- A 274m jetty extending out into the main flow channel of the River Shannon was constructed in very soft alluvial silts in a 7.7m tidal range
- The jetty was constructed using steel tubular piles 450mm x 25mm, with an average length of 26m, driven to rock. An insitu pile cap was formed on top to receive a precast concrete deck with a tarmac roadway on top
- Significant temporary works were needed to construct this jetty. A temporary working platform was used for access for cranes and pile driving
