Marine Waste Water Outfall Pipe & Diffuser Installation
Project Details
Project:
Belmullet Sewerage Scheme
Client:
Roadbridge
Works:
Installation of 622m of outfall pipe
Date:
June/July 2017
Description
The works consisted of:
- Excavation of the trench
- Installation approximately 622m of 250mm Ø plastic pipe
- Supply of ballast weights (concrete collars)
- Installation of ballast weights on outfall pipe
- Preparation of diffuser bed with Reno Mattresses
- Installation of stainless steel diffuser in 4m of water 420m below MHWS
- Connection of the outfall pipe to the diffuser
- Backfill and profiling of excavation
Marine Specialists Equipment
- Komatsu 360PC LR 10 360° excavator
- 6No CP4084 pontoons
- 2No 16.5m Spud Legs
- Mini Tug vessel – Marine Bravo
- Barge based Dive Spread
Notes
The outfall and diffuser were located in Mullet/Blacksod Bay Complex SAC (site code 000470). Consequently, all relevant pollution control and biosecurity procedures and protocols were implemented and adhered to for the duration of the works.
