Sewer Diversion by HDD and Microtunnelling, South Lynn
Combination Horizontal Directional Drilling & Microtunnelling – manhole depth 4-11metres. Works included:
- Installation of 797m of transmission pipeline (up to 450mm dia PE) via trenchless methods
- Installation of 285m of network pipeline (up to 315mm dia PE) via trenchless methods
- Depth of excavations between 6.0 – 11.0 metres
- Connecting lines
- Stream Crossing via drilling & damming creek & monitoring flow
- Precast Manhole Installation (transmission manholes, network manholes and connection manholes)
- Connect to existing manholes
- Abandoning existing services and removing six (6) pipe bridges
- Vegetation Management
- Private Drainage
- CCTV & Reinstatement
- Removal of 4 overflows from the creek
Completed: April, 2014
Client: Watercare
Type: HDD
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