Common Service Tunnel Phase 1B Shaft
| Project No. | 25 |
| Project Name | Common Service Tunnel Phase 1B Shaft |
| Alias | CST1B |
| Construction Type | Diaphragm Wall |
| Year | 2006 |
| Construction Period | 2006.06 - 2006.12 |
| Status | Completed Project |
| Country | Singapore |
| Client | URA |
| Main Contractor | Koh Brothers |
| Scope of Works | D-wall Circular Shaft Φ51m (G/W=146.7m, T=1.0m) – 7,481m3. |
| Address | Marina South, Singapore |
