Marine piling in tidal waters combines the hazards of heavy piling operations with the risks of working over water in a constantly changing environment. Tides, currents, waves, and weather conditions can change rapidly, making access, stability, and rescue more difficult than on land. This talk covers the specific safety controls needed for marine piling operations in tidal environments.
Key Hazards
Drowning from falling into tidal water from the piling barge or jetty
Barge instability from tidal range causing uneven loading or grounding
Workers trapped by rising tide while working at the pile location
Crush injuries from pile handling on moving platforms in swell conditions
Control Measures
Wear a personal flotation device at all times when on the barge, jetty, or near tidal water.
Plan all operations around the tidal window with a mandatory withdrawal time before the tide turns.
Appoint a tide watcher to monitor water levels and give early warning of rising conditions.
Ensure the piling barge is moored securely with adequate scope for the full tidal range.
Use tag lines to control pile swing during lifting and pitching from the barge or crane.
Brief all crew on the man overboard procedure and the location of rescue equipment.
Monitor weather and sea state forecasts continuously and set stop-work thresholds for wave height.
Ensure lifeboats, throw lines, and lifebuoys are positioned at multiple accessible points.
Coordinate with the harbour master or port authority for vessel movements in the work zone.
Emergency / Rescue
If someone falls into tidal water, shout 'man overboard' and throw a lifebuoy immediately. Call 999 and request the Coastguard. Do not enter the water unless trained in water rescue. Keep the casualty in sight and note their position.
Remember
Wear a personal flotation device at all times when working on or near tidal water
Plan operations around the tidal window and never extend beyond the agreed safe time
A tide watcher must monitor conditions and give early warning of rising water throughout
Brief all crew on the man overboard procedure and rescue equipment locations
Monitor weather and wave conditions continuously and stop when thresholds are reached
Applicable Legislation: CDM 2015 · LOLER 1998 · Merchant Shipping and Fishing Vessels Regulations · Port Marine Safety Code