| Anchorage Name | Location (Coordinates) | Area (km²) | Depth (m) | Bottom Type | Max Vessel DWT | Capacity | Primary Use | Holding Power | Restrictions & Safety Notes | Commercial Notes | Chart Reference |
|---|---|---|---|---|---|---|---|---|---|---|---|
| No.1 Outer Anchorage | 25°09.5’N 121°44.6’E | 3.2 | 25-32 | Clay with sand | 150,000 | 6 vessels | General waiting | Good in SE winds | Prohibited during typhoons Min 0.5nm separation |
Free anchorage 72hr max stay |
KM C3206 (1:25,000) |
| No.2 Oil Tanker Anchorage | 25°08.2’N 121°46.8’E | 1.8 | 30-35 | Mud | 200,000 | 3 vessels | Crude oil transfers | Excellent | Mandatory safety zone No anchoring outside polygon |
Requires port clearance Bunkering permitted |
KM C3208 (1:15,000) |
| No.3 Emergency Anchorage | 25°07.0’N 121°42.0’E | 2.5 | 28-34 | Sandy clay | 100,000 | 2 vessels | Distress situations only | Good (all weather) | 24hr prior notice required Medical emergencies priority |
No commercial operations Port fees waived |
KM C3207 (1:20,000) |
| Inner Harbor Anchorage | 25°10.3’N 121°45.1’E | 1.5 | 18-22 | Mud with shells | 50,000 | 4 vessels | Coastal vessels | Fair (wind ≤25kt) | Tug standby required Max stay 48hr |
Daylight operations only Fresh water available |
KM C3210 (1:10,000) |
| Quarantine Anchorage | 25°08.8’N 121°43.5’E | 0.8 | 20-25 | Clay | 80,000 | 2 vessels | Health inspections | Good | Yellow flag required No crew transfers |
Medical waste disposal available 24hr clearance |
KM C3209 (1:10,000) |
| Dangerous Cargo Anchorage | 25°06.5’N 121°47.5’E | 1.2 | 26-30 | Sandy mud | 70,000 | 2 vessels | IMO Class 1-3 | Good | 2nm exclusion zone Continuous VHF watch |
Special handling fees apply Daylight transfers only |
KM C3212 (1:12,000) |
| Naval Anchorage | 25°09.0’N 121°48.0’E | 2.0 | 30-38 | Hard sand | – | Military use | Government vessels | Excellent | No entry without permission Radar monitored |
Not for commercial use | KM Restricted |
Supplemental Anchorage Data:
| Parameter | Specification | Standard Reference |
|---|---|---|
| Anchor Holding Coefficient | 3.0-4.5 (sand/clay bottom) | OCIMF Mooring Equipment Guidelines |
| Watch Circle Radius | 150% of chain length + LoA | IMO Res.A.893(21) |
| Swing Circle Diameter | 500m for VLCCs | ICS Anchor Handbook |
| Tidal Current Effects | Max 2.8kt during spring tides | Port Hydrographic Survey 2023 |
| Anchorage Lights | Yellow all-around (Fl Y 10s) | IALA Buoyage System |
Operational Procedures:
1. Anchoring Sequence:
– Minimum scope: 5:1 (calm), 7:1 (heavy weather)
– Dragging tolerance: <0.1nm/15min
2. Position Monitoring:
– AIS must remain active
– Position reports every 30min to Port Control
Emergency Contacts:
– Port Control: VHF Ch 12/16
– Anchorage Violations: +886-2-2420-6712
– Pilots: VHF Ch 13
Environmental Restrictions:
1. Prohibited Zones:
– Coral area: 25°07.2’N 121°45.6’E (500m radius)
– Pipeline corridor: NW sector
2. Oil Spill Penalty:
– Up to $200,000 USD for unauthorized discharge
Navigation Warnings:
– Submarine cables: Avoid 25°09.1’N 121°46.3’E
– Unsurveyed area: NE of No.1 Anchorage
