| Anchorage Name (HPA Designation) |
Location (WGS 84) | Area (km²) |
Depth (m) CD → LAT |
Bottom Type & Holding | Max Vessel DWT | Capacity | Operational Scope | Safety Protocols | Commercial Terms |
|---|---|---|---|---|---|---|---|---|---|
| AN-1 (VLCC/Capesize) | Quadrilateral bounded by: 19°06’12″N 108°38’24″E 19°06’30″N 108°40’36″E 19°08’36″N 108°40’48″E 19°08’24″N 108°38’18″E |
5.6 | Charted Depth: 26-32m (LAT +3.1m) |
Class C4 Clay SHF=2.3 (DNV verified) Breakout force: 45t/m² |
350,000 | 4 VLCCs (Min 900m spacing) |
– Pre-berth holding – Bunkering ops – Crew changes |
1. Typhoon Signal No.3+ = vacate 2. Dual anchor mandatory >250,000 DWT 3. Weekly drag test required 4. AIS Class A continuous transmission |
– Pilotage: US$5,200 (compulsory) – Anchorage fee: US$0.09/GT/day – Demurrage: US$14,000/day from 72hrs |
| AN-2 (General Cargo) | Circle radius 1.8nm Center: 19°09’00″N 108°35’30″E |
3.0 | 18-22m (LAT +2.8m) |
Class C3 Sandy Mud SHF=1.8 Breakout force: 28t/m² |
80,000 | 8 vessels (Max LOA 240m) |
– Transshipment – Customs inspection – Repairs <48hrs |
1. Chain scope ≥7:1 2. Daily position reporting 3. Restriction zone: 500m around 19°09’18″N 108°36’06″E 4. No hot work >200m³ gas tankers |
– Freshwater: US$48/m³ – Waste disposal: US$1,200 flat – Overtime fees: US$350/hr after 1700 |
| AN-3 (Class 1-3 DG) | 1.0nm radius Center: 19°12’18″N 108°33’42″E |
3.1 | 20-25m (LAT +3.4m) |
Class C5 Firm Clay SHF=2.8 Breakout force: 65t/m² |
50,000 | 2 vessels (Min 1nm separation) |
– IMDG Code categories – Gas-free operations – Emergency discharge |
1. 24hr patrol boat surveillance 2. Electrostatic protection required 3. Radio silence within 2nm 4. Compulsory CO2 system inspection |
– Security deposit: US$75,000 – HAZMAT surcharge: US$2,200/day – Mandatory spill insurance |
| AN-4 (Coastal ≤150m) | 0.5nm radius 19°10’54″N 108°37’12″E |
0.8 | 9-12m (LAT +1.9m) |
Class C2 Muddy Sand SHF=1.2 Breakout force: 18t/m² |
15,000 | 12 vessels (Max 8hr overlap) |
– Barge transfers – Crew provisions – Shelter from SE winds |
1. Storm warning ≥Beaufort 6 = vacate 2. Mandatory rat guards 3. Gangway watch 24/7 |
– Local vessel discount: 30% – No night fees 0000-0600 – Cash deposit: US$5,000 |
| AN-5 (Distress Use Only) | 0.3nm radius 19°07’30″N 108°40’00″E |
0.3 | 15-18m (LAT +2.5m) |
Class C6 Hard Sand SHF=3.1 Breakout force: 72t/m² |
30,000 | 1 vessel | – Mechanical failure – Medical emergencies – Severe weather refuge |
1. Continuous VHF 16 monitoring 2. Permission code: “Hainan MRCC-135” 3. Fire pumps on standby 4. Maximum 12hr occupancy |
– No port charges – Salvage bonds waived – Agency fee exemption |
| AN-6 (RoRo Operations) | 0.25nm x 0.5nm box 19°11’06″N 108°34’48″E to 19°11’54″N 108°35’24″E |
0.6 | 14-16m (LAT +3.0m) |
Class C1 Gravel/Sand SHF=1.5 Breakout force: 22t/m² |
25,000 | 3 vessels | – Vehicle loading – Temporary storage – Pre-delivery inspections |
1. Ramp secured with 5t lashings 2. CO monitoring during loading 3. Tug on standby >10k vehicles |
– Labor charge: US$950/hr – Overtime rate: 200% after 2000 – Customs bond: US$12,000 |
Mandatory Equipment Requirements
- All Anchorages:
- Double wire rodes for >50,000 DWT (OCIMF 5.12)
- EPIRB tested within 12 months (SOLAS IV/7)
- Oil spill kit ≥200L capacity (MARPOL Annex I)
- AN-3 Special:
- Explosion-proof lighting (IEC 60079)
- Gas detectors every 50m (IMO MSC.148)
Tidal Reference Data
- Chart Datum: 0.42m below MSL
- Extreme Tides:
- MHWS: +5.9m | MLWS: +0.8m
- Max ebb current: 4.1kn at AN-1
Emergency Information
- 24hr Contacts:
- VTS: Ch 16 → 74 | +86 898 1234 5678
- Medical: Hainan Marine Hospital | Code Blue Protocol
- Abandonment Coordinates:
- NE Evacuation Zone: 19°15’00″N 108°45’00″E
- SAR Base: Sanya MRCC 19°43’N 109°12’E
