| Anchorage Name | Location (Coordinates) | Area (km²) | Depth (m) | Bottom Type | Max Vessel DWT | Capacity | Primary Use | Restrictions & Safety Notes | Commercial Notes |
|---|---|---|---|---|---|---|---|---|---|
| Tanchon Outer Anchorage | 40°27’12″N 128°55’18″E (WGS-84) |
2.5 | 15-20 | Mud/Sand mix (30% shell content) |
50,000 | 5 vessels (min 0.5nm spacing) |
Waiting/Staging Bunkering prohibited |
1. Exposed to NE winds (gusts to 35kt) 2. Monsoon closure Jun-Sep 3. No emergency towage available |
1. Bulk carriers only 2. Max stay 72hr 3. No ship chandlers |
| Tanchon Inner Anchorage | 40°25’06″N 128°53’24″E (WGS-84) |
1.2 | 10-15 (siltation +0.5m/yr) |
Clay/Mud (shear strength 20kPa) |
30,000 | 3 vessels (bow/stern mooring required) |
Cargo operations (daylight only) |
1. Currents 3kt max 2. Prohibited zone: 500m radius Pier 3 3. Mandatory fendering system |
1. Coal/ore only 2. Loading rate 800T/hr 3. No ballast exchange |
| Tanchon Emergency Anchorage | 40°26’00″N 128°54’00″E (WGS-84) |
0.8 | 12-18 (rock outcrops at 12.5m) |
Rock/Sand (poor holding ground) |
20,000 | 2 vessels (priority to DPRK-flag) |
Distress situations only | 1. 24hr VHF monitoring 2. Medical evacuation by boat only 3. No repair facilities |
1. No cargo operations 2. Fresh water on request 3. No provisions available |
| West Holding Area | 40°26’30″N 128°52’00″E (WGS-84) |
1.5 | 18-22 | Hard Sand | 80,000 | 4 vessels | VLCC staging | 1. Unexploded ordnance risk 2. No night operations 3. Minefield 2nm west |
1. Crude oil transfers only 2. Requires military escort |
Navigation Critical Updates:
- Approach:
- Main channel depth 12m ±0.5m (2023 survey)
- Unlit buoys (maintained quarterly)
- Magnetic anomaly +7° at 40°24’30″N 128°52’30″E
- Communications:
- VHF Ch 16/12 (Port Control)
- No AIS shore stations
- Satellite phone recommended
- DGPS: Not available
Hydrographic Data:
- Tides:
- Mean range: 0.8m (springs 1.2m)
- Highest astronomical tide: 2.1m
- Currents:
- Flood: 280° at 2.5kt
- Ebb: 100° at 3.5kt
- Water Temp: -1°C (Feb) to 24°C (Aug)
Operational Constraints:
- Working Hours: 0600-1800 local (no night ops)
- Pilotage:
- Compulsory >500 GT
- 6hr notice required
- Boarding position: 40°28’00″N 128°56’00″E
- Customs:
- 72hr pre-arrival notice
- Sealed GPS during stay
- No drone photography
Emergency Protocols:
- Medical:
- No port doctor
- Basic first aid at Port Office
- Pollution:
- No OSR equipment
- Spill penalty $50,000 minimum
- Security:
- ISPS Level 1 (self-protection)
- Armed guards prohibited
Infrastructure Details:
- Berths:
- Pier 1: 180m LOA, 10m depth
- Pier 2: 150m LOA, 8m depth
- Coal Terminal: 200m LOA, 12m depth
- Cranes:
- 2 x 25T gantry cranes
- No floating cranes
- Utilities:
- Fresh water: 50T/hr at Pier 2
- No bunkering
- No waste reception
Notice to Mariners:
- This port has no IMO Category A hydrographic survey
- Local notices supersede this information
- Vessels must obtain latest NAVAREA warnings
