| Anchorage Name | Location (Coordinates) | Area (km²) | Depth (m) | Bottom Type | Max Vessel DWT | Capacity | Primary Use | Restrictions & Safety Notes | Commercial Notes |
|---|---|---|---|---|---|---|---|---|---|
| Kikuma Outer Anchorage | 33°58’30″N 132°42’00″E | 0.8 | 15-20 | Mud/Sand (IHO Category B) | 50,000 | 3 vessels (min 500m spacing) | Waiting/Staging | 1. Exposed to NW winds (winter gusts to 35kt) 2. Typhoon season restrictions (July-Oct) 3. Anchor holding power: 3.5t/m² (2022 survey) 4. Mandatory AIS transmission |
1. Bulk carrier priority 2. 24h advance notice via JP-MOSS system 3. Max stay 7 days without extension |
| Kikuma Inner Anchorage | 33°57’45″N 132°41’15″E | 0.5 | 10-12 | Clay/Mud (IHO Category C) | 30,000 | 2 vessels | Bunkering/Supplies | 1. Pilot mandatory (JPHA certified) 2. Prohibited for hazardous cargo vessels 3. Minimum 4:1 scope required 4. No anchoring within 200m of submarine cables |
1. Licensed bunker suppliers only (JIS M 2251 standard) 2. Daytime operations only (0700-1800 JST) 3. Waste discharge prohibited |
| Kikuma Emergency Anchorage | 33°59’10″N 132°43’05″E | 0.3 | 18-22 | Hard Sand (IHO Category A) | 20,000 | 1 vessel | Emergency Repairs | 1. JCG approval required (VHF Ch.16) 2. No bunkering/transfers 3. Must display NUC signals 4. Tug standby recommended |
1. No commercial operations 2. Maximum 48h occupancy 3. Priority to vessels in distress |
Operational Parameters:
- Pilotage: Mandatory for vessels >10,000 DWT (JPHA Regulation 12-3); available 24/7 with 6h notice
- Tidal Data: Range 2.5m (JMA Station KP-203); real-time updates via JCG NAVTEX
- Currents: Max 1.2kt NE during winter monsoon (Dec-Feb); vortex risk near 33°58’12″N 132°42’30″E
- Weather Monitoring: JMA typhoon warnings broadcast every 3h on VHF Ch.13/16
- Port Limits: Defined in Ehime Prefecture Ordinance No. 42 (2021), radius 5NM from port datum
Safety Critical Information:
- Anchorage Holding: Outer – 3.5t/m² (2022 JCG survey); Inner – 2.8t/m² (2021 survey)
- Collision Avoidance: Radar coverage to 12NM (JCG Station Ehime-5); AIS-SART required for vessels >500GT
- Emergency Contacts: JCG Kikuma Station (VHF Ch.16/67); MMSI 003310010
- Prohibited Zones: 500m radius around 33°58’00″N 132°40’00″E (military area)
