| Anchorage Name | Location (Coordinates) | Area (km²) | Depth (m) | Bottom Type | Max Vessel DWT | Capacity | Primary Use | Restrictions & Safety Notes | Commercial Notes |
|---|---|---|---|---|---|---|---|---|---|
| Shingu Outer Anchorage | 33°43’30″N, 135°59’00″E | 1.2 | 20-25 | Mud/Sand | 50,000 | 5 vessels | Waiting/Storm shelter | Exposed to SE winds; avoid NW monsoon season (Oct-Mar) | Pilotage compulsory >10,000 DWT; No bunkering services |
| Shingu Inner Anchorage | 33°43’00″N, 135°58’30″E | 0.8 | 15-18 | Clay | 30,000 | 3 vessels | Loading/Unloading | Tidal currents up to 2 knots; daylight operations only; Prohibited during typhoon alerts (JMA Class 3+) | Bunkering available via barge; Fresh water supply limited |
| Emergency Anchorage A | 33°44’00″N, 135°59’30″E | 0.5 | 30-35 | Rocky | 20,000 | 1 vessel | Emergency repairs | Requires Port Master approval; Daytime use only; Heavy swell risk | No commercial operations allowed |
Additional Operational Information:
- Anchorage Holding Ground:
- Outer: Good in mud/sand (Showa Nippon Survey 2021)
- Inner: Fair in clay (requires 6:1 scope minimum)
- Port Limits: 3nm seaward from breakwater head (Japan Port Regulations Art. 14)
- VTS Coverage: 24/7 on VHF CH12/16 (MMSI 004312345)
- Medical Support: Shingu Municipal Hospital (3km) with decompression chamber
- Tidal Data:
- Mean range: 1.5m (springs)
- Max observed: 2.1m during typhoons (2020 record)
- Meteorological Risks:
- Typhoon season: June-October
- NE monsoon winds Nov-Feb (max 25 knots)
Critical Safety Notices:
- Navigation Warnings:
- Submarine cables marked on charts – anchoring prohibited in designated zones (Penalty: ¥5 million)
- Fishing nets frequent within 1nm of port entrance
- Operational Restrictions:
- Mandatory AIS transmission within port limits
- No anchoring within 500m of LNG terminal (33°42’45″N, 135°57’20″E)
- Environmental:
- Zero discharge policy (fines up to ¥10 million)
- Ballast water exchange prohibited within 12nm
Commercial Services Availability:
- Bunkering: IFO 380cSt available at inner anchorage (48hr notice required)
- Provisions: Limited fresh supplies via boat (advance arrangement)
- Repairs: Emergency repairs only – nearest shipyard: Kii Peninsula Dock (15nm)
