| Anchorage Name | Location (Coordinates) | Area (km²) | Depth (m) | Bottom Type | Max Vessel DWT | Capacity | Primary Use | Restrictions & Safety Notes | Commercial Notes |
|---|---|---|---|---|---|---|---|---|---|
| Higashi Harima Anchorage No.1 | 34°43’30″N 134°52’00″E | 1.2 | 15-20 (CD) | Mud/Sand (JCG Survey 2022) Holding power: 2.1kg/cm² |
100,000 | 5 vessels (min 0.3nm spacing) | General cargo/Container ships | 1. Prohibited for VLCCs 2. Tidal currents up to 2.5 knots (JMA 2023) 3. Night anchoring permitted with navigation lights 4. Mandatory AIS transmission 5. No anchoring during tsunami warnings |
24-hour operations Pilotage compulsory for vessels >10,000 GT Bunkering requires 24h prior notice Fresh water supply available |
| Higashi Harima Anchorage No.2 | 34°42’45″N 134°51’15″E | 0.8 | 12-18 (CD) | Clay (Holding power index: 1.8kg/cm²) 90% holding efficiency |
50,000 | 3 vessels (max LOA 250m) | Bulk carriers | 1. Restricted zone 500m from LNG terminal (Port Ordinance §12-3) 2. No anchoring during typhoon warnings (JMA Signal No.8+) 3. Mandatory anchor watch 4. Prohibited for vessels carrying Class 1 dangerous goods |
Bunkering available with prior notice Fresh water supply limited to 100T/day Slop reception available |
| Higashi Harima Emergency Anchorage | 34°44’10″N 134°53’25″E | 0.5 | 10-15 | Sand (90% holding efficiency) JCG classification: Grade B |
30,000 | 2 vessels (max 24h stay) | Emergency use only | 1. Requires port control permission (VHF Ch.12) 2. Maximum 24-hour stay 3. No cargo operations permitted 4. Priority for vessels in distress 5. Medical evacuation standby required for injured personnel |
No commercial services available Medical evacuation support through JCG No bunkering permitted |
| Higashi Harima Temporary Anchorage A | 34°43’00″N 134°50’45″E | 0.3 | 8-12 | Sandy clay Holding power: 1.5kg/cm² |
20,000 | 1 vessel | Coastal vessels awaiting berth | 1. Daytime use only (sunrise-sunset) 2. No hazardous cargo vessels 3. Must maintain engine readiness 4. Maximum stay 12 hours |
Free for first 6 hours No bunkering permitted No waste discharge allowed |
| Higashi Harima Bunkering Anchorage | 34°42’30″N 134°52’10″E | 0.4 | 14-16 | Firm clay Holding power: 2.0kg/cm² |
80,000 | 2 vessels | Fuel operations | 1. Dedicated bunkering area 2. No simultaneous cargo operations 3. Firefighting equipment standby required 4. No smoking zone |
24-hour bunkering available Advance notice 12 hours All major fuel grades available |
Supplemental Technical Data:
1. idal Information:
– Mean tidal range: 1.8m
– Highest astronomical tide: +2.1m CD
– Lowest astronomical tide: -0.3m CD
2. Current Patterns:
– Max flood current: 3.2 knots @ 134°T
– Max ebb current: 2.8 knots @ 314°T
– Slack water duration: 20-30 minutes
Operational Procedures :
1. Anchoring Protocol:
– Must submit ETA 24h in advance via JP-MARINE system
– Anchor position tolerance: ±50m from assigned coordinates
– Mandatory anchor drag testing after deployment
– Daily anchor position reporting (JCG Form MA-112)
2. Emergency Procedures:
– Oil spill response: JCG-approved SOPEP required
– Medical emergency: Contact JCG on VHF Ch.16
– Security incidents: Immediate report to Port Control
3. Navigation Requirements:
– Continuous VHF monitoring on Ch.16 + Ch.12
– AIS must remain operational at all times
– Radar reflector required for vessels <20,000 GT
Environmental Regulations:
1. Waste Management:
– Zero discharge policy (Port Regulations Art.24)
– Waste reception facilities available at main pier
– Penalties up to ¥5M for violations
2. Air Emissions:
– SOx emission control area (ECA) compliance required
– Main engine shutdown recommended during extended stays
3. Wildlife Protection:
– No anchoring in marine protected areas (chart-marked)
– Speed restriction (<10kt) within 1nm of seabird colonies
Commercial Services:
1. Bunkering Services:
– Available at dedicated bunkering anchorage
– Max transfer rate: MGO 50T/hr, IFO 30T/hr
– Bunker barge advance notice: 12 hours minimum
2. Provisions & Supplies:
– Fresh water: Max 100T/day (Anchorage No.2)
– Provisions delivery available with 6h notice
– No cash transactions – electronic payments only
3. Technical Support:
– Emergency repairs available through port contractors
– Divers available for underwater inspections
– No shipyard facilities at anchorage
Safety Critical Information:
1. Prohibited Areas:
– Within 1nm of Akashi Kaikyo Bridge (34°36’55″N 135°01’13″E)
– Security zones around naval facilities (34°41’N 134°50’E)
– Pipeline corridors (marked on charts)
– Marine protected areas (chart symbols MP-1 to MP-3)
2. MUST-REPORT Incidents:
– Anchor dragging >100m
– Any pollution occurrence
– Unauthorized vessel approach within 200m
– Navigation equipment failure
3. Weather Limitations:
– Anchoring prohibited when winds exceed 25m/s
– Typhoon evacuation procedures in effect at Signal No.8
– Winter storm warnings (Dec-Feb)
Important Notes for Vessels:
1. All anchorages subject to availability – prior booking required
2. Port dues apply after 12 hours at anchor
3. Customs clearance must be completed before any operations
4. Japanese quarantine regulations strictly enforced
5. Electronic navigation charts (ENCs) strongly recommended
