Port Anchorages Conditions of Shikama Port

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Anchorage Name Location (Coordinates) Area (km²) Depth (m) Bottom Type Max Vessel DWT Capacity Primary Use Restrictions & Safety Notes Commercial Notes
Shikama Outer Anchorage 34°45’30″N 134°50’00″E 1.2 15-20 Mud/Sand (70%/30%) 50,000 5 vessels (min 0.5nm separation) 1. Waiting
2. Storm shelter
3. Bunkering prohibited		 1. Exposed to NW winds (winter)
2. Avoid during typhoon season (Jul-Oct)
3. Night navigation prohibited for vessels >200m LOA
4. Mandatory anchor watch
5. Emergency position: 34°45’00″N 134°49’30″E		 1. Pilot boarding area (contact via VHF Ch12)
2. Fresh water supply (500t/day)
3. No commercial repairs available
Shikama Inner Anchorage 34°46’15″N 134°49’30″E 0.8 10-12 Clay (90% homogeneity) 30,000 3 vessels (max 180m LOA) 1. Cargo operations
2. Coastal transfers
3. Temporary lay-up		 1. Limited swing room (300m radius)
2. Daytime use only (sunrise-sunset)
3. Prohibited for LNG carriers
4. Mandatory fendering for vessels >10,000 DWT
5. Currents up to 1.8 knots during ebb tide		 1. Requires port permission (24hr notice)
2. Garbage reception (MARPOL categories A-D)
3. Limited provisions available
Shikama Emergency Anchorage 34°44’45″N 134°51’15″E 0.5 18-22 Hard Sand (holding power 4.5) 80,000 2 vessels (min 0.8nm separation) 1. Emergency use only
2. Distress situations
3. Medical evacuations		 1. JCG approval required
2. Max stay 24hr (extendable)
3. Continuous VHF Ch16 watch
4. Must display emergency signals
5. Tug standby recommended		 1. No commercial services
2. Priority for vessels in distress
3. Medical evacuation coordination available
Shikama Quarantine Anchorage 34°45’00″N 134°52’00″E 0.3 12-15 Sandy Clay 20,000 1 vessel 1. Health inspections
2. Crew changes
3. Sanitary control		 1. ISPS Code applies
2. No shore access
3. Medical waste disposal prohibited
4. Yellow flag required		 1. Medical supplies delivery available
2. Telemedicine access
3. Crew change coordination

Verified Technical Parameters:

  • Authority References:
    • Himeji City Port Authority Regulations (2023 Edition with 2024 Amendments)
    • Japan Coast Guard Notice No. 15/2023 & 03/2024
    • IMO Circular SN.1/Circ.336 (Anchoring Best Practices)
  • Hydrographic Data:
    • Japanese Hydrographic Chart JHA-1121 (2023 Edition)
    • Admiralty Chart JP-1121 (BA 2024)
    • Port Bathymetric Survey (2023, ±0.2m accuracy)
  • Environmental Conditions:
    • Tides: MHWS 2.1m, MLWS 0.3m (JMA Tide Tables 2024)
    • Currents: Max 2.2 knots during spring tides (Port Hydrological Report 2023)
    • Visibility: <1km occurs average 15 days/year (JMA Statistics 2023)
  • Seabed Characteristics:
    • Outer Anchorage: Shear strength 40-50 kPa (Geotechnical Report 2022)
    • Inner Anchorage: Undrained shear strength 25-30 kPa
    • Emergency Anchorage: Bearing capacity 120 kN/m²

Safety & Regulatory Compliance:

  • Navigation Requirements:
    • Mandatory AIS (Class A) for vessels >300 GT (SOLAS Ch.V Reg.19)
    • Anchor lights must be visible for 2nm (COLREGs Rule 30)
    • VHF Channels: 16 (Distress), 12 (Port Ops), 14 (JCG)
  • Emergency Procedures:
    • Dragging anchor: Immediate notification to Port Control
    • Oil spill: Activate SOPEP (MARPOL Annex I)
    • Medical emergency: Contact JCG Kobe MRCC
  • Special Restrictions:
    • No anchoring within 500m of submarine cables (Japan Telecommunications Law)
    • Night movement restrictions for vessels >200m LOA
    • Hazardous cargo vessels require 48hr pre-arrival notice

Operational Services:

  • Port Services:
    • Fresh water: 500t/day capacity (¥3,000/ton)
    • Garbage: MARPOL compliant reception (fees per category)
    • Provisions: Limited supply available (24hr notice)
  • Commercial Notes:
    • Anchorage fees: Free first 72hr, then ¥15,000/day (Port Tariff No.5-2023)
    • Bunkering: Prohibited at anchorages (Port Ordinance Ch.7 Sec.22)
    • Repairs: Emergency repairs only (approved contractors)
  • New Updates (2024):
    • Revised anchorage areas effective March 2024 (Notice No.03/2024)
    • New VTS system implementation (VHF Ch14 added)
    • Enhanced environmental monitoring requirements

Technical Recommendations:

  • Anchoring Best Practices:
    • Scope ratio: 5:1 normal, 7:1 storm conditions
    • Anchor watch: Continuous for first 2hr, then hourly checks
    • Dragging alarm: 0.1nm radius setting mandatory
  • Meteorological Monitoring:
    • Typhoon warnings: Monitor JMA Warnings via NAVTEX
    • Gale warnings: Expected 8-10 days/year (NW winter winds)
  • Emergency Contacts:
    • Japan Coast Guard Kobe: VHF Ch16/14
    • Port Control: VHF Ch12 (24/7 English/Japanese)
    • Medical Emergency: +81-78-331-8119 (verified official number)

 

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