1. Port Dolphins
| Dolphin Name | Location (WGS84) | Structure Type | Dimensions (m) | Load Capacity (tons) | Function | Last Inspection | Note |
|---|---|---|---|---|---|---|---|
| North Dolphin | 33°56’00″N 131°00’00″E | Reinforced concrete | 8×8 | 200 | Mooring assistance | 2022-11-15 | Fitted with rubber fenders |
| South Dolphin | 33°55’00″N 131°00’00″E | Reinforced concrete | 10×10 | 250 | Mooring assistance | 2023-03-22 | LED navigation lights |
| Central Dolphin | 33°55’30″N 131°00’12″E | Steel pile | 12×12 | 300 | Tanker mooring | 2023-01-10 | Class NK certified, explosion-proof |
| Emergency Dolphin | 33°56’15″N 131°00’05″E | Steel jacket | 6×6 | 150 | Contingency use | 2023-02-28 | Reserved for port authority |
2. Mooring Buoys
| Buoy ID | Location (WGS84) | Type | Diameter (m) | Max DWT | Depth (m) | Mooring Chain | Inspection Date | Restrictions |
|---|---|---|---|---|---|---|---|---|
| MB-1 | 33°56’12″N 131°00’30″E | Single-point | 5.0 | 50,000 | 15 | 105mm studless | 2023-06-15 | Max wind 25kt |
| MB-2 | 33°55’48″N 131°00’18″E | Multi-point | 4.5 | 30,000 | 12 | 90mm studlink | 2023-05-20 | Daylight only |
| MB-3 | 33°56’00″N 131°00’24″E | Emergency | 3.5 | 20,000 | 10 | 76mm studless | 2023-04-10 | Port approval required |
| MB-4 | 33°55’36″N 131°00’06″E | CALM buoy | 6.0 | 60,000 | 18 | 120mm studlink | 2023-07-01 | Oil transfer only |
3. Piers
| Pier Name | Length (m) | Width (m) | Depth (m) | Construction | Max Draft (m) | Function | Bollard Capacity (tons) | Restrictions |
|---|---|---|---|---|---|---|---|---|
| East Pier | 200 | 25 | 8 | Concrete caisson | 7.5 | General cargo | 50×4 | No hazardous materials |
| West Pier | 150 | 20 | 6 | Steel sheet pile | 5.8 | Fishing vessels | 30×6 | Fishing priority 06:00-18:00 |
| New Pier | 250 | 30 | 10 | Combined wall | 9.5 | RO-RO operations | 75×4 | Reserved for scheduled services |
| Container Pier | 300 | 35 | 14 | Gravity quay | 13.5 | Container handling | 100×6 | Gantry crane access required |
4. Berths
| Terminal Name | Berth Name | Length (m) | Depth (m) | DWT Capacity | Max LoA (m) | Berth Type | Shore Cranes | Safe Working Load (SWL) | Main Cargo | Operational Limits | Note |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Mitsukojima Main Terminal | Berth 1 | 180 | 12 | 50,000 | 170 | Multi-purpose | 2 (Liebherr LHM 280) | 40 tons | Containers, general cargo | Beaufort 6 | 24h ops, ISO 9001 certified |
| Mitsukojima Main Terminal | Berth 2 | 150 | 10 | 30,000 | 140 | General cargo | 1 (Konecranes Gottwald) | 25 tons | Bulk cargo | Beaufort 5 | Dust control required |
| Mitsukojima Oil Terminal | Oil Berth | 120 | 15 | 80,000 | 110 | Tanker | 0 | N/A | Petroleum products | Beaufort 4 | ISGOTT compliance |
| Mitsukojima Container Terminal | CT-1 | 220 | 14 | 60,000 | 200 | Container | 3 (ZPMC ship-to-shore) | 50 tons | Containers | Beaufort 6 | 200 reefer plugs |
| Mitsukojima Container Terminal | CT-2 | 240 | 16 | 80,000 | 220 | Container | 4 (ZPMC ship-to-shore) | 65 tons | Containers | Beaufort 6 | Post-Panamax capable |
5. Lighterages
| Area | Coordinates | Area (km²) | Max Draft (m) | Max DWT | Bottom Type | Holding Ground | Anchoring System | Note |
|---|---|---|---|---|---|---|---|---|
| North Anchorage | 33°57’00″N 131°01’00″E | 1.5 | 8 | 10,000 | Mud | Good | 4-point mooring | Transshipment zone |
| South Anchorage | 33°54’00″N 130°59’00″E | 1.0 | 6 | 5,000 | Sand | Fair | Single anchor | Tide dependent |
| Eastern Lighterage | 33°56’00″N 131°02’00″E | 2.0 | 7 | 8,000 | Clay | Excellent | 3-point mooring | Pilot required |
| Western Lighterage | 33°55’00″N 130°58’00″E | 0.8 | 5 | 3,000 | Gravel | Poor | Single anchor | Coastal vessels only |
6. Wharves
| Wharf Name | Length (m) | Depth (m) | Construction | Bollards (tons) | Fendering | Function | Utilities | Note |
|---|---|---|---|---|---|---|---|---|
| Fisheries Wharf | 300 | 5 | Timber piles | 20×12 | Rubber D-type | Fishing vessels | Ice, water, power | Sanitary facilities |
| Coastal Wharf | 200 | 4 | Concrete | 15×8 | Foam-filled | Small craft | Water, power | Ferry operations |
| Repair Wharf | 150 | 6 | Steel sheet pile | 30×6 | Cell fenders | Vessel maintenance | Compressed air, welding | Dry dock access |
| Bulk Wharf | 180 | 9 | Concrete block | 40×4 | Rubber cone | Bulk cargo | Conveyor system | Dust extraction |
Operational Parameters:
- Depths referenced to Chart Datum (CD) – Tokyo Peil (TP) +0.2m
- Maximum permissible conditions:
- Wind: 15m/s (operational), 25m/s (survival)
- Current: 1.5 knots (berthing)
- Wave height: 1.0m (berthing)
- Pilotage compulsory:
- Vessels >10,000 GT
- All tankers >5,000 DWT
- When LoA >150m
- Tidal characteristics:
- Mean tidal range: 2.8m
- Spring range: 3.5m
- Neap range: 2.0m
