1. Port Dolphins
| Dolphin Name | Coordinates (WGS84) | Construction | Design Load | Fender System | Lighting | Certification |
|---|---|---|---|---|---|---|
| North Main Dolphin | 36°30’05″N 140°37’20″E | Pre-stressed concrete (2015) | 200t bollard pull | Super Cone Fenders (H=2000mm) | LED 200lux | ClassNK PM-1023 |
| South Auxiliary Dolphin | 36°29’45″N 140°37’35″E | Steel jacket (2010) | 120t bollard pull | Cell Fenders (D=1500mm) | Halogen 150lux | MLIT #4456 |
| Central Mooring Dolphin | 36°29’55″N 140°37’25″E | Composite steel-concrete (2018) | 180t bollard pull | Dual Arch Fenders (H=1800mm) | LED 250lux | ISO 3004:2018 |
| Oil Terminal Dolphin | 36°30’12″N 140°37’08″E | Fireproof concrete (2020) | 150t bollard pull | Fire-resistant fenders | Explosion-proof | IECEx 001 |
2. Mooring Buoys
| Buoy ID | Position | Type | Max DWT | Holding Power | Chain Scope | Inspection Date |
|---|---|---|---|---|---|---|
| MB-1 | 36°29’30″N 140°37’15″E | CALM (SBM) | 50,000 | 85t SWL | 5:1 at 25m | 2023-11-15 |
| MB-2 | 36°29’15″N 140°37’30″E | Multi-point | 30,000 | 60t per leg | 3:1 at 18m | 2023-10-22 |
| MB-3 | 36°30’00″N 140°37’10″E | LALM | 70,000 | 120t SWL | 6:1 at 30m | 2024-01-10 |
| MB-4 | 36°29’20″N 140°37’25″E | Emergency | 20,000 | 40t SWL | 4:1 at 15m | 2023-12-05 |
3. Comprehensive Berth Details
| Terminal | Berth | Dimensions (LxD in m) | Max Draft | DWT Range | LOA Limit | Facilities | Cargo Handling | Hazard Class |
|---|---|---|---|---|---|---|---|---|
| General Cargo | GC-1 | 200×10 | 9.5m | 5,000-20,000 | 180m | 2x25t cranes, 50t mobile | Breakbulk, Ro-Ro | Non-hazardous |
| GC-2 | 180×9 | 8.8m | 3,000-15,000 | 160m | 15t crane + forklifts | Project cargo | Class 3 | |
| Bulk Terminal | BL-1 | 250×14 | 13.8m | 30,000-60,000 | 220m | 40t gantry, conveyor | Coal/ore (3,000t/hr) | Dust zone |
| BL-2 | 220×12 | 11.9m | 20,000-40,000 | 200m | 30t gantry, unloader | Grain (1,200t/hr) | ATEX Zone 22 | |
| BL-3 | 150×8 | 7.8m | 5,000-10,000 | 120m | Grab cranes | Fertilizers | IMDG Class 5.1 | |
| Oil Terminal | OT-1 | 280×16 | 15.7m | 30,000-80,000 | 250m | 2×16″ loading arms | Crude (5,000m³/hr) | Zone 0 |
| Container | CT-1 | 300×15 | 14.8m | 10,000-50,000 | 240m | 2x50t STS cranes | Containers (25 moves/hr) | Non-hazardous |
4. Lighterage Facilities
| Area | Type | Max Beam | Air Draft | Tide Window | Equipment | Security |
|---|---|---|---|---|---|---|
| Inner Harbor | Barge Dock | 20m | 15m | ±2.0m CD | 10t cranes x2 | ISPS L1 |
| Anchorage A | Floating Transfer | N/A | N/A | Slack water ±1hr | 30t floating crane | ISPS L2 |
| River Mouth | Coastal Barge | 15m | 12m | +1.5m CD min | Shore cranes | ISPS L1 |
| Emergency Zone | All Types | 25m | 18m | All tides | None | ISPS L3 |
5. Wharf Structural Data
| Wharf ID | Construction | Deck Load | Seismic Standard | Berthing Energy | Corrosion Protection | Last Survey |
|---|---|---|---|---|---|---|
| W-1 | RC piled | 5t/m² | JIS A 8953 | 350kJ | Cathodic + coating | 2023-09 |
| W-2 | Steel sheet pile | 3t/m² | JIS A 8953 | 200kJ | Anodes only | 2023-06 |
| W-3 | Gravity block | 10t/m² | JIS A 8953+ | 500kJ | None | 2024-02 |
Critical Operational Parameters
- Tidal datum: Hitachi Port Base Level (HPBL) = CD -0.3m
- Underkeel clearance: Minimum 10% of draft or 1.0m (whichever greater)
- Mooring line pretension: 30-50% of MBL depending on weather
- Maximum allowable squat: 0.15 x draft
- Emergency shutdown zones: 500m radius for oil berths
