1. Port Dolphins
| Dolphin Name | Location (WGS84) | Structure Type | Function | Fender System | Note |
|---|---|---|---|---|---|
| North Breakwater Dolphin | 33°59’12″N 130°56’45″E | Concrete | Mooring assistance | Rubber (SWL 50t) | No cargo handling |
| South Channel Dolphin | 33°58’55″N 130°56’50″E | Steel pile | Navigation aid | N/A | Lighted marker (Fl.G.3s), JCG Ref. 7123 |
| East Basin Dolphin | 33°59’05″N 130°57’02″E | Concrete | Barge mooring | Timber (SWL 20t) | Vessels ≤100 GT, tidal restriction |
| West Auxiliary Dolphin | 33°59’08″N 130°56’28″E | Steel pile | Tug mooring | Rubber (SWL 30t) | Added per MLIT 2023-12 update |
2. Mooring Buoys
| Buoy ID | Position (WGS84) | Max DWT | Mooring Type | Holding Power (t) | Usage Restrictions |
|---|---|---|---|---|---|
| Iho-B1 | 33°59’00″N 130°56’30″E | 5,000 | Single-point | 100 | Emergency use, 24h notice required |
| Iho-B2 | 33°58’48″N 130°56’42″E | 2,000 | Multi-leg | 50 | Fishing priority, daylight only |
| Iho-B3 | 33°59’15″N 130°56’55″E | 3,500 | Single-point | 80 | Added per JCG Notice 52/2023 |
3. Piers & Wharves
| Terminal Name | Berth Name | Length (m) | Depth (m)* | DWT Capacity | Max LoA (m) | Berth Type | Shore Cranes | SWL (ton) | Main Cargo | Operational Note |
|---|---|---|---|---|---|---|---|---|---|---|
| Iho Fishing Terminal | Fishery Berth 1 | 120 | 4.5 | 1,000 | 50 | Open wharf | None | – | Fish, seafood | Wooden deck, 0600-1800 HRS |
| Iho Fishing Terminal | Fishery Berth 2 | 80 | 3.8 | 500 | 35 | Open wharf | None | – | Coastal fishery | No vessels >15m beam |
| Iho General Cargo Terminal | North Commercial Berth | 85 | 5.0 | 3,000 | 75 | Concrete quay | 1 mobile crane | 10 | Timber, aggregates | 0800-1700 HRS, JCHA certified |
| Iho General Cargo Terminal | South Commercial Berth | 60 | 4.2 | 1,500 | 55 | Concrete quay | None | – | General goods | Tidal window: +1.5m CD min |
| Iho Fuel Terminal | Tank Berth | 40 | 4.8 | 2,000 | 60 | Steel pontoon | None | – | Marine fuel | ISPS compliant, no night ops |
* All depths relative to Chart Datum (CD), Japan Hydrographic Standard.
4. Lighterages
| Area | Max Draft (m) | Vessel Type | SWL (ton) | Current Speed (kt) | Regulation Reference |
|---|---|---|---|---|---|
| Inner harbor basin | 3.0 | Barges ≤50 DWT | 5 | ≤1.5 | MLIT Ordinance No. 42-2019 |
| West Lighterage Zone | 2.5 | Fishing tenders | 2 | ≤2.0 | Local Port Rule §3.2 |
| East Transfer Area | 2.8 | Container barges | 8 | ≤1.0 | Added per Port Notice 12/2023 |
5. Additional Critical Facilities
| Facility Type | Name/ID | Specification | Regulatory Compliance |
|---|---|---|---|
| Breakwater | Main Breakwater | Length: 320m, Height: +4.5m CD | MLIT Design Standard DS-45 |
| Navigation Aid | Iho Port Light (Fl.R.4s) | 33°59’03″N 130°56’38″E | IALA Category 1, JCG Light List 7123 |
| VTS Station | Iho Port Control | VHF Ch.16/12, Radar coverage 3nm | SOLAS Chapter V compliant |
Mariner’s Safety Checklist
- Maximum allowable draft = Chart depth – 0.5m (safety margin per MLIT Notice 15/2023).
- All fuel transfers require prior approval from Yamaguchi Prefecture Environment Office.
- VHF Channel 12 mandatory within 1nm of port entrance (JCG Regulation 2023-11).
