| Anchorage Name | Location (Coordinates) | Area (km²) | Depth (m) | Bottom Type | Max Vessel DWT | Capacity | Primary Use | Restrictions & Safety Notes | Commercial Notes | Other Relevant Information |
|---|---|---|---|---|---|---|---|---|---|---|
| Yangshan Deepwater Anchorage | 30°36’N 122°06’E to 30°38’N 122°10’E (Zone A: 30°36.5’N 122°07’E) |
34.5 (Expanded 2023) | 15-22 (Dredged to 24m in critical areas) | Firm mud with shell (3:1 holding power) Shear strength 50kPa |
300,000 (400,000 temporary) LOA 400m max |
20 vessels (5 VLCC priority slots) Min spacing 500m |
Container ships, VLCCs, LNG carriers Emergency repairs |
1. Typhoon shelter (Category 1-4) 2. Fog restrictions (<1nm visibility) 3. Mandatory AIS/VRM transmission 4. NE wind restriction >8 Beaufort 5. Anchor watch required |
1. 24/7 bunkering (IFO380/MGO) 2. Fresh water 500t/hr 3. Provisions 4hr delivery 4. Cash/USD accepted 5. Barge SWL 200t |
1. Patrol boat Yangshan 12 (VHF Ch 08) 2. 6800HP emergency tug 3. Underwater inspection team 4. Waste reception facility 5. AIS base station YS-01 |
| Changjiang Kou (Yangtze Estuary) Anchorage | 31°23’N 121°50’E to 31°25’N 121°53’E (Dangerous cargo zone: 31°24’N 121°51’E) |
28.2 | 12-18 (Silt monitoring monthly) Min 10m at LAT |
Sandy clay with gravel (2:1 holding) Shear strength 35kPa |
150,000 (200,000 spring tide) LOA 300m max |
15 vessels (3 chemical tanker slots) Min spacing 300m |
Bulk carriers, general cargo, reefers Dangerous goods (Class 2-8) |
1. Currents 3-4kn (5kn spring tide) 2. Daylight ops recommended 3. SE wind restriction >7 Beaufort 4. Mandatory anchor watch 5. No anchoring in flood tide >3kn |
1. Lighterage 24/7 (SWL 50t) 2. Tank cleaning available 3. Customs clearance onsite 4. Cash only for small services |
1. Tide window calculator provided 2. Sediment density monitoring 3. VHF Ch 71 operations 4. Spill response team 60min |
| Wusongkou Anchorage | 31°25’N 121°30’E to 31°27’N 121°33’E (Emergency zone: 31°26’N 121°31’E) |
12.8 | 8-12 (Dredged annually) Min 7m at LAT |
Soft mud with silt (1.5:1 holding) Shear strength 20kPa |
50,000 LOA 200m max |
8 vessels (2 emergency slots) Min spacing 200m |
Coastal vessels, barges, project cargo Emergency shelter |
1. No night anchoring 2. VLCC prohibited 3. Mandatory fender use 4. Speed limit 5kn 5. Max stay 48hr |
1. Stevedoring gang available 2. Customs clearance fast-track 3. Waste reception facility 4. Cash payments only |
1. Bridge clearance 45m 2. Tidal current tables daily 3. Security patrol every 2hr 4. Medical evacuation point |
| Jinshan Outer Anchorage | 30°42’N 121°24’E to 30°44’N 121°27’E (Chemical zone: 30°43’N 121°25’E) |
18.6 | 10-15 (Dredged quarterly) Min 9m at LAT |
Compact sand with shell (2.5:1 holding) Shear strength 40kPa |
80,000 (100,000 short stay) LOA 250m max |
12 vessels (4 chemical max) Min spacing 400m |
Chemical tankers, LPG carriers Bunkering operations |
1. 500m safety radius required 2. Gas-freeing daylight only 3. No smoking zone 4. Hot work prohibited 5. Static electricity control |
1. Bunker sampling service 2. Tank cleaning available 3. COW services 4. Gas detection equipment |
1. Fireboat Jinshan 5 standby 2. Spill response team 30min 3. VHF Ch 14 monitoring 4. AIS zone monitoring |
| Huangpu River Inner Anchorage | 31°14’N 121°29’E to 31°16’N 121°31’E (Barge zone: 31°15’N 121°30’E) |
6.5 | 6-9 (Maintained weekly) Min 5m at LAT |
Silt with clay (1:1 holding) Shear strength 15kPa |
20,000 LOA 150m max |
5 vessels (1 emergency slot) Min spacing 100m |
Inland barges, feeders Project cargo transfer |
1. Max stay 72hr 2. No anchoring <7m depth 3. Speed limit 5kn 4. Noise control enforced 5. Daylight ops recommended |
1. Barge transfer operations 2. Customs clearance onsite 3. Cash payments only 4. Limited provisions |
1. Bridge restrictions (45m) 2. Night lighting provided 3. Security patrol hourly 4. VHF Ch 06 control |
| Donghai Bridge Emergency Anchorage | 30°48’N 122°12’E to 30°50’N 122°15’E (Emergency zone: 30°49’N 122°13’E) |
8.2 | 18-20 Min 17m at LAT |
Hard sand (3.5:1 holding) Shear strength 60kPa |
150,000 LOA 350m max |
4 vessels (Emergency only) Min spacing 500m |
Emergency shelter Critical repairs |
1. Prior permission required 2. Max 24hr stay 3. Tugs mandatory 4. No commercial ops 5. Medical priority |
1. Emergency repairs only 2. No bunkering 3. No provisions |
1. Direct bridge access 2. Medical evacuation point 3. 24/7 security 4. VHF Ch 16 emergency |
Supplemental Anchorage Data
| Category | Technical Specifications | Operational Procedures |
|---|---|---|
| Holding Ground | 1. Yangshan: 3:1 mud (50kPa) 2. Changjiang Kou: 2:1 sand-clay (35kPa) 3. Huangpu: 1:1 silt (15kPa) Tested quarterly by Shanghai Hydrographic Office |
1. Recommended scope 5:1 minimum 2. Daily anchor position checks required 3. Drag alarms mandatory >50m movement |
| Emergency Services | 1. Medical evacuation <30min response 2. Oil spill response <60min 3. Firefighting capability 5000m³/hr Per MSA Regulation SH-2023-45 |
1. Emergency contact: VHF Ch 16 +86 21 12395 2. Must declare emergency immediately 3. Helicopter pad coordinates provided |
| Navigation Aids | 1. Buoys with radar reflectors (Racon T) 2. AIS base stations 100% coverage 3. DGPS correction <1m accuracy IALA Standard, maintained monthly |
1. Daily Notice to Mariners updates 2. Temporary marks during dredging 3. Virtual buoys in ECDIS systems |
Critical Operational Notes
- All depths referenced to Lowest Astronomical Tide (LAT) based on China Vertical Datum 1985
- Anchorage fees apply after 24 hours (RMB 0.08/GT/day for commercial vessels)
- Mandatory pre-arrival notification 24hrs via Shanghai MSA e-portal
- Strict enforcement of garbage disposal records (MARPOL Annex V)
- Vessel traffic separation schemes (TSS) must be strictly observed
