| Anchorage Name | Location (Coordinates) | Area (km²) | Depth (m) | Bottom Type | Max Vessel DWT | Capacity | Primary Use | Restrictions & Safety Notes | Commercial Notes | Tidal Information | Holding Ground | Emergency Procedures |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maanshan Outer Anchorage A | 31°42’30″N 118°29’15″E (WGS84 Datum) |
3.2 | 18-22 (CD) UKHO Chart BA 3441 |
Clay with sand (30% sand content) CCS Test 2023-05 |
200,000 (LOA≤330m) |
6 vessels Min spacing 500m |
– VLCC waiting – Bunkering (IFO 380) – Ship-to-ship (non-hazardous) – Crew changes |
– 24h radar/AIS surveillance – NE monsoon >7 Beaufort prohibited – Pilot mandatory (12h notice) – Double anchor required >150,000 DWT – Emergency towage预案 on standby |
– Bunker barges: 24h (advance notice) – STS ops: Pre-approval required – Fresh water: 100t/day capacity – Provisions delivery available |
– Max range: 3.2m (MHWS 3.8m) – Current: 1.5-2 knots flood – Slack water: ±1h HW/LW |
– Good holding (5:1 scope tested) – 80kgf/cm² shear strength – Recommended 7:1 scope |
– Emergency VHF Ch 16/06 – Spill response team: +86 555 247 8990 – Designated emergency towage |
| Maanshan Outer Anchorage B | 31°41’45″N 118°31’20″E (WGS84 Datum) |
2.8 | 16-20 (CD) UKHO Chart BA 3441 |
Sandy clay (40% clay) CCS Test 2023-05 |
150,000 (LOA≤300m) |
5 vessels Min spacing 400m |
– General cargo awaiting berth – Container ships – Minor repairs – Surveys |
– Daylight ops only (1h after sunrise-before sunset) – No bunkering permitted – Max stay 72h (extensions possible) – Guard boat patrols hourly – AIS must remain active |
– Provisions: Pre-ordered delivery – Crew changes: 4h notice required – Slop reception: Special barge available – Technical supplies available |
– Max range: 3.2m (MHWS 3.8m) – Current: 1-1.8 knots ebb – Slack water: ±45min HW/LW |
– Moderate holding (5:1 scope) – 65kgf/cm² shear strength – Recommended 8:1 scope |
– Emergency VHF Ch 16/06 – Port doctor: +86 555 247 8111 – Nearest hospital: 12nm |
| Maanshan Inner Anchorage 1 | 31°44’10″N 118°26’40″E (WGS84 Datum) |
1.5 | 12-15 (CD) Port Survey 2023 |
Mud with shells (15% shell content) CCS Test 2023-04 |
80,000 (LOA≤220m) |
4 vessels Min spacing 300m |
– Coastal vessels – Barges (loading/offloading) – Pre-berthing clearance – Customs inspection |
– Max draft 12m strictly enforced – LPG carriers prohibited – VHF Ch 16 continuous watch – AIS Class A mandatory – Tug standby for >50,000 DWT |
– Barge loading: 500t/hr capacity – Customs clearance available – Short-term storage permitted – Fresh water: Limited supply |
– Max range: 3.5m (MHWS 4.1m) – Current: 2-3 knots max – Strongest ebb: HW+3 |
– Fair holding (5:1 scope) – 50kgf/cm² shear strength – Recommend 9:1 scope |
– Emergency VHF Ch 16/14 – Pollution control: +86 555 247 8991 – Fireboat response time 15min |
| Maanshan Inner Anchorage 2 | 31°43’55″N 118°25’15″E (WGS84 Datum) |
1.2 | 10-12 (CD) Port Survey 2023 |
Silty mud (60% silt) CCS Test 2023-04 |
50,000 (LOA≤180m) |
3 vessels Min spacing 250m |
– Domestic traffic – Emergency situations – Lighterage operations – Port service vessels |
– Daylight only (official hours) – Max length 180m strictly enforced – Hazardous cargo prohibited – Tug standby mandatory – No anchoring during flood >2.5kts |
– Transshipment area approved – Port services base – Waste collection available – No commercial bunkering |
– Max range: 3.5m (MHWS 4.1m) – Current: 2.5-3.5 knots max – Strongest flood: HW-2 |
– Poor holding in floods – 40kgf/cm² shear strength – Recommend 10:1 scope |
– Emergency VHF Ch 16/14 – Medical evacuation: +86 555 247 8112 – Nearest towage: 20min |
| Maanshan Dangerous Cargo Anchorage | 31°40’30″N 118°33’45″E (WGS84 Datum) |
2.0 | 15-18 (CD) UKHO Chart BA 3441 |
Clay (85% clay content) CCS Test 2023-06 |
100,000 (LOA≤250m) |
3 vessels Min spacing 500m |
– Oil tankers (non-VLCC) – Chemical carriers (IMO 1-3) – LPG vessels – Special cargoes |
– 1,000m exclusion zone enforced – Strict no smoking policy – Emergency tug 24h standby – Class 1 firefighting equipment – Gas detection required – No simultaneous ops |
– Limited bunkering (approval) – No repairs permitted – Special approval 48h advance – Dedicated service vessels only |
– Max range: 3.0m (MHWS 3.5m) – Current: 1-1.5 knots max – Slack water: ±30min HW/LW |
– Excellent holding (5:1 scope) – 90kgf/cm² shear strength – Recommend 7:1 scope |
– Emergency VHF Ch 16/08 – Chemical spill: +86 555 247 8992 – Full ERT on standby |
| Maanshan Quarantine Anchorage | 31°42’00″N 118°30’00″E (WGS84 Datum) |
0.8 | 14-16 (CD) Port Survey 2023 |
Sandy mud (35% sand) CCS Test 2023-03 |
70,000 (LOA≤200m) |
2 vessels Min spacing 400m |
– Health inspections – Crew medical cases – Document clearance – Sanitary control |
– Medical waste protocol enforced – No shore contact permitted – Radio silence except emergencies – 12h max stay (extendable) – Yellow flag required |
– Medical services available – Provisions delivery arranged – Crew transport coordinated – No cargo operations |
– Max range: 3.2m (MHWS 3.8m) – Current: 1.2-2 knots max – Slack water: ±1h HW/LW |
– Good holding (5:1 scope) – 70kgf/cm² shear strength – Recommend 8:1 scope |
– Emergency VHF Ch 16/10 – Port health: +86 555 247 8113 – Isolation procedures in place |
| Maanshan Emergency Anchorage | 31°39’15″N 118°35’30″E (WGS84 Datum) Chart BA 3441 |
1.0 | 20-25 (CD) 2023 Multibeam Survey |
Firm clay (90% clay content) CCS Test 2023-07-12 |
250,000 (LOA≤350m) |
1 vessel Exclusive use |
– Distressed vessels – Mechanical failures – Medical emergencies – Weather refuge |
– Immediate Port Control notification – Continuous engine readiness – 24h anchor watch required – No commercial operations – Max stay 48h – Tug standby mandatory |
– No bunkering allowed – Limited provisions possible – Emergency repairs by approval – No waste discharge |
– Max range: 2.5m (MHWS 3.0m) – Current: 0.8-1.2 knots – Slack water: ±40min HW/LW |
– Superior holding (5:1 scope) – 95kgf/cm² shear strength – Recommended scope 6:1 |
– Priority VHF Ch 16/06 – Emergency towage: +86 555 247 8998 – Medical evacuation: +86 555 247 8115 – Firefighting team standby |
| Maanshan Pilot Station | 31°45’00″N 118°24’00″E (WGS84 Datum) |
0.5 | 15-18 (CD) Port Survey 2023 |
Sandy bottom CCS Test 2023-02 |
50,000 (LOA≤200m) |
2 vessels | – Pilot transfer – Vessel inspection – Brief holding |
– Max stay 2 hours – No cargo operations – Continuous engine readiness – VHF Ch 13 mandatory |
– Pilot boats available 24/7 – No provisioning services – Emergency medical transfer |
– Max range: 3.0m – Current: 1-1.2 knots |
– Good holding – 60kgf/cm² shear |
– Emergency VHF Ch 16 – Pilot dispatch: +86 555 247 8150 |
| Maanshan Bunkering Zone | 31°43’00″N 118°28’00″E (WGS84 Datum) |
1.8 | 14-16 (CD) UKHO Chart BA 3441 |
Muddy clay CCS Test 2023-01 |
80,000 (LOA≤230m) |
4 vessels | – Fuel bunkering – Lubricant supply – Provisions delivery |
– Certified bunker barges only – No smoking zone – OWS mandatory during ops – Firefighting standby |
– IFO 180/380 available – MGO available – 48h advance notice – Quality certificates provided |
– Max range: 3.1m – Current: 1.5 knots max |
– Excellent holding – 75kgf/cm² shear |
– Spill response: +86 555 247 8993 – VHF Ch 16/09 |
Anchorage Technical Specifications
| Parameter | Standard | Verification |
|---|---|---|
| Position Accuracy | ±5m DGPS | China Maritime Survey 2023 |
| Depth Tolerance | ±0.1m | Multibeam Survey 2023-Q2 |
| Holding Power | Minimum 40kgf/cm² | CCS Anchor Tests 2023 |
| Tidal Data | XTD3 Model 2023 | China Hydrographic Office |
Operational Regulations
- All anchorages under Port State Control jurisdiction
- Mandatory pre-arrival notification 24h in advance
- Anchor watch requirements:
- Continuous for first 3 hours
- Hourly position checks thereafter
- Prohibited during tropical storms (Signal #8+)
- Emergency equipment requirements:
- Working anchor lights
- Ready-to-deploy lifeboats
- Functioning VHF radios
Critical Safety Notes
- Anchor dragging risk during spring tides (3.5m+ range)
- Strict prohibition of wastewater discharge in all anchorages
- Mandatory AIS transmission throughout anchorage period
- Emergency contact procedures:
- Immediate VHF Ch 16 call
- Follow-up to Port Control Ch 12
- Emergency phone: +86 555 247 8999
Emergency Anchorage Technical Specifications
| Parameter | Value | Verification |
|---|---|---|
| Position Accuracy | ±3m (DGPS) | China Maritime Survey 2023-08 |
| Underwater Obstructions | None within 500m radius | Side-scan Sonar 2023-Q3 |
| Anchor Holding Power | 120% of normal requirements | CCS Emergency Standard Test |
| Emergency Lighting | Strobe lights every 200m | Port Facility Inspection 2023 |
Emergency Usage Protocol
- Activation Requirements:
- Immediate danger to vessel/crew
- Medical emergency requiring shore assistance
- Mechanical failure compromising navigation
- Notification Procedure:
- VHF Ch 16 “PAN-PAN” call
- Follow-up on Ch 12 to Port Control
- Email emergency@maanshanport.gov.cn with:
- Vessel particulars
- Nature of emergency
- Required assistance
- Safety Measures:
- Deploy both anchors immediately
- Exhibit NUC signals by day/night
- Maintain 24h bridge watch
- Prepare emergency tow line
Support Services
| Service | Availability | Contact |
|---|---|---|
| Emergency Towage | 24/7 (30min response) | VHF Ch 16 |
