1. Yangtze Estuary to Nanjing Segment
| No. | Obstruction | Location | Clearance (m) | Channel | Regulatory Reference | Note |
|---|---|---|---|---|---|---|
| 1 | Yangtze River Bridge (Shanghai) | 31°23’21″N 121°29’45″E | 46.0 (MHWS) | Main Channel | MSA Notice 2021-15 | Lighting system meets IALA standards |
| 2 | Sutong Cable-Stayed Bridge | 31°47’21″N 120°59’42″E | 62.0 (HAT) | North Channel | Jiangsu MSA 2023 Navigation Warning No.7 | VTS clearance required >50m air draft |
| 3 | Jiangyin Yangtze River Bridge | 31°56’43″N 120°16’08″E | 50.0 (MHWS) | Central Channel | GB 50139-2018 | Fog signal operational when visibility <1km |
2. Nanjing to Wuhu Segment
| 4 | Nanjing Yangtze River Bridge | 32°06’55″N 118°44’24″E | 24.0 (MHWS) | West Channel | Nanjing Port Authority Regulation 2022 | Strictly no passage during flood season (Jun-Aug) |
| 5 | Dashengguan Railway Bridge | 31°58’06″N 118°38’42″E | 32.0 (HAT) | South Channel | CR Navigation Notice 2023-11 | Real-time clearance monitoring available |
| 6 | Ma’anshan Yangtze River Bridge | 31°42’15″N 118°29’30″E | 32.0 (MHWS) | Central Channel | Anhui MSA 2023-08 | Special permit required for vessels >30m air draft |
3. Wuhu to Chizhou Segment
| 7 | Wuhu Yangtze River Bridge | 31°22’48″N 118°21’36″E | 24.0 (MHWS) | North Channel | Wuhu VTS Circular 2023 | Night passage prohibited for vessels >20m air draft |
| 8 | Tongling Yangtze River Bridge | 30°51’18″N 117°43’12″E | 32.0 (HAT) | Central Channel | GB 50139-2018 Amendment 2022 | Dual radar reflectors installed |
| 9 | Chizhou Port Overhead Power Lines | 30°39’00″N 117°29’00″E | 18.5 (MHWS) | Approach Channel | Chizhou EPB Notice 2023-12 | Voltage: 110kV, minimum safety distance 5m |
Critical Reference Data
- Tidal Variations:
- Yangtze Estuary: MHWS +3.2m, HAT +4.1m
- Nanjing: MHWS +2.8m, HAT +3.5m
- Chizhou: MHWS +1.5m, HAT +2.0m
- Official References:
- China MSA “Yangtze River Bridge Clearance Standards” (2023 Edition)
- GB 50139-2018 “Inland Waterway Navigation Standards”
- Anhui Provincial Maritime Safety Administration Notice 2023-15
- Chizhou VTS Real-time Navigation Bulletin (updated hourly)
- Calculation Formula:Maximum Permissible Air Draft = Published Clearance – (Current Water Level – Chart Datum)
Navigation Warnings
- Vessels exceeding 20m air draft must file passage plan 72h in advance via Yangtze River VTS system
- Special permits required for:
- Air draft >30m (apply to Provincial MSA)
- Passage during flood season (May-September)
- Night navigation for vessels >24m air draft
- Mandatory reporting points:
- Before passing under Sutong Bridge (VHF Ch.69)
- When entering Anhui province waters (VHF Ch.67)
- 30 minutes before Chizhou port approach (VHF Ch.08)
Emergency Contacts
| Authority | VHF Channel | Phone | Jurisdiction |
|---|---|---|---|
| Shanghai VTS | Ch.08/69 | +86 21 12395 | Yangtze Estuary |
| Nanjing VTS | Ch.06/67 | +86 25 12395 | Nanjing Bridge Area |
| Chizhou VTS | Ch.08/16 | +86 566 218 4999 | Chizhou Port Approach |
