沪航警877/26
Underwater obstacle clearance near A13 buoy in Changjiang Estuary by HAI WEI GONG 887, 1-20 Nov
Activeuntil 20 Nov 2026, 23:59 UTC (in 19 days)Received 31 Oct 2026, 10:51 UTC
Warning text
Positions open on the mapSHANGHAI NAVIGATION WARNING 877/26, CHANGJIANG ESTUARY.
FROM 01 TO 20 NOV, UNDERWATER OBSTACLE CLEARANCE WORK WILL BE CONDUCTED BY VESSEL HAI WEI GONG 887 WITHIN A RADIUS OF 200 METRES CENTRED ON 31-01.08N/122-06.73E, DOWNSTREAM OF A13 LIGHT BUOY IN SOUTH CHANNEL.
CAUTION ADVISED.
Location map
Open in the full mapAnalysis
Activeuntil 20 Nov 2026, 23:59 UTC (in 19 days)From 1 to 20 November, the vessel HAI WEI GONG 887 will conduct underwater obstacle clearance downstream of A13 light buoy in the South Channel of the Changjiang (Yangtze) Estuary. Work will be within a 200 metre radius centred on 31-01.08N/122-06.73E. Mariners are advised to navigate with caution.
Navigate with caution and keep clear of the work area; maintain a safe distance from the clearance vessel.
- Type
- Dredging / works · severity moderate
- Feed
- Offshore works, rigs and towingAll warnings of this kind on the map, or as an API feed.
- Location
- Changjiang (Yangtze) Estuary, downstream of A13 light buoy in South Channel
- Validity
- From 01 Nov 2026, 00:00 UTC
Until 20 Nov 2026, 23:59 UTCFROM 01 TO 20 NOV - Activity periods
- 01 Nov 2026, 00:00 UTC - 20 Nov 2026, 23:59 UTC (01 to 20 Nov)
- Hazards
- underwater obstacle clearance works, work vessel operations
- Keep clear
- 0.108 NMwithin a radius of 200 metres centred on 31-01.08N/122-06.73E
Vessels involved
- HAI WEI GONG 887 · clearance vessel
Coast stations for this area
- RCCMRCC ShanghaiChina35 NM from the area
- RCCMRSC NingboChina75 NM from the area
- RCCMRCC LianyungangChina263 NM from the area
- DSCDSC Station Dalian RadioMRCC ShanghaiChinaMMSI 004122100VHF 25, MF 100range 100 NM30 NM from the area
- DSCDSC Station Ningbo RadioMRSC NingboChinaMMSI 004122400VHF 25, MF 100range 100 NM68 NM from the area
- DSCDSC Station Wenzhou RadioWenzhou HASChinaMMSI 004122500MF 100range 100 NM196 NM from the area
- DSCDSC Station Lianyungang RadioMRCC LianyungangChinaMMSI 004122300VHF 25, MF 100range 100 NM260 NM from the area
- DSCDSC Station Seoul RadioRCC JejuRepublic of KoreaMMSI 004400701VHF 25, MF 250range 250 NM267 NM from the area
Worked out automatically from the warning text on 31 Oct 2026, 11:17 UTC. It can be wrong: the official warning text is the authority.