The entrance to Chichester Harbour may be shallower than is shown on your charts, according to the latest survey
According to Richard Craven, Chichester Harbour Master and Acting Conservancy Manager, a recent survey of the entrance to Chichester Harbour found that depths over the bar had a least depth of 1.1m below Chart Datum.
Reeds Almanac advises that the channel is sometimes dredged to 1.5m, although this can be reduced following storms and sailors should assume a least depth of 0.8m below Chart Datum in any case.
The update was distributed in Local Notices to Mariners No. 13 of 2015.
A visual representation of the survey results can be seen here.