Boat owners say so much sand has built up in the channel over recent months, some parts of the channel are now as shallow as 1.6 metres.
Swansea MP, Yasmin Catley says the recent $2.5 million dollar dredging program lasted only 8 months before the silt became a problem again.
She's calling on the Baird government to fund a permanent dredge in next month's state budget.
Swansea Mp Yasmin Catley |