The Isle of Man Government's Department of Infrastructure wants to build a dolphin and footbridge in Douglas Harbour.
As Manx Radio reports, plans have been published to extend one of the harbour's piers used by ferry operator, the IOM Steam Packet Company.
The DoI has submitted a planning application for a marine dolphin and footbridge on King Edward VIII Pier.
The application says the scheme would include installing a mooring platform and bollard, as well as additional work not included in the plans as it would not need approval by the planning board.
The site is in a high-risk flood zone, but the department says it has not carried out a flood risk assessment as the structure will be founded in the seabed.