The reasons behind changes to the £25m Douglas Promenade scheme will be scruitinised today.

Tynwald’s environment and infrastructure policy review committee will question several senior officials and two government ministers about the scheme.

The focus will be on the recently announced changes to the scope and timetable of the refurbishment project, in particular the delay to laying the tram tracks on Loch Promenade.

In the middle of last month, an update on the scheme posted on MyProm - a government website devoted to the development.

It said that the horse tramway would now terminate at the War Memorial, with the decision made to remove the planned single track section to the Sea Terminal.

But that was wrong, the Department of Infrastructure later said.

The line from Derby Castle to Broadway is expected to be finished by Easter next year.

The tram tracks will go all the way to the Sea Terminal but not until the winter of 2022/23.

This would mean the entire scheme could drag on for nearly five years since working began in September 2018.

At the sitting of Tynwald on May 12, the then Minister for Infrastructure, Ray Harmer, said that several changes were being made to the scope and timetable of the works in response to the circumstances caused by the coronavirus pandemic.

A number of delays had already dogged the scheme before the latest timetable revision.

The committee will hear evidence from the following witnesses at the times:

9am: Alistair Burroughs, chairman of Burroughs and Burroughs Stewart Associates

10am: Bill Henderson MLC, political member of the Treasury, David Catlow, director of financial governance

10.30am: Tadhg O’Mahony, director of Auldyn Construction Ltd, and Clive Callister, managing director of Auldyn Construction Ltd and Colas (IOM) Ltd

11am: Laurence Skelly MHK, Minister for Enterprise; Mark Lewin, chief executive officer of the Department for Enterprise; Andrew Stewart, head of policy and strategy; and Tim Cowsill, head of Business Isle of Man

12 noon: Ray Harmer MHK, who was Minister for Infrastructure when the promenade scheme delay was announced; Nick Black, chief executive officer of the Department of Infrastructure; and Jeff Robinson, director of highway services

The Legislative Buildings remain closed to the public.

Members of the public can listen to the evidence live on the Tynwald website.

The recording will also be available after the session under the ’listen again’ section of the website and a Hansard transcription will be published later.

The politicians who will question the men about the scheme are Clare Barber MHK, Chris Robertshaw MHK, Marlene Maska MLC, Martyn Perkins MHK and Jane Poole-Wilson MLC.