The £45m-£55m rebuild will allow to allow larger ships to enter the dock.
Rebuilding and dredging work will be done in three phases consisting of around 300m of new quay in each to allow the existing operations to continue during the works.
Tenders or requests to participate must be sent to PD Teesport, Shaw Dewar, Vulcan Street Middlesbrough TS2 1LX. Tel: 01642877115.