Work on the cycleway along Auckland's premier waterfront street begins this week.
The Quay St cycleway is expected to open in July and the initial construction will be focused on Lower Hobson St to Commerce St.
Auckland Transport says this section is expected to be completed by mid-May.
Transport officials say disruption to traffic will be kept to a minimum by keeping lanes open during the morning and evening rush hours and closing them during less busy periods.
The 3-metre wide cycleway will be a mixture of two-way cycle lanes and a shared path.