Mandalay Bay, outlined in purple above, was constructed between 1968 and 1973. It is comprised of 743 single-family attached and detached homes, 37 City-owned greenbelts and approximately 7 miles of public waterways. It was the first waterways development north of the Channel Islands bridge. At the time of construction, seawalls were built to create waterways throughout the newly built homes. Mandalay Bay Waterways Zone 1 Assessment District was created at the inception of the development for the maintenance of landscaping and waterways throughout the community.
When the seawalls were constructed in the mid-1960s, developers built the seawalls according to the building codes at that time, which were inferior to today’s building codes regarding seismic activity and soil and structure responses. The materials used to construct the seawalls have adversely reacted to the marine environment and began to degrade within 20 years of completion.
Over the years, City Staff and Residents have been meeting to discuss a solution to repairs and replacement of the Mandalay Bay Seawalls. Currently, City Staff and the Channel Islands Waterfront Homeowners Association (CIWHA) are working together on a path of action for funding and replacement of the Mandalay Bay Seawalls.
For more information on Mandalay Bay Waterways Zone 1 and Harbour Island Waterways Zone 2 Maintenance Districts, please visit the Waterways Assessment District page.
Current Project Updates
West Hemlock Seawall Repairs (3966-3900)
Apr. 2024: Permitting Public Hearing scheduled for May 10, 2024 with California Coastal Commission. View the Agenda.
Jan. 2024: Environmental Permitting in progress
2023: Plans, Specifications and Estimate completed
Mandalay Bay Seawall Monitoring Program (update)
May 2024: Upcoming activities scheduled.
Seawall Monitoring Program – Kayak inspection – scheduled June 12-14.
Seawall Foundation Survey – Dive Crew scheduled June 17-21.
Romany Drive Design Level Inspection – Dive Crew and Ladder work – scheduled Saturday June 22.
Jan. 2024: The City has contracted with Duncan Engineering (estimated start Spring 2024)
Previous Materials
Documents
10.06.20 | Seawall Options
07.28.20 | Public Works and Transportation Committee: City Council Commitment Staff Report
07.28.20 | Public Works and Transportation Committee: Resolution on City Council Commitment
03.06.20 | Mandalay Bay Seawall Repair Conceptual Study and Feasibility Analysis
Presentations
07.28.20 | Public Works and Transportation Committee: City Council Commitment
02.08.20 | Channel Islands Waterfront Homeowners Association Annual Meeting Presentation