Preservation of Chicago’s Promontory Point Continues

McLaren’s Study

McLaren Engineering Group conducted critical studies to support the preservation and rehabilitation of Chicago’s historic Promontory Point limestone revetment rather than replacing it with concrete. Using advanced techniques, including dive teams and drone photography, McLaren produced a coastal vulnerability analysis and a 3D rendering of the revetment, identifying the most vulnerable sections on the north and east faces.

Our findings show that restoring support materials and resetting select limestone blocks would return the structure to good condition. McLaren also presented five alternative design options, highlighting that concrete-based solutions prioritize shoreline protection but neglect historic preservation. Our work emphasizes practical, cost-effective approaches that balance protection, preservation, and community engagement.