Abstract : This technical note describes an Engineering With Nature (EWN) project being conducted on the east arrowhead breakwater on Lake Erie in Cleveland Harbor, OH. Background information, project objectives, approaches, and preliminary monitoring results are included with this description. The U.S. Army Corps of Engineers (USACE) Engineer Research and Development Center (ERDC) has partnered with the USACE Buffalo District (LRB) to design and implement modifications to LRB s normal maintenance procedures for breakwater repairs at this site. The structural design modifications are intended to produce greater environmental benefits to invertebrate and fish communities than would be present otherwise using standard practices. This work was funded through the U.S. Environmental Protection Agency s Great Lakes Restoration Initiative managed by the Great Lakes National Program Office.