1. Kaighn Avenue Dam

Until the Camden County Parks Commission constructed a concrete tidal gate across the Cooper east of Kaighn Avenue in 1938, the Cooper River was navigable from the Delaware River to Grove Street in Haddonfield where it was about 40 feet wide and 10 feet deep. The tide, which today varies about 6 feet before the gate, ran as far east as Kings Highway in Haddonfield. Present tidal flows east of the Kaighn Avenue Tidal Gate are controlled to provide storm water retention capacity for rowing and other boating activities. A fish ladder was added later to allow herring to swim upstream to spawn. The ladder allows fish to migrate, driven by their sense of smell .