Architecturally , Harmar is a good example of Ohio communities planned in the nineteenth century . Its grid plan begins at Fort Harmar and proceeds along both rivers away from their confluence , with the wide tree-lined streets being oriented north-south and east-west rather than paralleling the rivers . Houses in the neighborhood include examples of various nineteenth-century architectural styles ; the Federal , Greek Revival , and Gothic Revival styles are most significant , and the Colonial Revival and Italianate styles are also common . Since 1880 , Harmar has been connected by bridge to Putnam Street in Marietta proper ; the first bridge was destroyed in the Great Flood of 1913 and a swing bridge constructed in its place , although the bridge has since been replaced by a newer span that opened in September 2000 . State Route 7 formerly traversed the neighborhood , although the opening of the nearby Washington Street Bridge facilitated its rerouting away from the Putnam Street Bridge
Great Flood of 1913
Great Flood of 1913
Harmar, Marietta