That was the Vermilion Gap, the unfinished portion of Route 2 between Baumhart Road and Huron.
I've mentioned before how Ohio Route 2 was built in stages, and the above article – which appeared in the Journal on January 5, 1967 – explains how the Vermilion Gap was going to eventually be eliminated by 1973.
According to the article, there was supposed to be an interchange at Vermilion Road. I guess the highway designers decided to move it a little east, perhaps to avoid dealing with the river right there.
And the “super dooper” roadside park mentioned in the article did became a reality, with a trail leading down to a river view. (I haven’t walked it since the late 70s; maybe I’m overdue.)
|The “Super Dooper” roadside park on Route 2|