in the proper place in the grid (it is the only number available for that route). I-67 was originally the designation given to a never-built highway connecting Kalamazoo, Michigan, to the east side of Elkhart, Indiana, as part of the original Interstate numbering plan in 1957.A planning map shows a freeway along this routing intersecting the Indiana Toll Road just west of the State Road 19 interchange. The Michigan State Highway Department officially requested switching the I-67 designation to a route from Benton Harbor to Grand Rapids in 1958, and in the process proposed the northerly extension of the original I-69 from the I-80/I-90/Indiana Toll Road to Lansing. The I-67 designation was denied by the American Association of State Highway and Transportation Officials which then assigned I-196 to the Benton Harbor to Grand Rapids route, west of the I-96 junction near Grand Rapids. A third, much shorter, proposal in 2011 by the I-67 Development Corporation from the Owensboro, Kentucky, area involves continuing the proposed I-67 in Indiana along a route parallel to US 231 from Crane, Indiana, to Bowling Green, Kentucky. Much of the proposed route already exists and is close to Interstate grade. Only the northern third from Dale, Indiana, to Crane remains unfinished. It would use the Natcher Bridge to cross the Ohio River, Kentucky's I-165 and Indiana's Lincoln Parkway, an expressway facility that would need to be fully upgraded to Interstate standards. It would go around the cities of Jasper and Huntingburg in Indiana as well as Owensboro, Hartford, and Morgantown, Kentucky, and end at Bowling Green. It could also be linked to the first proposal by overlapping I-67 with the currently under construction I-69 from Indianapolis to Crane. Interstate 92 As originally proposed by the Michigan State Highway Department in 1957, I-94 from Benton Harbor to Detroit would have been numbered Interstate 92. Since then, I-92 has been a proposed number for at least two highways. Low population and natural barriers like the White Mountains have impeded economic development in northern New England. In the early 1970s, Maine, New Hampshire, Vermont and New York proposed two new Interstate Highway corridors: From Albany, New York, to Portsmouth, New Hampshire, incorporating the current route whose easternmost segment is New Hampshire Route 101. From Glens Falls, New York, to Calais, Maine (designated as I-92 and potentially linking to New Brunswick Route 1 near Calais, Maine), tracing U.S. Route 4