<p>Construction of US 60 showing grade separation</p>
<p>Humphries Gap, Milepost 45.6</p>
<ul><li>Keywords: blue ridge parkway; virginia; ridge district; section 1-f; milepost 40-60; milepost 45; roadway; grading; stone work; underpass; bridge</li></ul>
Jack E. Boucher
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