Pennsylvania Route 664
... that although done in spurts, it took until the mid-20th century to finish paving Pennsylvania Route 664?
... that although done in spurts, it took until the mid-20th century to finish paving <b id="mwG6w"><a href="./Pennsylvania_Route_664" id="mwG60" rel="mw:WikiLink" title="Pennsylvania Route 664">Pennsylvania Route 664</a></b>?