Symposium on 160-mi superhighway from Harrisburg to Pittsburgh, utilizing right of way of old South Penn Railroad, to cost $61,000,000; Evolution of Pennsylvania Superhighway; Financing Turnpike, W. A. JONES; Designing Roadway; Tunnel Design; Construction Paces Progress Schedule.
Pennsylvania Turnpike issue
Roads Streets
Roads and Streets ; 82 , n 10
1939
76 pages
Aufsatz (Zeitschrift)
Englisch
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