Grove City, Pennsylvania, ADAP Request No. 71-1-7-42-0035
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Pennsylvania. Airport Project at Shamokin. Northumberland County
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Cross Valley Expressway, L.R. 1052 Section 1, Luzerne County, Pennsylvania
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Historic Resource Study - Allegheny Portage Railroad National Historic Site, Pennsylvania
Mid-America Ports Study Executive Report: Mid-America's Ports
Evaluation of Fused Incinerator Residue as a Paving Material
Evaluation of Koppers Company Bituminous Pavement Rejuvenator