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Pennsylvania turnpike to span state
Illustrated report on extension of Pennsylvania turnpike; total excavation is more than 25 million cu yd; road includes two 12-ft concrete lanes on each side of 10-ft grass median strip and with 10-ft shoulders at each edge; data on drilling of boreholes for blasting with Atlas RXL 127 A-2 45% dynamite and Atlas Rockmaster-2 electric caps.
Pennsylvania turnpike to span state
Illustrated report on extension of Pennsylvania turnpike; total excavation is more than 25 million cu yd; road includes two 12-ft concrete lanes on each side of 10-ft grass median strip and with 10-ft shoulders at each edge; data on drilling of boreholes for blasting with Atlas RXL 127 A-2 45% dynamite and Atlas Rockmaster-2 electric caps.
Pennsylvania turnpike to span state
Excavating Engr
Excavating Engineer ; 44
1950
Article (Journal)
English
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Engineering Index Backfile | 1940
|Engineering Index Backfile | 1940
|Engineering Index Backfile | 1939
|Engineering Index Backfile | 1939
|Bridging Pennsylvania turnpike
Engineering Index Backfile | 1940
|