Turnpike construction was made difficult by elevation, marshes, rivers, and lakes; subsoil varied from hardest granite to flaky mica hills and soft, crumbly rock formations; quantitative data concerning excavation, macadam base, bituminous pavement, steel reinforcement and structures, cement used, etc; toll system described.
Massachusetts turnpike
Traffic Quarterly
Traffic Quarterly ; 12 , n 1
1958
12 pages
Article (Journal)
English
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Engineering Index Backfile | 1940
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Engineering Index Backfile | 1939
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