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Engineering (8 collections)

  • Bituminous Mine Certification Records for Assistant First and Second Grade Foremen, 1923-1963

    Images of certification registers for the Assistant First and Second Grade Foremen. Information provided about each foreman includes name, place of birth, place of residence, age, more

  • Bituminous Mine Certification Records for Electricians, 1939-1963

    Images of certification records created to comply with registration, training, and examination standards for foremen specified in the act of June 9, 1911. Information is presented more

  • Bituminous Mine Certification Records for Fire Boss Examiners, 1912-1963

    Images of certification records created to comply with registration, training, and examination standards for foremen specified in the act of June 9, 1911. The first nine more

  • Internal Improvements File, 1790-1902

    Images of records relating to the construction of bridges, canals, river improvements, roads and turnpikes, public buildings and their grounds. Records cover the following date spans more

  • Meeting Minute Books, 1937-1958, 1965-1969, 1978-1989

    Images depicting the documentation of actions of the Pennsylvania Turnpike Commission, recording decisions made during Commission meetings. Topics include: resolutions; legal issues; expansions, including the Philadelphia, more

  • Schuylkill Navigation Co Schuylkill River Proj. Engineers’ Records, 1850-1940

    The collection contains drawings and contracts for projects to rehabilitate and clean up portions of the former Schuylkill Navigation Company canal basin and the adjacent Schuylkill more

  • Turnpike Comm. (PA) Engineering, Cross-Section, Plan, Profile Drawings, 1939-1964

    This collection contains original drawings executed in the field relating to rights-of-way and grading of the Original Section of the Pennsylvania Turnpike and its subsequent extensions. more

  • Turnpike Comm. (PA) Engineering, Field Survey Notebooks, 1938-1971

    This collection contains notebooks executed in the field for the construction of the Turnpike, and is arranged by construction contract number, the volumes chronicle the planning more