Browse Collections

(1 - 8 of 8)
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Core samples taken from land tunnel, Waterworks Park, Detroit water supply system
bh016497
Core samples taken from land tunnel, Waterworks Park, Detroit water supply system
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Core samples taken from land tunnel, Waterworks Park, Detroit water supply system
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Core samples taken from land tunnel, Waterworks Park, Detroit water supply system
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Core samples taken from land tunnel, Waterworks Park, Detroit water supply system
bh016495
Core samples taken from land tunnel, Waterworks Park, Detroit water supply system
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Concrete test cylinders cut from diamond drill cores through completed tunnel lining, Detroit water supply system
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Cores taken from Springwells tunnel, Detroit water supply system