Date: | 1961 |
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Description: | International TD-30 crawler tractor (TracTracTor) working to widen U.S. Highway 40 near Berthoud Pass in Colorado. The highway wound through the Rocky Moun... |
Date: | 06 28 1960 |
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Description: | Concrete paving operation near the intersection of I-90 and U.S. Highway 12 in Sauk County. Traffic flows along the old highway to the right of the new co... |
Date: | 1960 |
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Description: | View from below looking up towards workers constructing and reinforcing the forms for the footings of the interstate highway bridge at Mirror Lake. |
Date: | 08 05 1960 |
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Description: | A construction worker welds steel to reinforce the concrete columns for the interstate highway near Timme Mill Bridge. |
Date: | 10 24 1960 |
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Description: | One construction worker guides the bucket while others prepare to spread the concrete during construction of the interstate highway near Timme Mill Road. |
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