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: | 07 1971 |
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Description: | Color photograph of a worker operating an International TD-20C crawler tractor (TracTracTor) at a bridge construction site. Other construction workers are ... |
Date: | 1972 |
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Description: | Three-quarter view from front left of a man operating a TD-25 on the side of a hill. There is a valley in the background. Vecellio and Grogan, Inc., workin... |
Date: | 1973 |
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Description: | Four 350 Pay Haulers lined up in a row. There is a tanker truck parked on the left. Morrison-Knudsen Co., Inc. and Gordon H. Ball, Inc., a joint venture ha... |
Date: | 1973 |
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Description: | Man operating a TD-25. Shepherd Construction Company, Inc., has sub-contract for grading and drainage work on section of Georgia Route 333. |
Date: | 1973 |
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Description: | Man operating 433 Pay Scraper. Shepherd Construction Company, Inc., has sub-contract for grading and drainage work on section of Georgia Route 333. |
Date: | 1973 |
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Description: | Man operating 433 Pay Scraper. Shepherd Construction Company, Inc., has sub-contract for grading and drainage work on section of Georgia Route 333. |
Date: | 1973 |
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Description: | Three-quarter view from front left of a man operating a TD-25 to move earth. Shepherd Construction Company, Inc., has sub-contract for grading and drainage... |
Date: | 11 12 1971 |
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Description: | Elevated view of a man operating 295b Pay Scraper. Black Rock Contracting, Inc., has contract to construct 3.26 miles of Interstate I-79 in Clay County. |
Date: | 11 12 1971 |
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Description: | Man operating 295b Pay Scraper on a steep grade. Black Rock Contracting, Inc., has contract to construct 3.26 miles of Interstate I-79 in Clay County. |
Date: | 11 12 1971 |
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Description: | Man operating 295b Pay Scraper on a steep grade, two more are visible in the background. Black Rock Contracting, Inc., has contract to construct 3.26 miles... |
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