Date: | 1960 |
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Description: | Excavation for bridge column footings for the Mirror Lake Bridge. |
Date: | 1960 |
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Description: | Aerial view of the intersection of the interstate highway with USH 12 between Baraboo and Lake Delton with the initial grading largely completed. |
Date: | 1960 |
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Description: | Aerial view of the construction of the interstate highway near Mirror Lake, showing only the early stages of the bridge construction. |
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