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Building the four-track subway beneath Broadway, New york. This sectional view, taken at the new City Hall station, shows the construction of the subways by the "cut-and-cover" method, by which the material is excavated without any disturbance of the surface of the streets and sidewalks.
Artist: C. McKnight-Smith
Source: Steve Kirch, collector, and creator of a great website about SCIENTIFIC AMERICAN in the past
Restoration by: magscanner
- Created on
- Monday 6 February 2012
- Posted on
- Monday 6 February 2012
- Visits
- 1422