Looking west at 21st Ave. showing arches of 20th Ave. bridge

Looking west at 21st Ave. showing arches of 20th Ave. bridge
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Title: Looking west at 21st Ave. showing arches of 20th Ave. bridge
Description:

View of construction site for subway line (the Sea Beach or N line) showing two tunnels at left with iron rods projecting horizontally and vertically from top; tracks at right curving around tunnels; retaining wall at right; top of building with balustrade above tunnels at left; other buildings above retaining wall and embankment in right background; iron rods on tracks and roadbed.
Date: 1915
Location: Brooklyn (New York, N.Y.)
More Details: Title from inscription on recto.
On recto: date inscribed: Jan-3-1915.
Photographer's name inscribed on recto: "Urquhart."
Collection: Subway Construction
Subject: Subways
Retaining walls
Tunnels
Railroad tracks
Institution: Brooklyn Public Library, Brooklyn Collection.
Medium: Photographic prints.
Gelatin silver prints.
Rights: Copyright restrictions apply to the use of this image. For more information or to obtain a photographic reproduction of this image, contact the Brooklyn Collection at Brooklyn Public Library.
ID: SUB 0294