Title

Construction of Ontario Hydro tunnels for the Sir Adam Beck - Niagara Generating Station #2

Description

LCN 10170353 TUNNEL DIMENSIONSLCN 17294973

Photographs were taken by Fred Helie, a worker on the project sometime between 1950 - 1958

en-CA Shaft at tunnel elevation. From this elevation the shaft is 32 ft diameter all the way up to the surface 350 ft. From this point down, the shaft is reduced to 24ft diameter for the next 60ft and then still reduced to 16ft diameter for the remainder of the way down to the sump pit 70ft below. Total height above tunnel floor, at Shaft no.1 350ft total height below tunnel floor to the sump pit 130ft. Height of crosscut section 42ft. Total from surface to pit 480ft. The 36 in. steel girders you see in these pictures are set at the tunnel floor elevation, or resting on the 24 ft diameter opening

Identifier

http://www.nflibrary.ca/nfplindex/show.asp?b=1&ref=oo&id=89917

Creator

Helie, Fred

Medium

Photograph

Extent

5" x 4" black & white photograph from album My Three and One Half Years Underground by Fred Helie

Provenance

Donated by Fred Helie

Date

1953

Is Part Of

Fred Helie Collection

locator

LHC FH Collection

Rights Holder

Niagara Falls Public Library

Rights

Fred Helie

Subject

Hydro Electric Power - Tunnels - Construction

Power Plants - Sir Adam Beck 2

Spatial Coverage

Canada - Ontario - Queenston

number

D10792

Format

Photograph

Date Created

2002-12-18

Date Modified

2005-01-20