Construction underground during the Niagara Tunnel Project
item
- Title
- Construction underground during the Niagara Tunnel Project
- Description
- Image shows an overbreak in the Queenston shale, of over four metres at this location ; this slowed the tunnel boring machine's progress and prompted the decision to change the tunnel route ;
- Identifier
- http://www.nflibrary.ca/nfplindex/show.asp?b=1&ref=oo&id=323576
- Creator
- Ontario Power Generation (OPG)
- Type
- Still Image
- Medium
- Digital image
- Is Part Of
- OPG (Ontario Power Generation Inc.) Collection
- Niagara Falls Public Library Digital Collections
- Date
- ca 2008
- Subject
- Hydro Electric Power - Tunnels - Construction
- Spatial Coverage
- Canada - Ontario - Niagara Falls
- Rights Holder
- Ontario Power Generation (OPG) ; inquiries for reproduction of this image must be referred to OPG
- Source
- Niagara Falls (Ont.) Public Library
- Date Created
- 2010-03-25
- Date Modified
- 2010-03-25
