Ontario Power Generation will be hosting a used equipment auction at the Outlet office site on June 12th.
The final flow test will take place in June 2013.
The plan to re-erect the entire cutter-head or a portion thereof from the TBM "Big Becky" in the small park under construction at the Intake site as a lasting memorial to the Niagara Tunnel Tunnel Project highlighting the engineering feats of many contributing companies and the workers has been removed from the original plans. Unless Strabag, OPG, the city of Niagara Falls and the Niagara Parks Commission come to an agreement in the 11th hour, it would appear that the iconic cutter-head is destined to be returned to the Robbins Company for scrap. The largest single construction project in Niagara of this generation and any related tourism opportunities are destined to fade into the memories of those members that have planned, engineered and toiled to build the Niagara Tunnel. Apparently talk is cheap.
Strabag will have completed the Intake site on or before August 31st 2013. At that time the Intake area will be returned to OPG and the Niagara Parks.
The Health & Safety Components of Strabag, Hatch Mott-MacDonald and OPG accomplished a remarkable and admirable safety record during the construction of this massive tunnel. There were NO fatalities and few serious injuries recorded.
April 30th 2013 -
The final flow test scheduled for March 30th was cancelled due to significant ice in the upper Niagara River at the Intake. The final test will now take place in June 2013.
The Niagara Tunnel contains 1,300,000 m3 of water or 1,300,000,000 litres.
At a flow rate of 500 m3 of water per second it would take approximately 45 minutes to traverse the entire length of the 10.2 kilometer tunnel.
Restorations at the Intake and Outlet work sites continue.
March 27th 2013 -
Tunnel flow rate measurements continue to be conducted. Rates of 480 cm/s and 520 cm/s have been realized that meets and/or exceeds contract expectations. The final test for contract purposes will be conducted on Saturday March 30th 2013.
March 21st 2013 -
The Ontario Government and Ontario Power Generation "OFFICIALLY DECLARED THE NIAGARA TUNNEL IN SERVICE" to mark the end of the Niagara Tunnel construction.
March 19th 2013 -
The Ontario Government and Ontario Power Generation will "OFFICIALLY DECLARE THE NIAGARA TUNNEL IN SERVICE" to mark the end of the Niagara Tunnel construction at a media event to be held on Thursday March 21st 2013.
This announcement will be made in the presence of Bob Chiarelli, Ontario Minister of Energy, Jim Bradley, Ontario Minister of Environment, Kim Craitor, Member of Provincial Parliament for Niagara Falls, with OPG officials and other dignitaries at the Ontario Power Generation Visitors' Centre On Thursday March 21st 2013. This ceremony/media event will include a tour of the Sir Adam Beck #2 and an optional tour of the outlet channel.
March 18th 2013 -
Strabag is cleaning up outlet channel site. When done, the actual site restoration (final grading, create the ditches etc for water run off, top soil, grass etc.) will begin.
Dufferin Concrete has started clean up work at the rock trap area. At the Intake site they are removing the sludge from that temporary pond.
March 7th 2013 - WATER FLOWING THROUGH TUNNEL
The stop-log gates have been removed from the intake channel and the outlet gate has been opened today to allow the flow of water through the new Niagara Tunnel on a permanent basis. The gates at both ends will now remain open. The intake stop-logs have been transferred to the outlet site for indoor storage until they are ever needed again in the future. Water flow measurements will be conducted throughout the following weeks. Ontario Power Generation is now utilizing the additional water from this new tunnel for power generation at the Sir Adam Beck Hydro-Electric Power Generation Stations Group. This marks one of the last significant milestones in the construction of the Niagara Tunnel Project. Surface work at both the intake and outlet sites continue.
A flow rate of 420 cm/sec was achieved. Further measurements to follow.
March 6th 2013 -
The outlet gate of the flooded tunnel was opened for the first time beginning at 9 a.m. allowing water to flow freely from intake to outlet. This two hour opening process allowed water flow to essentially flush any construction dirt and debris from within the tunnel. The tunnel was allowed to flow freely for approximately 30 minutes before the outlet gate began the slow process to be lowered and closed again (3 hours). In order to keep the water level in the surge tank, the final two meters of the gate are lowered at a rate of 1 inch per minute.
The 150 ton gate is lifted/lowered in guides by steel cables and guide wheels. It is propelled by 10 horsepower electric motor located in the gate hoist shelter.
Once the outlet gate was closed, the stop-logs at the intake channel were re-installed to block the flow of water inside the entire tunnel. This is done to test the continuity and ability of both gates to stop the water.In the coming days both the intake stop-logs and outlet gate will be reopened to allow the water to flow once again. At this time the flow rate of the tunnel will be measured by an array of ultrasonic sensors attached to the circumference of the tunnel located in the 4th bay (approx. 45 meters inside of the tunnel).
A flow rate of 360 cm/sec was achieved.
Flushing the Niagara Tunnel - March 6th 2013
* all depth (elevation) measurements are based upon a base of "above sea level"
for more pictures please visit our Niagara Tunnel Picture Gallery
Progress to Date/Current Location
Niagara Tunnel Breakthrough Ceremony
Ontario Power Generation
Hatch Mott MacDonald Company
Castonguay Blasting Company Limited
McNally International Construction & Marine Company
Morrison Hershfield Consulting Engineers
ILF Consulting Engineers
Bermingham Construction Company
TBM Record Best
Strabag Organization Chart - Niagara Tunnel Project
Niagara Tunnel Project - Technical Facts
Niagara Tunnel Project - Vehicles, Carriers & Bridges
Niagara Tunnel Project - Chronology of Events
Voices From The Niagara Tunnel - A Living History
Rock of Ages Chart
Silurian Era Rock Chart
Strata of the Niagara Gorge Chart
Niagara River & Water Diversion
Need For The New Niagara Tunnel
Ontario Power Generation - Quarterly Reports
The St. Barbara Ceremony held inside the Niagara Tunnel on December 4th 2008
The red arrow points to the size of an average man in stark comparison to the immense size of the tunnel
On Friday June 25th 2004, the Ontario Government announced that Ontario Power Generation has been given approval to proceed with the 3rd tunnel under the City of Niagara Falls.
The first two tunnels were built during the 1950's.
On Thursday August 18th 2005, Ontario Power Generation (OPG) announced the selection of the Austrian - STRABAG AG COMPANY to build the $600 million dollar hydro tunnel. The 10.4 kilometer (6.4 miles) water tunnel will run under the City of Niagara Falls from the upper Niagara River to the Sir Adam Beck Power Stations at Queenston at a maximum depth of 140 meters (459 feet). This third tunnel project is expected to be one of the largest tunnels built in North America.
The new tunnel will parallel the existing water tunnels but at a lower depth. The existing tunnels reach a maximum depth of 100 meters (328 feet).
On Wednesday September 14th 2005, the official ground breaking ceremonies were held to announce the beginning of this massive project.
Currently, Sir Adam Beck Power Group generates 2,080 megawatts. Approximately 1,800 cubic meters (63,566 cubic feet) of water per second from the existing twin tunnels and the hydro canal supply the Sir Adam Beck Stations. The new tunnel will divert an additional 500 cubic meters (17,657 cubic feet) of water per second.
Strabag AG will also undertake remedial work on the former Ontario Power Station, the Ontario Power Station Water Intake Gate House and the former Toronto Power Station increasing the contract cost to $985 million dollars.
The project has now been projected to be completed in 2012 or 2013 from the initial date of 2009.