Stave Falls Spillway Gates Reliability Project

Stave Falls spillway gates

Increasing reliability on aging assets

Construction began on the Stave Falls Spillway Gates Reliability Project March 2011 and was completed in March 2013.

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Project background

The spillway gates and associated hoist system at Stave Falls were originally installed in the 1920s. BC Hydro is concerned about the reliability of the gates due to their design, condition and age. If the spillway gates failed to operate in a flood event, the Stave Falls and Blind Slough Dam could be overtopped.

The Stave Falls Spillway Gates Reliability Project will include the replacement of:

  • The four existing radial spillway gates;
  • The existing radial gate hoists; and,
  • The existing electrical distribution system.

Activity Date
(subject to change)
Site mobilization Mid-March 2011
Decommissioning of Spillway Gates 3 and 4 April - August 2011
Completion of Rail and Road work associated with replacement of Gantry Crane May - June 2011
Installation of new gates September - January 2012
Installation of new hoist system January - March 2012
Testing and commissioning of new gates March - April 2012
Decommissioning of Spillway Gates 1 and 2 April - July 2012
Installation of new gates August - November 2012
Installation of new hoist system November 2012 - January 2013
Testing and commissioning of new gates January - March 2013

Road closures

For the duration of the Stave Falls Spillway Gate Reliability Project, periodic closures of Dewdney Trunk Road will be required. In general, these will be short-term (10-15 minutes) or single lane closures.

We recognize the inconvenience this may cause and will complete the work safely and efficiently. We appreciate your patience during this work. Traffic control personnel will be on site.

For more information on this project, please call BC Hydro Public Consultation & Stakeholder Relations by:

Phone: 604 623 4472
Toll free: 1 866 647 3334

Trail closures

Pedestrian access over Blind Slough Dam at Stave Falls will be closed during working hours (7 a.m. - 5 p.m. weekdays).

Trails remain open; however hikers will be unable to complete the Railway/Reservoir Trail loop due to the closure of both crossings, Ruskin (24 hours a day) and Blind Slough Dam (7 a.m. - 5 p.m. weekdays).

BC Hydro will reopen pedestrian access over Blind Slough Dam when construction schedules allow (e.g. primarily evenings and weekends).

How will we keep you informed?

Project updates and/or advertisements will be published in local newspapers. If you have a question about the Stave Falls Blind Slough Dam Spillway Gate Reliability Upgrade Program, please email us.