Traffic Impact | Granville Street Bridge Seismic Upgrades
The following notice was provided to Emily Carr by CMHC, outlining the traffic impact to Granville Island for a capital maintenance upgrade to the Granville Street Bridge:
RE: Granville Street Bridge Upgrades March – December, 2013
Please be advised that the City of Vancouver is undertaking seismic upgrades and expansion joint replacement on the Granville Street Bridge this year. This work will affect Granville Island beginning in March.
The City of Vancouver Structures Branch is currently working through some of the pre-construction requirements with the contractor and IS expecting activity to ramp up in March. The project has 2 components:
- The first is removal of bearings at 7 pier locations and installation of new seismic isolation bearings. The bearings are located where the steel structure ‘bears’ on the concrete piers. This portion of work will improve the seismic response of the bridge in the event of an earthquake.
- The second component of work is the replacement of 11 expansion joints on the bridge deck. This is required because the existing joints have reached the end of their service life and need to be replaced.
Aside from the details of this work, there will be some impact to traffic flows in and around Granville Island and will be as follows:
Granville St. Bridge: Overnight Full Closures (12am-5am) from March 2013 – November 2013
- The full closures are required to safely lift the bridge on hydraulic jacks (1-2 inches) to undertake the bearing work. The closures WILL NOT be nightly, they will be intermittent and required about 3-4 times per month.
- Closures will be communicated through radio broadcast, website, project signage, and social media.
- It is anticipated that when the Contractor becomes familiar with the lifting procedures, the 12am-5am closure period could be reduced and potentially removed entirely. However, for Public safety, the lifting needs to be tested under full closure.
Granville St. Bridge: Daytime Lane Closures from June 2013 to October 2013
- Daytime lane closures are required to remove and replace expansion joints on the bridge deck.
- 2 lanes will be closed outside of rush hour, and 1 lane during rush hour.
- With 6-8 lanes of traffic on the Granville Bridge, lane closures are not expected to impact traffic flow significantly.
Traffic Management on Granville Island
- The Contractor will be working on Granville Island to access the underside of the bridge. Lane closures will be necessary for Contractor activity.
- The traffic management plan includes traffic control persons, signage, and will be reviewed by Granville Island Operations.
The City of Vancouver would like to draw your attention to the fact that this project is NOT related to the recent concept designs for a pedestrian/cyclist connection on the center lanes of the bridge. The bearing and expansion joint project is simply capital maintenance and seismic improvement of the bridge. Further information from the City as well as the contact details are below.