VICTORIA, BC — The largest single concrete pour in recent Victoria history will start at 6 a.m. Friday morning and take place over a 24 hour period at the new Johnson Street Bridge site. This massive concrete pour will involve approximately 1100 cubic meters of concrete arriving in 120 concrete truck loads and will form the foundation of the new bascule pier.
Some lane and street closures will be required, but access in both directions across the bridge will be maintained and coordinated by flaggers during the course of the concrete pour.
The road and lane closures include the following:
- A lane from the Harbour and Esquimalt Road intersection will be closed as concrete trucks will travel the opposite direction up the curb side lane and onto the bridge lane closest to the new bridge site
- The bridge lane closest to the construction site will be closed to allow concrete trucks access to the pour site
- Pandora and Johnson Streets will remain open, however bridge access from Pandora will be closed and will serve as a staging area for work crews. Drivers westbound to Esquimalt will be required to use Yates Street to access the Johnson Street Bridge.
- Trucks will exit the construction area with the guidance of flaggers along Store Street
- Flaggers will also be at the intersection of Bay Street and Tyee Road to allow concrete trucks to make left-hand turns from Bay onto Tyee
Traffic information boards and signage will be placed throughout the affected area to reroute drivers and cyclists as needed, however, these road and lane closures will result in traffic congestion and delays, so drivers and cyclists are encouraged to use alternate routes if possible. Large trucks that normally would travel down Pandora Street and across the bridge should also watch for specific detours, as larger vehicles will be rerouted down Yates Street to access the bridge. During the concrete pour, the bridge must also remain in the down position, restricting some marine traffic.Light and noise around the bridge construction site should also be expected during the 24 hour period.
A concrete pour this complex requires specialized techniques, equipment and management. For instance, 120 round-trips from the concrete plant to the bridge site requires a high-level of coordination between construction crews, concrete truck drivers and traffic control personnel. In order to ensure the massive amounts of concrete remains at a suitable temperature, specialized cooling hoses coiled throughout the concrete – much the same way a radiator controls the temperature of an engine – will control the rate of cooling and ensure the concrete cures properly.
Because certain conditions are needed for a successful concrete pour and the project was weather dependent, the decision to pour this Friday was made today. The pour has been scheduled to take place on a Friday as traffic volumes are lower and impacts to commuters can be minimized.
In 2015, the public can expect to see the majority of bridge construction work move to the downtown side of the project. Significant electrical infrastructure work to bring in a power supply to the new bridge will take place over the coming months that will result in some minor changes to traffic patterns.
Once complete, more than 50 per cent of the new bridge will be dedicated to pedestrians and cyclists. The new bridge will include on-road bike lanes, a multi-use trail for pedestrians and cyclists, and a dedicated pedestrian pathway in addition to maintaining three lanes for vehicles. Three new plaza areas for the public to sit and view the harbour and a new waterfront park are also planned enhancements to the area as a result of the bridge project.
The existing Johnson Street Bridge will continue to remain open throughout construction.
See a map of the affected roads for the pour on Friday here: JSB Road Closures (2)