To date, over 5,400 cubic tons of concrete have been poured across 12 of BORR’s bridges. This resulted in 33 total deck slabs, with 27 total pours required to reach this milestone.  

The last deck pour completed on BORR was for the Five Mile Brook bridge, which takes the dual carriageway of the BORR highway over the brook. This concrete pour saw 215 cubic metres of concrete laid out across the deck in a single day.  

Just one week earlier, 143 cubic metres of concrete were poured for the deck at the Preston River Bridge. The bridge’s beams are the longest on the BORR alignment, with all four beams required being 44 metres long.

All bridge deck pours on the BORR project commence early in the morning to take advantage of the cooler temperature and prevent premature hardening and drying of the surface. To ensure the bridges meet the required durability specifications, strict temperature and water controls are implemented throughout the pouring process. Cold water is incorporated into the concrete mix to prevent rapid heating.

With the deck pours complete, the BORR team’s focus shifts to the next phase of bridge construction which is to install the more detailed elements. This includes constructing the approach slabs, waterproofing and preparing the surface for asphalt, and the installation of railings, barriers, and lighting to equip the bridge for public use.