In 2016, Calpipe Security Bollards created a removable bollard solution that would protect the public in Times Square from the threat of vehicular terrorist attacks. The bollards were installed between 42nd and 47th Streets, and at the cross-streets of 7th Avenue and Broadway. CSB’s design and engineering team personnel worked with the City of NY, Time Square Alliance, and representatives of the NYPD and NYFD to satisfy the security concerns, and collaborated with the international architecture firm Snohetta, the security consultants at LiRo Group, and Tully Construction to complete the custom project.
The project required custom shallow mount bollards that would not interfere with NYC’s subway system, which sits only feet below ground. A shallow embedment system for each bollard was designed and subjected to testing and analysis to confirm that the bollards and embedment sleeves would be able to withstand the dynamic and static loads resulting from a vehicle impact.
The bollards and embedment sleeves were manufactured from Type 316 stainless steel so that they would withstand the harsh environment of New York streets. In addition, the embedment sleeve lids were supplied with a custom finish that improves traction and reduces the danger to pedestrians from slipping in wet or icy weather. The bollards were also equipped with lifting rings to reduce the effort required when installing or removing the bollard. Since maintenance was a concern for NYC officials, an architectural finish was added to the bollards reducing most of the hands-on cleaning to simply wiping down the bollards with stainless steel cleaner in order to remove dirt and prevent stains.
Each bollard satisfied the following specification requirements: a. Manufactured from T316 SS b. Custom geometric lock c. FEA static analysis required for each bollard d. All stainless steel purchased domestically e. 36” above grade height/ 12” below grade f. #4 brushed finish g. Easily removed by two people in five minutes or less h. SlipNot finish on embedment sleeve removable lid i. Adjusting locking mechanism j. Met or exceeded impact resistance requirement