sentence: during the canadian operation athena , members of 1 cer on task force 3-09 constructed a mabey logistic support bridge over a pre-existing bridge after a vehicle borne suicide bomb detonanted on the bridge close to kandahar airfield features the bridge takes military load class 80 tracked , 110 wheeled the bridge can span up to 61m lsb has a lane width of 4.2 m multi-span equipment enables the bridge to be built to any length on fixed or floating supports built on a greenfield site using grillages , ground beams and ramps the bridge is normally built using an atc244 22 ton capacity crane or a hydraulic excavator using a bucket with a lifting eye .