Example 4 - 10-Ton Single Girder Top Running Crane with Runway Extension. 10 Ton Overhead Crane with Runway Extension. 10 Ton Crane Runway Extension. 10 Ton Overhead Crane with Jib Cranes. 10-Ton Capacity. 27.5 ft. - 0 in. bridge span with and overall runway length of 118 ft. - 8 in. 10-ton R&M Spacemaster Wire Rope Hoist.