Southern Illinois, Olmsted Lock & Dam Project
US Army Corp of Engineers
Prime Contractor-Washington Group/Alberici, Joint Venture
DLS Water Level is used to hold 150'-185 ton beams level during 100' lift.
Start of Lift
Zoom out of picture at left
Side shot of 150 foot beam
Beam is only 6' off ground
Telescope now needed to read Display DLS Display is barely visible on beam
First beam is raised into place
Second beam is raised into place
Two beams in place, two to go
The two cranes were loaded to near capacity. The DLS Water Level was used to hold all of the beams and legs level as they were raised into place. As the beams are raised the crane foreman calls the readings out to his crane operators. (Middle left picture) After the level is raised out of his sight, the engineer using the transit then zooms in on the DLS Level using the telescope of his transit to call readings to the crane operators. (Middle center picture) When the second beam comes to rest the DLS Water Level shows the 150' long, 185 ton beam now slightly over 100' off the ground to be 0.0", or perfectly level!
