Bert Koons Bridge

Problem:
Remove a damaged bridge section from a highway overpass bridge then replace it with a new box girder section.

Solution:
Two 6-line PST-e trailers were positioned at each end of the road section then the two trailers were linked together through a data cable.

Description:
Barnhart was contracted to remove a damaged bridge section from a highway overpass bridge then replace it with a new box girder section. The old girder section was struck by a tractor-trailer carrying a wind turbine tower base.

To remove the damaged bridge section, Barnhart used two 6 line PST-e trailers equipped with a power-pack for each as well as two 10' shoring stands per trailer. We positioned either trailer at each end of the section then linked the two trailers together through a data cable.

Once the bridge section was secured to the trailers and bridge rebar was removed, we removed the trailers away from the existing bridge. Barnhart took this damaged section to the hooks of the 300t and 165t hydro cranes that were waiting for us approximately 100 yards away. These cranes offloaded the section from the Goldhofer and lowered it to the ground where it will be demolished.

After the old bridge section was removed from the Goldhofer, the 300t crane was moved to a new position in front of the bridge where it was re-rigged to pick the new box girder and install it into the bridge.