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Lampson lifts concrete beams for Duportail Bridge

Lampson International Transi-Lift LTL-1000 at Duportail Bridge.

Lampson partnered with Apollo Inc. to plan and execute the lift and placement of the Duportail Bridge spans. The Lampson Transi-Lift LTL-1000 with 380 feet boom and 1,600 kips of counterweight were utilized for the project.

The project is part of the S$16 billion, gas tax-support infrastructure program that helps key Tri-City projects, Richland’s Duportail Bridge, the proposed Ridgeline underpass in Kennewick, the Lewis Street overpass in Pasco and the Red Mountain interchange near West Richland. The Duportail Bridge was a combined state and City of Richland project, estimated at 25 million dollars.

The largest girder was 175 feet (53.3m) in length and weighed 228,000 pounds (103 tonnes) with the lifting gears. The furthest reach was 320 feet (97.5m).

Lampson International supplied concrete test weights for Apollo to utilize to build a pad 20’ out into the Yakima river in order to reach the Queensgate side of the bridge. We set 50 girders in four weeks and had the crane dismantled and offsite in two weeks in accordance with Apollo’s schedule. The main challenge of the project was the constant changing of the water level which was monitored on every lift.

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