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June 2005: Construction begins in a horizontal direction with pier table installation at Pier 37 |
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The first pier table component, an edge girder, is hoisted into place on the north side of Pier 37. |
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Workers guide the first edge girder into position. |
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Aerial view of Pier 37 with pier table installation in progress. With the exception of 4-foot (1.2m) concrete caps, the tower legs at Pier 37 are at full height. |
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The pier table at Pier 37. Anchorages for stay cables are visible at the end of the edge girders. |
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During initial installation of the pier table, workers secure an edge girder to temporary supports. Shock-absorbing “lock-up” devices, designed to mitigate seismic movement, will eventually be installed in this location. |
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The first precast concrete panels are placed on the completed pier table frame. |
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The first precast concrete panels are placed on the completed pier table frame. |
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The first precast concrete panels are placed on the pier table frame. The panels are made continuous by filling the space in between with concrete, which locks the enmeshed steel reinforcing (seen in the inset) together. Steel bars are then run through the panels from end to end and post-tensioned. |
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Engineers from MDOT and HNTB stand atop the concrete panels at Pier 37. |
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Resident engineer Gowen Dishman of HNTB snaps a photo from the passenger seat during a flyover of the bridge site by ultralights. |
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The eastern end of Lake Chicot, in Arkansas |
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With the exception of 4-foot (1.2m) concrete caps, the tower legs at Pier 37 are at full height. In this web cam view, the forms on the south leg have been removed. The array of stay-cable guide pipes is visible on the north leg, |
