Panel bridge variable height pier leg extension

A variable height pier leg extension method to provide adjustable leg extension to a plurality of bridge panel components each having two panel bridge pier legs for a panel bridge pier, the bridge panel components disposed in a panel bridge pier leg configuration, the variable height pier leg extension method comprising:

• mounting a variable height bridge pier support system having a plurality of variable height pier leg extension frames to a pier foundation;
• determining mounting locations at the variable height pier leg extension frames to elevate a panel bridge pier at a selected elevation;
• positioning the bridge panel components of the panel bridge pier over the variable height bridge pier support system;
• aligning the panel bridge pier legs of the bridge panel components of the panel bridge pier with the variable height pier leg extension frames of the variable height bridge pier support system;
• lowering the bridge panel components of the panel bridge pier to position the bridge pier legs at the mounting locations of corresponding variable height pier leg extension frames of the variable height bridge pier support system;
• and
• attaching the panel bridge pier legs of the panel bridge pier to the variable height pier leg extension frames of the variable height bridge pier support system at corresponding mounting locations to support the panel bridge pier at the selected elevation.

A variable height pier leg extension apparatus to provide adjustable leg extension to a plurality of bridge panel components of a panel bridge pier, the bridge panel components disposed in a panel bridge pier leg configuration, the variable height pier leg extension apparatus comprising:

• a plurality of variable height pier leg extension frames arranged in the panel bridge pier leg configuration and to be attached to a pier foundation, each variable height pier leg extension frame including a plurality of vertically spaced mounting locations to be selected to elevate the panel bridge pier legs of the bridge panel components relative to the pier foundation;
• each variable height pier leg extension frame including two pairs of channels spaced apart and attached to the pier foundation, the channels having a plurality of channel apertures to provide the vertically spaced mounting locations;
• one pair of channels of each variable height pier leg extension frame and another pair of channels of another variable height pier leg extension frame adjacent thereto configured to be coupled to a corresponding one bridge panel component of the panel bridge pier;
• and
• a plurality of mounting members to mount the bridge panel components of the panel bridge pier each to one pair of channels of two adjacent variable height pier extension frames at selected mounting locations to elevate the bridge panel components to provide a selected elevation of the bridge panel components of the panel bridge pier.