Pier, foundation construction, concrete construction: Workers guide precast concrete retaining wall panel into position just inside the flanges of the H-section structural steel soldier beam as crane lowers it following hand signals of the superintendent in foreground. The panel will rest on the square shim packs on top of the pier caps of the deep drilled reinforced concrete piers. Soil will then be backfilled and compacted against the far side of the panel(s), and the panels will be supported by the outside flange of the soldier beams against the horizontal outward force of the compacted soil. In the background are the temporary casings used to support the sides of the drilled pier holes until concrete was placed in the holes. Huron Parkway, Ann Arbor, Michigan 2005.

Pier, foundation construction, concrete construction: Workers guide precast concrete retaining wall panel into position just inside the flanges of the H-section structural steel soldier beam as crane lowers it following hand signals of the superintendent in foreground. The panel will rest on the square shim packs on top of the pier caps of the deep drilled reinforced concrete piers. Soil will then be backfilled and compacted against the far side of the panel(s), and the panels will be supported by the outside flange of the soldier beams against the horizontal outward force of the compacted soil. In the background are the temporary casings used to support the sides of the drilled pier holes until concrete was placed in the holes. Huron Parkway, Ann Arbor, Michigan 2005.