PIERS AND ABUTMENTS 230
Introduction--Rectangular Pier for a Railway Bridge--Backing for
Bridge Piers and Abutments--Pneumatic Caissons, Williamsburg Bridge--Filling
Pier Cylinders--Piers, Calf Killer River Bridge--Constructing
21 Bridge Piers--Permanent Way Structures, Kansas City Outer Belt
& Electric Ry.--Plate Girder Bridge Abutments--Abutments and Piers,
Lonesome Valley Viaduct--Hand Mixing and Wheelbarrow Work for
Bridge Piers.