Building realistic N Scale bridges is easy with the Cornerstone Bridge Abutments kit, with parts to build your choice of two Single- or Double-Track Abutments featuring:

Common prototype design used with various types of bridges
Fits steam-, diesel- and modern-eras
Simulates poured concrete construction
Molded cut lines for easy height adjustment to 2-11/16, 2-3/16 or 1-3/4" 6.8, 5.5 or 4.4cm
Molded in gray plastic
Use with Cornerstone Single-Track Arched Pratt Truss Bridge (933-3870), Double-Track Truss Bridge (933-3242), Through Plate-Girder Bridge (933-3820), and Bridge Piers (933-3880) each sold separately - adaptable to most model bridges

Standard Assembly with Wing Walls measures: Single-Track: 7-3/8" L x 5/8" W 18.7 x 1.5cm Double-Track: 8-9/16" L x 5/8" W 21.7cm
 
Height with Headwalls: Short Headwall: 3-1/2" 8.2cm Large Headwall: 3-3/4" 9.5cm
 
Wing Walls (each): 3-1/8 x 1/8 x 3-3/8" 7.9 x 0.3 x 8.5cm