^fc'-ti" iV-0" 



TbuiU by USAtHo. | 



PIERHEAD 



Outer 4B' BuHt i^""^""'^.^'"'^';* '■"' , „ 

 t Superstructure 1913-14 



28-0 sfo. o^oo to I0•^l 



20'-0" - lO-ll to 5b»2l 



28-0' •■ Jt-ZI to IJ.fcJ 



5tb. 0*00 rs at stiora end. 



BREAKWATER 



c 



Figure 22. Typical structure cross sections, 

 Ashland Harbor, Wisconsin 



47 



