Bui. 249, U. S. Dept. of Agriculture. 



Plate X. 



Fig. 1.— Typical Section of Concrete Roadway. 



Side ditches should be of sufficient size to dispose of all drainage; C may vary from ^'to , 

 when w exceeds 20 feet make joint in center and crown subgrade; k varies from 6 to 12 inches. 



i wets 



i round rod. 



,5 ' * 3$ * i ong/e 



PLAN 



ELEVATION 



Fig. 2.— Typical Design for Strike Board. 



Fig. 3.— Wooden Strike Board. 



Fig. 4.— Steel Tamper. 



1? 



J_ 



L-e'-J 



/£? _^Batfon i'MicA ip j 



=££ 



HondMe. 



J 



d-o 



Fig. 5.— Long Wooden Float. 



