g for Arch and 
Walls to be J 
Class “A” Concrete j 
Weepholes.. 
wg 
= WN ERG 
3 aes H ‘iL Ss - 
| 6 lla-> amma noon = 76 hg HS Og 
a:  eeemenascenocscersnccesens SiH! tececroaceeerep aes S| 
Fig. 50.—Section of Peekskill Tunnel, Showing Concrete Lining. 
