Bui. 852, U. S. Dept. of Agriculture. 
Plate IX. 
Fig. 1. — Rondout Tunnel, Catskill Aqueduct. 
Typical pressure tunnel construction, showing completed excavation and partial and completed 
concrete lining. 
FIG. 2. 
-CUT-AND-COVER SECTION OF CATSKILL AQUEDUCT, PEEKSKILL DIVISION. 
Interior of finished conduit on curve of 3,000 feet radius. 
