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Bridges 



The four stone bridges constructed in previous years 

 are in good order and have required no repairs, except 

 a few hours' time of a mason for pointing. The driveway- 

 over the Long Bridge and its curb lines have settled slightly 

 in places between the arches, so that the vertical curve 

 is not quite perfect; this is due to the unequal depth of 

 filling which was necessary over and between the arches. 

 It is desirable that this curve be made true at such time as 

 may be convenient. The path approaches to all these 

 bridges are now complete. At the Boulder Bridge an ex- 

 periment was made in the spring with planting-pockets 

 at eight points, using the shrub yellow-root (Xanthor- 

 rhiza apiifolia), a plant which spreads rapidly and widely 

 by rootstocks. This planting was successful, but it will 

 apparently have to be protected by railings as it has been 

 more or less trampled. 



During the year the bridge planned by the Department 

 of Parks to replace the present wooden bridge near the 

 Lorillard Mansion has been constructed, spanning the 

 gorge of the Bronx River a little to the south of the old 

 bridge, and providing a new entrance to the hemlock grove. 

 This bridge will be a great convenience and it affords a 

 splendid view of the gorge and the rapids of the Bronx. 



Water Supply 



The six-inch distributing main was extended during 

 the year from the plaza north of the Lake Bridge completely 

 around the northern end of the Garden along the driveway 

 to the eastern end of the Long Bridge, connecting there 

 with the main previously laid. It was also extended 

 southward from a point opposite the stable along the un- 

 finished driveway, and work is still in progress on that 

 line; about 4,300 feet of this pipe was laid, and we still 

 have 800 feet on the grounds ready for laying. 



