(20 9 ) 



26. Bridges 



The plan of the driveway and path systems called for the 

 construction of six bridges; three of these, first, the lake 

 bridge, crossing the valley of the lakes near the museum 

 building; second, the long bridge, which carries the drive- 

 way across the valley of the Bronx River north of the hem- 

 lock forest; and, third, the upper bridge which crosses the 

 Bronx River at the northern end of the Garden, have been 

 carried out in masonry arches from designs by Mr. John R. 

 Brinley, landscape engineer of the Garden. A unique boul- 

 der foot-bridge of five arches, just at the northern end of the 

 hemlock forest was built from designs by the same engineer. 

 The concrete-steel bridge spanning the gorge of the Bronx 

 below the waterfall was built by the Park Department; 

 and the sixth bridge in the plan is a foot-bridge, temporarily 

 built of wood, ultimately designed in concrete, crossing the 

 Bronx River in the north meadows. 



The bridge dedicated to Linnaeus, which carries the Pel- 

 ham Parkway across the river, is appropriately located 

 between the Botanical Garden and the Zoological Park. 



27. Water Supply and Drainage 



The water supply has also been constructed in accordance 

 with the general plan and the system has been extended 

 from year to year as the development of the grounds 

 proceeded. Drinking fountains and public comfort stations 

 have been erected at various points. 



The drainage of the grounds has been carried out in ac- 

 cordance with a well-studied original plan, which provides 

 outlets for the surface drainage for the most part either into 

 the lakes or into the river, very little of it being taken into 

 the sewers. Only a small portion of the drainage system 

 still remains to be built. 



28. Shade Trees and Border Screens 



The park treatment further calls for the planting of 

 shade trees where these are needed along the driveways, 



