134 



THE GARDENERS' CHRONICLE OF AMERICA. 



100 acres of water area, 33 acres of dry land and ()7 acres 

 of swamp, there is now 107 acres of water area and no 

 more swamp. The entire cost of the improvements, ex- 

 clusive of bridges, was about $175,000, or about $875 per 

 acre. Private properties within the lake district increased 

 in value from 200 to 700 per cent, inside of five years. 



The waterway connection between Lake of the Isles 

 and Lake Calhoun was undertaken in the spring of 1910 

 and was completed in June. 1911. The length of the di- 

 rect waterway between the lakes is 1,000 feet and the 

 width 50 feet. Three Ijridges were necessary for the ac- 

 commodation of existing road and railway traffic. Bridge 



cover extra cost for ornamentation and style of structure. 



Uridges Xos. 3 and 4 are three-centered arches, having 

 a span of 50 feet. They are also reinforced concrete 

 structures, faced with New Bedford limestone. Bridge 

 Xo. 3 has a solid stone parapet, while Bridge Xo. 4 has 

 an open parapet with spindles and posts. Both are very 

 handsome structures and fit well into the landscape, of 

 which they form a distinct feature. They are 50 feet 

 wide and 116 feet long and cost $28,000 each. 



.■\11 i)ridges rest on pile foundations. 



Bridge Xo. 4 is on the Lake of the Isles entrance to the 

 Lagoon, connecting with Cedar Lake. Thi< waterway 



SCKNE ox I,.\KE CWI-IIOU.X 0.\ D.W OF OPENING OF 

 WATEKW.W— JULY, 1911. 



RElNFOKCEl) I)OUIiLE-TR.\C Ki:|} RAII RiiAli I'KII'r.K OVER 



W.VTEKWAV HETVVEE.X L.\KE CALIIOIN .\XD 



LAKE OF THE I.^ILES. 



Xo. 1 at Lake Calh( 



116 feet wide and 168 feet long 



and accommodates the boulevard 3i2 feet wide, a traffic 

 road 28 feet wide, an electric railroad right of way 24 

 feet wide, and two 16-foot sidewalks. This bridge is an 

 elliptical arch with a span of 50 feet and with 12 feet of 



is 2,000 feet long and is spanned by a temporar)- railroad 

 and a temporary highway bridge, which will eventually 

 be replaced by permanent structures of similar type as 

 those herein described. 



During the conn'ng season Cedar Lake will be connecte<l 



lU- THE ISLE.S EXTUAXl E T(J WATERWAY 

 TO LAKE CALHOUN. 



I..\KE OF HIE ISLES ENTRANCE TO L.M.iMiX Ti i iLiAR LAKE 



head room above standard water level. It is a rein- 

 forced concrete structure faced with cut granite and cost 

 $60,000. 



Bridge No. 2 is a reinforced concrete, double track 

 railroad bridge of the flat slab type, made somewhat or- 

 namental through line and panel work on outside of 

 girders and parapets. It is a four-span structure giving 

 10 feet head room, providing for two 25-foot channel- 

 ways and two 12-foot sidewalks. This bridge was built 

 by the railroad company and cost $28,500, towards which 

 the Board of Park Commissioners contributed $3,000 to 



with Brownie Lake at the foot of the wooded hills of 

 ( ilenwood Park. This short channel, while only 500 feet 

 long, necessitates the construction of a railroad bridge 

 located directly under an overhead boulevard bridge. In 

 other words, while crossing over the railroad on the 

 boulevard bridge one crosses the waterway at the same 

 time, which is below the railroad tracks. 



The three waterways herein described and shown on 

 the accompanying plan, connect four lakes which have a 

 combined water area of 752 acres. The combined shore 

 lines of all four lakes are 15 miles and the contemplated 



