pool level". The Fanshawe Reservoir has also become a valuable source of 

 water supply for London. Fanshawe is the largest of six units required to give 

 adequate flood protection and water conservation storage in the upper portion 

 of the Thames watershed. Construction on two more units will start this year, 

 and the whole system is expected to be completed by 1970. 



Fanshawe Dam is 77 feet high and 2,050 feet long, with rolled earth em- 

 bankments and a crest-gated concrete overflow spillway. The lake, at its maxi- 

 mum level, has a storage capacity of 38,880 acre-feet, and is over seven miles 

 long. At its "recreational pool level" the lake contains 10,000 acre-feet and has 

 a surface area of 650 acres. The total cost of the project, including the reservoir, 

 property, roads and bridges, was $5,315,000. Of this sum, the Government of 

 Canada paid 37 1/2 per cent, the Government of Ontario the same amount, and 

 the Upper Thames River Conservation Authority the remaining 25 per cent. 



Three large multi-purpose reservoirs have been established on the Grand 

 River watershed. These are the Shand Dam, four miles upstream from Fergus, 

 and the first large conservation reservoir built in Ontario, the Conestogo Dam 

 and Reservoir near Glen Allen and the Luther Marsh Dam and Reservoir, 

 located on the head waters of the river near Monticello. These three reservoirs 

 were constructed by the Grand River Conservation Commission. Like those on 

 the Thames River, they were financed jointly by the Government of Canada 

 (3714 per cent), the Government of Ontario (37 14 per cent) and the participa- 

 ting municipalities (25 per cent). 



In addition to the large multi-purpose dams and reservoirs, several Con- 

 servation Authorities have undertaken projects involving the building of smaller 

 dams for such purposes as irrigation water supply, municipal water supply, and 

 the improvement of summer flow. The Ausable River Construction Authority 

 constructed the Morrison Dam and Reservoir near the Town of Exeter to pro- 

 vide water to that Town and adjacent municipalities. The Napanee Valley Con- 

 servation Authority constructed a dam to enlarge the usable storage of Second 

 Depot Lake to 7,000 acre-feet. Water is discharged during low flow periods to 

 augment the flow in the Napanee River on which the Town of Napanee relies 

 for domestic and industrial water suppUes. Similarly, Morrison Dam, which is 

 near the head waters of the Ausable River, conserves water which would other- 

 wise be wasted. 



The Sixteen Mile Creek Conservation Authority recently completed the 

 construction of the Kelso Dam and Reservoir located on the Sixteen Mile Creek 

 adjacent to Highway 401. The main purpose of this reservoir is to release water 

 during periods of low flow in the lower reaches of the stream. 



Community Ponds 



Several Conservation Authorities have established community ponds. These 

 ponds, often created by the construction of a small dam, have value for recrea- 

 tion, fire protection, and as a habitat for various forms of wildlife. In addition, 

 they have considerable aesthetic value which cannot easily be measured in dol- 

 lars and cents. Some gravel pits, quarries and old mill ponds have been con- 

 verted for use as community ponds. 



The largest unit of this type is the Guelph Dam and Pond on the Speed 

 River in that City. This dam raises the water 11 feet, creating a large pond 

 which forms the nucleus of a riverside park. In order to allow the unrestricted 

 discharge of high spring runoffs, the dam is fitted with three electrically operated 

 large steel gates, each gate being 32 feet wide by 11 feet high. 



Other community ponds have been created, either by the building of new 



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