Thompson Creek Flood Study Report - City of Peterborough

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Thompson Creek Detailed Flood Reduction Study City of Peterborough Thompson Creek Mouth Site - Water Levels 0.54 0.52 0.50 0.48 0.46 0.44 0.42 0.40 0.38 0.36 0.34 0.32 0.30 0.28 0.26 0.24 0.22 21- Apr-06 23- Apr-06 25- Apr-06 27- Apr-06 29- Apr-06 1-May- 06 3-May- 06 5-May- 06 7-May- 06 9-May- 06 11- May- 06 13- May- 06 15- May- 06 17- May- 06 19- May- 06 21- May- 06 23- May- 06 25- May- 06 27- May- 06 29- May- 06 31- May- 06 2-Jun- 06 4-Jun- 06 Figure 4.2.2: Typical Period of Record from Gauge at Mouth of Thompson Creek 14-06605-01-W01 City of Peterborough 42 6-Jun- 06 Head of Water (m)
Thompson Creek Detailed Flood Reduction Study City of Peterborough 4.3 EXISTING DRAINAGE/STORMWATER MANAGEMENT SYSTEM A clear understanding of the existing drainage and stormwater management system is essential for the development of a detailed flood reduction plan. The following sections describe the main elements and presents mapping showing the extent of the existing system. 4.3.1 Thompson Creek Drainage Area Drawing No. SS-1 shows the storm sewer system within the Thompson Creek watershed. It should be noted that the entire area is serviced by a “separated sewer system,” i.e. separate sewers for sanitary wastes and storm runoff. This does not, however, eliminate the possibility that cross-connections exist between the systems leading to storm runoff occasionally entering the sanitary sewer system. The majority of the storm sewer system is owned and operated by the City of Peterborough (some local components within condominium developments are privately owned by the condominium corporations). Drawing No. SS-1 indicates the outfalls from the system. In general, there are three main storm sewer systems within the Thompson Creek drainage area: i) the system which drains the previously developed phases of the Waverley Heights subdivision. This has two outfalls: the larger outfall services all the streets east of the intersection of Scollard Drive and Francis Stewart Road and outlets into a drainage channel north of the intersection of those two roads. This channel will eventually be replaced by a storm sewer extending down to the stormwater management pond proposed to be constructed near the creek during the next phase of this development. The second outfall services Eldon Court and a small piece of Frances Stewart Rd. It discharges to the creek through a small stormwater management facility. ii) iii) the system which drains Armour Road into Thompson Creek. This consists of several separate pieces of sewer that drain the road north and south of the creek and the east and west sides of the road. the system which drains Ashdale Crescent East and Ashdale Crescent West into the creek. The outfall from this system is just downstream of the box culvert which crosses the creek at the north west corner of Ashdale Crescent West. These systems will be detailed further in the section describing the OTTSWMM modelling of their major/minor system flow characteristics (Section 4.4.3). 14-06605-01-W01 City of Peterborough 43
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1500 2.97 1510 2.43 1520 2.25 1530
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LEGEND EXISTING CATCHBASIN LOCATION
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Thompson Creek Flood Study Report - City of Peterborough

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