Barrie Creeks, Lovers Creek, and Hewitt's Creek Subwatershed Plan

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The Barrie Creeks, Lovers Creek and Hewitt’s Creek Subwatershed Plan 5.3.6 Municipal drains Municipal drains are generally located in rural agricultural areas and are intended to improve the drainage of the surrounding land. Typically they are ditches or closed systems (buried pipes or tiles) and can include structures such as buffer strips, grassed water ways, dykes, berms, stormwater detention ponds, bridges, culverts and pumping stations. Currently, a number of creeks and small rivers have been designated as municipal drains (OMAFRA, 2001). As these are direct links to watercourses, there are a number of impacts on the aquatic communities. The inputs into the drain consist of both overland flow and tile outlets and can carry contaminants, sediment, and debris into the drain. With little to no riparian vegetation, water temperature is increased and the drain therefore becomes a source of warm water in the watercourse system. Additionally, these drains come to be used as fish habitat. The issue with this is that municipal drains require maintenance to ensure they continue to work properly. While maintenance work is in progress, fish migration can be blocked and water quality can decline. The work itself may either negatively change or destroy fish habitat through altering or removal of the little riparian vegetation present, disrupting and changing bottom substrate composition and altering the width-to-depth ratio. The construction and maintenance of municipal drains is regulated under the Ontario Drainage Act, while the protection of fish habitat is regulated under the federal Fisheries Act. To ensure that drains are properly maintained, while fish habitat is minimally impacted, the Department of Fisheries and Oceans (DFO) developed a Class Authorization System. Drains are classified into six types (A, B, C, D, E and F) based on the sensitivity of fish and fish habitat found in the drain and the type of work completed. Types A, B and C are considered to contain fish and fish habitat more resilient to drain maintenance, while Types D and E have fish and habitat that are less resilient and maintenance work is determined on a case by case basis. Type F drains are intermittent and are usually dry for at least two consecutive months in the year. As fish habitat is not an issue here when dry, the only conditions for the maintenance work are that it be completed when dry and that soil is stabilized upon completion of work. Figure 5-12 illustrates the municipal drains in the Lovers Creek and Hewitt’s Creek subwatersheds, based on their drain type classification. There are no municipal drains in the Barrie Creeks subwatershed. The upstream portion of Lovers Creek (from Lockhart Rd to the headwaters), which is approximately 11% of the total stream length, has been designated as Type D municipal drain. Similarly, Hewitt’s Creek, from Lockhart Rd to headwaters, has been designated as municipal drain. As this section (29% of the creek) is dry for more than two consecutive months during the year, it is a Type F municipal drain. Chapter 5: Aquatic Natural Heritage 231
ANNE ST N BAYFIELD ST N LINE 1 S ORO-MEDONTE Municipal drains in the Barrie Creeks, Lovers Creek and Hewitt's Creek subwatersheds FERNDALE DR N SUNNIDALE RD RIDGE RD W Legend Figure 5-12 Kempenfelt Bay Road Municipal Boundary BIG BAY PT RD Watercourse TIFFIN ST MAPLEVIEW DR Drain Class A B BARRIE LOCKHART RD C D SIDERD 25 SIDERD 20 10TH LINE E F 400 HWY N YONGE ST HURONIA RD Subwatersheds ESSA 9TH LINE VETERANS DR COUNTY RD 27 ESSA RD 10TH LINE INNISFIL BEACH RD 7TH LINE 6TH LINE 0 0.5 1 2 3 4 KilometresK INNISFIL 5TH LINE This product was produced by the Lake Simcoe Region Conservation Authority and some information depicted on this map may have been compiled from various sources. While every effort has been made to accurately depict the information, data / mapping errors may exist. This map has been produced for illustrative purposes only. LSRCA GIS Services DRAFT created August 2011. © LAKE SIMCOE REGION CONSERVATION AUTHORITY, 2011. All Rights Reserved The following datasets roads, municipal boundaries and Oak Ridges Moraine are © Queens Printer for Ontario, 2011. Reproduced with Permission SIDER
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Barrie Creeks, Lovers Creek, and He
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Acknowledgements The Barrie Creeks,
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• East of the Barrie Creeks subwa
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Fish Habitat -Fish communities in t
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Table of Contents TABLE OF CONTENTS
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3.5.4 Water Temperature - thermal d
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5.3.11 Climate Change 237 5.4 ASSES
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6.5.10 Improving data management 31
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LIST OF FIGURES CHAPTER 1 Figure 1-
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Figure 2-34: Annual precipitation (
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CHAPTER 4 Figure 4-1: Hydrologic cy
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Figure 5-11: Pathways by which impe
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Figure 7-11: Riparian area with app
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Table 3-4: Surface water quality co
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CHAPTER 5 Table 5-1: Fish species c
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The Barrie Creeks, Lovers Creek and
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Creek ANNE ST N BAYFIELD ST N LINE
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7.4 Urban interactions - land use,
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Figure 7-9: An urban landscape with
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7.5 In-stream interactions - activi
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7.6 Shoreline interactions - activi
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7.7 Developing an implementation pl
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Barrie Creeks, Lovers Creek, and Hewitt's Creek Subwatershed Plan

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