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Fort Erie Creeks Watershed Plan - Niagara Peninsula Conservation ...

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oundary under the Drainage Act. There are however, potential spills during extreme events that<br />

have been documented in separate drainage studies.<br />

Digital Data<br />

• OBM mapping (MNR)<br />

• NPCA <strong>Watershed</strong> boundary mapping, and subcatchment boundaries<br />

• Local Management Area mapping (NWQPS 2003)<br />

• Stormwater management facilities and flooding and erosion sites (NWQPS, 2003)<br />

• Aerial Photography (Region 2002)<br />

• Land use (Town of <strong>Fort</strong> <strong>Erie</strong> Official <strong>Plan</strong>)<br />

• Municipal Drains and tile drain mapping (Town of <strong>Fort</strong> <strong>Erie</strong>)<br />

• Black, Beaver, and Frenchman’s <strong>Creeks</strong> 100 year Regulatory Floodlines (NPCA)<br />

Soils Mapping<br />

The Soils of The Regional Municipality of <strong>Niagara</strong> (1:25,000 mapping), Ministry of Agriculture<br />

and Food, 1989.<br />

Flow Data<br />

Limited flow data is available for the flow gauge in Black Creek at Stevensville. Monthly flow<br />

record files show hourly data for the period between 1991 and 1994, for some of the months.<br />

Rainfall Data<br />

Two meteorological stations have been identified by the Region for their proximity to<br />

Stevensville: one in <strong>Fort</strong> <strong>Erie</strong> (industrial park) and one in Welland (Sewage Treatment <strong>Plan</strong>t). A<br />

comparison of this rainfall data was made with the Environment Canada gauge data<br />

(EC6132470). The Region’s data covered a comparable length of time, and offered greater<br />

spatial coverage of the study area.<br />

2.2.2 Work Activities<br />

Compilation of background information and review of available historical streamflow and<br />

rainfall data has been conducted. Three meetings were held with the Town of <strong>Fort</strong> <strong>Erie</strong> drainage<br />

superintendent and engineering staff. A full field survey of all of the watercourse crossings has<br />

been completed, with the culvert information documented in Appendices ‘WS-E’ and ‘WS-F’.<br />

The majority of the work has focused on the creation the subwatershed hydrologic models, and<br />

the subsequent calibration of the Black Creek model for use in verifying flow response in the<br />

other systems.<br />

Hydrologic Model Development<br />

The hydrologic model SWMHYMO has been selected for use in this study due to its wide-spread<br />

application for both urban and rural land uses. SWMHYMO is an event-based model for which<br />

both historical and design storms can be used to generate runoff response (peaks and volumes) to<br />

rainfall. Additionally, observed rainfall events can be used for model calibration.<br />

March 2008 14 <strong>Fort</strong> <strong>Erie</strong> <strong>Creeks</strong> <strong>Watershed</strong> <strong>Plan</strong><br />

General Report (105116)

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