20161003
11444600
1.0
Custom Metadata Editor
FALSE
20251007
15112200
V_STEEPSLOPEWITHSETBACK
002
598231.352100
662566.263000
4867520.844100
4946940.522000
1
Projected
GCS_North_American_1983
Linear Unit: Meter (1.000000)
NAD_1983_UTM_Zone_17N
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20251007
Version 6.2 (Build 9200) ; Esri ArcGIS 10.9.1.28388
Apparent Valleyland with Setback
withheld
2019-02-19T00:00:00
JB
LSRCA
gis@lsrca.on.ca
LSRCA
LSRCA
Director, Development Services
1
-79.775718
-78.949564
44.669109
43.942858
LSRCA Scientific Watershed
slope erosion setback
apparent valleyland
regulated apparent valleyland
open data
slope erosion setback, apparent valleyland
<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Riverine Erosion Hazards due to stream bank erosion and slope stability. Hazard areas contain a 15 m setback. This layer is one of the 5 components which comprise Ontario Regulation 179/06. </SPAN></P></DIV></DIV></DIV>
© LAKE SIMCOE REGION CONSERVATION AUTHORITY, (insert current year). All Rights Reserved
<DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="margin:0 0 7 0;"><SPAN><SPAN>Contains Information made available under </SPAN></SPAN><A href="https://www.lsrca.on.ca/Pages/GIS-Open-Data-Licence.aspx"><SPAN><SPAN>Lake Simcoe Region Conservation Authority Open Data Licence v1.0.</SPAN></SPAN></A></P></DIV></DIV></DIV>
Layer was previously named Slope Erosion with Setback.
Feature Class
dataset
EPSG
6.11(3.0.1)
3047
Simple
FALSE
3047
FALSE
FALSE
V_STEEPSLOPEWITHSETBACK
Feature Class
3047
SHAPE
SHAPE
Geometry
4
0
0
Feature geometry.
ESRI
Coordinates defining the features.
SS_AREAID
SS_AREAID
Integer
4
10
0
PUBLISH_DATE
PUBLISH_DATE
Date
8
0
0
SLOPE_AREA_TYPE
SLOPE_AREA_TYPE
String
25
0
0
1- Apparent Valley determined by Stable Toe and Top according to established criteria in reference manual and a 15m setback.
OBJECTID
OBJECTID
OID
4
10
0
Internal feature number.
ESRI
Sequential unique whole numbers that are automatically generated.
DB2GSE.ST_Area(SHAPE)
DB2GSE.ST_Area(SHAPE)
Double
0
0
0
DB2GSE.SdeLength(SHAPE)
DB2GSE.SdeLength(SHAPE)
Double
0
0
0
TF
The extent of the slope erosion hazard for confined riverine systems is determined by the stable toe of slope and the stable top of bank. Generally slopes steeper than 8% which are adjacent to other hazards, such as flood plain, wetland and meanderbelt are included in this layer. The toe of slope or stable toe of slope must be located within one of the above hazards. The stable toe of slope is considered to be a minimum distance of 15m from the full bank width of a watercourse. Where the existing toe of slope is greater than 15m from the full bank width of a watercourse, the existing toe is considered stable. Where this distance is less than 15m, the 15 m allowance is used to predict the future location of the stable toe of slope. The stable slope allowance is based on an assumed stable slope gradient of 3 horizontal units to 1 vertical unit. This measurement is taken from the stable toe of slope and projected to a point of intersection with the ground. This intersection point is considered to be stable top of bank. Where the existing slope is flatter than 3 horizontal units to 1 vertical unit the existing top of bank is considered stable. A 15 m setback is applied from the stable top of bank. In 2019 the extent was updated to LSRCA Scientific Watershed boundary.