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The 2013 urban flood extent data was developed using field surveys completed by City of Boulder staff and consultants, Digital Globe Worldview-2 satellite imagery (9/13/13), and public input from the Boulder Crowd Sourcing online map as well as discussions with affected property owners. Only drainages with a FEMA mapped floodplain were surveyed. Other areas of Open Space and Mountain parks land without a regulatory floodplain were not included.<\/SPAN><\/P>

The flood extent data is current as of 6/3/2014 and includes information received from recent community meetings. The City of Boulder will make additional updates to this data to incorporate relevant information.<\/SPAN><\/P>

The 2013 urban flood extent data does not supersede the Special Flood Hazard Area Designation (SFHA), or 100 yr floodplain, used by FEMA for Digial Flood Insurance Rate Maps or the proposed floodplain delineations from ongoing flood studies.<\/SPAN><\/P>

This data is provided as graphical representation only. The City of Boulder provides no warranty, expressed or implied, as to the accuracy and/or completeness of the information contained hereon. <\/SPAN><\/P><\/DIV><\/DIV><\/DIV>", "geometryType": "esriGeometryPolygon", "sourceSpatialReference": { "wkid": 2876, "latestWkid": 2876, "xyTolerance": 0.00328083333333333, "zTolerance": 0.001, "mTolerance": 0.001, "falseX": -118265500, "falseY": -95180100, "xyUnits": 3048.0060960121905, "falseZ": 0, "zUnits": 1, "falseM": 0, "mUnits": 1 }, "copyrightText": "Public Works Information Resources, April 2020", "parentLayer": null, "subLayers": [], "minScale": 0, "maxScale": 0, "referenceScale": 0.0, "drawingInfo": { "renderer": { "type": "simple", "symbol": { "type": "esriSFS", "style": "esriSFSSolid", "color": [ 97, 129, 168, 255 ], "outline": { "type": "esriSLS", "style": "esriSLSSolid", "color": [ 42, 60, 94, 255 ], "width": 0.7 } } }, "scaleSymbols": true, "transparency": 0, "labelingInfo": null }, "defaultVisibility": true, "extent": { "xmin": 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{ "name": "Leggett Ditch", "code": "Leggett Ditch" }, { "name": "Leggett Inlet", "code": "Leggett Inlet" }, { "name": "Leggett Outlet", "code": "Leggett Outlet" }, { "name": "Lewis H Davidson Ditch", "code": "Lewis H Davidson Ditch" }, { "name": "Leyner Cottonwood Ditch", "code": "Leyner Cottonwood Ditch" }, { "name": "Little Dry Creek", "code": "Little Dry Creek" }, { "name": "Little James Creek", "code": "Little James Creek" }, { "name": "Little Thompson River", "code": "Little Thompson River" }, { "name": "Little Wellman Lateral", "code": "Little Wellman Lateral" }, { "name": "Long Canyon Creek", "code": "Long Canyon Creek" }, { "name": "Lost Gulch", "code": "Lost Gulch" }, { "name": "Lower Boulder Ditch", "code": "Lower Boulder Ditch" }, { "name": "Marshall Ditch No 1", "code": "Marshall Ditch No 1" }, { "name": "Marshall Ditch No 2", "code": "Marshall Ditch No 2" }, { "name": "Marshalville Ditch", "code": "Marshalville Ditch" }, { "name": "Martin Gulch", "code": "Martin Gulch" }, { "name": "McCarty Ditch", "code": "McCarty Ditch" }, { "name": "Mcendaffer Seep Ditch", "code": "Mcendaffer Seep Ditch" }, { "name": "McGinn Ditch", "code": "McGinn Ditch" }, { "name": "Mckay Ditch", "code": "Mckay Ditch" }, { "name": "Mesa Draw", "code": "Mesa Draw" }, { "name": "Middle Boulder Creek", "code": "Middle Boulder Creek" }, { "name": "Mountain View Lateral", "code": "Mountain View Lateral" }, { "name": "North Boulder Creek", "code": "North Boulder Creek" }, { "name": "North Boulder Farmers Ditch", "code": "North Boulder Farmers Ditch" }, { "name": "North Draw", "code": "North Draw" }, { "name": "North Juniper Later", "code": "North Juniper Later" }, { "name": "North Juniper Lateral", "code": "North Juniper Lateral" }, { "name": "North Kalmia Lateral", "code": "North Kalmia Lateral" }, { "name": "North Linden Lateral", "code": "North Linden Lateral" }, { "name": "North St Vrain Creek", "code": "North St Vrain Creek" }, { "name": "North Toll Gate Ditch", "code": "North Toll 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