DWR_3193699

• Document Date: 12/21/2017
• Document Type - Dam Safety: Report
• Division: 5
• Dam ID: 530212
• Subject: COPPER SPUR DAM - SPILLWAY ADEQUACY ANALYSES
• DWR Send/Recipient: JACKIE BLUMBERG, ALAN MARTELLARO

Saturated Hydraulic Conductivity (Ksat), Standard Classes—Grand County Area, Colorado; and Routt Area, Colorado, Parts of Rio Blanco and Routt Counties
(Copper Spur)
MAP LEGEND
MAP INFORMATION
Area of Interest (A01)
F-1 Not rated or not available
The soil surveys that comprise your AOI were mapped at
Area of Interest (AOp
Water Features
1:24,000.
Soils
Streams and Canals
Please rely on the bar scale on each map sheet for map
Soil Rating
Polygons
measurements.
Transportation
.
Very Low (0.0- 0.01)
Rails
Source of Map: Natural Resources Conservation Service
0
Low (0.01 - 0.1)
'
Web Soil Survey URL:
■V Interstate Highways
Coordinate System: Web Mercator (EPSG3857)
0
Moderately Low (0.1 - 1)
US Routes
Maps from the Web Soil Survey are based on the Web Mercator
0
Moderately High (1 - 10)
Major Roads
projection, which preserves direction and shape but distorts
, _
distance and area. A projection that preserves area, such as the
(-1
High (10- 100)
Local Roads
Albers equal-area conic projection, should be used if more
-
Very High (100- 705)
accurate calculations of distance or area are required.
Background
0
Not rated or not available
. Aerial Photography
This product is generated from the USDA-NRCS certified data as
of the version date(s) listed below.
Soil Rating
Lines
~
Very Low (0.0- 0.01)
Soil Colo2017 do
veyAre Area: Grandion
Survey 11, Oct 10,
Survey Area Data: Version 11, Oct 1 Q 2017
~
Low (0.01 - 0.1)
Soil Survey Area: Routt Area, Colorado, Parts of Rio Blanco and
r
Moderately Low (0.1 - 1)
Routt Counties
Survey Area Data: Version 7, Oct 13, 2017
■
Moderately High (1 -10)
Your area of interest (AOI) includes more than one soil survey
~
High (10- 100)
area. These survey areas may have been mapped at different
~
Very High (100- 705)
scales, with a different land use in mind, at different times, or at
different levels of detail. This may result in map unit symbols, soil
. r
Not rated or not available
properties, and interpretations that do not completely agree
Soil Rating
Points
across soil survey area boundaries.
Very Low (0.0- 0.01)
Soil map units are labeled (as space allows) for map scales
1:50,000 or larger.
�
Low (0.01 - 0.1)
Date(s) aerial images were photographed: Oct 21, 2011—Nov
0
Moderately Low (0.1 - 1)
30, 2016
0
Moderately High (1 - 10)
The orthophoto or other base map on which the soil lines were
High (10- 100)
compiled and digitized probably differs from the background
imagery displayed on these maps. As a result, some minor
Very High (100- 705)
shifting of map unit boundaries may be evident.
USDA Natural Resources Web Soil Survey 12/21/2017
iiiiiiii Conservation Service National Cooperative Soil Survey Page 2 of 5