My WebLink
|
Help
|
About
|
Sign Out
Home
Search
03/27/2013 Env Bd Packet
LinoLakes
>
Advisory Boards & Commissions
>
Environmental Board
>
Packets
>
2013
>
03/27/2013 Env Bd Packet
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
7/29/2014 2:32:41 PM
Creation date
7/8/2014 9:24:19 AM
Metadata
Fields
Template:
Environmental Board
Env Bd Document Type
Env Bd Packet
Meeting Date
03/27/2013
Env Bd Meeting Type
Regular
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
108
PDF
Print
Pages to print
Enter page numbers and/or page ranges separated by commas. For example, 1,3,5-12.
After downloading, print the document using a PDF reader (e.g. Adobe Reader).
View images
View plain text
• <br />• <br />• <br />3.6. Soils <br />The City of Lino Lakes is located within the Anoka Sandplain ecological subsection of central Minnesota. <br />The Anoka Sandplain is a 1,875 square mile glacial outwash plain that includes portions of 13 Minnesota <br />counties, and is centered on most of Anoka, Isanti, and Sherburne counties. The Anoka Sandplain was <br />created and shaped by the last major glacial episode in Minnesota — the Wisconsin glaciation — between <br />35,000 and 10,000 years ago. <br />The City of Lino Lakes is located within the historic lake bottom of Glacial Lake Fridley which formed <br />from glacial ice -melt water circa 12,000 years ago. The release of glacial melt water from Glacial Lake <br />Fridley created deep, broad, irregular troughs within the glacial lake bottom. These troughs formed the <br />Rice Creek Chain of Lakes and associated wetland complexes of present day, as well as numerous other <br />lake chains to the northwest and southeast of Lino Lakes. The glacial history of Lino Lakes resulted in <br />complex patterns of surficial geology, hydrology, and soil associations that remain as important <br />influences on development, agricultural patterns, and natural resources conservation opportunities within <br />the City. The upland soils of Lino Lakes are typically sandy, moderately to well drained, and nutrient <br />poor. Wetland soils are typically shallow to deep organic peat deposits over sand or saturated sands, <br />which occur within complex networks of braided depressions throughout the City's landscape. The <br />southeastern most edge of the City includes a small portion of a glacial till. The upland and wetland soils <br />of this landscape inclusion are comprised of fine- textured silt loams, loams, and clays that are poorly <br />drained. Topography throughout the City is generally flat to slightly undulating, and the regional <br />groundwater table is typically shallow below the soil surface. <br />Soil types commonly found in Lino Lakes have been grouped into categories (as illustrated in Figure 5) <br />based on the Hydrologic Soil Group (HSG), or runoff potential from precipitation. This classification <br />describes the hydrologic features of the soils and is derived from vegetation, soils composition, and slope. <br />Combined hydrologic soil groups (e.g. A/D, B/D, and C/D) represent soils that can be classified by two <br />labels depending on their drained status. The first letter indicates the soil's properties in a drained setting <br />and the second letter indicates that same soil's properties in an undrained area. Table 3Table 3 <br />summarizes the four hydrologic soil groups: <br />Table 3. Soil hydrologic groups <br />Hydrologic Soil <br />Group (HSG) <br />Description <br />A <br />Soils having high infiltration rates when thoroughly wet (low runoff potential). Deep, well <br />drained to excessively drained sand or gravelly sand. <br />B <br />Soils having a moderate infiltration rate when thoroughly wet. Moderately deep or deep, <br />moderately well drained or well drained with moderately to moderately coarse texture. <br />C <br />Soils having a slow infiltration rate when thoroughly wet. Soils have a layer that impedes <br />the downward movement of water or soils of moderately fme texture or fme texture. <br />D <br />Soils having very slow rates of infiltration when thoroughly wet (high runoff potential). <br />Soils consists of clays with high shrink -swell potential, soils have a permanent high water <br />table, soils that have a claypan or clay layer at or near the surface and soils that are shallow <br />over nearly impervious materials. <br />Urban Land <br />Areas of development that are covered by asphalt, concrete, and buildings. <br />ata from Natural Resource Conservation Service, 1977. <br />City of Lino Lakes SWMP 1 February 8, 2013 Draft! 15 <br />
The URL can be used to link to this page
Your browser does not support the video tag.