HomeMy WebLinkAbout034 Appendix Y.4 - Geo Report SupplemenSUPPLEMENTARY TO GEO-REPORT
D:\Jobs File\JBS 2020\020025CR\Geo Report Supplement, L@VW-South MT r.doc
PROJECT: West Park Neighborhood
Bozeman, Gallatin County
Montana
CLIENT: 8FC,LLC
P.O. Box 11388
Bozeman, Montana
59719-1388
PROJECT NO.: 020025CR – Supplementary Comments
DATE: August 30th, 2022
Introduction
This letter is to serve as a supplement to the above referenced property. Andrew Pilskalns P.E. prepared a
Geotechnical Report for the above referenced property on April 10th, 2020. The legal description of the
project as given at the time of the Geotechnical investigation is a portion of the Southwest ¼ of the Northeast
¼ of Section 9, Township 2 South, Range 5 East, of the Bozeman, Montana Quadrangle in Gallatin County’.
The Property Record Card reported at that time the Primary Owners as Norton Properties LLC and the
Subdivision as Norton East Ranch Subdivision Phase III, Plat J-564. The property is currently being developed
as the West Park Neighborhood and the Owners are 8FC, LLC. The site is located on the north side of west
Babcock Street between Pond Lily Drive and Water Lily Drive. The Vicinity and Topographic Map are shown in
Figure 1 of the letter.
Figure 1 –Vicinity & Topographic Map
Geologic Review of
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Part of the ‘Study of Grounds’ work was to evaluate the proposed development and the area shown in Figure
2 – Test Hole Map as the Open Pit Gravel Mining and Soil Spoils Deposit area. The Open Pit Gravel Mining
and Soil Spoils Deposit area is adjacent to Baxter Creek, which trends in the northwest direction and also
makes up the east property boundary. Deep gravel mining operations consisted of 20 to 30+ feet deep
excavations, completed by Norton Properties LLC. The past Owners proceeded to backfill portions of the
disturbed area with spoils from the mining operation with clayey-silt soils, and organics. The area within the
disturbance is considered unsuitable for redevelopment or road development based on depth of excavation
associated with gravel mining activities and the undocumented fill placed in the excavations. The best use of
the land is creating wetland and park, which has environmental benefits and esthetic benefits for the people
of the community.
Figure 2 – Test Hole Map
Conclusion
Geologic Review of
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Based on the risk and cost to reclaim property that was initially used in gravel mining operations, we maintain
the same position as first reported; the area should be used for natural open space, such as parks, wetlands,
and ponds.
If you have any questions or concerns about the contents of this letter, please contact our office. I appreciate
the opportunity to work with you.
Prepared by,
ANDY PILSKALNS, P.E.
LICENSED - Montana, Utah, Colorado, Idaho, Wyoming, Hawaii, Nevada
PROVIDING THE WEST WITH GEOTECHNICAL SERVICES FOR 19 YEARS
Castle Rock Geotechnical Engineering
9 Cedar Lake Drive
Butte, Montana 59701
C: (406) 539-8439
O: (406) 209-5573
Geologic Review of
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Geologic Review of
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