HomeMy WebLinkAboutObservation of Excavation
July 28, 2025 Geo Quest Project No. 25-119
DusƟn Cheney
3360 County Road 233
Rifle, CO 81650
970-379-5258
dusƟn@avalancheexcavaƟon.net
Subject: Open Hole InspecƟon LeƩer for New Cabin Project
Mr. Cheney,
Geo Quest (GQ) visited the project site at Garfield County parcel No. 239925400082 on County Road 313
south of Silt on July 25, 2025 to observe the foundaƟon excavaƟon for a new cabin. At the Ɵme of GQ’s
site visit a foundaƟon drain was installed, and concrete forms and rebar had been placed in preparaƟon
for concrete.
A visual and tacƟle inspecƟon of the soil was performed, and a half inch diameter probe rod was used to
invesƟgate condiƟons below the boƩom of the excavaƟons. The soil observed is consistent with the
condiƟons encountered during the test pit excavaƟon on May 8, 2025.
The current plan set for the project assumes a soil bearing capacity of 1,500 pounds per square foot (psf)
for the spread fooƟng foundaƟons. GQ esƟmates that this assumed soil bearing capacity value is
acceptable for the observed soil condiƟons.
The other assumed soil design values in the Plans remain valid. Care should be used to direct water away
from the excavaƟons and prevent soŌening of the bearing soils. GQ should be contacted for review if soil
condiƟons change before concrete is placed.
Respecƞully submiƩed,
Geo Quest, LLC
Kevin E. Dye, P.E.
AƩachments: ExcavaƟon Photos
7/28/25
View of excavaƟon looking west.