HomeMy WebLinkAboutObservation of ExcavationFooting Subgrade Bound by G.L. A-I/1-9 (See attached map)Location:
Performed by:Excavation Contractor:John RileyTally Ho Constructiom
Name Company
On-Site Notifications
Jeff Parrington Tally Ho Construction
Geotechnical Report
Geotechnical Engineer:N/A Report Date:N/A
Anticipated Condition:Native Undisturbed
Special Considerations:No project geotechnical report has been prepared for this area. Project structural drawings indicate design based on an
assumed maximum allowable bearing pressure of 1,500 psf.
Encountered Conditions
Excavation Condition:We observed the excavation for the proposed building footings, as located in the photo below, and found a predominately
clayey silty material. Based upon our experience and on the IBC presumed soil load bearing pressures in Table 1806.2, this
soil type, at the elevations and time of our observations, likely meets or exceeds the presumed allowable bearing pressure
used in the design. However, the presence of weaker subsurface soil layers resulting in allowable bearing pressure of less
than 1,500 psf cannot be ruled out by surface observations only. Quantitatively verifying soil bearing capacity generally
requires access to subsurface information and Standard Penetration test data. If this is desired, we recommend drilling and
data collection be performed.
Conformance
Excavation Conditions:
Conforms Does Not Conform Not Applicable Not Observed
Report No.:N/A
Photos
Highlighted equals area represented.
Tally Ho Construction
111 E 3rd Street
Rifle, CO 81650
Jeff Parrington
1420 County Road 107 - Broadhurst
Client:
Excavation / Open Hole Observations
Work Order No.:Mar 30, 2025 25-6526.Excavation-OpenHole.0001; ver: 1Report Date:
Work Order Date:Mar 28, 2025 Reviewed By:Chris Hutto
Results apply only to the specific items and locations referenced and at the time of testing, observations or special inspections. This report should not
be reproduced, except in full, without the written permission of GROUND Engineering Consultants, Inc.
41 Inverness Drive East, Englewood, Colorado www.groundeng.com 303-289-1989
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