HomeMy WebLinkAboutObservation of Excavation 10.18.2023Cottonwood pad Location:
Performed by:Excavation Contractor:Cody PeacockWillow Creek Companies
Name Company
On-Site Notifications
Jeff Hollingshead Willow Creek Companies
Dale Wood Williams
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 a
maximum assumed allowable bearing pressure of 2,000 psf.
Encountered Conditions
Excavation Condition:We observed the excavation for the proposed thickened edge slab, as noted in photo below, and found dense, clayey to silty
sand, and some gravel. 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 2,000 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
Willow Creek Companies
28485 Highway 6, Unit 4
Rifle, CO 81650
Steve Brackett
Williams Field Services - Piceance Basin
Client:
Excavation / Open Hole Observations
Work Order No.:Oct 18, 2023 23-6582.Excavation-OpenHole.0004; ver: 1Report Date:
Work Order Date:Oct 17, 2023 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
Englewood | Commerce City | Loveland | Granby | Gypsum | Colorado Springs Page 1 of 2
Photos
Willow Creek Companies
28485 Highway 6, Unit 4
Rifle, CO 81650
Steve Brackett
Williams Field Services - Piceance Basin
Client:
Excavation / Open Hole Observations
Work Order No.:Oct 18, 2023 23-6582.Excavation-OpenHole.0004; ver: 1Report Date:
Work Order Date:Oct 17, 2023 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
Englewood | Commerce City | Loveland | Granby | Gypsum | Colorado Springs Page 2 of 2
