HomeMy WebLinkAboutObservation of Excavation1(+AKumar &Associates, Inc.®
Geotechnical and Materials Engineers
and Environmental Scientists
5020 County Road 154
Glenwood Springs, CO 81601
phone: (970) 945-7988
email: kaglenwood@kumarusa.com
www.kumarusa.com
An Employee Ownod Company/
Office Locations: Denver (HQ), Parker, Colorado Springs, Fort Collins, Glenwood Springs, and Summit County, Colorado
June 12, 2025
Uriel Mellin
144 Cliffrose Way
Glenwood Springs, Colorado 81601
uriel.mellin(a)-hotmai.com Project No. 25-7-112
Subject: Observation of Excavation, Proposed Residence, Lot 28, First Eagle Point,
239 Eagle Ridge Drive, Garfield County, Colorado
Uriel:
As requested, a representative of Kumar & Associates, Inc. observed the excavation at the
subject site on June 9, 2025 to evaluate the soils exposed for foundation support. The findings
of our observations and recommendations for the foundation design are presented in this report.
We previously conducted a subsoil study for design of foundations at the site and presented our
findings in a report dated February 6, 2025, Project No. 25-7-112.
The proposed residence has been designed to be supported on spread footings sized for the
recommended allowable bearing pressure of 1,500 psf.
At the time of our visit to the site, the foundation excavation had been cut in 2 levels from about
1 to 5 feet below the adjacent ground surface. The soils exposed in the bottom of the
excavation consisted of sandy silt in the shallow cut, western area to sandy clay/clayey sand
with basalt gravel in the deeper cut area. No free water was encountered in the excavation and
the soils were slightly moist.
The soil conditions exposed in the excavation are consistent with those previously encountered
on the site and suitable for support of spread footings designed for the recommended allowable
bearing pressure of 1,500 psf. Loose disturbed soils in the footing areas should be removed
and the exposed soils moistened and compacted. Other recommendations presented in our
previous report which are applicable should also be observed.
The recommendations submitted in this letter are based on our observation of the soils exposed
within the foundation excavation and the previous subsurface exploration at the site. Variations
in the subsurface conditions below the excavation could increase the risk of foundation
movement. We should be advised of any variations encountered in the excavation conditions
for possible changes to recommendations contained in this letter. Our services do not include
determining the presence, prevention or possibility of mold or other biological contaminants
(MOBC) developing in the future. If the client is concerned about MOBC, then a professional
in this special field of practice should be consulted.
If you have any questions or need further assistance, please call our office.
Sincerely,
Kumar & Associates, I
Steven L. Pawlak, P.
SLP/kac