HomeMy WebLinkAboutLetter of Observation CLOSEOUT OBSERVATION 9100 W Jewell Ave STE. 200
Job# 2021-10518 (Client #:41148) Lakewood, CO 80232
150 River Bend Way, 720-440-9450
Glenwood Springs, CO 81601 www.dlengineer.com
2021-10518 Closeout Letter.docx Page 1 of 2
3/11/2022
Foundation Repair of Western Colorado
2575 U.S. 6,
Grand Junction CO, 81501
DL Engineering Inc. reviewed the progress of construction from photos provided by the contractor for
the subject project on January 21, 2022. The following is a summary of the observations made:
NEW OBSERVATIONS :
PUSH PIERS
• Reviewed the (9) push piers. Below is a table summarizing pier locations:
Pier Quantity Wall Location (N/S/E/W) Pier Spacing (on center)
3 W Per Plans
3 N Per Plans
3 E Per Plans
The pier spacing was observed and appears to be in conformance with the
construction documents.
The piers were installed to refusal or to a depth no less than that specified in the
construction documents.
The push piers appear to be installed in conformance with the structural
mitigation plan.
HOUSE PERIMETER CONDITIONS
• Site grading around the perimeter of the house did not appear to be modified.
• Vegetation around the perimeter of the house did not appear to be modified.
VOLATILE SOILS:
The moisture around the foundation elements must be controlled for the useful life of the building. Time
has shown that Colorado soils can be unstable, and structures can experience damaging movements due
to expanding and shrinking soils, primarily when moisture changes occur. Maintaining consistent soil
moisture contents around all foundation elements is crucial to minimizing foundation movements. Even
with properly engineered/constructed foundation systems these volatile soils can still exert excessive
pressures causing damage in the residence. If the Owner would like further insight about the on-site soil
conditions and preventative measures, a Geotechnical Engineer should be consulted.
CLOSEOUT OBSERVATION 9100 W Jewell Ave STE. 200
Job# 2021-10518 (Client #:41148) Lakewood, CO 80232
150 River Bend Way, 720-440-9450
Glenwood Springs, CO 81601 www.dlengineer.com
2021-10518 Closeout Letter.docx Page 2 of 2
GEOTECHNICAL CONSIDERATION:
It is possible that the piers may consolidate the soil under the piers. Because of this, periodic surveys of
the supported structures should be conducted to assure project success. The Owner should be
responsible for annual surveys certifying project success. It is recommended that a baseline survey be
conducted immediately. The Owner should report all findings and reports to the Structural Engineer. If
vertical movement of the foundation walls is discovered, the piers should be re-pressurized. A
Geotechnical Engineer should be present for the re-pressurizing of the piers.
DISCLAIMER
In as much as the site review of an existing structure for the purpose of observing the structure conditions
requires that certain assumptions be made regarding existing conditions and because some of these
assumptions may not be verifiable without expending additional sums of money or destroying otherwise
adequate or serviceable portions of the building, the Client agrees that, except for negligence on the part
of the Engineer, the Client will hold harmless, indemnify and defend Engineer from and against any and
all claims arising out of the professional services we have provided.
If you should have any further questions, please feel free to contact me at (720) 440-9450 or
clevitt@dlengineer.com.
Sincerely,
Colton Levitt, EIT
Under the direct supervision of,
Ross Whitcher, PE