HomeMy WebLinkAboutCloseout Observation Letter 06.29.2022 CLOSEOUT OBSERVATION 9100 W Jewell Ave STE. 200
Job# 2022-11535 Lakewood, CO 80232
143 Glen Eagle Circle 720-440-9450
New Castle, CO 81647 www.dlengineer.com
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6/29/2022
Foundation Repair of Western Colorado
2575 Highway 6 & 50
Grand Junction, CO 81501
DL Engineering Inc. reviewed the progress of construction for the subject project on June 29, 2022. The
following is a summary of the observations made:
NEW OBSERVATIONS:
PUSH PIERS
• Reviewed the (6) push piers. Below is a table summarizing pier locations:
Pier Quantity Wall Location (N/S/E/W) Pier Spacing (on center)
1 W Per Plans
4 N Per Plans
1 E Per Plans
The pier spacing was observed and appears to be in conformance with the
construction documents.
The piers were installed from the interior of the crawlspace. This change was
approved by the engineer.
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.
MONO POSTS
• Reviewed the (6) mono posts. Below is a table summarizing post locations:
Post Quantity Beam Line Location (N/S/E/W) Post Spacing (on center)
6 Center beam line Per Plans
The mono posts were attached to the existing timber beam along the center
beam line.
The mono posts were attached to the beam above and to the foundation below.
The steel mono posts appear to be installed per the structural plans.
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.
CLOSEOUT OBSERVATION 9100 W Jewell Ave STE. 200
Job# 2022-11535 Lakewood, CO 80232
143 Glen Eagle Circle 720-440-9450
New Castle, CO 81647 www.dlengineer.com
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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.
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
khoiness@dlengineer.com.
Sincerely,
Kelly Hoiness, PE