HomeMy WebLinkAbout3036 Dunbar Ave - Special Inspections/Engineering - 08/30/2013 (2)tt DL Engineering Inc.
t-is= Structural / Civil Engineering
2996 S. Lamar Street
Denver,. Co 80227
720-413-8992
diemier@dlengineer.com
www.dlengineer.com
8/30/2013
Complete Basement Systems:
32S0 Quentin Street, #104
Aurora, CO 80011
RE: Job Number 2013-099
Site Observation Visit (Voelkel)
3036 Dunbar Ave Unit 7
Fort Collins, CO 80526
DL Engineering Inc.. reviewed the. progress of construction for the subject project.on August 27st, 2013.
The following is a summary of the observations made:
.New Observations:
• Reviewed the push pier and log. The push pier appeared to be installed in conformance
with the structural mitigation plan.
• 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.
Geotechnical Consideration:
It Is possible that the wall anchors may consolidate the soil behind the foundation wall. Because of this,
periodic surveys of the supported structures should be conducted. to assure project success. The Owner
should be responsiblefor 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 horizontal movement of the foundation walls or wall anchors Is discovered, the anchors
should be re -tensioned. A Geotechnical Engineer should be present for the re-torqueing of the wall
anchors.
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
I
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