HomeMy WebLinkAbout6307 BUCHANAN ST - SPECIAL INSPECTIONS - 7/22/20209100 W Jewell Ave
Lakewood, CO 80232
720-440-9450
www.dlengineer.com
7/22/2020
Complete Basement Systems
11795 East 45th Ave.
Denver, CO 80239
RE: Job Number 2020-7653
Site Observation Visit (Gohl)
6307 Buchanan Street
Fort Collins, CO 80525
DL Engineering Inc. reviewed the progress of construction for the subject project on July 15, 2020. The
following is a summary of the observations made:
New Observations:
• Reviewed the steel wall braces. There were 5 wall braces installed on the south wall
spaced at approximately 5’3” o.c. and 7’ o.c.
o The wall brace spacing was observed and appears to be in conformance with
the construction documents.
o The new 2x6 and joist blocking were observed and appears to be installed in
conformance with the construction documents.
o The wall brace bolt connections were observed and appear to be in
conformance with the construction documents.
o The wall braces appear to be installed in conformance with the structural
mitigation plan.
• Reviewed the push pier. There were 1 pier installed inside the south east corner of the
crawlspace.
o The pier spacing was observed and appears to be in conformance with the
construction documents.
o The piers were installed to refusal or to a depth no less than that specified in the
construction documents.
o The push piers appear to be installed in conformance with the structural
mitigation plan.
• Reviewed the sump pump and interior perimeter drain
o The sump pump and interior drain were observed and appears to be in
conformance with construction documents.
• 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
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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 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 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
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
jslama@dlengineer.com.
Sincerely,
Jim Slama, P.E.