HomeMy WebLinkAbout430 N College Ave - Special Inspections/Engineering - 08/29/2011P )1300-50
ZIEHLER ENGINEERING, LLC
STRUCTURAL CONSULTING
June 17, 2011
Rick Donohoe
Complete Basement Systems, Inc. Dd/
3250 Quentin Street, Suiteel 104�% r C ✓ G
Aurora, Colorado 8001
RE: Job No.10060
-Site Observatlonnvlsit (Fort Collins Monument)
430 Nowt College Avenue
Fort. Collins, Colorado 80621
Dear Rids,
Per your request, Tlehler Engineering, LLC was at the aforementioned site to review the progress of
construction. The purpose of this site visit was to review the helical piles shown on the February 3,
2011 structural mitigation plan. While at the site I noted the following items:
New Observations:
• Reviewed the helical piles. To the best of my knowledge and belief, the present construction
appeared to be installed in conformance with the structural mitigation plan..
• The site grading around the perimeter of the structure did not appear to be modified.
Final Comments:
We believe that moisture around the foundation elements must be controlled for the useful life of the
building. ff the Owner would like to further reduce risk and the possibility of future foundation damage,
please reference the site observation report dated January 4, 2011. The extent and aggressiveness of
control should be carefully considered by the Owner. .
Expansive Soils:
Time has shown that Colorado soils can be unstable and structures can experience damaging
movements due to expanding and shdnking.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 to the residence.
Disclaimer:
In as much as the site review of an existing structure for the purpose of observing the structural
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 negrrgence
on the part of the Engineer, the Client will hold harmless, indemnify and defend the Engineer from and
against any and all claims arising out of the professional services we have provided.
Sincerely,
Michael S. Zlehler,131. ' 9 &/39.879
Presklerwowner b •`W) //7�I
Ziehler Engineering, LLC
/AL
528 South Pennsylvania Street. Denver, CO 80209 - (303) 778-0074 office - (303) 778-0075 fax - wwwziehlerengineering.com