HomeMy WebLinkAboutConstruction Observation & Testing Letter 11.30.2015HEPWORTH—PAWLAK GEOTECHNICAL
November 30, 2015
Silich Construction Inc.
Attn: Hayden Horsford
303 AABC, Suite J
Aspen, Colorado 81611
(h horsford @silichconstruction.com)
I lerwnrih Poon I,ih Gtvrechniw.il. Inc
5020 County NIA 154
Glenwood Spring,, GoloraJii 81601
Phone 970 9.15.7959
Fax 970 945 S454
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Job No. 115 066F
Subject: Construction Observation and Testing Completion Letter, Proposed
Residence, Lot 172, Ironbridge Development, 21 Bent Grass Drive,
Garfield County, Colorado
Gentlemen:
As requested, we are providing a summary of our observation and testing services
provided for the above referenced project. The reports of the services requested and
performed for the project are attached. We previously conducted a subsoil study for
design of foundations at the site and presented our findings in a report dated June 10,
2015, Job No. 113 471M.
The foundation bearing soils within the building excavation were observed and tested for
compaction on August 18, 2015 and are suitable for the recommended bearing pressure of
1,000 psf. The post -tensioned slab tendons and grade beam reinforcement were observed
on September 3 and 11, the fresh concrete for the post -tensioned slab and grade beams
was sampled on September 14 and tensioning of the tendons was observed on September
17, 2015 according to the project specifications. The results of the tendon tensioning
were submitted to Fuhrmann & Graf for their approval. We did not observe placement of
the rigid foam insulation along the building perimeter, but since the perimeter grade beam
has a minimum depth of 36 inches, it provides adequate frost protection rather than by
insulation.
Based upon inferences drawn from our observation and testing, as documented by the
attached daily field and laboratory reports, it is our professional opinion that the
referenced construction has achieved the specified conditions. Please recognize that
construction observation and testing are sampling functions that involve direct
Parker 303-841-7119 • Colorado Springs 719-633-5562 • Silvcrrhornc 970-468-1989
Silich Construction Inc.
November 30, 2015
Page 2
observation and testing of very limited amount of the overall work to evaluate the
construction compliance.
If you have any questions or need further assistance, please call our office.
Sincerely,
HEPWORTH -- PAWLAK GEOTCHNICAL, INC.
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Attachments: Observation & Testing Reports: 8/18/2015 through 9/17/15
cc: Silich Construction — John Silich (john@silichconstruction.corn)
Job No. 115 066F