HomeMy WebLinkAbout4701 Regency Dr - Special Inspections/Engineering - 11/02/2017ADVANCED
ENGINEERING, LLC
STRUCTURAL DRAINAGE DRAFTING
November 2, 2017
Scott Schadegg
4701 Regency Drive
Fort Collins, Colorado 80526
RE: 4701 Regency Drive, Fort Collins, Colorado
Advanced Engineering, LLC Project Number 2900-01-01C
Dear Mr. Schadegg:
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On October 26, 2017 we visually observed the foundation wall reinforcing placed in the forms for
the garage addition on the east side of the existing residence at the above referenced site. It is our
opinion the reinforcement was in general conformance with our Foundation Plan, Project Number
2900-01-01B.
The conclusions presented in this letter are not intended to cover structural items other than those
listed, site grading/elevations, setbacks, subsurface soil conditions, or architectural features of the
building. Thank you for the opportunity to serve you, feel free to call if you have any questions.
Sincerely,
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Jason E. Baker, P.E. %00,00.17
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229 12'h Street SW, Loveland, Colorado 80537 Telephone 970-278-1909
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November 17, 2017
Scott Schadegg (s.w.schadessneanail.com)
4701 Regency Drive
Fort Collins, Colorado 80526
Re: Caisson Observation
4701 Regency Drive — Building Addition
Fort Collins, Colorado
EEC Project No. 17-01-180
Mr. Schadegg:
As you requested, on October 23rd, 2017, Earth Engineering Company, Inc. (EEC) personnel
provided construction observation services for the referenced project. On that date, drilled pier
foundations were being constructed for the building addition to referenced single-family residence.
Construction observation services were provided by EEC personnel on a part-time basis and
included observations of the pier drilling operation and observation of pier steel reinforcement.
Results of the field observations completed by EEC personnel during the referenced period are
included with this report.
On October 23a, 2017, personnel observed the drilling operations for the caisson foundations.
Items observed by EEC personnel included plumbness of the drilled shafts, stratification of soils
and bedrock encountered, caisson length, cleanliness of the bearing surface and difficulties
encountered during excavation. The materials encountered in the pier borings observed in the
building addition consisted of reddish brown sandy clay soils underlain by olive/brown claystone
bedrock at a depth of approximately 13 to 18 feet at various locations which extended to the depths
explored. The piers were drilled a minimum of 20 feet in length with a minimum penetration of
10 feet into bedrock. The pier hole bottoms appeared relatively clean with no water infiltration
observed at the time of our observations. The drilled shafts observed appeared plumb, were
approximately 12 inches in diameter and extended to a depth of approximately 26 to 28 feet below
the building addition excavation level at various locations. At the time of our observations, three
#5 bars were being placed in the pier excavations at various locations. Concrete placement was
observed at the time of our observations. The observed pier excavations appeared to be in general
accordance with the construction plans prepared by Advanced Engineering, LLC, Project No.
2900-01-01B, dated August 25, 2017.
P.O. Box 271429, Fort Collins, CO B0527 phone: 970.775.2004 fax: 970.663.02132