HomeMy WebLinkAboutEngineer's Installation Observation, Close out Letter 06.04.2019KURTZ & ASSOCIATES, INC. STRUCTURAL CONSULTANTS
5012 County Road 154 Phone (970) 945 6305
Glenwood Springs, CO 81601
MEMORANDUM
(2) Pages
To: Garfield County Building & Planning Dept. June 04, 2019
108 Eight Street, Glenwood Springs, Co.
Copy: Lonnie & Joni Busby
Copy: Foundation Repair of Western Colorado
Re: Busby Residence: 119 White Peaks Lane,
Ironbridge Subdivision, Garfield County, CO.
Our office originally inspected the noted residence on Nov. 05, 2018. The subject
residence is a two story wood framed structure over a crawl space with an attached
vehicular garage. The residential portion of the home measures, in plan, approximately
35'-0" east -to -west by 47'-0" north -to -south. The home was originally constructed with
continuous concrete foundation walls and continuous concrete footings. The crawl space
framing included a total of three (3) structural steel beams which clear span east -to -west
across the crawl space. Those steel beams are supported on steel columns in the crawl
space.
Our office issued construction documents on November 09, 2018 to address the
stabilization of the foundation walls. Those documents specified the installation of thirty
seven (37) hydraulically driven steel piles to be installed along the foundation walls. The
construction documents specified the location of each pier and the required "Safe Working
Load" that each pier is to support. Those documents also specified and detailed a total of
four (4) steel brackets to attach the four (4) most heavily loaded steel columns to the
concrete foundation walls.
Foundation Repair of Western Colorado installed the thirty seven (37) steel piers
beginning on May 14, 2019 and continuing through May 28, 2019. I performed a visual
inspection of the installed piers on May 28, 2019, and a second inspection on May 29,
2019 to observe installation of the noted steel brackets. They subsequently hydraulically
loaded the piers and lifted and re -leveled the center portion of the home. Our office
coordinated with Foundation Repair of Western Colorado during the construction phase.
Subsequent to the foundation repair Foundation Repair of Western Colorado provided a
`Pier Summary" and "Pier Analysis."
(2)
Our office reviewed those documents. The Pier Summary includes the driven
depth of each pier and the amount of lift at each pier. The driven depths indicate the
depth at which the piers encountered the underlying granular bearing soils. The driven
depths were very consistent: they varied from approximately 20 feet to 28 feet.
The lifts, as documented, were successful, and were as anticipated: the lift heights varied
from 1/8" to 1".
It is my professional opinion that the foundation repairs have been successfully
completed by Foundation Repair of Western Colorado in accordance with the
construction documents issued by our office.
/ 0 LIc
..., F,y
Kurtz and Associates, Inc. 3AY
Brian Kurtz, P.E.
18744