HomeMy WebLinkAboutBuilding Correspondence 2007-9-11
.....
ARTISAN ENGINEERING, LLC
325 West 13th Avenue
Eugene, Oregon 97401-3402
Phone: 541,338-9488 Fax: 541-338-9483
www.artisanengineering.com
~lO:~"
September 11, 2007
Stuart Swearengin
Swearengin Family Construction, Inc,
73518 Abeene Lane
Cottage Grove, Oregon, 97424
Re: "Site Visit for Assessment of Rockery Wall at the Stein Residence at 6621 BidQe Driv~,
Mountain Gate Subdivision, Springfield, Oregon '-. i
" Dear Stuart:
.,
I visited the house that you are building for the Stein Family located at 6621 Ridge Drive at the
Mountain Gate subdivision in Springfield, Oregon on August 15th per your earlier request. The
purpose of this site visit was to assess the condition and quality of the rockery wall along the south
side of the driveway and to determine if it met the requirements of our previously en'gineered
sketches,
In particular, the City of Springfield is requiring that an Engineer sign-off on the retaining wall
because it is an important to the front entry portion of the residence, The rockery retains soil that-
underlies 'the individual strips footings under the front entry that you had poured back in July.
During the site visit I met with the Contractor who was placing the rocks with a Bobcat Excavator.
Each course was being placed on a layer of compacted crushed rock that was vibrated around the
rocks with a flat plate vibrator.
"' noted that the height of the wall was less than I had expected based on my July site visit. The
Contractor described the reason for the decrease in height was primarily due to the fact that crushed
rock had been deposited on the entire driveway and compacted with a vibratory roller. In addition,
the rockery wall was placed slightly northward from the original excavation line that was my greatest
concern for the footings back in July, The result was that there is no slope within 3 feet from the
footings and the rockery has actually provided a base for backfill that ensures the footings will not be
undermined,
In conclusion, I found no problems and have no concerns about the structural stability ofthe rockery
wall or the footings for the entry behind thewall, The rockery and foundation for the residence being
built at 6621 Forrest Ridge Drive in the,Mountain Gate area of east Springfield has been completed
in a professional and workmanlike manner. The fooiings are being on a firm base and I have no
concerns for slope stability, expansive soil, or site drainage.
We have enjoyed assisting you with this foundation verification. Please ~II if you have questions,
J:\.~ {M~
Tlmothy'J~olden, P,E,
Prin?ipaJ, Artisan Engineering, LLC