HomeMy WebLinkAboutPermit Field Test & Inspection Report 2001-2-6
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Sep. 01 1999 09:26AM Pi
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February 6, 2001
PROFESSIONAL ENGINEERS
LAND SURVEYORS
BUILDING DESIGNERS
(100 N NIN1H STREE;T COTTAGE GROVF. ORI:GON 97.7.
TE:LEPHONI' (541) 942-<:>126 FAX (541) 942-7G,5
Mr. Eric Young
Young Construction Co,
1304 West Main St.
Cottage Grove, OR 97424
RE: 7295 Elderberry St., Springfield Oregon, Survey of Retaining Walls
Dear Eric:
On January 25,2001, I surveyed the existing rear and middle Concrete Masonry Unit (CMU)
foundation walls and the taller portIons of the side eMU foundatIOn walls by means of a
Schoenstadt GA-52 metal detector. For the most part, I obtained good signal strength with clear
variations Indicatlng presence of magnetic materials at certain locatIons
Based on our survey of the walls it appears that there is vertical stecllocated at 16" on center in
the rcar and side walls and at 24" on center in the middle wall. This steel appeared to run the
entire height of the wall. In several locations where our survey indicated steel in the center of the
wall, tips of deformed steel bars were visible at cut-outs in the sill plate. The visible bars were
both #4 and #5.
There also appeared to be horizontal steel every 32" in all walls surveyed I was unablc to visually
identify the size of the horizontal steel without destroying the wall
According to our design, the rear wall reinforcmg stcel should have been at least #4 bars @ 16"
o C vertically and #4 bars @ 32" o.c. horizontaL The middle wall was to contain #4 bars @
32" Q,C, vertically and horizontally
In my professioIlal.9pinion, based on our inspection and my experience in this area. the reinforcing
steel in the rear, side and middle walls appears to be spaced and SIzed in accordance with our
design dated September 5, 2000 for two restramed eMU retaining wall heights
I trust thIS letter adequately addresses your concerns. If you have any questions please call me.
Yours truly,
(Te~max, n _.
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Ronald D_ Rice, P.E.
Senior Principal
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Page 1 of I
Feb 23 01 08:12a
KeVln M.Pet.erson
(541J 688-3020
p.2
Owen Grover Engineering P.C.
1050 Bethel Dr. Suite # D 4
Eugene. Oregon 97402
(541) 688-3020
February 23,2001
Express Companies
P.O. Box 26423
Eugene. OR 97402
Re: 1326 Wimbledon. STlrinufield. OR - Permit #01-01305-01 - .lob # 01037
As you requested, a compaction inspection of the gravel-under the proposed toundation
wa... perlonned at the above noted site on February 22,2001, in preparation for the
construction involving 1oundations for the proposed residence. The excavation involved
the placement of %" minus crushed river rock. The depth of the fill is a minimum of 4"
and is compacted to a minimum density of90% of a modified proctor. Site was proof
roned with a fully loaded dump truck (load ticket of over 10 tons) and no pumping or
exce~sive deneclion~ weft: no led. The fiU as prepared is adequate to support the proposed
residential toundation.
Thank you for this opportunity lo be ofscrvlce. If you have any questions please don't
hesitate to call me at (541) 688-3020
v cry truly your::.
,
i
,
Owcn Grovcr P .E.