HomeMy WebLinkAboutPermit Field Test & Inspection Report 2002-3-4
Apr-02-02 08:57A Mort;er Eng & Bu;ld;ng D
(541)484-6859
P"Ol
MORTIER
ENGINEERING, :eC.
STRUCTURAL
BUILDING DESIGN · FIRE PROTECTION
CODE CONSULTANT · PLAN CHECKING
CONSTRUCTION INSPECTION
1245 PEARL STREET
EUGENE, OREGON 97401
PHONE (541) 484-9080. FAX (541) 484.6859
TOLL FREE IN OREGON 1-877-661-9959
March 4, 2002
CO'Z'f Homes
1275 S 2M Street
Springfield, Oregon 97477
RE: 2375 35th Street, Springfield- Site/Soils Investigation - W.O. # 14350-RDR
As you requested, a site/soils investigation was performed on these three adjacent lots on February
28, 2002. Design for the site is as follows:
All unsuitable fill, vegetation, and un buildable material have been removed to native grade. The
native soil is a silty-clay loam with a Unified Soils Classification of ML intermixed with large stones
and a plasticity index of less than 15. The expansiveness of the soil is low (after Holtz 1959). A
maximum 4" of crushed rock should be installed with tracked excavation equipment to protect the
proposed building site in the event of inclement weather. A 3 inch diameter perforated drain line
with silt sock is to be installed at grade level at the uphill side of the excavation to dram excess
surface water that is present at thiS site.
On March 1, 2002, a compaction inspection was preformed after fill placement. The compacted
surface of the 12 to 18 inch deep, 1 1f2 II minus crushed rock IS adequate for a foundation bearing
capacity of 1500 pst, which IS adequate ~port the proposed conventional wood frame
residence. The compaction of the gravel surface ~eater than 95% of a standard proctor per
ASTM 0698-91. ~
Thank you for this qpportunlty to be of service. The enclosed Building Analysis Report and
Statement of Conditions and Limitattons is a part of this report. If you have questions regarding thiS
report, please contact me at 484-9080.