HomeMy WebLinkAboutPermit Field Test & Inspection Report 2002-6-24
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LAND SURVtYINCi . CONSTRUCTION SUrFRVISION . WATER RIGHT~ EXAMlNA' lONS
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- - CIVIL ENG'-NEFRINC . GFOTECHNICAt . ENVIRONMfNTAL
June 24, 2002
Adam & sarah Selene
c/o Grassroot8 Development
1135 CQI Young Road
eugene, Oregon 97401
RE: CWeruca"ltIOn ObHrVItiOn and Compaction evalulltlon
8e1en. Resklenoe
Lot 2 - SoutI' tI... NoIth
Springfield. ONgOll
on June 22,2002 a geotechnical engineer from Ford-N....Fassbender, Inc. observed the
owreXC8vation of the above referenced residential building lot. A tr8Ck....ae wee used to remove the 80ft
fill at a depth of 5 feet on the south side and tapered to native soil to the north. The natNe topsoil was
removed to expo." a mol8t day sCabgrado The ~ soil end some impOrted soil from a nearby lot
were placed outside the building fooqmnt to levet the future yard area. The building pad was baCkfilled
with pit-Nn quarry rock from Springfield Quarry. 5"..0 rock was placed on the bottom, ovarialn by 3'..0
grade to 1.5"-0 and capped with %"-0. ^ rock maten81 was placed In approximately 8-1nch ttllck lifts and
compac.t8d using a 3-toI'I vib,.(....'./, smoottHirum roler.
Observation and simple weight to volume ratioS indicate that the rOGk fill haS been compacted to at least
950Aa of the materials maximum dry density The rock fill atop the natiVe clay $LIbgrade has an allowable
bearing capacity up to 1,500 pel. The flIllS suitable far conventional ....dential per1rnetBr ItyIe footings.
Some compactlve QffortWSSI. r,c,.l..J to the fill placed In yard areas; however, this fill is n,~,'oIIl.1Jctural and
should be expected to settle and Slump. Damage may occur to fences, patios IInd other landscape
fealurBs atop this ftll.
we recammend that all footings be reinforced with at leaSt two #4 atBeI reinforcing bars, and that BUrf8ce
water be directed away from the foundatIOns and not alk)we(! to pond adjacent to footing.
Sincerely.
Ford-N... Fnabender Inc.
./
Ronald J. Oar
"6 Hwy. 99 N.. Suite tOO. P.O. 80112 2 71'i. EUlelle.OIl1J740Z. (!;41) H4 1852. "8X (541 J ~4".9!)lS
F-maU: mil"~fnflnc.net.Web'ittl. www.rllflnr.nd
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