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«~ .. ~ ..r..' . •. ~., rr~w ~~ ... ... .... rte- ~ .. ..~..~w» ~ ....++..w.... ..~.~ . .~. ~ ....... • ..~ <br />a <br />~ ~ Fous~tdation Engi~nee~g <br />Professional Geotechnical Services <br />Mr. Stephen Wendell <br />3620 Spr;ng Boulevard <br />Eugene, Qregan 97405 <br />Proposed South Shasta Loap <br />Springcrest P.U.D. <br />Eugene, Oregon <br />Dear Mr. Wendell: <br />June 16, 1994 <br />P~j~iP-17 29 <br />We prepared this letter at the request of Mr. Tom Wilson. A site plan showing <br />the proposed Sauth Shasta Loap a!lgnment ~s attached. We have reviewed the <br />proposed allgnme~t and earth fill required to construct the road. The attached figure <br />shows that approximately 20 to 25 feet of ftlt wlti encroach Into ~n active landslide <br />area which was mapped dining our geologic reconnaissance (see our report dated <br />January 21 ~ 1994.. <br />As stated in our report, landsilde areas can be activated by "improper <br />construction practice, such ~s cutting into the i~ndsfide toe, overloading the slope by <br />filling and/ar conducting water into the slide by improper drainage." <br />We #herefore do not recommend filling into the landslide area as shown by the <br />construction of South Shasta Loop. If the road construction cannot be avoided, <br />rerouting of the road away from the landslide or extensive geotechnical evaluations <br />and treatment of the landslide will be required. <br />We trust this information meets your present requirements. <br />Sincerely, <br />FO DAT N ENG G, INC. <br />.~1 ~ ~ <br />eder~ok hrali, .E, <br />enipr Consultant <br />GTId h <br />Enclosure <br />~74bp SW H~.ntika~ I~o~d, 5wke D • Par~land p~ 0722~8~5~ ~ ~5a3~ 684.95I4 • FAX t5Q3 598-443 <br />n ~ ~3~i~3 ~~ ~ .Lb~Nna3 ~ v~ra~ ~ t ~ ~~ ~~ r ~~ n <br />