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<br />Date
<br />By
<br />- -�
<br />Revisions
<br />Chris D. Breeds, P.E.
<br />SCALE
<br />111 =300
<br />Sub Terra Inc.
<br />�
<br />Twe my m i l e Sandstone Cliff
<br />J
<br />OTelephone: 8112 304th Ave. SE, Suite B Preston, WA 98050
<br />(425) 222 -5425 E -mail: subterfa�jtwlink.com Fax: (425) 222 -7846
<br />Rockfall Hazard Mitigation
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<br />A � ���\ ,� "a / - / is plan shows the as - -- fi —;- -- - - --
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<br />1
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<br />. �
<br />condition o went mi e
<br />' - + Rockfall Hazard Mitigation
<br />- -+ — -_ -- -'._- - i 7140
<br />z+ ., t � -:d0 I
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<br />- P undertaken
<br />+1 N - am y
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<br />.W 0, 1 �' �F � Xy -� f wentymile Coal Company.
<br />7
<br />- _ 00 W 2+00 3 ' ` ' -
<br />I! \,,, +:^ •.," 'b- ✓J e k 4 s t o i / 7129
<br />'20�
<br />I prepared data
<br />I l ` The an was pr pare from —
<br />p
<br />a ;• I
<br />+ + -, d information received from - - -! �— -
<br />f- -
<br />an
<br />and Associates, PLS. - --
<br />EPP a
<br />1.q] 2+00 3+W 4
<br />Ij x.
<br />Terra Inc. has examined the =1 - - - - - - -� TT:,=
<br />-2 +W -1+W - 0+00 1 +W 2 +00 3+W Sub ,
<br />as built data and information and �--
<br />_
<br />has concluded that it meets the —
<br />\ '- - ,u •.,,. rti tl 7950
<br />design criteria for the project.
<br />OP
<br />I
<br />4+W
<br />No.
<br />Date
<br />By
<br />APpd•
<br />Revisions
<br />Chris D. Breeds, P.E.
<br />SCALE
<br />111 =300
<br />Sub Terra Inc.
<br />�
<br />Twe my m i l e Sandstone Cliff
<br />Chk
<br />OTelephone: 8112 304th Ave. SE, Suite B Preston, WA 98050
<br />(425) 222 -5425 E -mail: subterfa�jtwlink.com Fax: (425) 222 -7846
<br />Rockfall Hazard Mitigation
<br />REGis
<br />-EB
<br />DESIGNED
<br />DATE
<br />BY
<br />02 -15-00
<br />1 SGJ
<br />Q'•.
<br />o?
<br />As—Built
<br />DRAWN
<br />i�
<br />:0 °j %cc
<br />1. % / \� ��4r
<br />r�
<br />DATE
<br />BY
<br />02 -15 -00
<br />SGJ
<br />SHEET NO.
<br />eCC�e+ �q1 `
<br />Exhibit 7f -1
<br />III
<br />VIII VIII VIII VIII VIII IIII IIII
<br />DATREVISED
<br />aY
<br />
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