Vegetation Evaluation Letter.pdfApril 13, 2016
Steve Hanson
7819 175th St SW
Edmonds, WA 98026
� d.
11: �I 151FRI �
PO Box 44840 PHONE (253) 537-9400
Tacoma, Washington 98448 FAX (253) 537-9401
Subject: Evaluation of Soil Stabilization with Pi ennanent Vegetation
Existing Rockery and Modular Block Walls
7819 1751Street SW
Edmonds, WA 98026
MGI Project P491 -T15
Dear Mr. Hanson:
Migizi Group, Inc. (MGI) previously provided a geotechnical evaluation related to the modular
block wall at the above referenced site (Limited Geotechnical Evaluation dated January 25, 2016).
At that time it was recommended that the retaining wall was suited for its intended purpose, as
a facing for stable soils and as an erosion control measure, and could remain in place as currently
constructed. However, we also recommended that permanent vegetation be established over the
exposed soils below the modular block wall.
You have now established permanent vegetation on the exposed soils below the block wall
consisting of 24 Oregon Grape plants (one gallon size). These plantings adequately cover the
exposed soils and satisfy our recommendation of January 25, 2016.
CLOSURE
Should you have any questions or need additional information, please call.
Respectfully submitted,
James E. Brigham, P.E.
Principal Engineer
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