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HomeMy WebLinkAboutPermit Correspondence 1991-11-21 .. . . ( @ Branch Engineering " 212 C1 St;reet; Springfield, Oregon 97477 (603J 74S-0637 FAX (603J 746-0389 21 Nov 1991 City of Springfield Planning and Development nD"I~~U"I'I'} ':::')(""''',"y C".."'.....:..n ..... . e ...."'I~ ~~uv I 225 North Fifth Springfield, OR 97477 Re: Harold Brown pole structure - 22II Dornoch - City Job #910086 We visited the above referenced site to verify pier construction, as backfills had occurred without City inspection. We found the following: 1. The structure consists of a conventional 6x6 poIe-framed, metal sided struciure with manufactured trusses and crushed rock floor. 2. The concrete piers extend approximately 6" beyond the edge of the poles, indicating an 18" diameter bore. 3, Working a 1/2" diameter steeI probe diagonally into the soil surrounding several piers revealed an incompressible material of the same diameter as the pier top, to a depth of about 30", where our probe met refusal. 4, The owner states that he had the holes bored bet\yeen 3' and3-1!2', and, backfilled with 'CO',',""':",':' "'rI~ ""~ut ;';-'~l..jr(.....,th. :1~"U"........t,.,o"'; th.... ....~~~~v<;)t;on ;n.~nPr. tiO!1 W"S no' r~qlll'red ............. ""..... ....yrU-O..........J..... ...........v.'-- ul.t......,. ...... -.. :-. .r-.~';'.-_.. ..... .. ~-' . Based on items 2, 3, and 4, we conclude that the concrete pole embedment is 18" in diameter, and at least 36" deep. \. TRANepORTATION CIVIL eURVEYINGI ./