7501 HARDESON RD BASE FILE 2018-01-02 MF Import

CASCADE GEOTECHNICAL INC. June 2, IWI * a design life of twenty (20) yeais Job No. 9405-02G Our analysis of the pavement =tion options was based on design procedures outlined in the 1986 AASHTO design manual. The analysis was performed using AASHTO's pavement design computer program. 6.2 Reinforced Earth Wall Design We performed engineering analyses on two selected reinforced wall systems. These include the Terramesh System*, by Maccaferri Gabions*, and a wrap -around face reinforced earth wall using Tensar4 geogrids. The trramesh type wall was analyzed utilizing the computer program TERRA -AM, dated October, 1992, produced for analysis of Terramesh Systems. This program is based on calculation procedures given in the publication entitled "Maccaferri Gabions-Terramesh System", dated 1990. The Tensar geogrid reinforced wall design was based on design procedures outlined in "Tenser Technical Note - Guidelines for the Design of Tensar Geogrid Reinforced Soil Retaining Walls% dated August, 1986. A computer program based on these design procedures and entitled "TENSWAL", version 3.1, dated May 17, 1992, was utilized for design of this earth retaining system. 7.0 CONCLUSIONS We conclude that the site is geotechnically suitable for the proposed project, provided our geotechnical recommendations are carefully followed during the development of the project. Based on the results of our field investigation, we conclude that the proposed building loads may be transferred to bearing soil utilizing a standard spread footing foundation with slab -on -grade floors. Geotechnical recommendations for building placement are given below. 8