DRAFT <br />1 INTRODUCTION <br />As requested, GRI completed a preliminary geotechnical investigation for the proposed <br />2.M0 Indoor Football Practice Facility at the University of Oregon (UO) in Eugene, Oregon. <br />The general location of the project site is shown on the Vicinity Map, Figure 1. The purpose <br />of our investigation was to evaluate subsurface conditions at the site and develop <br />geotechnical conclusions and recommendations for design and construction of the <br />project. The investigation included a review of existing subsurface information for the <br />project area, subsurface explorations, laboratory testing, and engineering analyses. This <br />report describes the work accomplished and provides our preliminary geotechnical <br />recommendations for design and construction of the project. During final design, these <br />preliminary recommendations will be reviewed and a final geotechnical report will be <br />provided for the project. <br />2 PROJECT DESCRIPTION <br />Our understanding of the project is based on information you provided, including a March <br />17, 2021, geotechnical scope of work document prepared by Walter P. Moore and <br />Associates, Inc., and KPFF, Inc., the structural and civil engineers for the project, <br />respectively. On this basis, we understand the project will include construction of a new <br />indoor practice field facility in the area located immediately west of the existing UO <br />Hatfield-Dowlin Complex. We understand the new facility will consist of a large, single- <br />story, clear-span roof and shell structure that will be established near existing site grades <br />and have a footprint on the order of 250 feet by 700 feet. Ancillary mechanical and storage <br />areas will be present at the western end of the structure, and a separate, free-standing, <br />three-story building housing a weight room and player's lounge will be constructed at the <br />eastern end of the structure and immediately adjacent to the existing Hatfield-Dowlin <br />Complex. Depending on the final configuration of the facility and any connections to the <br />existing complex, differential settlements between new and existing structures and/or <br />potential impacts to existing structures could be significant considerations for design. <br />Preliminary grading plans for the project are unavailable at this time, although we <br />anticipate the maximum height of cuts and fills for overall site grading will be less than <br />about 5 feet. <br />We understand the new roof and shell structure will be supported by isolated columns <br />spaced about every 10 feet along the perimeter of the structure. Typical gravity loads will <br />be resisted by the perimeter columns, while lateral loads due to wind or seismic forces will <br />be resisted primarily by four sets of interior "abutment" columns located near the corners <br />of the practice field. Preliminary information indicates the perimeter roof columns will have <br />maximum dead, live, and lateral loads on the order of 150 kips, 125 kips, and 30 kips, <br />respectively, and will be supported by isolated or continuous spread footings. Estimated <br />loads for the abutment columns are still being developed at this time; however, we <br />GRI #6497-A - 2.MO Indoor Football Practice Facility Page 1 <br />August 26, 2021 <br />