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A Proposal for Geotechnical Services Old Snelling Avenue Roadway Improvements %11� Arden Hills, Minnesota Due to the anticipated traffic levels and speed limits for the project area, we propose that traffic control via work ahead signs and flaggers should be sufficient for traffic control at the boring locations. Soil sampling in the borings will be performed at 2 -1/2 -foot intervals to the termination depth of the borings. Soil sampling will be performed in general accordance with ASTM D 1586. A geotechnical engineer will visually classify field -collected samples in general accordance with ASTM D 2488. Each soil sample's color, relative moisture, SPT N -value, relative density, consistency and estimated compressive strength will be documented on soil boring logs. NTI has assumed that there is reasonable access to the proposed borehole locations. This would include slopes suitable for traversing with a geotechnical drill rig, safe working distances from utilities, removal of site obstructions that prohibit access to the proposed borehole locations, etc. In addition, drill rig access to the proposed boring locations may result in cracking of onsite pavements or sidewalks and rutting of site soils. NTI will take reasonable precautions to prevent such damage but repair and final restoration inclusive of settled borings shall be performed by others at no charge to NTI. NTI's proposal does not include tree clearing or ground pressure reducing mats, etc. If required, NTI will contact the signatory of this proposal for approval of additional fees prior to implementation. We will measure for the presence of groundwater or lack thereof when we complete the soil borings. We will also take a water level reading 10 minutes after water is first encountered, and upon termination of the borehole. We will backfill the soil borings with soil cuttings or high solids bentonite grout to comply with current MDH regulations. We will perform laboratory tests on samples selected by a representative of SEH. Our proposal fee includes the following: • Moisture Content tests (70) • Atterberg Limits tests (5) • Mechanical sieve through the No. 200 only (5) • Mechanical nest of sieves through No. 200 (5) • Standard Proctor tests (3) • Hveem Stabilometer (R -Value) tests (3) Upon completion of the field and laboratory work, a geotechnical data report will be prepared. The report will include the logs of the borings, boring location diagram, and the results of the field and laboratory tests. NTI's engineers are also available to provide geotechnical guidance to the design team, evaluate value engineered alternatives, review earthwork, groundwater control, and other civil plans and specifications as an additional service. NTI's engineers, special inspectors and technicians are available to provide construction and materials testing services once the project construction begins. This provides professional continuity of services throughout the design and construction of the project.