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500 Willow Drive South, Orono, Minnesota <br /> October 18, 2017 <br /> Page 3 of 4 <br /> DESIGN PARAMETERS AND PROVISIONS <br /> DESIGN PROVISIONS: <br /> 1. REFER TO BOULDER RETAINING WALL INDUSTRY STANDARD SPECIFICATIONS AS THEY ARE <br /> INTEGRAL TO THIS PLAN <br /> 2. THE DESIGN OF THIS RETAINING WALL SYSTEM WAS BASED UPON THE EFFECTIVE STRENGTH <br /> PARAMETERS SHOWN ON THE"SOIL VALUES"TABLE.UNLESS OTHEWISE NOTED,NO FORMAL <br /> SOIL INFORMATION WAS PROVIDED BY THE OWNER OR OWNER'S REPRESENTATIVE.IF SOIL <br /> CONDITIONS VARY AT TIME OF CONSTRUCTION,WALL ENGINEER MUST BE CONTACTED TO <br /> DETERMINE IF A REVISED DESIGN IS NEEDED. <br /> 3. THE WALL DESIGN WAS BASED ON THE INFORMATION NOTED IN THE LETTER ABOVE. <br /> 4. REFER TO WALL CALCULATIONS FOR BEARING CAPACITY REQUIREMENTS. <br /> 5. NO PRODUCT/MATERIAL SUBSTITUTIONS WILL BE ALLOWED WITHOUT PRIOR WRITTEN <br /> PERMISSION OF CRITERIUM-SCHIMNOWSKI ENGINEERS. <br /> 6. FINAL SITE GRADES AND ROOF DRAINS SHALL DIRECT RUNOFF AWAY FROM ANY RETAINING <br /> WALL(S).UNLESS OTHERWISE NOTED,THE WALL(S)HAS NOT BEEN DESIGNED FOR <br /> HYDROSTATIC SURCHARGE LOADING. <br /> 7. THE WALL DESIGN WAS PERFORMED USING DESIGN GUIDELINES PRESENTED IN THE THIRD <br /> EDITION OF THE"DESIGN MANUAL FOR SEGMENTAL RETAINING WALLS"PUBLISHED BY NCMA. <br /> DESIGN LIMITATIONS: <br /> 1. THE INFORMATION PROVIDED WITHIN THESE DOCUMENTS IS FOR THE STRUCTURAL <br /> DESIGN OF THE PROPOSED RETAINING WALL(S)ONLY. THE REQUIREMENTS FOR AND/OR WORK <br /> RELATED TO HANDRAILS,GUARDRAILS,OR OTHER LIFE/SAFETY ISSUES ARE EXCLUDED FROM <br /> THESE DOCUMENTS AND ARE TO BE PROVIDED BY OTHERS. <br /> 2. SITE LAYOUT AND GRADING DESIGN ARE NOT INCLUDED IN WALL DESIGN SERVICES.THOSE <br /> SERVICE ARE THE RESPONSIBILITY OF THE SITE CIVIL ENGINEER. <br /> 3. INTERNAL COMPOUND STABILITY(ICS)HAS BEEN CALCULATED FOR THIS PROJECT BY <br /> CRITERIUM.HOWEVER,ICS IS NOT A SUBSTITUTE FOR A GLOBAL STABILITY ANALYSIS WHICH <br /> SHOULD BE PERFORMED BY A QUALIFIED GEOTECHNICAL ENGINEER.ADDITIONAL SUBSURFACE <br /> EXPLORATION MAY BE REQUIRED. <br /> SUGGESTED QUALITY ASSURANCE REQUIREMENTS: <br /> 1. A QUALIFIED ENGINEER OR TECHNICIAN SHALL SUPERVISE THE WALL CONSTRUCTION TO <br /> VERIFY SITE SOIL CONDITIONS. IF THE PROJECT GEOTECHNICAL ENGINEER DOES NOT PERFORM <br /> THIS WORK,A QUALIFIED GEOTECHNICAL ENGINEER/TECHNICIAN SHALL BE HIRED TO ASSURE <br /> THE RETAINING WALL IS CONSTRUCTED WITH PROPER SOIL PARAMETERS. <br /> 2. A QUALIFIED GEOTECHNICAL ENGINEER SHALL BE CONSULTED TO VERIFY THE SUITABILITY OF <br /> DESIGN ASSUMPTIONS MADE BY CRITERIUM. <br /> 3. WALL EXCAVATION AND SOILS SHALL BE INSPECTED FOR GROUNDWATER CONDITIONS.THE <br /> GEOTECHNICAL ENGINEER SHALL DETERMINE ADDITIONAL DRAINAGE PROVISIONS TO BE <br /> INCORORATED INTO THE WALL DESIGN. <br /> 4. THE WALL DESIGN ENGINEER SHALL BE HIRED TO PERFORM A PRE-CONSTRUCTION SITE VISIT. <br /> 5. THE WALL DESIGN ENGINEER CAN BE HIRED FOR CONSTRUCTION OBSERVATION SERVICES. <br /> 6. THE WALL CONTRACTOR IS RESPONSIBLE FOR MAINTAINING QUALITY CONTROL FOR THE <br /> CONSTRUCTION OF THE WALL IN ACCORDANCE WITH CONTRACT REQUIREMENTS. <br /> 7. SEE PROJECT CONTRACT DOCUMENTS FOR SPECIFIC DETAILS ON THE SCOPE OF WORK THAT <br /> WILL BE PROVIDED BY ALL PARTIES. <br /> I <br /> CRITERIUM-SCHIMNOWSKI ENGINEERS <br /> TEL 651 779-7700 <br />