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R-86-828 - 2/24/1986ing, Inc., Now Therefore, �JQJ RESOLUTION NO. �p(Q I\ WHEREAS, the City of Round Rock is desirous of making certain improvements to Cushing Drive and School Days Lane, and 1 WHEREAS, subsurface investigations and pavement recommendations are needed in order to accomplish said improvements, and WHEREAS, the Council wishes to accept the proposal of Brent Rauhut Engineer- BE IT RESOLVED BY THE COUNCIL OF THE CITY OF ROUND ROCK, TEXAS That the proposal of Brent Rauhut Engineering, Inc. is hereby accepted, and the Mayor is authorized and directed to sign said proposal, a copy of which, is attached as "Exhibit A ". ATTEST: RESOLVED this 24th day of February, 1986. JC1ANNE LAND, City Secretary MIKE ROBINSON, Mayor City of Round Rock, Texas io?I /,{ {N / - W es✓ February 3, 1986 Mr. Al Wille City of Round Rock 214 East Main Street Round Rock, Texas 78664 ' Subject: Technical /and Cost Proposals for Subsurface Investigations and Pavement Recommendations for Improvements to Cushing Drive and School Days Lane in Round Rock, Texas Dear Mr. Wille: As discussed in our phone conversation of January 24, 1986, this letter was prepared to transmit our technical and cost proposals for the subsurface investigations and pavement thickness recommendations for the proposed improvements to Cushing Drive and School Days Lane in Round Rock, Texas. These proposals are enclosed. The cost proposal is based on our discussion with you and on information provided by Mr. Michael Graeber of Carlson and Dippel, Inc. and includes drilling roadway borings that will be located in the proposed right -of -way. These roadway borings will generally be drilled to a depth of approximately five feet below the proposed grade. We greatly appreciate the opportunity to be of assistance on this project and look forward to serving you. If you have any questions or comments concerning either the technical or cost proposal, please contact me at your convenience. Respectfully submitted, Mark P. Gardner Graduate Engineer ,x4m( g hire -Ge g ,: Gi!ccd 'v ,7aiv Sliztanza Attachments: Technical and Cost Proposals MPG : nmf Joined to Provide Engineering Services IO214 I.H. 35 North /Austin, Texas 78753/512 837 - 6580, 837 - 0870 SUBSURFACE INVESTIGATION AND PAVEMENT DESIGN RECOMMENDATIONS FOR IMPROVEMENTS TO CUSHING DRIVE AND SCHOOL DAYS LANE ROUND ROCK, TEXAS TECHNICAL PROPOSAL The following is a brief discussion of the Scope of Work for conducting the Subsurface Investigation and providing Pavement Thickness Recommendations for Improvements to Cushing Drive and School Days Lane in Round Rock, Texas, and is based on our current understanding of the proposed Capital Improvement Project. The proposed investigation includes subsurface investigation, laboratory testing,'pavement design analyses, and preparation of an engineering report. SUBSURFACE INVESTIGATIONS Bore holes are planned along the existing right -of -way to ad- equately define the subsurface conditions at the site. For proposal purposes, it was assumed that bore holes would be spaced approximately 500 feet apart along the existing Cushing Drive from Gattis School Road to Logan Street, with one additional bore hole planned for School Days Lane. The actual bore hole locations will be determined after authorization to proceed, and will depend on the current visible pavement distress, access restrictions, existing utilities, and proposed pavement section. The locations and depths of the bore holes should supply representative information for the project site with regard to the engineering properties of the materials. For proposal purposes, it is expected that 8 roadway borings will be drilled. All of the bore holes will extend to a total depth of approximately 5 feet below the proposed subgrade elevation or to an approximate total depth of 8 feet beneath the existing surface. All of the bore holes are located within the proposed paved surface. Based on information provided to this office, there are no significant cut or fill areas, or structures such as bridges or retaining walls considered in this work effort. LABORATORY TESTING Laboratory testing should include unit weight and moisture content determinations, Atterberg limits, repeated load triaxial, and sieve analysis tests to classify and determine the strength properties of the subsurface soils. Sieve analysis shall be performed on recovered samples of the existing base materials to determine if this material may be suitable for reuse in the new pavement structure. PAVEMENT THICKNESS DESIGN AND PREPARATION OF ENGINEERING REPORT Flexible pavement design alternatives will be prepared for the proposed pavements. Pavement thicknesses will be determined for both conventional cross sections and for pavements with the use of stabilized materials, if conditions warrant stabilization. Appropriate recommendations shall be provided discussing materials and quality assurance testing during construction, as well as any other geotechnical considerations pertinent to the proposed work effort An engineering report will be prepared which will document all field work, laboratory testing, and the pavement thicknesses recommended. All data and test results will be included in the report. SUBSURFACE INVESTIGATION AND PAVEMENT DESIGN RECOMMENDATIONS FOR IMPROVEMENTS TO CUSHING DRIVE AND SCHOOL DAYS LANE ROUND ROCK, TEXAS The following costs are estimated on the basis of anticipated subsurface conditions and our current understanding of the work desired. Actual costs should approximate this cost estimate, but may decrease or increase slightly based on the nature of the soil encountered or additional requirements levied by the client. SUBSURFACE INVESTIGATIONS Coordination & Staking *, 12.0 hrs. @ $35 /hr. $ 420.00 Mobilization & Demobilization 200.00 Drill and Sample, 64 if @ $12 /lf 768.00 Traffic Control, 1 day @ $450.00 /day 450.00 $1,838.00 LABORATORY TESTING Unit Weight and Moisture Content Tests, 5 @ $10 /ea Atterberg Limit Tests, 10 @ $25 /ea Repeated Load Triaxial Tests, 3 @ $150 /ea Sieve Tests, 6 @ $40 /ea Soil Processing, 3 hrs. @ $35 /hr. ANALYSIS AND REPORT Project Manager, 8 hrs. @ $60 /hr. Graduate Engineer, 24 hrs. @ $45 /hr. Staff Support, 10 hrs. @ $25 /hr. $ 50.00 250.00 450.00 240.00 105.00 $1,095.00 $480.00 1,080.00 250.00 $1,810.00 TOTAL ESTIMATED COSTS** $4,743.00 Accepted by __1'� Date e r (o * Coordination and staking includes locating bore holes, and coordinating with utility locators to insure that no underground utility lines are affected by drilling operations. * *Total Estimated Costs do not include the cost of horizontal and vertical control on bore holes. We anticipate that Carlson and Dippel, Inc. will provide surveying services for the vertical and horizontal location of the bore holes. If we must provide these services, all surveying costs will be charged on the basis of cost plus 10 percent. d den 2 �,,a ►t� ry, yof F,1. SUBSURFACE INVESTIGATION AND PAVEMENT DESIGN RECOMMENDATIONS FOR IMPROVEMENTS TO CUSHING DRIVE AND SCHOOL DAYS LANE ROUND ROCK, TEXAS The following costs are estimated on the basis of anticipated subsurface conditions and our current understanding of the work desired. Actual costs should approximate this cost estimate, but may decrease or increase slightly based on the nature of the soil encountered or additional requirements levied by the client. SUBSURFACE INVESTIGATIONS Coordination & Staking *, 12.0 hrs. @ $35 /hr. $ 420.00 Mobilization & Demobilization 200.00 Drill and Sample, 64 if @ $12 /lf 768.00 Traffic Control, 1 day @ $450.00 /day 450.00 $1,838.00 LABORATORY TESTING Unit Weight and Moisture Content Tests, 5 @ $10 /ea Atterberg Limit Tests, 10 @ $25 /ea Repeated Load Triaxial Tests, 3 @ $150 /ea Sieve Tests, 6 @ $40 /ea Soil Processing, 3 hrs. @ $35 /hr. ANALYSIS AND REPORT Project Manager, 8 hrs. @ $60 /hr. Graduate Engineer, 24 hrs. @ $45 /hr. Staff Support, 10 hrs. @ $25 /hr. TOTAL ESTIMATED COSTS ** Accepted by Date $ 50.00 250.00 450.00 240.00 105.00 $1,095.00 $480.00 1,080.00 250.00 $1,810.00 $4,743.00 * Coordination and staking includes locating bore holes, and coordinating with utility locators to insure that no underground utility lines are affected by drilling operations. * *Total Estimated Costs do not include the cost of horizontal and vertical control on bore holes. We anticipate that Carlson and Dippel, Inc. will provide surveying services for the vertical and horizontal location of the bore holes. If we must provide these services, all surveying costs will be charged on the basis of cost plus 10 percent.