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6/302022 Exhibit B-3 Page 2 of 3 <br />SRF Consulting Group, Inc <br />Client: Sherburne County <br />Project: CSAH 33 Auburn Street to CSAH 13 (Twin Lakes Road) <br />Amendment No. 3 - Future Trail / Drainage Design <br />Subconsultants: <br />Assumptions: <br />- Realignment of CSAH 33 (up to 11 feet north) is requested from 350 feet west of <br />Auburn Street thru Smith Street and sections alongthe new corridor prior to the <br />roundaboutto accommodate the future trail along south side of CSAH 33. <br />- No trail surfacing or subbase (aggregate or bituminous) is planned. <br />- An urban section consisting of curb and gutter along south edge of shoulder from <br />approximately 350 feet west of Auburn Street east through the intersection of <br />Quincy Street is planned for accommodating the future trail. Additional sections of <br />urban (curb and gutter) are planned from approximately 100 feet of the planned <br />cattle pass easttothe roundabout. <br />- Urban boulevard width will be a typical 5 feet measured from face of curb to the <br />grading PI for the section of CSAH 33 from the TH 169 exit ramp east thru Quincy <br />Street. <br />- Additional stormwater treatment locations, including pond(s) will be reviewed to <br />accommodate both the current project and future trail construction. Stormwater <br />treatment locations will be located and designed to provide flexibility for the current <br />and future expansion abilities. <br />- Adjust two previously proposed stormwater treatment ditches to accommodate <br />road shiftto the north. Proposed design does NOT account for treatment of future <br />trail impervious. <br />- QC reviews are included in each task as necessary. <br />- No bench will be graded into the back slope alongthe rural section east of Quincy <br />Street for the future trail. <br />Client Deliverables: <br />- Review of 30% Plans (2nd submittal package) <br />- Review of updated preliminary layout, cost estimates and memos associated with <br />the future trail accommodation. <br />3.1.15 Stormwater/ Drainage design <br />3.1.15.1 Stormwater treatment ditch revisions <br />3.1.15.2 Catch basin spacing and storm sewer design to State Aid standards from 400 ft <br />west of Auburn St. to Quincy St. <br />3.1.15.3 Catch basin spacing and storm sewer design (1,500 feet) to State Aid standards <br />from 100 ft west of planned cattle pass to the proposed roundabout. <br />3.1.15.4 Prepare additional Drainage Quantities and Tabulations for 60%, 95%and 100% <br />Plan submittals (beyond what was included for culverts in original scope). <br />3.1.15.5 Review drainage ditches and coordinate special ditch profiles. <br />3.1.15.6 Update Drainage Map for revisions and document future trail <br />SRF Deliverables: <br />- Revised Project Layout& Drainage Area Map <br />- Drainage Plan Sheets <br />SUBTOTAL - TASK 3.0 <br />Work Tasks and Person -Hour Estimates <br />'SRF <br />13725.00 <br />2 - - - 12 - <br />- 15 <br />- 29 <br />$3,646.00 <br />10 - - - 33 - <br />- 70 <br />- 113 <br />$14,292.00 <br />3 - - - S - <br />- 10 <br />- 21 <br />$2,754.00 <br />2 - - - 6 - <br />- 17 <br />- 25 <br />$3,13S.00 <br />2 - - 4 12 - <br />- - <br />- 13 <br />$2,452.00 <br />- - - - 1 - <br />- 2 <br />- 3 <br />$360.00 <br />19 0 0 4 72 0 0 114 0 209 $26,642.00 <br />13725 Amd 3.xlsx <br />SRF CONSULTING GROUP, INC. MINNEAPOLIS. MN <br />