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HomeMy WebLinkAbout17- Task Order 3 - DOWL - Design of Stormwater Treatment UnitsTASK ORDER NUMBER 3 Issued under the authority of Professional Services Master Task Order Agreement between the City of Bozeman and DOWL for: Professional and technical services for engineering design, preparation of construction documents, project bidding, and construction administration services for various stormwater improvement projects within the City of Bozeman This Task Order is dated March 24 2017 between City of Bozeman (City) and DOWL (Contractor). The following representatives have been designated for the work performed under this Task Order: City: Kyle Mehrens Contractor: Zach Lowe, P.E. SCOPE OF WORK: See attached E=BITA-Task Order #3 —Scope of Services dated March 24, 2017 COMPENSATION: Contractor shall be reimbursed on a lump sum basis in the amount of $ 41,075.00 . Contractor shall invoice no more often than monthly for services provided in the prior month. The provisions of the Professional Services Master Task Order Agreement and any Special Terms and Conditions and/or Exhibits or Attachments to this Task Order shall govern the Work. IN WITNESS WHEREOF, the parties authorized to commit resources of the companies have executed this Task Order: Cit Bozeman By. ' Title: W4CArA r i rNgjjX1 jO ✓ Date: �'y-l-7 Contractor By: Title: aivf2 10 /n Date: .3 —4 4--i,/ Fed. ID. No. 92-0166301 �:. DOWL MEMORANDUM To: I Kyle Mehrens From: I Zach Lowe, P.E. Date: I March 24, 2017 Subject: I Bozeman Stormwater Term Contract: Task Order #3 Scope of Services Task Order #3 — Downtown Separator Units The following tasks will be undertaken by DOWL in its design of separator units on the City of Bozeman's stormwater collection system between Main Street and the alley north of Main Street on N 3rd, N Grand, N Willson, and N Tracy Avenues. Any item not specifically discussed or as otherwise noted are assumed to be a City of Bozeman (COB) responsibility or beyond the services identified in this scope. Task 100 — Project Management & Data Collection 1. Compile and review previous stormwater modelling completed by DOWL. 2. DOWL will survey two of the downtown sites for utility locations and topographic information (N 3rd and N Tracy Aves), the City will provide existing survey data for the two remaining sites (N. Grand and N Willson Aves). 3. Project siting meeting with owner. 4. Convert survey into AutoCAD Civil3D format. 5. Project Management. Task 110— Preliminary Design & Hydraulic Evaluation 1. Update stormwater model as necessary to evaluate potential treatment devices. Modeling will be limited to the project drainage basin. 2. Evaluate site alternatives with different layouts and bypass structures (if required). 3. Identify any potential flooding hazards associated with the installation of the treatment devices. 4. Identify design event for the stormwater treatment device. 5. Evaluate utility conflicts. 6. Prepare a memorandum summarizing the drainage basin treated, hydraulic performance, design storm, treatment devices suitable for placement in the downtown sites. 7. Preliminary engineer's cost estimate 8. Review meeting with City to determine recommended alternative. Submittals: 1. Design memorandum with cost estimates 2. Draft construction drawings and specifications 406-5868834 ■ 800-865-9847 (fax) ■ 2090 Stadium Drive ■ Bozeman, Montana 59715 ■ www.dowl.com Alaska ■ Arizona . Colorado ■ Montana ■ North Dakota ■ Oregon ■ Washington ■ Wyoming Mr. Kyle Mehrens City of Bozeman Stormwater Division March 21, 2017 Page 2 Task 120— Final Design Based on comments received during preliminary design, DOWL will finalize the construction drawings and specifications. The plans and specifications will be given to the City of Bozeman to put out for bid. 1. Plan set predicted to include the following: a. General sheets including cover page, general notes and survey control b. Demolition plan c. Potential utility relocate design d. Plan and profile sheets for the treatment system e. Erosion control plan f. Details g. Surface restoration plan 2. Technical Specifications 3. QA/QC Submittals: Final Design Package 1. Final Construction Drawings and Specifications Task 200—Bidding and Contract Award Phase 1. Answer questions from potential contractors and suppliers. 2. Review submittals from the successful bidder 3. Attend a pre -construction meeting. 4. Assist contractor in obtaining City of Bozeman Stormwater Permit(s) Task 300 — Pre -Construction Phase 1. Coordinate with Contractor layout and grades for proposed stormwater improvements. DOWL will work with the contractor to establish the horizontal and vertical positions of the improvements taking into account existing utilities, future maintenance and ease of construction. 2. DOWL will review Contractor submittals. 3. Attend Pre -construction meeting. Task 400— Part -Time Inspection 1. DOWL will provide part-time inspection during construction of the stormwater improvements to monitor that construction is in compliance with the project plans and specifications. All existing utilities will be surveyed for final as -built drawings. 2. Daily inspection reports will be completed with accompanying photos and routed to the City Stormwater Division Task 500—As-Built Drawings and Close-out 1. DOWL will compile surveyed information taking during construction and complete updated 'as -built' drawings, and deliver plans as detailed in the Engineering Department's "Design Standards and Specifications Policy." (2 full-size paper copies, 1 reproducible copy and 1 digital copy) Mr. Kyle Mehrens City of Bozeman Stormwater Division March 21, 2017 Page 3 2. DOWL will participate in a final inspection with the Contractor and City, as well as a two-year warrantee walk-through. 3. DOWL will submit the City's required documentation detailed in the Engineering Department's "Design Standards and Specifications Policy" Schedule: DOWL can begin work on the project immediately; this schedule assumes a mid-April start date: Data Collection April 17, 2017 Preliminary Design May 1, 2017 Final Design May 15, 2017 Bidding Phase May 27, 2017 Pre -Construction Phase TBD Inspection and Close Out TBD Compensation: DOWL proposes to complete this project on a lump sum basis in the amount of $41,075 which will be invoiced monthly based on the percent complete for each of the aforementioned tasks. Exclusions: DOWL will rely on existing base mapping provided by the City for the Willson and Grand Avenue sites and does not anticipate having to perform any additional topographic survey for these areas. This scope also excludes any review or permitting fees that may apply. If you have any questions or would like further details of this scope of services, please do not hesitate to contact us.