Memorandum
City of Lawrence
Department of Utilities
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TO: |
David L. Corliss, City Manager Cynthia Wagner, Assistant City Manager Diane Stoddard, Assistant City Manager
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FROM: |
Shelley Schupp, Project Engineer
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CC: |
Dave Wagner, Director of Utilities Philip Ciesielski, Assistant Director of Utilities Mike Lawless, Assistant Director of Utilities Beth Krishtalka, Assistant to Director Mark Hegeman, Utilities Operations Superintendent
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Date: |
September 22, 2010
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RE: |
Negotiate a Design and Construction Phase Engineering Services Agreement for Project UT1003CS, 23rd Street Bridge Replacement Utilities Relocation
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Please include the following item on the City Commission agenda for consideration at the September 28, 2010 meeting:
Authorize Staff to negotiate an Engineering Services Agreement with Professional Engineering Consultants for Design and Construction Phase Engineering Services for Project UT1003CS, 23rd Street Bridge Replacement Utilities Relocation.
Project Details
The Kansas Department of Transportation (KDOT) is in the process of design and property acquisition for the replacement of the 23rd Street/K10 bridge located between Haskell and Learnard. KDOT anticipates completing design and bidding the project for construction starting in 2012. Utility relocations need to be completed by the end of the year 2011.
The City maintains several existing sanitary sewer interceptor lines and forcemains constructed at various times and ranging in diameter from 27” to 12” which cross 23rd Street under the existing bridge span (map attached). These lines are in conflict with the design and the construction area of the new bridge and require relocation prior to KDOT’s the construction of the new bridge. As part of the project the design will consider the consolidation of the existing multiple pipe crossings into a minimum number of crossings with appropriate influent and distribution structures upstream and downstream of the bridge crossing.
In addition to the sanitary sewer lines there is also approximately 550 lf of 12” diameter watermain within the area of the bridge project requiring relocation.
Project History
On July 21, 2010, the City Commission authorized staff to advertise a Request for Proposals for Design and Construction Phase Engineering Services for 23rd Street KDOT bridge Replacement Utilities Relocations.
On August 27, 2010, in response to the Request for Proposals, staff received proposals from four (4) firms interested in the project. Proposals were received from BG Consultants; Delich, Roth, and Goodwillie; Professional Engineering Consultants (PEC), and Landplan Engineering.
A review committee consisting of Department of Utilities’ and City Manager’s staff evaluated the four proposals. Staff consistently ranked Professional Engineering Consultants as the highest qualified respondent for the project. As indicated in the RFP the following criteria were used to rate the responses:
· Project knowledge & approach
o PEC presented a detailed project approach which included specific work tasks related to the following:
§ Preliminary assessment of the existing infrastructure in this area is thorough. PEC identified the critical design challenges of relocating force mains that convey almost one half of the City’s wastewater flow. PEC understood that the design will need to maintain current level of service during construction. Also noted that design will need to include how the relocation will effect current pump operation.
§ Outlined a general project approach that was complete and practical.
§ Provided two preliminary alternative designs for consideration.
§ Considered additional criteria: trail enhancements, adding flow measurement to the forcemains, lighting, odor control, and maintenance access.
· Project qualifications and firm experience with similar projects
o PEC presented significant experience working with sanitary sewer interceptor design and forcemain relocation in fully developed environments. At the Topeka wastewater treatment plant, PEC designed the relocation of multiple large diameter force mains into one inlet/thrust block structure.
o PEC has included several waterline relocation projects.
· Key project staff experience
o PEC presented a project team well qualified to perform the work as requested in the RFP. Key project staff, as identified in the RFP, showed significant related experience on similar projects in Kansas. Additionally, as an engineering firm, PEC is capable of providing civil, survey, and electrical engineering services for the project and identified a geotechnical engineer (sub-consultant) as part of the project team.
· Schedule
o PEC presented a schedule that is reasonable and meets the construction deadline.
Each firm also provided a schedule of hourly rates with their proposal for reference. Hourly rates provided by PEC were found to be consistent with rates provided by other respondents.
Project Funding
Funds for project design are included in the Department of Utilities 2010 rates and Capital Improvements budget. Funds for project construction are included in 2011 rates and non-bonded Capital Improvement Plan.
Action Request
Authorize Staff to negotiate an Engineering Services Agreement with Professional Engineering Consultants for Design and Construction Phase Engineering Services for project UT1003CS, 23rd Street Bridge Replacement Utilities relocation.