Cedar St & Dog Track Wastewater Pump Station Rehabs Designs
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MEMORANDUM
August 3,2005
TO:
The Honorable Mayor and City Council Members
FROM:
Michael C. Van Milligen, City Manager
SUBJECT: Design and Engineering Construction Phase, Services for the Cedar Street
and Dog Track Wastewater Pump Station Rehabilitations
Eight responses were received to a Request for Proposals for engineering and design
services for modifications to the Cedar Street Lift Station and Dog Track Lift Station.
Three firms were selected for interviews, V&K Engineering, MSA Professional Services
and WHKS & Co. The firms were evaluated for experience, technical ability, project
design team, design approach and methodology, project track records, firm's
responsiveness, local economic impact, schedule evaluation, and the proposed cost to
complete the project.
Water Pollution Control Plant Manager Jonathan Brown recommends City Council
approval of the selection of WHKS & Co. to provide engineering design and
construction services for the Cedar Street Lift Station and Dog Track Lift Station
modifications project.
I concur with the recommendation and respectfully request Mayor and City Council
approval.
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Attachment
cc: Barry Lindahl, Corporation Counsel
Cindy Steinhauser, Assistant City Manager
Jonathan R. Brown, Water Pollution .Control Plant Manager
CITY OF DUBUQUE, IOWA
MEMORANDUM
July 28, 2005
TO: Michael C. Van Milligen, City Manager
FROM: Jonathan R Brown, WPCP Manager ~ ~ ~
SUBJECT: Design and Engineering Construction Phase Services
for the Cedar Street and Dog Track Wastewater Pump
Station Rehabilitations
INTRODUCTION
The purpose of the memorandum is to request that the City Council approve the
selection of WHKS & Co. to provide engineering and design services for
, modifications to the Cedar Street Lift Station and the Dog Track Lift Station.
BACKGROUND
The Cedar Street Lift Station serves a primarily industrial area along the
Mississippi River and the Couler Valley area. It has a hydraulic capacity of 14
MGD. A main contributor of flow to the lift station was Farmland Foods, a meat
processor. Farmland Foods was sold and subsequently the live kill at the facility
was eliminated. The plant eventually shut down. Flows from the facility to the
Cedar Street Lift Station have been reduced substantially.
The Cedar Street Lift Station was originally constructed in 1956 and rehabilitated
in 1968 and 1974. The mechanical equipment is 1968 vintage. The repair
frequency for the vintage equipment is increasing and replacement components
are becoming harder to find.
The pump motors are 2300 volt wound rotor motors with a liquid rheostat control
system. These older high voltage motors are becoming costly to maintain due to
difficulty finding components and the lack of motor shops that will work on the
higher voltage units. The voltage also makes it difficult and expensive to provide
emergency power.
The Dog Track Pump Station consists of an open top wet well and a separate
can-type dry pit with three pumps. It has a hydraulic capacity of 1.8 MGD. The
dry pit is accessible only through a tube enclosed single person lift. The dry pit is
considered a hazard to personnel due to the nature of the access to the dry pit.
The City of Dubuque wants to revamp this station to allow safe access and to
verify pump sizing based on anticipated future flows and future development in
the Dog Track-Schmidt Harbor area.
An RFP (request for proposal) was developed which required firms to address
the following tasks:
1. Update and review flow data from Cedar Street to confirm design flows
and pump sizing;
2. prepare an opinion of probable costs for the Cedar Street Station
improvements;
3. analyze flow data for the Dog Track Pump Station, determine appropriate
design flows, and develop concept for new Dog Track Pump Station
configuration for new pumps and safe access;
4. prepare an opinion of probable cost for the Dog Track Station
improvements, and
5. provide engineering services for the design, bidding and construction
phases.
DISCUSSION
Twelve RFP's were sent to local and area consulting firms. Eight firms
responded to the RFP's. Three firms were selected for interviews with a team
consisting of Deron Muehring, Wayne Polsean, Robert Green, and Jonathan
Brown. The firms interviewed were:
V&K Engineering
MSA Professional Services
WHKS & Co.
West Des Moines, Iowa
Dubuque, Iowa
Dubuque, Iowa
Firms were evaluated for experience; and technical ability; project design team;
design approach and methodology; project track records; firm's responsiveness;
local economic impact; schedule evaluation and the proposed cost to complete
the project.
The proposed engineering fees are as follows.
MSA $211,000
V&K $120,130
WHKS $103,000
RECOMMENDATION
Based upon the review of the proposals and interviews, the interview team
recommends that the City retain WHKS & Co. to provide engineering, design and
construction services for the Cedar Street Lift Station and Dog Track Lift Station
modifications. WHKS & Co. provides the best combination of cost, local
involvement and project experience.
ACTION REQUESTED
I respectfully request that the City Council approve the selection of WHKS &Co.
to provide engineering design and construction services for the Cedar Street Lift
Station and Dog Track Lift Station modifications project and to authorize the City
Manager to enter into an agreement with WHKS & Co. for the project.